CN114713596A - Production method for co-processing of construction waste and mine waste rock - Google Patents
Production method for co-processing of construction waste and mine waste rock Download PDFInfo
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- CN114713596A CN114713596A CN202210381207.2A CN202210381207A CN114713596A CN 114713596 A CN114713596 A CN 114713596A CN 202210381207 A CN202210381207 A CN 202210381207A CN 114713596 A CN114713596 A CN 114713596A
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a production method for cooperatively disposing construction waste and mine waste rocks, which belongs to the technical field of material processing and construction waste disposal, and comprises the steps of transporting mixed construction waste to a factory raw material shed, pre-sorting the mixed construction waste in the raw material shed, and transporting the mine waste rocks to a field through wagon balance metering steam; the mine waste rocks and the construction waste after pre-sorting are conveyed into a unloading hopper through a loader, a feeder is adopted for uniform feeding, the raw materials are divided into upper rod materials and lower rod materials through the feeder, the particle size of the upper rod materials is larger than 100mm, and the particle size of the lower rod materials ranges from 0mm to 100 mm; conveying the bar lower material to a soil removal sieve by using a conveyor for sieving so as to sieve out undersize and oversize, wherein the undersize comprises dregs, and the oversize comprises small building garbage and ores; the undersize ranged in size from 0mm to 10 mm. The invention can improve the utilization efficiency of renewable materials and energy sources and is beneficial to environmental protection.
Description
Technical Field
The invention belongs to the technical field of material processing and construction waste disposal, and particularly relates to a production method for cooperatively disposing construction waste and mine waste rocks.
Background
With the acceleration of urbanization, the total amount of construction waste and mine waste rock is increasing. The construction waste refers to residue, waste soil, waste material, sludge and other wastes generated in the process of constructing, laying or dismantling and repairing various buildings, structures, pipe networks and the like by construction and construction units or individuals. Mine spoil refers to mined surrounding rock and included rock which do not contain ore. In open stopes, the stripped casing, surrounding rocks and gangue, which do not contain industrial value, are commonly referred to as waste rock.
At present, in the existing material processing and construction waste disposal technology, a large amount of unprocessed construction waste and mine waste rocks are generally transported to the suburbs or villages and are stacked or buried in the open air by construction units, a large amount of land charge for collection, garbage clearing and transportation charge and the like are consumed, a large amount of land is occupied, huge environmental problems are caused, the sustainable development of economy and environment is deviated, the utilization rate of renewable resources is low, the pollution of the construction waste and the mine waste rocks to the environment cannot be reduced, and the ecological protection and the economic development promotion are not facilitated.
As described above, the conventional material processing and construction waste disposal techniques have a problem that it is difficult to improve the utilization efficiency of recycled materials and energy, and thus they are not favorable for environmental protection.
Disclosure of Invention
The invention aims to solve the technical problems that the utilization efficiency of renewable materials and energy sources is difficult to improve and the environmental protection is not facilitated.
In order to solve the technical problem, the invention provides a production method for the cooperative disposal of construction waste and mine waste rock, which comprises the following steps: transporting the mixed construction waste to a raw material piling shed in a factory area, pre-sorting the mixed construction waste in the raw material piling shed, and transporting mine waste rocks into a field through wagon balance metering steam; the mine waste rocks and the construction waste after pre-sorting are conveyed into a unloading hopper through a loader, a feeder is adopted for uniform feeding, the raw materials are divided into upper rod materials and lower rod materials through the feeder, the particle size of the upper rod materials is larger than 100mm, and the particle size of the lower rod materials ranges from 0mm to 100 mm; conveying the bar lower material to a soil removal sieve by using a conveyor for sieving so as to sieve out undersize and oversize, wherein the undersize comprises dregs, and the oversize comprises small building garbage and ores; the particle size range of the undersize is 0mm to 10mm, and the particle size range of the oversize is 10mm to 100 mm; uniformly blanking the material on the bar to a jaw crusher for primary crushing, wherein the particle size of the material after primary crushing is less than 300 mm; the materials after primary crushing are converged and conveyed to be recycled by an iron remover, and then the separated metals are stacked in a centralized way.
Further, the method further comprises: conveying the materials after metal separation to a sorting platform to pick up impurities for sorting and stacking so as to obtain tiles, construction waste and waste limestone for centralized treatment; the impurities comprise aluminum alloy, cables and wood.
Further, the method further comprises: putting tiles, construction waste and waste limestone into a conical crusher for secondary crushing, wherein the crushing particle size of the secondary crushing is 30 mm; and sieving the materials subjected to secondary crushing, and enabling the oversize materials to enter a buffer bin and uniformly feed the oversize materials to a three-stage cone crusher for tertiary crushing through a constant feeder below the bin.
Further, the method further comprises: and (4) performing primary screening on the materials subjected to secondary crushing and tertiary crushing, and returning the materials with the particle size larger than 31.5mm after screening to the third-stage crushing.
Further, the primary screening is set to be three layers of screens, and the apertures of the three layers of screens are 5mm, 10mm and 31.5mm respectively.
Further, the method further comprises: and (3) separating light materials of the semi-finished product of the construction waste with the particle size range of 10mm to 31.5mm after primary screening by using a light material separator, and transporting the semi-finished product of the construction waste to a recycled aggregate finished product warehouse by using a belt conveyor.
Further, the method further comprises: and (4) passing the material with the particle size range of 5mm to 31.5mm after the primary screening through secondary screening of a finished sand making building.
Further, the secondary screening is arranged into three layers of screens, the apertures of the three layers of screens are respectively 5mm, 10mm and 20mm, so as to screen the primary aggregates with the aperture ranging from 5mm to 10mm, 10mm to 20mm and 20mm to 31.5 mm.
Further, the method further comprises: selecting powder from the material with the particle size range of 0mm to 5mm after secondary screening by a powder selecting machine, and then making sand in a sand making buffer bin; and the sand making buffer bin uniformly feeds the sand to two vertical shaft impact crushers through a constant feeder below the bin to perform sand making and shaping.
Further, the method further comprises: and lifting the shaped materials to two environment-friendly sieves through a lifter, recycling materials with the particle size larger than 5mm to a sand recycling machine, recycling materials with the particle size ranging from 3mm to 5mm to the sand recycling machine, or sorting the materials with the particle size ranging from 3mm to 5mm and the materials with the particle size ranging from 0mm to 3mm in a powder concentrator, and then conveying the sorted materials to a finished product warehouse for storage.
Has the advantages that:
the invention provides a production method for cooperatively disposing construction waste and mine waste rocks, which is characterized in that mixed construction waste is transported to a factory raw material shed, the mixed construction waste is pre-sorted in the raw material shed, and the mine waste rocks are transported to a field through wagon balance metering steam; the mine waste rocks and the construction waste after pre-sorting are conveyed into a unloading hopper through a loader, a feeder is adopted for uniform feeding, the raw materials are divided into upper rod materials and lower rod materials through the feeder, the particle size of the upper rod materials is larger than 100mm, and the particle size of the lower rod materials ranges from 0mm to 100 mm; conveying the bar lower material to a soil removal sieve by using a conveyor for sieving so as to sieve out undersize and oversize, wherein the undersize comprises dregs, and the oversize comprises small building garbage and ores; the particle size range of the undersize is 0mm to 10mm, and the particle size range of the oversize is 10mm to 100 mm; uniformly blanking the material on the bar to a jaw crusher for primary crushing, wherein the particle size of the material after primary crushing is less than 300 mm; the materials after primary crushing are converged and conveyed, and after iron metal is recovered by an iron remover, the separated metal is stacked in a centralized way. So to building rubbish and mine barren rock subtract quantization, innoxious and resourceful treatment, to recoverable thing such as iron class metal recycle, the material after the separation metal can supply secondary crushing, cubic breakage, one-level screening and second grade screening, produces the regeneration aggregate, powder and the dregs of a river of different specifications, realizes building rubbish's comprehensive utilization and resourceful application, then can improve the utilization efficiency of renewable materials and energy, is favorable to environmental protection. Thereby achieving the technical effects of improving the utilization efficiency of the renewable materials and energy sources and being beneficial to environmental protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a first flow chart of a production method for co-disposal of construction waste and mine waste rock according to an embodiment of the present invention;
fig. 2 is a second flowchart of a production method for the cooperative disposal of construction waste and mine waste rock according to an embodiment of the present invention.
Detailed Description
The invention discloses a production method for cooperatively disposing construction waste and mine waste rocks, which is characterized in that mixed construction waste is transported to a factory raw material shed, the mixed construction waste is pre-sorted in the raw material shed, and the mine waste rocks are transported to a field through wagon balance metering steam; the mine waste rocks and the construction waste after pre-sorting are conveyed into a unloading hopper through a loader, a feeder is adopted for uniform feeding, the raw materials are divided into upper rod materials and lower rod materials through the feeder, the particle size of the upper rod materials is larger than 100mm, and the particle size of the lower rod materials ranges from 0mm to 100 mm; conveying the bar lower material to a soil removal sieve by using a conveyor for sieving so as to sieve out undersize and oversize, wherein the undersize comprises muck, and the oversize comprises small building garbage and ore; the particle size range of the undersize is 0mm to 10mm, and the particle size range of the oversize is 10mm to 100 mm; uniformly blanking the material on the bar to a jaw crusher for primary crushing, wherein the particle size of the material after primary crushing is less than 300 mm; the materials after primary crushing are converged and conveyed, and after iron metal is recovered by an iron remover, the separated metal is stacked in a centralized way. So to building rubbish and mine barren rock subtract quantization, innoxious and resourceful treatment, to recoverable thing such as iron class metal recycle, the material after the separation metal can supply secondary crushing, cubic breakage, one-level screening and second grade screening, produces the regeneration aggregate, powder and the dregs of a river of different specifications, realizes building rubbish's comprehensive utilization and resourceful application, then can improve the utilization efficiency of renewable materials and energy, is favorable to environmental protection. Thereby achieving the technical effects of improving the utilization efficiency of the renewable materials and energy sources and being beneficial to environmental protection.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention; the "and/or" keyword referred to in this embodiment represents sum or two cases, in other words, a and/or B mentioned in the embodiment of the present invention represents two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, which represents: only A does not include B; only B does not include A; including A and B.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments. Spatially relative terms, such as "below," "above," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "lower" would then be oriented "upper" other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Also, in embodiments of the invention where an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.
Example one
Referring to fig. 1 and fig. 2, fig. 1 is a first flowchart of a production method for the cooperative disposal of construction waste and mine waste rock according to an embodiment of the present invention, and fig. 2 is a second flowchart of the production method for the cooperative disposal of construction waste and mine waste rock according to an embodiment of the present invention. The embodiment of the invention provides a production method for the cooperative disposal of construction waste and mine waste rocks, which comprises the following steps:
s100, transporting the mixed construction waste to a factory raw material shed, pre-sorting the mixed construction waste in the raw material shed, and transporting mine waste rocks to a field through wagon balance metering steam;
specifically, the mixed construction waste (which can comprise wastes such as concrete blocks, bricks and tiles) can be transported to a factory raw material piling shed from a source or a government designated place generated by the construction waste by adopting an automobile, the construction waste transported to a disposal place in the raw material piling shed is quickly pre-sorted according to different components (such as concrete blocks, bricks and tiles) of the construction waste, and the mine waste rocks are input into a field through weighbridge metering steam.
S200, conveying mine waste rocks and pre-sorted construction wastes into a unloading hopper through a loader, uniformly feeding by using a feeder, dividing raw materials into an upper rod material and a lower rod material through the feeder, wherein the particle size of the upper rod material is larger than 100mm, and the particle size of the lower rod material is 0-100 mm;
specifically, after obtaining the pre-sorted construction waste and mine waste rock in step S100, the mine waste rock and the pre-sorted construction waste (the particle size of the pre-sorted construction waste is less than or equal to 600mm) may be fed into the unloading hopper by the loader, and are uniformly fed by the vibrating feeder located at the lower part of the hopper, the feeder is in a bar type, the gap between the bars is 100mm, and the raw material may be divided into two parts by the feeder: the particle size of the material on the rod is larger than 100mm, and the particle size refers to the diameter value of the particles. The particle size range of the materials under the bars is 0mm to 100mm, and if the particle size of the materials under the bars is R1, R1 is more than or equal to 0mm and less than or equal to 100 mm.
Step S300, conveying the bar lower material to a soil removal sieve by using a conveyor for sieving so as to sieve undersize and oversize, wherein the undersize comprises dregs, and the oversize comprises small building garbage and ore; the particle size range of the undersize is 0mm to 10mm, and the particle size range of the oversize is 10mm to 100 mm;
specifically, after the bar bottom material is obtained in step S200, the bar bottom material may be conveyed to a soil removing sieve by a conveyor for sieving, the sieved material is residue soil, and the sieved material may be conveyed to a residue soil bin. The undersize may range from 0mm to 10mm, provided that the undersize is R2, 0mm R2 mm 10 mm. The oversize can comprise small pieces of construction waste and ore, and the particle size of the oversize can be in the range of 10mm to 100mm, and assuming that the particle size of the oversize is R3, 10mm ≦ R3 ≦ 100 mm.
Step S400, uniformly blanking materials on the bars to a jaw crusher for primary crushing, wherein the particle size of the materials after primary crushing is less than 300 mm;
specifically, after the material on the bar is obtained in step S300, the material on the bar may be uniformly dropped into a jaw crusher for crushing, and the particle size of the crushed material is less than 300 mm.
And S500, converging and conveying the materials subjected to primary crushing, recovering iron metal through an iron remover, and then stacking the separated metal in a centralized manner.
Specifically, after the materials after primary crushing are obtained in the steps S100, S200, S300 and S400, oversize products of the crushed materials can be conveyed together, ferrous metals can be recovered through an iron remover, and the separated metals can be stacked in a centralized manner, so that construction waste and mine waste rocks are subjected to reduction, harmlessness and recycling, recoverable products such as ferrous metals can be recycled, and the separated metals can be sold in a centralized manner after the separated metals are stacked in a certain amount, so that efficient comprehensive utilization and resource utilization of the construction waste can be realized, and environmental protection is facilitated.
The production method for the cooperative disposal of the construction waste and the mine waste rock provided by the embodiment of the invention can further comprise the following steps:
s600, conveying the metal-separated materials to a sorting platform to pick up sundries for sorting and stacking so as to obtain tiles, construction waste and waste limestone for centralized treatment; the impurities comprise aluminum alloy, cables and wood.
Step S610, feeding bricks and tiles, construction waste and waste limestone into a conical crusher for secondary crushing, wherein the crushing grain size of the secondary crushing is 30 mm; and sieving the materials subjected to secondary crushing, and enabling the oversize materials to enter a buffer bin and uniformly feed the oversize materials to a three-stage cone crusher for tertiary crushing through a constant feeder below the bin.
And S620, performing primary screening on the materials subjected to secondary crushing and tertiary crushing, and returning the materials with the particle size larger than 31.5mm after screening to the third-stage crushing. Wherein, the first-stage screening is set as three layers of screens, and the apertures of the three layers of screens are respectively 5mm, 10mm and 31.5 mm.
And step S630, carrying out light material separation on the semi-finished product of the construction waste with the particle size range of 10mm to 31.5mm after primary screening by using a light material separator, and transporting the semi-finished product of the construction waste to a recycled aggregate finished product warehouse by using a belt conveyor.
And step S640, performing secondary screening on the material with the particle size range of 5mm to 31.5mm after the primary screening by using a finished sand making building. And the secondary screening is arranged into three layers of screens, and the apertures of the three layers of screens are respectively 5mm, 10mm and 20mm so as to screen the primary aggregates with the particle size ranging from 5mm to 10mm, 10mm to 20mm and 20mm to 31.5 mm.
S650, selecting powder of the material with the particle size range of 0mm to 5mm after secondary screening by a powder selecting machine, and then making sand in a sand making buffer bin; and the sand making buffer bin uniformly feeds the sand to two vertical shaft impact crushers through a constant feeder below the bin to perform sand making and shaping.
And step S660, lifting the shaped materials to two environment-friendly sieves through a lifter, recycling the materials with the particle size larger than 5mm to a sand making machine, recycling the materials with the particle size ranging from 3mm to 5mm to the sand making machine, or sorting the materials with the particle size ranging from 3mm to 5mm and the materials with the particle size ranging from 0mm to 3mm in a powder sorting machine, and then conveying the sorted materials to a finished product warehouse for storage.
Specifically, after the waste materials with the iron metals recovered are obtained through the steps S100, S200, S300, S400 and S100, the waste materials with the metals recovered are conveyed to a manual sorting platform, and impurities such as aluminum alloys, cables, wood and the like in the waste materials can be picked up, sorted and stacked manually for centralized processing. Then, the bricks and tiles, the construction waste and the waste limestone can be conveyed into the conical crusher for secondary crushing (the crushing particle size of the secondary crushing can be set to be 30mm, namely the particle size of the material particles after the secondary crushing is 30 mm). After the material after the secondary crushing is sieved, the oversize material enters a buffer bin and is uniformly fed to a three-stage conical crusher through a constant feeder below the bin for tertiary crushing. The materials after the secondary crushing and the tertiary crushing can be subjected to primary screening by a vibrating screen, wherein, the first-level screening can be provided with 3 layers of screens, the 3 layers of screens can be respectively a first layer of screen, a second layer of screen and a third layer of screen from inside to outside, a plurality of circular screen holes are arranged in the first layer of screen, the second layer of screen and the third layer of screen, the diameter of the screen hole of the first layer of screen can be 5mm, the diameter of the screen hole of the second layer of screen can be 10mm, the diameter of the screen hole of the third layer of screen can be 31.5mm, therefore, materials with the particle size larger than 31.5mm can be screened out, the construction waste semi-finished product with the particle size ranging from 10mm to 31.5mm, the materials with the particle size ranging from 5mm to 31.5mm and the construction waste aggregate with the particle size ranging from 0mm to 10mm, and the materials with the particle size larger than 31.5mm can be conveyed to a three-stage cone crusher to be crushed for three times. The construction waste semi-finished products with the particle size range of 10mm to 31.5mm after primary screening are separated from light materials by a light material separator and then are conveyed to a recycled aggregate finished product warehouse by a belt conveyor, and the construction waste aggregate with the particle size range of 0mm to 10mm is connected to the recycled aggregate finished product warehouse. Or the materials with the size of 5mm to 31.5mm after the primary screening can pass through a vibrating screen for secondary screening of finished sand making buildings,
in addition, 3 layers of screens can be arranged in the secondary screening, the 3 layers of screens can be respectively a first layer screen, a second layer screen and a third layer screen from inside to outside, the diameter of the screen hole of the first layer screen can be 5mm, the diameter of the screen hole of the second layer screen can be 10mm, and the diameter of the screen hole of the third layer screen can be 20mm, so that after the secondary screening, the primary aggregate with the particle size ranging from 5mm to 10mm can be screened out, the primary aggregate with the particle size ranging from 10mm to 20mm can be screened out, and the primary aggregate with the particle size ranging from 20mm to 31.5mm can be respectively conveyed to a finished product warehouse for classified storage. Or the materials with the particle size ranging from 5mm to 31.5mm after the secondary screening can be subjected to powder selection by a powder selecting machine and then enter a sand making buffer bin for sand making, wherein the particle size ranging from 0mm to 5 mm. And the sand making buffer bin uniformly feeds the sand to two vertical shaft impact crushers through a constant feeder below the bin to perform sand making and shaping. The shaped materials can be lifted to two environment-friendly sieves through a lifter, the sieved materials with the particle size of more than 5mm can be recycled to a sand making machine, the materials with the particle size of 3mm to 5mm can be recycled to the sand making machine or can be separated from the materials with the particle size of 0mm to 3mm in a powder concentrator, and then the materials are conveyed to a finished product warehouse. A stone powder bulk system can be arranged in the sand making building, and the powder stored in the round warehouse is sent to a powder bulk vehicle to leave a factory through a bulk machine by adopting concentrated dust collection. Thus the product quality is high, and the impurity content of the recycled aggregate is less than 3 percent; the original building aggregate product has the needle-sheet shape proportion of less than 10 percent, the mud content of less than 1 percent and the mud block content of less than 0.2 percent, and the quality meets the construction macadam and pebble quality standard GBT 14685-2011 and the construction sand standard GBT 14684-2011; the fineness modulus of the machine-made sand is 2.3-3.7; content of stone powder: MB value is less than or equal to 1.4 or qualified in a quick test is less than or equal to 10 percent; MB value is more than 1.4 or unqualified in rapid test is less than or equal to 3 percent; the content of mud blocks: MB value is less than or equal to 1.4 or qualified in a quick test is less than or equal to 1 percent; the MB value is more than 1.4 or the unqualified quick test is less than or equal to 1 percent, and the particle size distribution meets the national GB/T14684-2011 construction sand standard. The produced recycled aggregate resource replaces natural sandstone through the reduction, harmless and resource treatment of the construction waste, meets the requirement of reducing the resource consumption of the natural sandstone, and adopts the advanced production processes of pre-sorting, crushing and screening, metal separation, light material separation and brick-concrete separation to monitor the whole processes of receiving, inspecting, temporarily storing, treating and disposing the construction waste; after the construction waste arrives at a factory, producing concrete recycled aggregate, powder and muck with different specifications through links such as sorting, three-stage crushing, screening, classifying and the like; the muck is used as a raw material ingredient and is sent into a cement kiln for production to carry out harmless and recycling treatment; producing recycled concrete by using the recycled concrete aggregate through a concrete stirring system for engineering construction; can realize 100 percent comprehensive utilization and resource utilization of the construction waste. The method follows the concept of sustainable development and circular economy, improves the utilization efficiency of regenerated materials and energy sources through a new process, a new material and a new technology application, and comprehensively utilizes the regenerated resources to the maximum extent. The production workshop is fully sealed, materials are stored in a non-landing round warehouse in the production process, seamless lap joint of the commercial concrete mixing station and the aggregate is achieved when the commercial concrete mixing station and the aggregate are taken out of the warehouse, an automatic metering device and an unattended automatic weighing system are designed at the bottom of the warehouse, and low energy consumption and clean production in the production process are achieved. Advanced, reliable, energy-saving, environment-friendly and other high-efficiency energy-saving equipment is adopted in the aspects of environmental protection and energy conservation, and the dust emission concentration of each emission point is controlled within the range of national standard requirements.
The invention provides a production method for cooperatively disposing construction waste and mine waste rocks, which is characterized in that mixed construction waste is transported to a factory raw material shed, the mixed construction waste is pre-sorted in the raw material shed, and the mine waste rocks are transported to a field through wagon balance metering steam; the mine waste rocks and the construction waste after pre-sorting are conveyed into a unloading hopper through a loader, a feeder is adopted for uniform feeding, the raw materials are divided into upper rod materials and lower rod materials through the feeder, the particle size of the upper rod materials is larger than 100mm, and the particle size of the lower rod materials ranges from 0mm to 100 mm; conveying the bar lower material to a soil removal sieve by using a conveyor for sieving so as to sieve out undersize and oversize, wherein the undersize comprises dregs, and the oversize comprises small building garbage and ores; the particle size range of the undersize is 0mm to 10mm, and the particle size range of the oversize is 10mm to 100 mm; uniformly blanking the material on the bar to a jaw crusher for primary crushing, wherein the particle size of the material after primary crushing is less than 300 mm; the materials after primary crushing are converged and conveyed, and after iron metal is recovered by an iron remover, the separated metal is stacked in a centralized way. So to building rubbish and mine barren rock subtract quantization, innoxious and resourceful treatment, to recoverable thing such as iron class metal recycle, the material after the separation metal can supply secondary crushing, cubic breakage, one-level screening and second grade screening, produces the regeneration aggregate, powder and the dregs of a river of different specifications, realizes building rubbish's comprehensive utilization and resourceful application, then can improve the utilization efficiency of renewable materials and energy, is favorable to environmental protection. Thereby achieving the technical effects of improving the utilization efficiency of the renewable materials and energy sources and being beneficial to environmental protection.
In order to describe the production line for the cooperative disposal of the building garbage and the mine waste rock in detail, the embodiment describes the production method for the cooperative disposal of the building garbage and the mine waste rock in detail, and based on the same inventive concept, the application also provides the production line for the cooperative disposal of the building garbage and the mine waste rock in detail in the second embodiment.
Example two
The embodiment of the invention provides a production line for cooperatively disposing construction waste and mine waste rocks, which comprises a crushing mechanism, a residue soil screening mechanism, a construction waste separating mechanism, a medium-fine crushing mechanism, a brick concrete separating mechanism, an aggregate screening mechanism, a sand making and powder selecting mechanism and a storing and delivering mechanism which are sequentially connected.
The crushing mechanism may include: the device comprises a receiving hopper, a feeder, a crusher, a belt conveyor and a dust collector which are connected in sequence; the crushing mechanism may further include: the spray dust removal device is arranged on the receiving hopper; the dust collector is provided with a first dust inlet and a first dust outlet. The dregs screening mechanism includes: the vibrating screen, the belt conveyor, the bulk machine and the dust collector are connected in sequence; the muck screening mechanism is characterized in that muck separated by the vibrating screen is conveyed to a muck shed by a belt conveyor, and a bulk loader and a spray dust removal device are arranged at a discharge point. Building rubbish separating mechanism includes: the iron remover, the manual sorting room and the light material separator are connected in sequence; the construction waste separation mechanism is internally provided with an iron remover, and separated metal substances enter a temporary storage sundry room through a chute to be stored; arranging a manual sorting room, and enabling the sorted construction waste to enter a temporary storage sundry room through a chute for storage; and arranging a light material separator, and enabling the separated light materials to enter a light material packing room through a chute for storage. The medium fine crushing mechanism comprises: the device comprises a middle crusher, a fine crusher, a vibrating screen, a belt conveyor, a bucket elevator and a dust collector which are connected in sequence; the medium fine crushing mechanism comprises: the medium crusher, the fine crusher, the vibrating screen, the belt conveyor, the bucket elevator and the dust collector are distributed in a standing manner. Wherein, an iron remover is arranged in the middle fine crushing mechanism for secondary separation of metal substances; metering feeding devices are arranged before the middle fine crusher feeds; the vibrating screen is provided with four discharge ports which are respectively connected with the transfer belts of different products, each discharge port is provided with an electric flashboard valve for controlling opening and closing, and the corresponding electric flashboard valve can be opened according to the type of the required target product during production to adjust the type of the produced product; the bucket elevator is used for vertical transportation, and other auxiliary equipment such as a medium and fine crusher, a vibrating screen, a transfer belt, a dust collector and the like are concentrated in one building station to form building station type distribution, so that the floor area is saved. The brick concrete separating mechanism comprises: the device comprises a storage bin, a brick-concrete separator, a belt conveyor, a bucket elevator, a bulk machine and a dust collector which are connected in sequence; the brick-concrete separating mechanism is internally provided with a bin, the bottom of the bin is provided with a manual bar valve, and the feeding amount of the brick-concrete separator is controlled; the brick concrete separator is provided with two discharge ports which respectively correspond to the sorted waste bricks and tiles and the recycled aggregate; the separated waste bricks and tiles are stored in a storage warehouse separately, and the waste bricks and tiles are loaded and transported outside by a bulk loader arranged below the storage warehouse; and the recycled aggregate is transported to the next working section through a belt conveyor and a bucket elevator. The aggregate screening mechanism comprises: the vibrating screen, the belt conveyor, the bucket elevator and the dust collector are connected in sequence; wherein, aggregate screening mechanism well finished product shale shaker is equipped with four discharge gates, and every discharge gate can be adjusted as production needs through setting up electronic push-pull valve control, can transport the finished product storehouse through the belt feeder as the product and store, also can get into the surge bin before the system sand machine as the raw materials and go the system sand. The sand making and powder selecting mechanism comprises: the device comprises a vibrating screen, a pre-selection powder machine, a storage bin, a feeder, a sand making machine, a bucket elevator, a sand making vibrating screen, a powder selecting machine, a belt conveyor, a bucket elevator and a dust collector which are connected in sequence; the pre-selection powder machine is arranged in front of the sand making machine in the sand making and powder selecting mechanism, the buffer bin is arranged, and the buffer bin is fed at the bottom through the metering scale; products with different particle sizes, which are selected by sand making vibration screening, can be transported to a finished product warehouse for storage as products through adjustment of an electric three-way valve arranged on a chute, and can also return to a front buffer bin of a sand making machine; the dust collection wind direction of the vibrating screen and each dust collection pipeline is connected with a first dust inlet of the dust collector after passing through the pre-screening machine, so that the size of the dust collector and the fan is reduced; the sand separated by the powder separator is sent to a finished product warehouse for storage, and the separated powder is sent to a stone powder warehouse for storage and then bulk shipment through a zipper machine, a bucket elevator or an ash tank pump. The storage and shipping mechanism comprises: the warehouse, belt feeder, bulk machine, weighbridge that connect gradually. The storage and distribution of 1 kind of sand, 2 kinds of recycled aggregate and 3 kinds of primary aggregate are realized by reasonably arranging 6 steel plate storehouses and 2 concrete storehouses in the storage and delivery mechanism and arranging a double-layer belt; a transfer belt is arranged at the bottom of the warehouse and is transported to a main building of a commercial mixing and stirring station, and a bulk machine is arranged for bulk transportation; an electronic wagon balance is arranged on the ground corresponding to the bottom of the warehouse for metering; wherein the bottom of the sand silo is provided with a double-shaft stirrer for humidifying and stirring. In addition, above-mentioned dust collector all has first dust entry and a dust outlet, and above-mentioned all equipment transportation department, raise dust department all are equipped with the pipeline that gathers dust, the export of the pipeline that gathers dust all is linked together with first dust entry, first dust outlet and next process equipment intercommunication are finally deposited and are stored and shipped in the feed bin.
In actual operation, a computer control system can be adopted to provide data acquisition, parameter display, out-of-limit alarm, remote control, report printing and logic control functions, the system is suitable for mixed control of analog quantity and digital quantity, each operator station can display real-time information, and operators can operate and monitor the operation process of each subsystem of the auxiliary plant through the operator stations; the monitoring picture can display real-time data of the process variable and the state of the operating equipment, the displayed color or graph changes along with the change of the process state, and whether the point position corresponding to the analog quantity is normal or not is judged; when any station or module breaks down, the color and brightness of the corresponding state display picture are changed, the sound box sends alarm information to remind the operators and the operators of paying attention in time, and the production process adopts centralized control and adjustment to realize the digitization, integration, intellectualization, visualization and automation of the whole production process. The project building garbage disposal and aggregate and commercial concrete production line technology and equipment level tend to be the leading level in the same industry at home, and various economic and technical indexes reach the advanced level at home and abroad. The production line for the cooperative disposal of the building waste and the mine waste rock provided by the invention adopts necessary measures in the processes of the treatment of the building waste and the mine waste rock and the production of the machine-made sand and the recycled concrete, so that air, water and noise pollution can not be caused, meanwhile, the pollution of the building waste to the environment can be reduced, the living quality of people and the investment environment of government can be improved, the mine waste rock resource can be fully utilized, the high-quality recycled building material can be provided, and the natural resource can be saved. According to the cooperative disposal production line for the building garbage and the mine waste rocks, the medium-fine crushing mechanism and the sand making and powder selecting mechanism are integrally arranged in a building station manner, so that the process flow is simple, and the occupied area is small. Mine waste rock and construction waste dispose a production line of sharing, walk the bypass when disposing construction waste and pass through some special construction waste separation processing equipment, reduce the running cost.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A production method for the cooperative disposal of construction waste and mine waste rock, characterized in that the method comprises:
transporting the mixed construction waste to a raw material piling shed in a factory area, pre-sorting the mixed construction waste in the raw material piling shed, and transporting mine waste rocks into a field through wagon balance metering steam;
the mine waste rocks and the construction waste after pre-sorting are conveyed into a unloading hopper through a loader, a feeder is adopted for uniform feeding, the raw materials are divided into upper rod materials and lower rod materials through the feeder, the particle size of the upper rod materials is larger than 100mm, and the particle size of the lower rod materials ranges from 0mm to 100 mm;
conveying the bar lower material to a soil removal sieve by using a conveyor for sieving so as to sieve out undersize and oversize, wherein the undersize comprises dregs, and the oversize comprises small building garbage and ores; the particle size range of the undersize is 0mm to 10mm, and the particle size range of the oversize is 10mm to 100 mm;
uniformly blanking the material on the bar to a jaw crusher for primary crushing, wherein the particle size of the material after primary crushing is less than 300 mm;
the materials after primary crushing are converged and conveyed to be recycled by an iron remover, and then the separated metals are stacked in a centralized way.
2. A production method for the co-disposal of construction waste and mine waste rock according to claim 1, characterized in that said method further comprises:
conveying the materials after metal separation to a sorting platform to pick up impurities for sorting and stacking so as to obtain tiles, construction waste and waste limestone for centralized treatment; the impurities comprise aluminum alloy, cables and wood.
3. A production method for the co-disposal of construction waste and mine waste rock according to claim 2, characterized in that said method further comprises:
putting tiles, construction waste and waste limestone into a conical crusher for secondary crushing, wherein the crushing particle size of the secondary crushing is 30 mm; and sieving the materials subjected to secondary crushing, and enabling the oversize materials to enter a buffer bin and uniformly feed the oversize materials to a three-stage cone crusher for tertiary crushing through a constant feeder below the bin.
4. A production method for the co-disposal of construction waste and mine waste rock according to claim 3, characterized in that said method further comprises:
and (4) performing primary screening on the materials subjected to secondary crushing and tertiary crushing, and returning the materials with the particle size larger than 31.5mm after screening to the third-stage crushing.
5. A production method for the co-disposal of construction waste and mine waste rock according to claim 4, characterized in that:
the primary screening is set to be three layers of screens, and the apertures of the three layers of screens are respectively 5mm, 10mm and 31.5 mm.
6. A method of production for the co-disposal of construction waste and mine waste rock as claimed in claim 5, wherein the method further comprises:
and (3) separating light materials of the semi-finished product of the construction waste with the particle size range of 10mm to 31.5mm after primary screening by using a light material separator, and transporting the semi-finished product of the construction waste to a recycled aggregate finished product warehouse by using a belt conveyor.
7. A production method for the co-disposal of construction waste and mine spoil according to claim 6, wherein the method further comprises:
and (4) passing the material with the particle size range of 5mm to 31.5mm after the primary screening through secondary screening of a finished sand making building.
8. A production method for the co-disposal of construction waste and mine waste rock according to claim 7, characterized in that:
the secondary screening is arranged into three layers of screens, the aperture of each of the three layers of screens is 5mm, 10mm and 20mm, and the three layers of screens are used for screening the primary aggregates with the particle size ranging from 5mm to 10mm, 10mm to 20mm and 20mm to 31.5 mm.
9. A production method for the co-disposal of construction waste and mine waste rock according to claim 8, wherein said method further comprises:
selecting the material with the particle size range of 0mm to 5mm after secondary screening by a powder selecting machine, and then making sand in a sand making buffer bin; and the sand making buffer bin uniformly feeds the sand to two vertical shaft impact crushers through a constant feeder below the bin to perform sand making and shaping.
10. A production method for the co-disposal of construction waste and mine waste rock according to claim 9, characterized in that said method further comprises:
and lifting the shaped materials to two environment-friendly sieves through a lifter, recycling materials with the particle size larger than 5mm to a sand recycling machine, recycling materials with the particle size ranging from 3mm to 5mm to the sand recycling machine, or sorting the materials with the particle size ranging from 3mm to 5mm and the materials with the particle size ranging from 0mm to 3mm in a powder concentrator, and then conveying the sorted materials to a finished product warehouse for storage.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116277514A (en) * | 2023-03-21 | 2023-06-23 | 浙江益森久城环保设备有限公司 | Dry-mixed mortar production line |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838307A (en) * | 2012-08-27 | 2012-12-26 | 首钢总公司 | Method and system for treating construction waste |
| CN104671685A (en) * | 2015-02-02 | 2015-06-03 | 深圳市华威环保建材有限公司 | Production method of recycled aggregates of building wastes |
| CN109013015A (en) * | 2018-08-24 | 2018-12-18 | 临汾市华基建材科技有限公司 | Solid waste tailing and building waste comprehensively utilize workshop |
| CN109369128A (en) * | 2018-10-19 | 2019-02-22 | 户县融基建材有限责任公司 | A kind of method and its building block using building waste and mill tailings preparation building block |
| CN209968622U (en) * | 2019-04-15 | 2020-01-21 | 武汉建筑材料工业设计研究院有限公司 | Aggregate screening, storage and sand making system |
| CN112408832A (en) * | 2020-11-20 | 2021-02-26 | 江苏福翊铭环保科技有限公司 | Method for cooperatively treating construction waste by using bulk industrial solid waste |
| CN112659361A (en) * | 2020-12-17 | 2021-04-16 | 江苏日不落再生资源科技有限公司 | Dry-mixed mortar preparation method based on construction waste treatment |
-
2022
- 2022-04-12 CN CN202210381207.2A patent/CN114713596A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838307A (en) * | 2012-08-27 | 2012-12-26 | 首钢总公司 | Method and system for treating construction waste |
| CN104671685A (en) * | 2015-02-02 | 2015-06-03 | 深圳市华威环保建材有限公司 | Production method of recycled aggregates of building wastes |
| CN109013015A (en) * | 2018-08-24 | 2018-12-18 | 临汾市华基建材科技有限公司 | Solid waste tailing and building waste comprehensively utilize workshop |
| CN109369128A (en) * | 2018-10-19 | 2019-02-22 | 户县融基建材有限责任公司 | A kind of method and its building block using building waste and mill tailings preparation building block |
| CN209968622U (en) * | 2019-04-15 | 2020-01-21 | 武汉建筑材料工业设计研究院有限公司 | Aggregate screening, storage and sand making system |
| CN112408832A (en) * | 2020-11-20 | 2021-02-26 | 江苏福翊铭环保科技有限公司 | Method for cooperatively treating construction waste by using bulk industrial solid waste |
| CN112659361A (en) * | 2020-12-17 | 2021-04-16 | 江苏日不落再生资源科技有限公司 | Dry-mixed mortar preparation method based on construction waste treatment |
Non-Patent Citations (1)
| Title |
|---|
| 窦东阳、杨建国: "可持续发展的土木工程---第二届去昂过搞笑土木工程专业大学生论坛论文及创新成果集", vol. 1, 哈尔滨工业大学出版社, pages: 160 - 164 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116277514A (en) * | 2023-03-21 | 2023-06-23 | 浙江益森久城环保设备有限公司 | Dry-mixed mortar production line |
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