CN112845521A - Recycling and reusing treatment system for waste metal barrels and application - Google Patents
Recycling and reusing treatment system for waste metal barrels and application Download PDFInfo
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- CN112845521A CN112845521A CN202011636694.XA CN202011636694A CN112845521A CN 112845521 A CN112845521 A CN 112845521A CN 202011636694 A CN202011636694 A CN 202011636694A CN 112845521 A CN112845521 A CN 112845521A
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The application relates to the technical field of chemical waste treatment, and particularly discloses a recycling treatment system and application of a waste metal barrel, wherein the recycling treatment system comprises 4 systems of pretreatment, drying and polishing, post-treatment and purification treatment; the application of the method is that firstly, the residual waste materials in the waste metal barrel are removed by a pretreatment system, the cover is pulled out, then the inner wall is dried, polished and polished by a drying and polishing system, the outer wall is shot-blasted, paint is removed and washed, and then the metal barrel which can be recycled is finally obtained by shaping the barrel body, seaming the barrel bottom, washing, performing rust-proof treatment in the barrel, air-drying and closing the cover by a post-treatment system. The whole recovery reprocessing process of this application does not have the high temperature process, can not have the dioxin to produce, has overcome high temperature annealing staving embrittlement problem simultaneously, and pretreatment system adopts the turn-ups to pull out the lid, can reduce the reduction of retrieving back staving effective volume, and the recovery reuse rate of old and useless metal bucket reaches more than 95%, and whole processing procedure environmental protection does not have the emission of waste water, waste gas and waste residue.
Description
Technical Field
The application relates to the technical field of chemical waste treatment, in particular to a recycling treatment system of a waste metal barrel and a method for recycling the waste metal barrel by using the recycling treatment system.
Background
The waste metal packaging barrel mainly takes oil paint, resin, solvent and mineral oil barrels, generally has the phenomena of rusting, deformation, internal bonding of oil residue or chemicals and the like, can bring air pollution to the surrounding environment when being discarded at will or stacked in the open air, can pollute water and soil when being leached by rainwater, and is particularly a waste packaging barrel which contains dangerous waste or is infected with the dangerous waste.
According to the records of the national records of hazardous waste (2016), the waste packaging container belongs to hazardous waste, the category of the hazardous waste is HW49 (other waste), and the code of the hazardous waste is 900-. Therefore, the waste metal packaging barrel should be recycled by professional manufacturers with the quality of hazardous waste treatment. At present, the widely used 200L steel barrel is generally made of materials with the thickness of 1.0-1.2mm, and most of the steel barrels can be recycled for multiple times.
At present, for the recovery processing in 200L waste metal barrel, mainly adopt and cut the lid, high temperature incinerator burns and gets rid of the bucket interior residue, then close the lid, obtain recoverable metal barrel of recycling, but the metal barrel after handling like this, can cause the staving to become fragile because of going through high temperature burning reannealing, reduce the life of the metal barrel of recycling after retrieving, simultaneously, because cut the lid and handle, the effective volume of bucket has been reduced, furthermore, can produce noxious material such as dioxin when high temperature incinerator burns and gets rid of the bucket interior residue, cause the interior VOCs of bucket to volatilize and exceed standard, thereby technical problem such as increase exhaust-gas treatment cost.
Disclosure of Invention
In order to solve the technical problems that an annealing barrel body becomes brittle due to high-temperature incineration, the service life of a recycled metal barrel is shortened and the like, a recycling treatment system of a waste metal barrel and a method for recycling the waste metal barrel by using the recycling treatment system are provided.
In a first aspect, the application provides a recycling treatment system for waste metal barrels, which adopts the following technical scheme:
a recycling treatment system for waste metal barrels comprises a pretreatment system, a drying and polishing system, a post-treatment system and a purification treatment system;
wherein the waste metal bucket comprises a waste metal bucket with residual liquid waste and a waste metal bucket with residual viscous waste;
in the application, the waste metal barrel with the volume of 200L is taken as an example for illustration, but the waste metal barrels with other volume scales are not limited to be recycled by the recycling treatment system;
the viscosity of the liquid waste in the waste metal barrel with the residual liquid waste is less than or equal to 500 centipoises, and the liquid waste with the viscosity less than or equal to 500 centipoises is dimethylbenzene, mineral oil, ethanol, water paint, water-based coating water or water-based ink and the like;
the viscosity of the viscous waste in the waste metal barrel with the residual viscous waste is 500-10000 centipoises, and the viscous waste with the viscosity of 500-10000 centipoises is phenolic resin, paint, resin or printing ink and the like;
the pretreatment system comprises a waste liquid absorption valve group I, a waste liquid storage tank, a waste liquid discharge valve group II, a turnover swing machine and a cap pulling machine, wherein the turnover swing machine and the cap pulling machine are in transmission connection through a conveying belt;
the top of the waste liquid storage tank is provided with a liquid inlet and an exhaust port, the bottom of the waste liquid storage tank is provided with a liquid discharge port, the inlet of the waste liquid absorption valve group I is inserted into a waste metal barrel with residual liquid waste or a waste metal barrel with residual viscous waste, and the outlet of the waste liquid absorption valve group I is connected with the liquid inlet of the waste liquid storage tank; when an inlet of the waste liquid absorption valve group I is inserted into a waste metal barrel with residual liquid waste, the waste liquid absorption valve group I is used for sucking the liquid waste in the waste metal barrel with the residual liquid waste into a waste liquid storage tank, and different liquid wastes collected in the waste liquid storage tank and coming from different waste metal barrels with residual liquid waste are uniformly mixed to obtain liquid waste;
a feed liquid discharge port of the waste liquid storage tank is connected with an inlet of a waste liquid discharge valve group II, and an outlet of the waste liquid discharge valve group II is inserted into a waste metal barrel with viscous waste materials; the waste liquid discharge valve group II is used for sending the liquid waste collected in the waste liquid storage tank into a waste metal barrel with residual viscous waste;
the turnover swing machine is used for carrying out turnover swing on the waste metal barrel with the residual viscous waste so as to realize the purpose that the added liquid waste and the viscous waste are mixed and dissolved fully, and the reason for analyzing the mixing and dissolving of the liquid waste is probably the result of the combined action of physical mixing and dissolving, chemical reaction dissolving and the like between the liquid waste obtained after the liquid waste with different viscosities less than 500 centipoises is mixed and the viscous waste with the viscosity of 500 plus 10000 centipoises;
after the added liquid waste and the viscous waste are fully mixed and dissolved, the obtained mixed waste is sucked out to a waste liquid storage tank by using a waste liquid absorption valve group I; when the inlet of the waste liquid absorption valve group I is inserted into a waste metal barrel with residual viscous waste, the mixed waste obtained by mixing and fully dissolving the liquid waste and the viscous waste is sent into a waste liquid storage tank;
when the waste liquid absorption valve group I is used, when the other end of the hard short pipe I of the waste liquid absorption valve group I is inserted into a waste metal barrel with residual liquid waste, the valve I and the liquid suction pump I are opened, so that the liquid waste in the waste metal barrel with residual liquid waste is pumped into a waste liquid storage tank through the liquid suction pump I;
when the other end of the hard short pipe I of the waste liquid absorption valve group I is inserted into a waste metal barrel with residual viscous waste, the valve I and the started liquid suction pump I are opened to realize that mixed waste obtained by mixing and fully dissolving liquid waste and viscous waste is sent into a waste liquid storage tank through the liquid suction pump I;
when the liquid waste or mixed waste collected in the waste liquid storage tank reaches a certain volume, entrusting an enterprise with outside hazardous waste operation and disposal permission and qualification to process;
the cover pulling machine is used for flanging, pulling the cover and cutting burrs on the barrel body of the waste metal barrel from which the residual liquid waste or viscous waste is removed to obtain the pulled waste metal barrel;
the drying and polishing system is used for drying and polishing the waste metal barrel subjected to cap pulling and obtained after being processed by the pretreatment system, the drying and polishing system sequentially comprises heating and polishing equipment and a shot blasting machine, and the heating and polishing equipment and the shot blasting machine are in transmission connection through a conveyor belt, so that the metal barrel subjected to cap pulling can be automatically circulated among the equipment in the drying and polishing system, and the carrying cost is reduced;
the cover pulling machine of the pretreatment system is in transmission connection with the heating and polishing equipment of the drying and polishing system through a conveyor belt, so that the waste metal barrel after being pulled out is convenient to flow between the cover pulling machine and the heating and polishing equipment of the drying and polishing system;
the heating polishing equipment is used for drying, heating, polishing and removing residual waste in the waste metal barrel after the cover is pulled out;
the heating and polishing equipment comprises a heater and a steel wire brush group device which can rotate in different angles and different directions, wherein the heater firstly heats the waste metal barrel after the cover is pulled out, volatile organic compounds escape after heating, the surface of residual waste in the barrel with a high boiling point is crusted due to heating and baking, and the heating mode of the heater is electric heating, natural gas or diesel oil combustion hot air heating; in the embodiment of the present application, the OLT35S type burner is merely exemplified, and the use of other heaters is not limited;
the inner wall of the waste metal barrel after the cover is pulled out and the waste metal barrel reversely rotate, so that residual waste materials with hard crusts on the surface in the waste metal barrel are polished and scrubbed;
the warmer and the steel wire brush groups which can rotate in different angles and different directions in the warming and polishing equipment work alternately, the warming is carried out once, the brushing and polishing are carried out once to form a group, and the circulation is 2-20 groups, the specific circulation times are determined according to the quantity, viscosity and other conditions of residual wastes, the circulation times of the residual wastes which are few and have low viscosity are 2 groups, the residual wastes which are many and have high viscosity can be circulated for 20 groups, and therefore almost all residual wastes with high boiling point in the barrel can be brushed, polished and removed; the stainless steel wire brush group which can rotate in different angles and different directions consists of 6 to 8 steel brushes;
the shot blasting machine is used for polishing and paint removing treatment on the outer wall of the waste metal barrel treated by the heating and polishing equipment and cleaning residual waste materials left on the inner wall again, the shot blasting machine comprises an upper barrel mechanism, a lower barrel mechanism and a shot blasting chamber, a shot blasting machine is arranged in the shot blasting chamber, and the process of shot blasting treatment is as follows:
the waste metal barrel after being pulled out of the cover is ground and then sent into a shot blasting chamber through an upper barrel mechanism of a shot blasting machine, a barrel supporting frame in the shot blasting chamber inclines upwards by 30 ℃, the upper barrel mechanism and a lower barrel mechanism are closed, the shot blasting speed of a shot blasting machine is controlled to be 30-120m/s, stainless steel balls or iron balls with the diameter of 0.1-1mm are thrown, the shot blasting time is controlled to be 25-30s, and the waste metal barrel after being pulled out of the shot blasting machine is sent out through the lower barrel mechanism after the shot blasting is finished;
dust gas generated in the processes of brushing and polishing of the drying and polishing equipment and shot blasting of the shot blasting machine is treated by the purification treatment system in sequence and then is discharged to the atmosphere;
the post-treatment system is used for post-treating the waste metal barrel treated by the drying and grinding system, and sequentially comprises polishing and grinding equipment, flushing equipment I, shaping equipment, seaming equipment, rust-proof treatment equipment, flushing equipment II, air drying equipment and flanging and cover closing equipment;
the shot blasting machine of the drying and grinding system is in transmission connection with the polishing and grinding equipment of the post-treatment system through a conveyor belt; polishing and grinding equipment, flushing equipment I, shaping equipment, seaming equipment, rust-proof treatment equipment, flushing equipment II, air drying equipment and flanging and cover closing equipment of the post-treatment system are sequentially connected through a conveying belt in a transmission manner;
the polishing and grinding equipment is used for polishing and grinding the inner wall of the waste metal barrel subjected to shot blasting treatment in the drying and grinding system again, and 6-8 groups of steel brushes which can be uniformly distributed on the inner wall of the waste metal barrel are used for polishing and grinding the inner wall of the waste metal barrel until the smoothness of the inner wall of the waste metal barrel is consistent;
the flushing equipment I is used for flushing when the polishing and grinding equipment polishes and grinds the inner wall of the waste metal barrel so as to remove part of dust generated in the polishing and grinding process of the polishing and grinding equipment I and steel shots stored in the bottom seam of the waste metal barrel after shot blasting treatment, and the other part of dust generated in the polishing and grinding process is removed through a purification treatment system;
the water outlet of the flushing device I is externally connected with a spray head, the flushed water is filtered by a water pipeline filter, the filtering precision is 10-15 mu m, the water filtered by the water filter circularly enters the flushing device I for recycling, no waste water is discharged in the whole flushing process, and a filter element of the water filter is periodically replaced;
the shaping equipment comprises an upper roller and a lower roller, the upper roller and the lower roller are attached to the inner wall and the outer wall of the waste metal barrel after the cover is pulled out, the shape of the waste metal barrel after being processed by the polishing and grinding system is corrected through the rotation of the upper roller, and the correction rate can reach more than 95%;
the seaming equipment comprises an upper seaming wheel and a lower seaming wheel, the waste metal barrel with the shaped appearance is tightly pressed through the upper seaming wheel and the lower seaming wheel, the seaming of the bottom edge of the barrel is realized through the rotation of the waste metal barrel body, the bottom edge of the barrel is shaped, and the residual waste materials in the seam of the bottom of the barrel are extruded;
the flushing device II is used for flushing partial dust generated by the polishing and grinding device in the polishing and grinding process and residual waste extruded from the barrel bottom seam in the seam closing treatment process with high-pressure water so as to flush and remove the partial dust and the residual waste extruded from the barrel bottom seam;
the washing equipment II comprises a water storage tank, a spray nozzle, a collecting tank, a water pipeline filter and a water pump, wherein a water outlet of the washing equipment II is sprayed out through the spray nozzle, the washed water enters the collecting tank and is filtered through the water pipeline filter, the filtering precision of the washing equipment II is 10-15 mu m, the water filtered by the water filter circularly enters the water storage tank of the washing equipment II through the water pump and is recycled, no waste water is discharged in the whole washing process, and a filter element of the water filter is periodically replaced;
the rust-proof treatment equipment comprises a liquid storage tank, a liquid spraying pump and a spray head, wherein rust-proof liquid in the liquid storage tank is pumped out through the liquid spraying pump and sprayed out through the spray head to perform rust-proof treatment on the interior of the waste stainless steel barrel washed by the washing equipment II, the rust-proof treatment enables the interior of the steel barrel not to rust easily, the storage time is prolonged, and the rust-proof liquid used for treatment is sold on the market;
the air drying equipment is used for removing all residual moisture and antirust liquid inside the waste metal barrel after high-pressure water washing and antirust treatment by volatilization; the air drying equipment comprises an air heater and an air cooler which are arranged at two stations on a chain machine, wherein the waste metal barrel subjected to rust prevention treatment is dried on the chain machine through the air heater and then through the air cooler in the air drying process, preferably, the hot air is dried for 30s, and the cold air is dried for 30 s;
the flanging and cover closing machine is used for flanging, flattening and curling the barrel body of the waste metal barrel subjected to air-drying treatment and the new barrel cover or the recyclable old barrel cover to realize cover closing treatment between the barrel body and the barrel cover;
the purification treatment system is used for degassing and dedusting of the waste metal barrel recycling treatment system and comprises dust purification equipment and gas purification equipment;
the gas purification equipment comprises degassing treatment equipment I of a waste liquid storage tank in the pretreatment system, drying and polishing equipment in the drying and polishing system and degassing treatment equipment II of metal dust gas generated in the working process of the shot blasting machine;
the dust purification equipment comprises drying and grinding equipment in a drying and grinding system, dust removal processing equipment I for metal dust gas generated in the working process of the shot blasting machine and dust removal processing equipment II for dust generated in the working process of polishing and grinding equipment in a post-processing system;
the dust removal processing equipment I consists of a cyclone filter I and a bag-type dust remover I, the dust removal processing equipment II consists of a cyclone filter II and a bag-type dust remover II, the degassing processing equipment I is an activated carbon adsorption filter I, and the degassing processing equipment II is an activated carbon adsorption filter II;
the drying and polishing equipment and an exhaust port pipeline of the shot blasting machine are respectively combined through a valve IV and a valve V, and the combined pipeline directly enters the atmosphere after sequentially passing through a cyclone filter I, a bag-type dust remover I and an active carbon adsorption filter I, so that the dust removal and degassing treatment of a drying and polishing system is realized;
an exhaust port of the polishing and grinding equipment directly enters the atmosphere after sequentially passing through a valve VI, a cyclone filter II and a bag-type dust collector II so as to realize dust removal treatment in the polishing and grinding process;
because the residual waste materials in the waste metal barrels are basically removed completely in the shot blasting and grinding process, a certain smooth finish is ensured only by polishing, and no harmful waste gas is generated, the polishing and grinding equipment is not provided with degassing treatment equipment;
an exhaust port of the waste liquid storage tank directly enters the atmosphere after passing through a valve III and an activated carbon adsorption filter I so as to realize the adsorption, filtration and removal of volatile organic gases generated by liquid waste liquid or mixed waste in the waste liquid storage tank;
the cyclone filter I and the cyclone filter II are respectively used for removing dust and particles with the particle size of more than 15 microns and less than or equal to 100 microns in metal dust gas generated by drying and polishing equipment and a shot blasting machine;
the cyclone filter I or the cyclone filter II can be replaced by a dry filter, and the cyclone filter is only exemplified in the application;
the cloth bag filter I and the cloth bag dust remover II are used for further removing dust and particles with the particle size of 10-15 mu m in metal dust waste gas generated by metal dust gas generated by drying and polishing equipment and a shot blasting machine;
the activated carbon adsorption filter I and the activated carbon adsorption filter II are used for adsorbing and removing volatile organic gases generated by liquid waste liquid or mixed waste in the waste liquid storage tank and volatile organic gases in metal dust gases generated by drying and polishing equipment and a shot blasting machine; the activated carbon used in the activated carbon adsorption filter I and the activated carbon adsorption filter II are detected according to a coal particle activated carbon test method (GB/T7702.1-7702.22-1997), the iodine value is 900-.
In the recycling treatment system for the waste metal barrels, the conveying belt is in transmission connection among the pretreatment system, the drying and polishing system and the post-treatment system and among the pretreatment system, the drying and polishing system, the post-treatment system and the purification treatment system only for reducing the cost of manual carrying during recycling of the waste metal barrels, and the waste metal barrels are not limited to be transported among the treatment devices by adopting other conveying modes in the recycling treatment system for the waste metal barrels.
Dust particles generated in the dust removal process of the cyclone filter I, the cyclone filter II, the cloth bag filter I and the cloth bag filter II are collected periodically and then are conveyed to an enterprise with hazardous waste operation disposal approval qualification for disposal; the cloth bags used in the dust removal process of the cloth bag filter are replaced periodically, and the replaced cloth bags are conveyed to enterprises with dangerous waste operation disposal approval qualification for disposal to be disposed.
By adopting the technical scheme, 80-90% of residual viscous waste can be removed after the residual viscous waste is mixed and dissolved fully by adopting the residual liquid waste in the waste metal barrel, the rest waste is subjected to shot blasting and polishing at the temperature of less than 100 ℃ and 350 ℃ through a drying and polishing system, all the waste is removed, and then the waste metal barrel is recovered and reprocessed through shaping, barrel bottom joint closing, flushing, rust-proof treatment, air drying and cover closing, namely the whole recovery and reprocessing process has no high-temperature process, so that the problem that the annealable barrel body becomes brittle and the service life is shortened is solved, and meanwhile, because the process control temperature is less than 500 ℃, the temperature does not generate dioxin, so the subsequent waste gas treatment cost is reduced. Further, for the direct position cutting bung that is close to the bung at the staving among the correlation technique and carries out the technology of retrieving, this recovery technology can make the effective volume of the bucket after retrieving reduce a lot relatively, and the lid process of pulling out of pretreatment systems of this application adopts turn-ups, pulls out the lid, cuts deckle edge, consequently for the recovery processing of cutting the lid among the correlation technique, more can guarantee that the effective volume of the old and useless metal bucket after retrieving can not reduce too much.
Furthermore, by adopting the technical scheme, the stainless steel wire brush groups which can rotate in different angles and different directions in the drying and polishing equipment are uniformly distributed at different positions in the waste metal bucket to be treated in the drying and polishing system, the waste material remained on the inner wall of the waste metal barrel is brushed off for the first time in all directions by generating high temperature through the reverse rotation friction with the waste metal barrel, then, throwing steel shots through a shot blasting machine in a high-speed rotating mode, so that the outer wall of the waste metal barrel after the cover is pulled out is subjected to polishing and paint removing treatment and the residues on the inner wall are removed for the second time, then, performing the third treatment on the inner wall of the waste metal barrel after the shot blasting treatment through polishing and grinding equipment, namely a stainless steel wire brush, cleaning and removing dust produced in the polishing and grinding process by the polishing and grinding equipment in cooperation with flushing equipment I, and simultaneously removing the steel shots stored in the bottom seam of the waste metal barrel after the shot blasting treatment; and finally, extruding residual waste materials in the barrel bottom through barrel bottom joint shaping and matching with a high-pressure flushing device II, so that the residual materials on the inner wall of the waste metal barrel are thoroughly removed, and finally the effect of the novel barrel reaches the use level of a new barrel.
Furthermore, dust generated in the working process of drying and grinding equipment in the drying and grinding system, a shot blasting machine and polishing and grinding equipment in the post-treatment system is treated by a purification treatment system, and collected dust particles are collected and conveyed to enterprises with hazardous waste operation and treatment permission and qualification for treatment at regular intervals for treatment; the cloth bag used by the purification treatment system is periodically replaced, the replaced cloth bag is conveyed to an enterprise with hazardous waste operation treatment permission and qualification for treatment, so that no residue is discharged in the whole recovery treatment process, and the concept of environmental protection production is met. Furthermore, volatile organic gases discharged from an exhaust port on the waste liquid storage tank are directly discharged after being treated by the tail gas purification system, and the discharge grade meets the GB16297-2017 comprehensive emission standard of atmospheric pollutants, so that the whole recovery treatment process has no waste gas discharge, is environment-friendly and meets the concept of environment-friendly production.
Furthermore, the washing equipment I used in the drying and polishing system and the washing equipment II used in the post-treatment system in the recycling treatment process have self-circulation treatment processes, and the used water is washed and used and then is filtered through the filter for recycling, so that the whole recycling treatment process has no wastewater discharge, is environment-friendly, and accords with the concept of environment-friendly production.
By adopting the scheme, after the liquid waste or viscous waste remained in the waste metal bucket to be treated is removed by the pretreatment system, the waste metal bucket is pulled out of the cover, sent to the drying and polishing system to carry out all-dimensional polishing on the residues on the inner wall of the waste metal bucket, and then subjected to polishing, paint removal and flushing on the outer wall, and then passed through the post-treatment system, namely, the bucket body is shaped by the shaping equipment, the seaming equipment carries out bucket bottom edge shaping, the flushing equipment II carries out high-pressure flushing, the antirust treatment equipment carries out antirust treatment, and the air drying equipment volatilizes and removes all the residual water and antirust liquid in the waste metal bucket; the flanging and cover closing machine performs flanging, flattening and curling on the barrel body and a new barrel cover or a recyclable old barrel cover to realize cover closing, so that the recycling of the waste metal barrel can be realized, and the recycling rate of the waste metal barrel as a new barrel can reach more than 95%.
Preferably, the waste liquid absorption valve group I comprises a valve I, a liquid absorption pump I, a short hose I and a hard short pipe I, wherein two ends of the short hose I are movably connected; the liquid suction pump I is a diaphragm pump, a vacuum pump, a slurry pump, a hose pump, a rotor pump or a screw pump.
Through adopting above-mentioned technical scheme, because waste liquid absorption valves I adopts the short hose I of both ends activity, realized that waste liquid absorption valves I is in the different old and useless metal bucket that has liquid waste material or in the old and useless metal bucket that has thick waste material of remaining of the thick waste material of abundant dissolution nimble removal processing to the treatment effeciency of old and useless metal bucket has been promoted. Furthermore, the mixed waste obtained by dissolving the residual liquid waste in the waste metal barrel and/or the residual viscous waste in the waste metal barrel is high in corrosivity, and the diaphragm pump, the vacuum pump, the mud pump, the hose pump, the rotor pump or the screw pump is high in corrosion resistance, so that the residual liquid waste and/or the mixed waste in the waste metal barrel can be effectively sucked out to the waste liquid storage tank, the liquid suction pump I cannot be corroded, and the service life of the liquid suction pump I is shortened.
Preferably, waste liquid discharge valves II include valve II, both ends swing joint's short hose II, hard nozzle stub II, valve II's entry links to each other with the export of waste liquid storage tank bottom, valve II's export links to each other with both ends swing joint's short hose II's one end, both ends swing joint's short hose II other end is connected with hard nozzle stub II's one end, hard nozzle stub II's the other end inserts and remains in the old and useless metal bucket that glues thick waste material, in the liquid waste material that is used for mixing different liquid waste materials in the waste liquid storage tank and forms puts into the old and useless metal bucket that remains to glue thick waste material, realize mixing and dissolving thick waste material and fully through liquid waste material, how much putting into of liquid waste material, control through control flap II.
Through adopting above-mentioned technical scheme, waste liquid discharge valves II among the pretreatment systems of old and useless metal bucket owing to adopt the short hose II of both ends activity, has realized that waste liquid discharge valves II is nimble to be removed in the old and useless metal bucket that remains viscous waste material of difference and has handled to the treatment effeciency of old and useless metal bucket has also further been promoted.
Preferably, the recycling treatment system for the waste metal barrel further comprises a waste liquid absorption valve group III;
the absorption valve group III comprises a valve III, a liquid absorption pump II, a short hose III and a hard short pipe III, wherein two ends of the short hose III are movably connected, one end of the short hose III, two ends of which are movably connected, is connected with one end of the hard short pipe III, the other end of the short hose III is connected with an inlet of the liquid absorption pump II through the valve III, and an outlet of the liquid absorption pump II is combined with an outlet pipeline of the liquid absorption pump I through a pipeline and then is connected with an inlet pipeline of a waste liquid storage tank;
the other end of the hard short pipe III is inserted into a waste metal barrel with residual viscous waste to realize the mixing of liquid waste formed by mixing different liquid wastes in a waste liquid storage tank and the fully dissolved viscous waste, and the mixed waste is sent into a waste liquid storage tank through a liquid suction pump II;
the liquid suction pump II is a diaphragm pump, a vacuum pump, a slurry pump, a hose pump, a rotor pump or a screw pump.
Through adopting above-mentioned technical scheme, when waste metal bucket handling capacity is more, can adopt waste liquid absorption valves I to absorb the waste liquid in the waste metal bucket that remains liquid waste in the pretreatment systems of waste metal bucket in the waste metal bucket, and adopt waste liquid absorption valves III alone to remain in the waste metal bucket that glues thick waste liquid by the liquid waste material miscibile that the different liquid waste materials in the waste liquid storage tank formed and fully dissolve in glue thick waste material and the mixed waste material that gets absorb in the waste liquid storage tank, thereby improve the recovery treatment efficiency of waste material in the waste metal bucket, further promote the treatment effeciency of waste metal bucket recovery and recycle. Furthermore, the mixed waste obtained by dissolving the viscous waste remained in the waste metal bucket has strong corrosivity, and the diaphragm pump, the vacuum pump, the slurry pump, the hose pump, the rotor pump or the screw pump has strong corrosion resistance, so that the mixed waste in the waste metal bucket can be effectively sucked out to the waste liquid storage tank, and the liquid suction pump II cannot be corroded, and the service life of the liquid suction pump II is reduced.
In a second aspect, the present application provides a method for recycling a waste metal bucket by using the recycling system for recycling a waste metal bucket, which adopts the following technical scheme:
a method for recycling waste metal barrels by using a recycling treatment system of the waste metal barrels comprises the following steps:
s1, classifying the waste metal barrels into waste metal barrels with residual liquid waste and waste metal barrels with residual viscous waste;
s2, opening the purification treatment system to enable the purification treatment system to be in a working state, namely opening a waste liquid storage tank, drying and polishing equipment, a shot blasting machine, a valve III, a valve IV, a valve V and a valve VI on the polishing and polishing equipment to enable the dust removal treatment equipment I, the degassing treatment equipment II, the dust removal treatment equipment I and the dust removal treatment equipment II to be in a working state;
s3, dissolving viscous waste in the waste metal bucket with the residual viscous waste by using different liquid wastes in the waste metal bucket with the residual liquid wastes to obtain the waste metal bucket with the liquid wastes removed and/or the waste metal bucket with the viscous wastes removed, which is specifically as follows:
firstly, sending the liquid waste in the waste metal bucket with the residual liquid waste into a waste liquid storage tank through a waste liquid absorption valve group I to obtain the waste metal bucket without the liquid waste;
then, liquid waste which is collected from a waste liquid storage tank and is obtained by mixing different liquid waste in waste metal barrels with residual liquid waste is sent into the waste metal barrels with residual viscous waste through a waste liquid discharge valve group II, and then sent into an overturning swing machine, and overturning swing is carried out by controlling the frequency of the overturning swing machine to be 5-50HZ, so that the liquid waste is mixed and dissolved fully to obtain mixed waste;
the liquid waste in the above-mentioned waste liquid storage tank and the quantity proportion of the viscous waste in the waste metal bucket that remains viscous waste calculate according to the volume ratio, liquid waste in the waste liquid storage tank promptly: the viscous waste in the waste metal bucket with the residual viscous waste is 1-100: 1;
then, the obtained mixed waste is sent into a waste liquid storage tank through a waste liquid absorption valve group I or a waste liquid absorption valve group III to obtain a waste metal barrel from which viscous waste is removed;
organic gas generated by volatilization of liquid waste and/or mixed waste collected in the waste liquid storage tank is directly discharged to the atmosphere after being adsorbed by degassing treatment equipment I, namely an activated carbon adsorption filter I, and the emission meets the GB16297-2017 comprehensive emission standard of atmospheric pollutants;
mixing the liquid waste and/or mixed waste collected in the waste liquid storage tank, and directly entrusting an external enterprise with hazardous waste operation, disposal and permission to treat;
s4, conveying the waste metal barrel without the liquid waste or the viscous waste to a cover pulling machine through a conveying belt to perform flanging, cover pulling and burr treatment of cutting the barrel body by 0.8-1.2mm to obtain the waste metal barrel after cover pulling;
s5, conveying the waste metal barrel after the cover is pulled out to a drying and polishing system through a conveying belt, and drying and polishing the inner wall and polishing the outer wall of the waste metal barrel after the cover is pulled out to remove paint, wherein the method comprises the following specific steps:
the method comprises the steps of firstly heating the inner wall of a waste metal barrel after the cap is pulled out by a heater in heating and polishing equipment, preferably heating to 100-, the emission grade meets the GB16297-2017 comprehensive emission standard of atmospheric pollutants;
the working modes of a heater and a steel wire brush group which can rotate in different angles and different directions in the heating and polishing equipment are that the heating is carried out once, the polishing and the brushing are carried out once to form a group, and 2-20 groups are circulated;
performing secondary shot blasting polishing and cleaning on residual waste materials on the inner wall of the waste metal barrel after the inner wall of the waste metal barrel is subjected to treatment by the drying and polishing equipment 21 and performing polishing and paint removing treatment on the outer wall by using a shot blasting machine, wherein dust gas generated in the secondary shot blasting polishing and cleaning process is discharged to the atmosphere after being sequentially treated by dust removal treatment equipment I, namely a cyclone filter I, a bag-type dust remover I and degassing treatment equipment II, namely an activated carbon adsorber II of a purification system, and the discharge grade meets the GB16297-2017 comprehensive emission standard of atmospheric pollutants;
s6, conveying the dried and polished waste metal barrel to a post-treatment system through a conveying belt, sequentially treating the waste metal barrel through polishing and polishing equipment, flushing equipment I, shaping equipment, seaming equipment, flushing equipment II, antirust treatment equipment, air drying equipment and flanging and cover closing equipment, and finally obtaining a reusable metal barrel, wherein the method comprises the following specific steps:
firstly, polishing and clearing residual waste on the inner wall of the waste metal barrel after being dried, polished and capped by polishing and grinding equipment for the third time, namely polishing and grinding the inner wall of the waste metal barrel after shot blasting treatment by using polishing and grinding equipment until the smoothness of the inner wall of the waste metal barrel is consistent;
after the polishing and the grinding are finished, washing by using a washing device I to remove part of dust produced in the polishing and the grinding process of the polishing and the grinding device, removing part of dust discharged by induced air at the top of the polishing and the grinding device by using a dust removal processing device II, namely a cyclone filter II and a bag-type dust remover II in a purification processing system, further washing by using the washing device I to remove steel shots existing in bottom seams of the waste metal barrel after shot blasting, filtering water washed by the washing device I to remove residual materials, and then completely recycling without discharging waste water;
then, reshaping the waste metal barrel which is flushed clean by the flushing device I by using reshaping equipment, wherein in the reshaping process, an upper roller and a lower roller of the reshaping equipment are attached to the inner wall and the outer wall of the waste metal barrel after the cap is pulled out, and the shape of the waste metal barrel after the cap is pulled out is corrected by rotating the upper roller;
secondly, performing barrel bottom joint closing on the waste metal barrel with the corrected external shape by using a joint closing machine, wherein in the barrel bottom joint closing process, the waste metal barrel subjected to rust prevention treatment is pressed tightly by using an upper joint closing wheel and a lower joint closing wheel of the joint closing machine, and barrel bottom joint closing is realized by rotating the waste metal barrel, so that barrel bottom edge shaping is realized;
then, flushing residual materials in the barrel bottom seam of the waste metal barrel after the barrel bottom edge is shaped by adopting flushing equipment II, and filtering the waste water generated after flushing to remove the residual materials for recycling without generating additional waste water;
then, carrying out rust prevention treatment on the interior of the waste metal barrel cleaned by the flushing device II by adopting rust prevention treatment equipment, wherein the rust prevention treatment is to pump out rust prevention liquid in the liquid storage tank by using a liquid spraying pump in the rust prevention treatment equipment and atomize and spray the rust prevention liquid to the inner wall of the waste metal barrel through a spray head so as to carry out rust prevention treatment on the inner wall of the waste metal barrel;
the antirust liquid used in the method is the antirust liquid commonly used in the field;
in the application, only the anti-rust treatment is taken as an example, in order to improve other performances such as corrosion prevention of the inner wall of the waste metal barrel, a certain additive with other performances such as corrosion prevention can be added into the anti-rust solution, that is, the anti-rust performance of the inner wall of the waste metal barrel is improved, and meanwhile, the additive also has other performances such as corrosion prevention, and the application is only illustrated by rust prevention, but is not limited to the use of other additives which contribute to providing other performances of the inner wall of the waste metal barrel;
then, air-drying the waste metal barrel subjected to high-pressure water washing and rust prevention treatment by adopting air-drying equipment until residual moisture and rust prevention liquid in the waste metal barrel are completely volatilized, drying the waste metal barrel subjected to rust prevention treatment on a chain machine in the air-drying process by using an air heater, and then drying the waste metal barrel by using an air cooler, wherein the hot air drying is preferably carried out for 30s, and the cold air drying is preferably carried out for 30 s;
and finally, a flanging and cover closing machine is adopted to perform cover closing treatment on the air-dried waste metal barrel body and a new barrel cover or a recyclable old barrel cover through flanging, flattening and curling, and finally the recyclable metal barrel is obtained.
By adopting the technical scheme, in the related technology, the cover cutting and high-temperature incinerator are mainly adopted for burning to remove residues in the barrel, then the cover is closed to obtain the recyclable metal barrel, but the metal barrel treated in the way can cause the barrel body to become brittle due to the adoption of high-temperature burning (the temperature of the metal barrel is as high as 700 plus 800 ℃) and re-annealing, the service life of the recycled metal barrel is shortened, meanwhile, the effective volume of the barrel is reduced due to the direct cover cutting treatment, further, toxic substances such as dioxin and the like can be generated when the high-temperature incinerator is used for burning to remove the residues in the barrel, the VOCs in the barrel are volatilized and exceed the standard, and the technical problems of waste gas treatment cost and the like are solved. This application is at first with the liquid waste material among the old and useless metal bucket that remains liquid waste material to remaining viscous waste material among the old and useless metal bucket that has viscous waste material dissolve, has realized the inside self-loopa utilization of waste material, simultaneously owing to do not need additionally to increase organic solvent, consequently can be great reduction the recovery processing cost of old and useless metal bucket. Meanwhile, the waste metal barrel is treated by adopting a drying mode firstly, the drying temperature is controlled to be 100-350 ℃, so that the waste metal barrel is dried and caked, and then the caked materials on the barrel wall are polished by matching with a steel brush to be homogenized, so that the waste metal barrel is completely removed, the materials generated in the process are completely harmless, dioxin is not generated, the content of VOCs (volatile organic compounds) is low, the environment is friendly, and the subsequent waste gas treatment cost is greatly reduced. Meanwhile, the maximum temperature in the recycling treatment process is only 350 ℃, so that the technical problem of service life reduction caused by annealing embrittlement is avoided.
Preferably, in S4, the waste metal barrel from which the liquid waste or viscous waste is removed is conveyed to a cap pulling machine by a conveyor belt to be flanged and pulled, and then rough edges of 0.8-1.2mm are cut on the barrel body.
Through adopting foretell technical scheme, this application is for directly cutting the lid and retrieve among the correlation technique, and the effective volume of the old and useless metal bucket after can effectually guaranteeing to retrieve can not reduce a lot.
Preferably, in S5, the waste metal barrel after being capped is conveyed to a heating polishing device of a drying polishing system through a conveyor belt to perform a first brushing polishing and cleaning on the residual waste material in the waste metal barrel after being capped, and the waste metal barrel is heated to 350 ℃ and maintained for 30-600S.
By adopting the technical scheme, the residual waste in the waste metal barrel after the cover is pulled out is dried by controlling the temperature to be 100-350 ℃ and keeping the temperature for 30-600 s, so that the materials generated in the process are completely harmless, dioxin is not generated, the content of VOCs is low, the environment is friendly, and the subsequent waste gas treatment cost is greatly reduced.
Preferably, in S5, the waste metal barrel after being capped is conveyed to a heating and polishing device of a drying and polishing system through a conveyor belt, and the residual waste material in the waste metal barrel after being capped is cleaned by brushing and polishing for the first time, wherein a heater and a steel wire brush set capable of rotating in different angles and different directions in the heating and polishing device work in a manner of heating once, brushing and polishing once as a group, and circulating for 2-20 groups.
By adopting the technical scheme, the treatment of the residual waste in the waste metal barrel is carried out by firstly drying and then polishing and scrubbing, the residual waste is dried and agglomerated due to the drying temperature controlled at 100-350 ℃, the agglomerated residual waste is polished and homogenized by the scrubbing of the steel brush, and further, the residual waste in the waste metal barrel is basically and completely removed by repeating the processes of drying, scrubbing and polishing.
Preferably, in the shot blasting treatment process of the shot blasting machine, the shot blasting speed of the shot blasting machine is controlled to be 30-120m/s, stainless steel balls or iron balls with the diameter of 0.1-1mm are thrown, and the treatment time is controlled to be 25-30 s.
By adopting the technical scheme, residual waste in the barrel can be further removed, the effects of paint removal outside the barrel and polishing are better guaranteed, the polishing and polishing effects can be influenced by the oversize or undersize shot blasting speed, the oversize or undersize shot blasting diameter, the processing time and the like, so that the removal of the residual waste in the waste metal barrel can be better guaranteed by controlling the shot blasting speed to be 30-120m/s, projecting stainless steel balls or iron balls with the diameter of 0.1-1mm and the processing time to be 25-30s, and the effects of paint removal outside the barrel and polishing are guaranteed.
Preferably, the method for recycling the waste metal barrel by using the recycling treatment system for the waste metal barrel comprises the steps that the effluent pressure of a flushing device I in the drying and polishing system is 0.2-0.3Mpa, and the effluent pressure of a flushing device II in the post-treatment system is 0.5-5 Mpa.
By adopting the technical scheme, in the drying and grinding stage, when the polishing and grinding equipment is used for polishing and grinding the inner wall of the waste metal barrel and washing the inner wall with water, the water outlet pressure of the washing equipment I is controlled to be 0.2-0.3Mpa, so that the dust produced by the polishing and grinding equipment I in the polishing and grinding process can be effectively removed by washing, and meanwhile, steel shots existing in the bottom seam of the waste metal barrel after shot blasting treatment can be removed by washing; when the water outlet pressure of the flushing device II is controlled to be 0.5-5Mpa in the post-treatment process, the dust generated by the polishing and grinding device or the residual waste extruded from the barrel bottom seam in the seaming process can be effectively and thoroughly flushed by high-pressure water.
In summary, the present application has the following beneficial effects:
(1) the utility model provides a system is recycled in recovery of old and useless metal bucket adopts earlier the mode of drying and scrubbing polishing again to the processing of the residue in the old and useless metal bucket, and stoving temperature control is at 100 + 350 ℃, "and the material that this process produced is innoxious completely, and does not produce dioxin, and the VOCs content is low, and is more friendly to the environment, has also greatly reduced follow-up exhaust-gas treatment cost. Meanwhile, when the cap is pulled out, the processes of flanging, pulling the cap and deburring are carried out for 0.8-1.2mm, so that the effective volume of the waste metal barrel can be ensured not to be reduced too much, meanwhile, the highest temperature in the recovery processing process is only 350 ℃, the technical problem of reduction of the service life caused by annealing embrittlement can not be caused, the recyclable metal barrel is finally obtained, and the reutilization rate of the waste metal barrel as a new barrel can reach more than 95%.
(2) The utility model provides a system is recycled in recovery of old and useless metal bucket, because the liquid waste material in the old and useless metal bucket that adopts in the pretreatment systems will remain liquid waste material dissolves the viscous waste material in the old and useless metal bucket that remains viscous waste material, has realized the inside self-loopa of waste material and has utilized, simultaneously owing to need not additionally increase organic solvent, consequently great reduction the cost to waste liquid treatment in the system is recycled to the recovery of old and useless metal bucket.
(3) The utility model provides a system is recycled in recovery of old and useless metal bucket, because adopt in the pretreatment systems owing to adopt swing joint's waste liquid absorbing valve group I to absorb in the waste liquid storage tank the liquid waste material among the different old and useless metal buckets that remain liquid waste material, adopt swing joint's waste liquid discharge valve group II to send into the liquid waste material of the collection in the waste liquid storage tank in the different old and useless metal buckets that remain viscous waste material, adopt waste liquid absorbing valve group III to remain viscous waste material that dissolves in the old and useless metal bucket that viscous waste material remains in the difference and mix the waste material promptly and absorb in the waste liquid storage tank, thereby improve the treatment effeciency of the waste material in the old and useless metal bucket.
(4) The recycling system of waste metal barrel does not have the discharge of waste gas, waste residue and waste water in the whole recycling process, and the discharged gas accords with GB16297-2017 comprehensive emission standard of atmospheric pollutants, is environment-friendly and accords with the concept of environmental protection production.
Drawings
Fig. 1 is a schematic process flow diagram of a recycling treatment system for waste metal barrels in embodiment 1, in which 111 is a waste metal barrel with liquid waste remaining, 112 is a waste metal barrel with viscous waste remaining, 121 is a valve I, 122 is a liquid suction pump I, 123 is a short hose I with two ends movably connected, 124 is a hard short pipe I, 13 is a waste liquid storage tank, 131 is an exhaust port pipeline valve III of the waste liquid storage tank, 141 is a valve II, 142 is a short hose II with two ends movably connected, 143 is a hard short pipe II, 15 is an overturning swing machine, and 16 is a cap pulling machine; 21 is a heating and grinding device, 211 is a heater, 212 is a steel wire brush set which can rotate in different angles and different directions, 213 is an exhaust port pipeline valve IV and 22 of the heating and grinding device are shot blasting machines, 221 is a pipeline valve V of an exhaust port of the shot blasting machine, 313 is a polishing and grinding device, 311 is a pipeline valve VI of the exhaust port of the polishing and grinding device, and 32 is a flushing device I; 33 is shaping equipment, 34 is seaming equipment, 35 is flushing equipment II, 36 is rust-proof treatment equipment, 37 is air drying equipment and 38 is flanging and cover closing equipment; 4111 is cyclone filter I, 4112 is cloth bag filter I, 4121 is cyclone filter II, 4122 is cloth bag filter II, 421 is activated carbon adsorption filter I, 422 is activated carbon adsorption filter II; in the figure
The transmission connection and the transmission direction of the two adjacent devices through the conveyor belt are shown;
FIG. 2 is a schematic view of a process flow of a recycling system for waste metal barrels in embodiment 2, wherein the valves 171 are liquid suction pumps II, 172 are liquid suction pumps II, 173 are short hoses III with two ends movably connected, 174 are hard short pipes III, other reference numerals are the same as those in FIG. 1, and the process flow is shown in the figure
The conveying direction of the waste metal barrel between two adjacent devices is shown.
Detailed Description
The present application will now be described in further detail by way of specific examples, but not by way of limitation, with reference to the accompanying drawings.
The raw materials and equipment used in the examples of this application are commercially available, except as specifically indicated in the following table:
| serial number | Device name | Specification and model | Manufacturer information |
| 1 | Diaphragm pump I | YL1 | Shanghai countryside source pump industry |
| 2 | Diaphragm pump II | YL1 | Shanghai countryside source pump industry |
| 3 | Turnover swinging machine | LZTX 200-FZYB-000 | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 4 | Cap pulling machine | LZTX 200-LG-000 | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 5 | Heating and polishing equipment | LZTX 200-DM4-000 | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 6 | Shot blasting machine | LZTX 200-PW4W-000 | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 7 | Flushing equipment I | 0.2-0.3Mpa | Environment protection of Shanghai Borui |
| 8 | Shaping equipment machine | LZTX 200-GZX-000 | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 9 | Seaming equipment machine | LZTX 200-HF-000 | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 10 | Rust-proof treatment equipment | LZTX 200-FX-000 | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 11 | Flushing device II | 0.5-30MPa | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 12 | Flanging and cover closing machine | LZTX 200-FB-000 | Tianjin Lvbo environmental protection Equipment manufacturing shares company |
| 13 | Cyclone filter I/II | 4m*4m*6m2m*3m*2.5m | Beijing Jae shield |
| 14 | Bag-type dust collector I/II | 2m*3m*2.5m | Beijing Jae shield |
| 15 | Activated carbon adsorption filter I/II | 2m*3m*2.5m | Beijing Jae shield |
The recovery rate of the waste metal barrel in each embodiment of the application is calculated by the following formula:
the recovery rate = the number of reusable metal buckets obtained after being treated by the recycling treatment system of the waste metal buckets/the number of waste metal buckets to be treated × 100%.
Example 1
A process flow schematic diagram of a recycling treatment system of a waste metal barrel is shown in figure 1, and the recycling treatment system comprises a pretreatment system 1, a drying and polishing system 2, a post-treatment system 3 and a purification system 4;
the pretreatment system 1 comprises a waste metal barrel 11 to be treated, a waste liquid absorption valve group I12, a waste liquid storage tank 13, a waste liquid discharge valve group II14, a turnover swinging machine 15 and a cap pulling machine 16, wherein the waste metal barrel 11, the turnover swinging machine 15 and the cap pulling machine 16 are sequentially in transmission connection through a conveyor belt;
the waste metal barrel 11 to be treated is divided into a waste metal barrel 111 with residual liquid waste and a waste metal barrel 112 with residual viscous waste, and the volume of the waste metal barrel 11 is 200L;
the liquid waste is dimethylbenzene with the viscosity of less than 500 centipoises, mineral oil, ethanol, water-based paint, water-based ink and the like;
the viscosity of the viscous waste in the waste metal barrel with the residual viscous waste is 500-10000 centipoises, and the viscous waste with the viscosity of 500-10000 centipoises is phenolic resin, coating, paint or printing ink and the like;
the waste liquid absorption valve group I12 comprises a valve I121, a liquid absorption pump I122, a short hose I123 with two ends movably connected and a hard short pipe I124, wherein one end of the short hose I123 with two ends movably connected is connected with one end of the hard short pipe I124, the other end of the short hose I123 with two ends movably connected is connected with the inlet of the liquid absorption pump I122 through the valve I121, and the outlet of the liquid absorption pump I122 is connected with the inlet pipeline of the waste liquid storage tank 13 through a pipeline;
the liquid suction pump I122 is a diaphragm pump I;
the outlet at the bottom of the waste liquid storage tank 13 is connected with the waste metal barrel 112 through a waste liquid discharge valve group II14,
liquid waste collected in the waste liquid storage tank 13 and coming from different waste metal barrels 111 with residual liquid waste is uniformly mixed to obtain liquid waste, and the liquid waste is sent into the waste metal barrel 112 through a discharge port at the bottom of the waste liquid storage tank 13 and a waste liquid discharge valve group II14, so that the liquid waste collected in the waste liquid storage tank 13 is sent into the waste metal barrel 112 to dissolve viscous waste in the waste metal barrel 112;
the turnover swinging machine 15 is used for turnover swinging the waste metal barrel 112 so as to realize that the liquid waste added into the waste metal barrel 112 and the viscous waste therein are mixed and dissolved sufficiently, and the mixed waste obtained after mixing and dissolving sufficiently is sucked out to the waste liquid storage tank 13 by using a waste liquid absorption valve group I;
the waste liquid discharge valve group II14 comprises a valve II141, a short hose II142 with two ends movably connected, and a hard short pipe II143, wherein an inlet of the valve II141 is connected with an outlet at the bottom of the waste liquid storage tank 13, an outlet of the valve II141 is connected with one end of the short hose II142 with two ends movably connected, the other end of the short hose II142 with two ends movably connected is connected with one end of the hard short pipe II143, and the other end of the hard short pipe II142 is inserted into the waste metal bucket 112, so as to feed the liquid waste liquid collected in the waste liquid storage tank 13 into the waste metal bucket 112 for dissolving viscous waste materials in the waste metal bucket 112;
when in use, the other end of the hard short pipe I124 is inserted into the waste metal bucket 111, so that the liquid waste in the waste metal bucket 111 is pumped into the waste liquid storage tank 13 through the liquid suction pump I122;
when the other end of the hard short pipe I124 is inserted into the waste metal bucket 112, the mixed waste finally obtained by dissolving the viscous waste by the liquid waste is pumped into the waste liquid storage tank 13 by the liquid suction pump I122;
the liquid waste and/or mixed waste collected in the waste liquid storage tank 13 is mixed and then directly entrusted to an external enterprise with hazardous waste operation, disposal, approval and qualification for treatment;
the cap remover 16 is used for performing flanging, cap removing and burr removing treatments on the waste metal barrel 111 from which the liquid waste is removed and the waste metal barrel 112 from which the viscous waste is removed;
the drying and grinding system 2 comprises a heating and grinding device 21, a shot blasting machine 22, a polishing and grinding device 23 and a flushing device I24; the heating and grinding equipment 21, the shot blasting machine 22, the polishing and grinding equipment 23 and the flushing equipment I24 are sequentially connected through a conveyor belt in a transmission manner;
the cover pulling machine 16 of the pretreatment system 1 is in transmission connection with the heating and polishing equipment 21 through a conveyor belt;
the heating and polishing device 21 comprises a heater 211 and a steel wire brush group 212 which can rotate in different angles and different directions, wherein the heater 211 adopts an OLT35S type burner, and the heating mode adopts an electric heating mode and is used for drying and heating the residual waste on the inner wall of the waste metal barrel 111 or the waste metal barrel 112 after the cover is pulled out;
the steel wire brush group 212 capable of rotating in different angles and different directions consists of 6 to 8 steel brushes, can be uniformly distributed at different positions of the inner wall of the waste metal barrel 111 or the waste metal barrel 112 after the cover is pulled out, and generates high temperature through the reverse rotating friction with the waste metal barrel 111 or the waste metal barrel 112 after the cover is pulled out, so that the residual waste on the inner wall of the waste metal barrel 111 or the waste metal barrel 112 after the cover is pulled out is brushed and polished in all directions for the first time;
the shot blasting machine 22 is used for polishing and paint removing treatment on the outer walls of the waste metal barrels 111 and the waste metal barrels 112 after being treated by the drying and polishing equipment 21 and performing secondary shot blasting, polishing and cleaning on residues on the inner walls, the shot blasting machine 22 comprises an upper barrel mechanism, a lower barrel mechanism and a shot blasting chamber, and a shot blasting device is arranged in the shot blasting chamber;
the waste metal barrel 111 or the waste metal barrel 112 dried and polished by the heating and polishing equipment 21 is sent into a shot blasting chamber through a barrel loading mechanism of the shot blasting machine 22, a barrel supporting frame in the shot blasting chamber is inclined upwards by 30 ℃, the barrel loading mechanism and the barrel unloading mechanism are closed, the shot blasting speed of a shot blasting machine is controlled to be 30m/s, stainless steel balls or iron balls with the diameter of 1mm are thrown out for processing for 30s, polishing and paint removing processing is carried out on the outer wall of the dried and polished waste metal barrel 111 or waste metal barrel 112, meanwhile, residual waste materials on the inner wall are cleaned up again for the second time, and the barrel unloading mechanism is used for sending the shot-blasted waste metal barrel 111 or waste metal barrel 112 out of the shot blasting machine 22;
the polishing and grinding equipment 23 is used for polishing and grinding the inner walls of the waste metal barrel 111 and the waste metal barrel 112 which are treated by the shot blasting machine 22 again, and the polishing and grinding equipment 23 comprises 6-8 groups of steel brushes which can be uniformly distributed on the inner wall of the waste metal barrel to polish and grind the inner walls of the waste metal barrel 111 and the waste metal barrel 112, so that the inner walls of the waste metal barrel 111 and the waste metal barrel 112 are smooth and clean and are free of dirt;
the flushing device I24 is used for flushing the polishing and grinding device 23 when polishing and grinding the inner walls of the waste metal barrel 111 and the waste metal barrel 112, so as to flush and remove dust produced by the polishing and grinding device I23 in the polishing and grinding process, and flush and remove steel shots existing in the bottom seam of the waste metal barrel after shot blasting treatment, wherein the outlet water pressure of the equipment is 0.2-0.3Mpa, the water outlet of the flushing device I24 is externally connected with a spray head, the flushed water enters a collecting tank and is filtered by a water pipeline filter, the filtering precision is 10-15 mu m, the water filtered by the water filter circularly enters the flushing device I24 and is recycled, no waste water is discharged in the whole flushing process, and a filter element of the water filter is periodically replaced;
the post-treatment system 3 is used for post-treating the waste metal barrel 111 and the waste metal barrel 112 which are treated by the drying and polishing system 2, the post-treatment system 3 sequentially comprises a shaping device 31, a seaming device 32, a flushing device II33, an anti-rust treatment device 34, an air drying device 35 and a flanging and cover closing device 36, and the shaping device 31, the seaming device 32, the flushing device II33, the anti-rust treatment device 34, the air drying device 35 and the flanging and cover closing device 36 are sequentially in transmission connection through a conveyor belt;
the flushing device I in the drying and polishing system is in transmission connection with the shaping device 31 of the post-processing system 3 through a conveyor belt;
the shaping equipment 31 comprises an upper roller and a lower roller, the upper roller and the lower roller are attached to the inner and outer walls of the waste metal barrel 111 and the waste metal barrel 112 after the covers are pulled out, the shapes of the waste metal barrel 111 and the waste metal barrel 112 after being processed by the polishing and grinding system are corrected through the rotation of the upper roller, and the correction rate can reach 92%;
the seaming equipment 32 comprises an upper seaming wheel and a lower seaming wheel, the waste metal barrel 111 and the waste metal barrel 112 with the shaped shapes are pressed tightly through the upper seaming wheel and the lower seaming wheel, the barrel bottom edges of the waste metal barrel 111 and the waste metal barrel 112 are seamed through the rotation of barrel bodies of the waste metal barrel 111 and the waste metal barrel 112, the barrel bottom edges are shaped, and finally residual waste materials in the barrel bottom seams are extruded;
the flushing equipment II33 is used for flushing residual waste extruded from the bottom seams of the waste metal barrel 111 and the waste metal barrel 112 after the barrel bottom joint closing treatment with high pressure water to remove the residual waste extruded from the bottom seams, the water outlet pressure is 3-5Mpa, the flushing equipment II33 comprises a water storage tank, a spray head, a collecting tank, a water pipeline filter and a water pump, the water in the water storage tank of the flushing equipment II is controlled to be 3-5Mpa and is sprayed out through the spray head to realize the flushing of the residual waste extruded from the bottom seams of the waste metal barrel 111 and the waste metal barrel 112 after the barrel bottom joint closing treatment with high pressure water, the flushed water enters the collecting tank and is filtered through the water pipeline filter, the filtering precision is 10-15 mu m, the water filtered by the water filter is pumped out through the water pump and then enters the water storage tank of the flushing equipment II33 for recycling, no waste water is discharged in the whole flushing process, and a filter element of the water filter is replaced at regular intervals;
the anti-rust treatment equipment 34 is used for performing anti-rust treatment on the interiors of the waste metal barrel 111 and the waste metal barrel 112 which are washed by the washing equipment II33, the anti-rust treatment aims at enhancing the anti-rust and anti-corrosion properties of the inner wall, so that the service life is prolonged, and anti-rust liquid used for the treatment is commercially available; the antirust treatment equipment 34 comprises a liquid storage tank, a liquid spraying pump and a spray head, wherein antirust liquid in the liquid storage tank is pumped out by the liquid spraying pump and sprayed out to the inner walls of the waste metal barrel 111 and the waste metal barrel 112 by the spray head;
the air drying equipment 35 is used for volatilizing and removing all residual moisture and antirust liquid in the waste metal barrel 111 and the waste metal barrel 112 after the antirust treatment; the air drying equipment 35 comprises an air heater and an air cooler which are arranged at two stations on a chain machine, and the waste metal barrel subjected to rust prevention treatment in the air drying process is dried on the chain machine by the air heater and then by the air cooler for 30s by hot air and 30s by cold air;
the flanging and cover closing machine 36 is used for flanging, flattening and curling the barrel bodies of the waste metal barrels 111 and the waste metal barrels 112 subjected to air-drying treatment and the new barrel covers or recyclable old barrel covers to realize cover closing treatment of the barrel bodies and the barrel covers;
the purification treatment system 4 is used for degassing and dedusting of a recycling treatment system of the waste metal barrel and comprises a dust purification device 41 and a gas purification device 42;
the dust purification device 41 comprises a drying and grinding device 21 in the drying and grinding system 2, a dust removal processing device I411 for metal dust gas generated in the working process of the shot blasting machine 22, and a dust removal processing device II412 generated in the working process of the polishing and grinding device 31 in the post-processing system 3;
the gas purification device 42 comprises a degassing treatment device I421 of the waste liquid storage tank 13 in the pretreatment system 1, a drying and polishing device 21 in the drying and polishing system 2 and a degassing treatment device II422 of metal dust gas generated in the working process of the shot blasting machine 22;
the dust removal processing equipment I411 comprises a cyclone filter I4111 and a bag-type dust remover I4112, the dust removal processing equipment II412 comprises a cyclone filter II4121 and a bag-type dust remover II4122, the degassing processing equipment I421 is an activated carbon adsorption filter I, and the degassing processing equipment II422 is an activated carbon adsorption filter II;
the air outlet pipelines of the drying and polishing device 21 and the shot blasting machine 22 are respectively merged after passing through a valve IV213 and a valve V221, and the merged pipelines directly enter the atmosphere after sequentially passing through a cyclone filter I4111, a bag-type dust collector I4112 and an activated carbon adsorption filter II422, so that the dust removal and degassing treatment of the drying and polishing system 2 are realized;
the exhaust port of the polishing and grinding equipment 31 passes through a valve VI311, a cyclone filter II4121 and a bag-type dust collector II4122 in sequence and then directly enters the atmosphere to realize dust removal treatment in the polishing and grinding process, because volatile organic gases are completely removed after the waste metal barrel 111 and the waste metal barrel 112 are treated by the pretreatment system 1 and the drying and grinding system 2, the outlet of the bag-type dust collector II4122 of the dust removal treatment equipment II412 can be directly discharged to the atmosphere in the post-treatment system 3;
an exhaust port of the waste liquid storage tank 13 directly enters the atmosphere after passing through a valve III131 and an activated carbon adsorption filter I421;
the cyclone filter I4111 and the cyclone filter II4121 are respectively used for removing dust and particulate matters with the particle size of less than or equal to 100 μm and less than or equal to 15 μm in metal dust gas generated by the drying and polishing equipment 21 and the shot blasting machine 22;
the cloth bag filter I4112 and the cloth bag dust remover II4122 are used for further removing dust and particulate matters with the particle size of below 15 microns in metal dust gas generated by the drying and polishing equipment 21 and the shot blasting machine 22;
the degassing treatment equipment I421, namely an activated carbon adsorption filter I, is used for adsorbing volatile organic gas generated by liquid waste liquid or mixed waste in the waste liquid storage tank 13, and the degassing treatment equipment II422, namely an activated carbon adsorption filter II, is used for adsorbing and removing volatile organic gas in metal dust gas generated by the drying and polishing equipment 21 and the shot blasting machine 22;
the activated carbon used as the adsorption media of the activated carbon adsorption filter I and the activated carbon adsorption filter II is detected according to a coal particle activated carbon test method (GB/T7702.1-7702.22-1997), the iodine values of the activated carbon are both 900-1100, and after the activated carbon with the iodine value of 900-1100 is used, the activated carbon is regenerated by an activated carbon adsorption, concentration and desorption regeneration process known in the art and is recycled.
Dust particles generated in the dust removal process of the cyclone filter I4111, the cyclone filter II4121, the cloth bag filter I4112 and the cloth bag filter II4122 are collected regularly and then conveyed to an enterprise with dangerous waste operation, disposal and permission qualification for disposal to dispose;
the cloth bags used in the dust removal process of the cloth bag filter I4112 and the cloth bag filter II4122 are periodically replaced, and the replaced cloth bags are conveyed to qualified enterprises for disposal.
The treatment method for recycling the waste metal barrel by using the recycling treatment system of the waste metal barrel specifically comprises the following steps:
s1, classifying the waste metal barrel 11 to be processed into a waste metal barrel 111 with residual liquid waste and a waste metal barrel 112 with residual viscous waste;
s2, opening the purification treatment system 4, namely opening the waste liquid storage tank 13, the drying and grinding device 21, the shot blasting machine 22, the valve III131, the valve IV213, the valve V221 and the valve VI311 on the polishing and grinding device 31 to enable the degassing treatment device I421, the degassing treatment device II422, the dust removal treatment device I411 and the dust removal treatment device II412 to be in working states;
s3, dissolving the viscous waste in the waste metal bucket 112 with the viscous waste by using the liquid waste obtained by mixing different liquid wastes in the waste metal bucket 111 with the residual liquid wastes, to obtain the waste metal bucket 111 with the liquid waste removed and the waste metal bucket 112 with the viscous waste removed, which are as follows:
firstly, sending the liquid waste in the waste metal barrel 111 with the residual liquid waste into a waste liquid storage tank 13 through a waste liquid absorption valve group I12 to obtain the waste metal barrel 111 with the liquid waste removed; then, liquid waste obtained by uniformly mixing liquid waste collected from different waste metal barrels 111 with residual liquid waste in the waste liquid storage tank 13 is sent to the waste metal barrel 112 with residual viscous waste through a waste liquid discharge valve group II14, and then is turned and swung through the waste metal barrel 112 by controlling the frequency of the turning and swinging machine 15 to be 50HZ, so that the viscous waste is mixed and dissolved sufficiently by the liquid waste to obtain mixed waste;
the proportion of the liquid waste in the waste liquid storage tank 13 to the amount of the viscous waste in the waste metal bucket with the residual viscous waste is calculated according to the volume ratio, namely, the liquid waste in the waste liquid storage tank 13: the ratio of the viscous waste in the waste metal bucket with the residual viscous waste is 1: 1;
then, the obtained mixed waste is sent into a waste liquid storage tank 13 through a waste liquid absorption valve group I12, and a waste metal barrel 112 with viscous waste removed is obtained;
the liquid waste and/or mixed waste collected in the waste liquid storage tank 13 is mixed and then directly entrusted to an external enterprise with hazardous waste operation, disposal, approval and qualification for treatment;
organic gas generated by volatilization of the liquid waste and/or the mixed waste collected in the waste liquid storage tank 13 is directly discharged to the atmosphere after being adsorbed by degassing treatment equipment I421, namely an activated carbon adsorption filter I, and the outgassed emission is adsorbed and meets the GB16297-2017 comprehensive emission standard of atmospheric pollutants;
s4, conveying the waste metal barrel 111 without the liquid waste or the waste metal barrel 112 without the viscous waste to a cap pulling machine 16 through a conveyor belt for flanging, cap pulling and 1mm burr cutting to obtain the cap-pulled waste metal barrel 111 or waste metal barrel 112;
s5, the pulled waste metal bucket 111 or waste metal bucket 112 is conveyed to the drying and polishing system 3 by a conveyor belt, so that the inner wall of the pulled waste metal bucket 111 or waste metal bucket 112 is dried, polished and the outer wall is subjected to shot blasting to remove paint, and the method specifically comprises the following steps:
firstly, a warmer 211 in a warming and polishing device 21 is adopted to heat the inner wall of the pulled waste metal barrel 111 or waste metal barrel 112 at a temperature of 100 ℃ for 600s, after heating, volatile organic compounds with low boiling points in the pulled waste metal barrel 111 or waste metal barrel 112 are discharged through a valve IV213 arranged at an exhaust port of the warming and polishing device 21, adsorbed through an activated carbon adsorption filter II421 and assigned to the atmosphere, and the surface of the residual waste materials is baked into a hard skin due to warming; then, the steel wire brush groups 212 which can rotate in different angles and different directions scrub and remove residual waste materials which are hard-skinned on the inner walls of the waste metal barrel 111 or the waste metal barrel 112 after the cover is pulled out, and the steel wire brush groups 212 which can rotate in different angles and different directions in the scrubbing and removing process reversely rotate on the inner walls of the waste metal barrel 111 or the waste metal barrel 112 and the barrel body of the waste metal barrel 111 or the waste metal barrel 112, so that the residual waste materials which are hard-skinned on the inner walls of the waste metal barrel 111 or the waste metal barrel 112 are scrubbed and removed;
in the working process of the heating and polishing device 21, one heating and one brushing are combined into one group, and 2 groups are circulated, so that the residual waste in the waste metal barrel 111 or the waste metal barrel 112 after the cover is pulled out is cleaned by brushing and polishing for the first time;
then, controlling the shot blasting speed of the shot blasting machine to be 30m/s by using the shot blasting machine 22, projecting stainless steel balls or iron balls with the diameter of 1mm, and carrying out polishing paint removal treatment on the outer wall of the pulled waste metal barrel 111 or waste metal barrel 112 for 25-30s and carrying out secondary shot blasting polishing and removal on residual waste materials after the inner wall is treated by the drying and polishing equipment 21;
when the residual waste on the inner wall of the waste metal bucket 211 and the waste metal bucket 212 is cleaned by the first brushing and polishing and cleaned by the second shot blasting and polishing by the shot blasting machine by the drying and polishing equipment 21, dust gas generated by the brushed waste materials respectively passes through a valve IV213 and a valve V221 and then is merged into a dust removal treatment system I411 for dust removal, then the waste gas is discharged to the atmosphere after being absorbed by a degassing treatment system II422, namely an active carbon absorption filter II, because the waste residue generated in the dust removal process of the dust removal processing system I411 is regularly cleaned and sent to enterprises with processing qualification for processing, the waste residue is further processed by the degassing processing system II422, namely the activated carbon adsorption filter II to adsorb the discharged gas after degassing and meets the GB16297-2017 comprehensive emission standard of atmospheric pollutants, therefore, the drying and polishing equipment 21 and the shot blasting machine 22 have no waste residue and waste gas emission in the whole recovery and treatment process;
s6, conveying the waste metal barrel 111 or the waste metal barrel 112 processed by the drying and grinding system 2 to a post-processing system 3 through a conveying belt, and sequentially processing the waste metal barrel 111 or the waste metal barrel 112 through a polishing and grinding device 31, a flushing device I32, a shaping device 33, a seaming device 34, a flushing device II35, an anti-rust processing device 36, an air drying device 37 and a flanging and cover closing device 38 to finally obtain a reusable metal barrel, wherein the specific steps are as follows:
firstly, polishing and grinding the inner wall of the waste metal barrel 111 or the waste metal barrel 112 processed by the drying and grinding system 2 by using polishing and grinding equipment 31 until the smoothness of the inner wall of the waste metal barrel is consistent, so as to carry out the third polishing and grinding cleaning on the residues of the inner wall, introducing the air induced by a valve VI311 into a dust removal processing system II412 for dust removal in the polishing and grinding process, so as to clean the dust generated in the polishing and grinding process, flushing the residues by flushing equipment I32 with the water pressure of 0.2MPa so as to remove the dust which is not removed in the polishing and grinding process by using the polishing and grinding equipment 31, and simultaneously removing the steel shots existing in the bottom seam of the waste metal barrel processed by shot blasting, filtering the flushed water to remove the residues (wherein the residues comprise the dust particles generated in the polishing and grinding process, and the steel shots existing in the bottom seam of the waste metal barrel processed by shot blasting), the whole process is recycled, and no wastewater is discharged;
then, shaping the waste metal barrel 111 or the waste metal barrel 112 which is washed clean by the washing device I32 by using a shaping device 33, wherein in the shaping process, an upper roller and a lower roller of the shaping device 33 are attached to the inner wall and the outer wall of the waste metal barrel 111 or the waste metal barrel 112 after the cover is pulled out, and the shape of the waste metal barrel 111 or the waste metal barrel 112 after the cover is pulled out is corrected by the rotation of the upper roller;
then, performing barrel bottom joint closing treatment on the waste metal barrel 111 or the waste metal barrel 112 with the modified outer shape by using a joint closing machine 34, wherein in the barrel bottom joint closing process, the waste metal barrel 111 or the waste metal barrel 112 subjected to rust prevention treatment is pressed tightly by using upper and lower joint closing wheels of the joint closing machine, and barrel bottom joint closing is realized by rotating the waste metal barrel 111 or the waste metal barrel 112, so that barrel bottom edge shaping is realized;
then, a flushing device II35 is adopted to control the water pressure of the residual materials in the bottom seams of the waste metal barrels 111 and 112 after the barrel bottom edges are shaped to be 0.5MPa for flushing, and the waste water generated after flushing is recycled after the residual materials in the bottom seams of the waste metal barrels 111 and 112 are filtered out, so that no extra waste water is generated;
then, performing rust prevention treatment on the inside of the waste metal barrel 111 or the waste metal barrel 112 after the shape correction and the barrel bottom edge shaping by using rust prevention treatment equipment 36, wherein the rust prevention treatment is performed by pumping out rust prevention liquid in a liquid storage tank by using a liquid spraying pump in the rust prevention treatment equipment 36 and spraying the pumped rust prevention liquid to the inner wall of the waste metal barrel 111 or the inner wall of the waste metal barrel 112 through spraying of a spraying head so as to perform rust prevention treatment on the inner wall of the waste metal barrel 111 or the inner wall of the waste metal barrel 112;
the antirust liquid is prepared by mixing polyethylene acid and sodium polyacrylate in a weight ratio of 7: 1;
then, air-drying the waste metal barrel 111 or the waste metal barrel 112 subjected to the rust prevention treatment by using air-drying equipment 37 until the residual moisture and the rust prevention liquid in the waste metal barrel 111 or the waste metal barrel 112 are completely volatilized, wherein an air heater and an air cooler of the air-drying equipment work for 30s in the air-drying treatment process;
and finally, performing flanging, flattening and curling on the barrel body and the barrel cover of the air-dried waste metal barrel 111 or the barrel body of the waste metal barrel 112 and a new barrel cover or a recyclable old barrel cover by using a flanging and cover closing machine 38 to finally obtain the recyclable metal barrel.
The recycling rate of the waste metal barrel is 95 percent after the waste metal barrel is recycled by the recycling and reprocessing system of the waste metal barrel.
Example 2
A process flow schematic diagram of a recycling treatment system of a waste metal barrel is shown in figure 2, and comprises a pretreatment system 1, a drying and polishing system 2, a post-treatment system 3 and a purification treatment system 4;
the pretreatment system 1 comprises a waste metal barrel 11 to be treated, a waste liquid absorption valve group I12, a waste liquid storage tank 13, a waste liquid discharge valve group II14, a turnover swing machine 15 and a cap pulling machine 16, and also comprises a waste liquid absorption valve group III 17;
the waste liquid absorption valve group III17 comprises a valve VII171, a liquid absorption pump II172, a short hose III173 with two ends movably connected and a hard short pipe III174, wherein one end of the short hose III173 with two ends movably connected is connected with one end of the hard short pipe III174, the other end is connected with the inlet of the liquid absorption pump II172 through the valve VII171, the outlet of the liquid absorption pump II172 is combined with the outlet pipeline of the liquid absorption pump I122 through a pipeline and then is connected with the inlet pipeline of the waste liquid storage tank 13;
the other end of the hard short pipe III174 of the waste liquid absorption valve group VII17 is inserted into the waste metal bucket 112 to achieve the purpose of mixing and dissolving the liquid waste added into the waste metal bucket 112 and the viscous waste therein sufficiently, and then the obtained mixed waste is pumped into the waste liquid storage tank 13 by the liquid absorption pump II 172;
the liquid suction pump II172 is a diaphragm pump II;
the other drying and polishing systems 2, the post-treatment system 3, and the purification system 4 are the same as those of embodiment 1.
The treatment method for recycling the waste metal barrel by using the recycling treatment system of the waste metal barrel specifically comprises the following steps:
s1, classifying the waste metal barrel 11 to be processed into a waste metal barrel 111 with residual liquid waste and a waste metal barrel 112 with residual viscous waste;
s2, same as S2 of example 1;
s3, dissolving the viscous waste in the waste metal bucket 112 with the viscous waste by using the liquid waste obtained by mixing different liquid wastes in the waste metal bucket 111 with the residual liquid waste to obtain the waste metal bucket 111 with the residual liquid waste removed and the waste metal bucket 112 with the residual viscous waste removed, which are as follows:
firstly, liquid waste in the solvent-based waste metal barrel 111 with the residual liquid waste is sent to the waste liquid storage tank 13 through the waste liquid absorption valve group I12, and the waste metal barrel 111 with the residual liquid waste removed is obtained;
then, liquid waste obtained by uniformly mixing liquid waste collected from different waste metal barrels 111 with residual liquid waste in the waste liquid storage tank 13 is sent to the waste metal barrel 112 with residual viscous waste through a waste liquid discharge valve group II14, and then is turned and swung through the waste metal barrel 112 by controlling the frequency of the turning and swinging machine 15 to be 5Hz, so that the viscous waste is mixed and dissolved sufficiently by the liquid waste to obtain mixed waste;
the liquid waste in the above-mentioned waste liquid storage tank and the quantity proportion of the viscous waste in the waste metal bucket that remains viscous waste calculate according to the volume ratio, liquid waste in the waste liquid storage tank promptly: the viscous waste in the waste metal bucket with the residual viscous waste is 100: 1;
then, the obtained mixed waste is sent into a waste liquid storage tank 13 through a waste liquid absorption valve group I17, and a waste metal barrel 112 with residual viscous waste removed is obtained;
the liquid waste and/or mixed waste collected in the waste liquid storage tank 13 is mixed and then directly entrusted to an external enterprise with hazardous waste operation, disposal, approval and qualification for treatment;
s4, conveying the waste metal barrel 111 without the liquid waste or the waste metal barrel 112 without the viscous waste to a cap pulling machine 16 through a conveyor belt to perform flanging, cap pulling and burr treatment of 0.8mm on the barrel body to obtain the cap-pulled waste metal barrel 111 or waste metal barrel 112;
s5, heating the inner wall of the waste metal barrel 111 or the waste metal barrel 112 after cover pulling by the heater 211 in the heating and polishing device 21 for 30S at 350 ℃;
in the working process of the warming and polishing device 21, one heating and one scrubbing and polishing are performed as a group, and 20 groups are circulated, which is otherwise the same as in S5 of example 1;
the shot blasting machine 22 controls the shot blasting speed of the shot blasting machine to be 120m/s, throws stainless steel balls or iron balls with the diameter of 0.1mm, and the processing time is 25-30 s;
s6, except that the water pressure is 0.3Mpa when the flushing device I32 flushes and 2.5Mpa when the flushing device II35 flushes, the method is the same as S6 of the embodiment 2, and finally the reusable metal barrel is obtained.
The recycling rate of the waste metal barrel is 95 percent after the waste metal barrel is recycled by the recycling and reprocessing system of the waste metal barrel.
Example 3
A recycling system for waste metal barrels, which is the same as that in embodiment 2.
The treatment method for recycling the waste metal barrel by using the recycling treatment system of the waste metal barrel specifically comprises the following steps:
s1, same as S1 of example 2;
s2, same as S2 of example 1;
s3, dissolving the viscous waste in the waste metal bucket 112 with the viscous waste by using the liquid waste obtained by mixing different liquid wastes in the waste metal bucket 111 with the residual liquid wastes, to obtain the waste metal bucket 111 with the liquid waste removed and the waste metal bucket 112 with the viscous waste removed, which are as follows:
firstly, sending the liquid waste in the solvent-based waste metal barrel 111 with the residual liquid waste into a waste liquid storage tank 13 through a waste liquid absorption valve group I12 to obtain the waste metal barrel 111 with the liquid waste removed;
then, liquid waste obtained by uniformly mixing liquid waste collected from different waste metal barrels 111 with residual liquid waste in the waste liquid storage tank 13 is sent to the waste metal barrel 112 with residual viscous waste through a waste liquid discharge valve group II14, and then is turned and swung through the waste metal barrel 112 by controlling the frequency of the turning and swinging machine 15 to be 25Hz, so that the viscous waste is mixed and dissolved sufficiently by the liquid waste to obtain mixed waste;
the liquid waste in the above-mentioned waste liquid storage tank and the quantity proportion of the viscous waste in the waste metal bucket that remains viscous waste calculate according to the volume ratio, liquid waste in the waste liquid storage tank promptly: the viscous waste in the waste metal bucket with the residual viscous waste is 50: 1;
then, the obtained mixed waste is sent into a waste liquid storage tank 13 through a waste liquid absorption valve group I17, and a waste metal barrel 112 with viscous waste removed is obtained;
the liquid waste and/or mixed waste collected in the waste liquid storage tank 13 is mixed and then directly entrusted to an external enterprise with hazardous waste operation, disposal, approval and qualification for treatment;
s4, conveying the waste metal barrel 111 without the liquid waste or the waste metal barrel 112 without the viscous waste to a cap pulling machine 16 through a conveyor belt to perform flanging, cap pulling and 1.2mm burr cutting on a barrel body to obtain the cap-pulled waste metal barrel 111 or waste metal barrel 112;
s5, heating the inner wall of the waste metal barrel 111 or the waste metal barrel 112 after cover pulling by the heater 211 in the heating and polishing device 21 for 300S at 220 ℃;
in the working process of the heating and polishing device 21, one heating and one scrubbing and polishing are performed as a group, and 10 groups are circulated;
the shot blasting machine 22 controls the shot blasting speed of the shot blasting machine to be 80m/s, throws stainless steel balls or iron balls with the diameter of 0.5mm, and the processing time is 25-30 s;
s6, the same procedure as in S6 of example 2 was repeated except that the water pressure was 0.25Mpa when the flushing device I32 was used for flushing and 5Mpa when the flushing device II35 was used for flushing, thereby obtaining a reusable metal bucket.
The recycling rate of the waste metal barrel is 95 percent after the waste metal barrel is recycled by the recycling and reprocessing system of the waste metal barrel.
To sum up, the whole recovery reprocessing process of this application does not have the high temperature process, has overcome the brittle problem of high temperature annealing staving, can not have the dioxin production simultaneously, and pretreatment systems adopts turn-ups, pulls out the lid, cuts deckle edge simultaneously, can reduce the reduction of retrieving back staving effective volume, and the recovery reuse rate of old and useless metal bucket reaches 95%, and whole recovery process does not have the emission of waste gas, waste water, waste residue, and is friendly to the environment, accords with the theory of environmental protection production.
The above description is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above embodiments, and all technical solutions belonging to the idea of the present application belong to the protection scope of the present application. It should be noted that several improvements and modifications to the present application without departing from the principles of the present application will occur to those skilled in the art, and such improvements and modifications should also be considered within the scope of the present application.
Claims (10)
1. A recycling treatment system for waste metal barrels comprises a pretreatment system, a drying and polishing system, a post-treatment system and a purification treatment system, wherein the waste metal barrels are waste metal barrels with residual liquid waste materials and waste metal barrels with residual viscous waste materials;
the pretreatment system comprises a waste liquid absorption valve group I, a waste liquid storage tank, a waste liquid discharge valve group II, a turnover swing machine and a cover pulling machine;
the top of the waste liquid storage tank is provided with a feed liquid inlet and an exhaust port, and the bottom of the waste liquid storage tank is provided with a feed liquid discharge port;
an inlet of the waste liquid absorption valve group I is inserted into a waste metal barrel with residual liquid waste or a waste metal barrel with residual viscous waste, and an outlet of the waste liquid absorption valve group I is connected with a feed liquid inlet of a waste liquid storage tank;
a feed liquid discharge port of the waste liquid storage tank is connected with an inlet of a waste liquid discharge valve group II, and an outlet of the waste liquid discharge valve group II is inserted into a waste metal barrel with viscous waste materials;
the overturning swing machine is used for overturning and swinging the waste metal barrel with the residual viscous waste;
the cover pulling machine is used for sequentially carrying out flanging, cover pulling and barrel body burr cutting on the waste metal barrel from which the residual liquid waste or viscous waste is removed;
the drying and polishing system is used for polishing the waste metal barrel treated by the pretreatment system, and comprises heating and polishing equipment and a shot blasting machine;
the heating and polishing equipment is used for drying, polishing and removing residual waste in the waste metal barrel treated by the pretreatment system;
the shot blasting machine is used for polishing and paint removing treatment on the outer wall of the waste metal barrel treated by the heating and polishing equipment and performing shot blasting, polishing and cleaning on residues on the inner wall;
the post-processing system is used for sequentially carrying out polishing, washing, reshaping, seaming, rust-proof treatment, re-washing, air-drying and cover-closing treatment on the waste metal barrel treated by the drying and grinding system, and sequentially comprises polishing and grinding equipment, washing equipment I, reshaping equipment, seaming equipment, rust-proof treatment equipment, washing equipment II, air-drying equipment and flanging and cover-closing equipment;
the polishing and grinding equipment is used for polishing and grinding the inner wall of the waste metal barrel after shot blasting until the finish degree in the barrel is uniform;
the flushing equipment I is used for flushing the inner wall of the waste metal barrel during polishing and grinding;
the shaping equipment comprises an upper roller and a lower roller, and after the upper roller and the lower roller are attached to the inner wall and the outer wall of the waste metal barrel, the shape of the waste metal barrel treated by the polishing and grinding system is corrected through the rotation of the upper roller;
the seaming equipment comprises an upper seaming wheel and a lower seaming wheel, wherein the upper seaming wheel and the lower seaming wheel are used for tightly pressing the waste metal barrel subjected to the rust prevention treatment, and the bottom seaming of the barrel is realized through the rotation of the waste metal barrel;
the flushing equipment II is used for carrying out high-pressure water flushing on residual waste extruded from the barrel bottom seam of the waste metal barrel after barrel bottom joint closing treatment;
the anti-rust treatment equipment is used for carrying out anti-rust treatment on the inner wall of the waste metal barrel washed by the washing equipment II;
the air drying equipment is used for carrying out air drying treatment on the waste metal barrel treated by the anti-rust treatment equipment until all residual water and anti-rust liquid in the waste metal barrel are volatilized and removed;
the flanging and cover closing machine is used for flanging, flattening and curling the barrel body of the waste metal barrel subjected to air drying treatment and a new barrel cover or a recyclable old barrel cover to realize the closing of the barrel body and the barrel cover;
the purification treatment system consists of a degassing treatment device I, a degassing treatment device II, a dust removal treatment device I and a dust removal treatment device II;
the dust removal processing equipment I consists of a cyclone filter I and a bag-type dust remover I, the dust removal processing equipment II consists of a cyclone filter II and a bag-type dust remover II, the degassing processing equipment I is an activated carbon adsorption filter I, and the degassing processing equipment II is an activated carbon adsorption filter II;
the drying and polishing equipment and an exhaust port pipeline of the shot blasting machine are respectively combined through a valve IV and a valve V, and the combined pipeline directly enters the atmosphere after sequentially passing through a cyclone filter I, a bag-type dust collector I and an active carbon adsorption filter II;
an exhaust port of the polishing and grinding equipment directly enters the atmosphere after sequentially passing through a valve VI, a cyclone filter II and a bag-type dust collector II;
and an exhaust port of the waste liquid storage tank directly enters the atmosphere after passing through a valve III and an activated carbon adsorption filter I.
2. The recycling treatment system of waste metal barrels in claim 1, wherein the waste liquid absorption valve set I in the pretreatment system comprises a valve I, a liquid absorption pump I, a short hose I with two ends movably connected and a hard short pipe I, one end of the short hose I with two ends movably connected is connected with one end of the hard short pipe I, the other end of the short hose I is connected with the inlet of the liquid absorption pump I through the valve I, the outlet of the liquid absorption pump I is connected with the inlet pipeline of the waste liquid storage tank through a pipeline, and the liquid absorption pump I is a diaphragm pump, a vacuum pump, a slurry pump, a hose pump, a rotor pump or a screw pump.
3. The recycling system of waste metal barrels as claimed in claim 2, wherein the waste liquid discharge valve set II in the pre-treatment system comprises a valve II, a short hose II with two ends movably connected, and a hard short pipe II, wherein the inlet of the valve II is connected with the outlet at the bottom of the waste liquid storage tank, the outlet of the valve II is connected with one end of the short hose II with two ends movably connected, the other end of the short hose II with two ends movably connected is connected with one end of the hard short pipe II, and the other end of the hard short pipe II is inserted into the waste metal barrel with viscous waste.
4. The recycling treatment system of waste metal barrels of claim 3, wherein the pretreatment system further comprises a waste liquid absorption valve set III, the waste liquid absorption valve set III comprises a valve III, a liquid absorption pump II, a short hose III with two ends movably connected and a hard short pipe III, one end of the short hose III with two ends movably connected is connected with one end of the hard short pipe III, the other end of the short hose III is connected with the inlet of the liquid absorption pump II through the valve III, the outlet of the liquid absorption pump II is combined with the outlet pipeline of the liquid absorption pump I in the waste liquid absorption valve set I through a pipeline and then is connected with the inlet pipeline of the waste liquid storage tank;
the other end of the hard short pipe III is inserted into a waste metal barrel with residual viscous waste;
the liquid suction pump II is a diaphragm pump, a vacuum pump, a slurry pump, a hose pump, a rotor pump or a screw pump.
5. A method for recycling the waste metal bucket by using the recycling system of the waste metal bucket as claimed in claim 1, which is characterized by comprising the following steps:
s1, classifying the waste metal barrels into waste metal barrels with residual liquid waste and waste metal barrels with residual viscous waste;
s2, opening the purification treatment system to enable the purification treatment system to be in a working state;
s3, dissolving viscous waste in the waste metal bucket with the residual viscous waste by using different liquid wastes in the waste metal bucket with the residual liquid wastes to obtain the waste metal bucket with the liquid wastes removed and the waste metal bucket with the viscous wastes removed, which are as follows:
firstly, respectively sending liquid waste materials in different waste metal barrels with the residual liquid waste materials into a waste liquid storage tank through a waste liquid absorption valve group I to obtain the waste metal barrels with the liquid waste materials removed;
then, liquid waste which is collected from a waste liquid storage tank and is formed by mixing different liquid waste in waste metal barrels with residual liquid waste is sent into the waste metal barrels with residual viscous waste through a waste liquid discharge valve group II, and then sent into an overturning swing machine, and overturning swing is carried out by controlling the overturning swing machine so as to realize that the liquid waste is mixed and dissolved in the viscous waste fully, and mixed waste is obtained;
the liquid waste in the above-mentioned waste liquid storage tank and the quantity proportion of the viscous waste in the waste metal bucket that remains viscous waste calculate according to the volume ratio, liquid waste in the waste liquid storage tank promptly: the viscous waste in the waste metal bucket with the residual viscous waste is 1-100: 1;
then, the mixed waste is sent into a waste liquid storage tank through a waste liquid absorption valve group I, and a waste metal barrel from which viscous waste is removed is obtained;
s4, conveying the waste metal barrel without the liquid waste or the viscous waste to a cover pulling machine through a conveyor belt to perform flanging, cover pulling and burr cutting treatment to obtain the waste metal barrel after cover pulling;
s5, conveying the waste metal barrel after the cover is pulled out to a drying and polishing system, drying and polishing the inner wall of the waste metal barrel after the cover is pulled out, and polishing and paint removing treatment of the outer wall of the waste metal barrel after the cover is pulled out, wherein the method comprises the following specific steps:
firstly, the residual waste materials on the inner wall of the waste metal barrel after the cover is pulled out are scrubbed, polished and removed by adopting heating polishing equipment for the first time:
firstly, heating the inner wall of the waste metal barrel after the cap is pulled out by a heater in heating and polishing equipment, then, polishing residual materials crusted in the barrel by rotating the waste metal barrel in the reverse direction of the waste metal barrel after the cap is pulled out by a steel wire brush group which can rotate in different angles and different directions in the heating and polishing equipment, and discharging the dust gas formed by polishing into the atmosphere after the dust gas is sequentially treated by dust removal treatment equipment I and degassing treatment equipment II of a purification system;
secondly, performing secondary polishing, grinding and clearing on the residual waste on the inner wall of the waste metal barrel treated by the drying and grinding equipment by using a shot blasting machine, and performing polishing and paint removing treatment on the outer wall;
s6, conveying the dried and polished waste metal barrel to a post-treatment system, sequentially treating the waste metal barrel by polishing and polishing equipment, flushing equipment I, shaping equipment, seaming equipment, flushing equipment II, anti-rust treatment equipment, air drying equipment and flanging and cover closing equipment, and finally obtaining a reusable metal barrel, wherein the method comprises the following specific steps:
firstly, polishing and removing residual waste on the inner wall of the waste metal barrel after the cover is pulled out for the third time by polishing and grinding equipment until the finish degree of the inner wall of the waste metal barrel is consistent;
in the polishing and grinding process, washing by using washing equipment I, and completely recycling the washed water after filtering to remove residues;
then, reshaping the waste metal barrel which is flushed clean by the flushing device I by using reshaping equipment, wherein in the reshaping process, an upper roller and a lower roller of the reshaping equipment are attached to the inner wall and the outer wall of the waste metal barrel after the cap is pulled out, and the shape of the waste metal barrel after the cap is pulled out is corrected by rotating the upper roller;
secondly, performing barrel bottom joint closing on the waste metal barrel with the corrected external shape by using a joint closing machine, wherein in the barrel bottom joint closing process, the waste metal barrel subjected to rust prevention treatment is pressed tightly by using an upper joint closing wheel and a lower joint closing wheel of the joint closing machine, and barrel bottom joint closing is realized by rotating the waste metal barrel, so that barrel bottom edge shaping is realized;
then, flushing residual materials in the barrel bottom seam of the waste metal barrel after the barrel bottom edge is shaped by adopting flushing equipment II, and filtering waste water generated after flushing to remove the residual materials for recycling;
then, performing rust prevention treatment on the interior of the waste metal barrel washed clean by the washing equipment II by adopting rust prevention treatment equipment;
then, air-drying the waste metal barrel subjected to high-pressure water washing and rust prevention treatment by adopting air-drying equipment until all residual water and rust prevention liquid in the waste metal barrel are volatilized;
and finally, a flanging and cover closing machine is adopted to perform cover closing treatment on the air-dried waste metal barrel body and a new barrel cover or a recyclable old barrel cover through flanging, flattening and curling, and finally the recyclable metal barrel is obtained.
6. The method of claim 5, wherein in step S3, the used metal can is flanged and capped by a cap-pulling machine, and then the can body is trimmed to 0.8-1.2 mm.
7. The method as claimed in claim 6, wherein in S5, when the heater of the heating and polishing device is used to heat the inner wall of the waste metal barrel after the cover is removed, the temperature is controlled to be 100-350 ℃ and kept for 30-600S.
8. The method of claim 7, wherein in step S5, the operation of the heater and the steel wire brush set rotating in different angles and different directions in the heating and polishing device is heating once, brushing and polishing once in one set, and circulating for 2-20 sets.
9. The method for recycling waste metal barrels through the recycling system of waste metal barrels as claimed in claim 8, wherein in S5, in the shot blasting process of the shot blasting machine, the shot blasting speed of the shot blasting machine is controlled to be 30-120m/S, stainless steel balls or iron balls with the diameter of 0.1-1mm are thrown, and the processing time is controlled to be 25-30S.
10. The method for recycling waste metal buckets according to claim 9, wherein in S6, the effluent pressure of the flushing device I is 0.2 to 0.3Mpa, and the effluent pressure of the flushing device II is 0.5 to 5.0 Mpa.
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| CN202011636694.XA CN112845521A (en) | 2020-12-31 | 2020-12-31 | Recycling and reusing treatment system for waste metal barrels and application |
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| CN202011636694.XA CN112845521A (en) | 2020-12-31 | 2020-12-31 | Recycling and reusing treatment system for waste metal barrels and application |
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