CN115740461A - Aluminum bar processing equipment and process method by using aluminum scraps - Google Patents
Aluminum bar processing equipment and process method by using aluminum scraps Download PDFInfo
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- CN115740461A CN115740461A CN202211439343.9A CN202211439343A CN115740461A CN 115740461 A CN115740461 A CN 115740461A CN 202211439343 A CN202211439343 A CN 202211439343A CN 115740461 A CN115740461 A CN 115740461A
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Abstract
The invention relates to the field of aluminum scrap recovery, in particular to aluminum bar processing equipment and a process method for aluminum scrap scraps, which comprise the following steps: crushing the collected waste aluminum into aluminum scraps; cleaning; drying; screening for the first time, wherein non-conductive impurities in the aluminum scraps are screened; screening for the second time, and screening iron-containing impurities in the aluminum scraps; heating and pressurizing to extrude an aluminum bar; cooling by air cooling; and cutting off the aluminum bar. The equipment and the process method for processing the aluminum bar by the aluminum scrap scraps adopt a mode of heating and extruding the aluminum scraps, change the original production processes of aluminum scrap recovery, aluminum scrap smelting and bar casting into a production process of aluminum scrap recovery crushing, impurity removal and heating extrusion, break through the inherent thinking mode of aluminum scrap recovery reprocessing in the prior art, and can effectively solve the problems of high burning loss rate, slag skimming, long time consumption, large occupied area and high labor cost caused by aluminum scrap recovery smelting adopted in the prior art.
Description
Technical Field
The invention relates to the field of aluminum scrap recovery, in particular to aluminum bar processing equipment and a process method for aluminum scrap scraps.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
A large amount of aluminum scraps, aluminum scraps and other waste aluminum are generated in the production process of machined parts of automobiles, high-speed rails, aircraft transportation vehicles, fire-fighting equipment and intelligent equipment accessories and need to be recycled.
The traditional process adopts a method of melting aluminum into aluminum liquid and then recasting the aluminum liquid, and has the following problems:
smelting is high temperature of about 700 ℃, energy consumption is large, and part of aluminum can be burnt with flame to cause 20 to 30 percent of loss, thereby causing loss of aluminum recovery.
A large amount of oxidation furnace slag generated in the melting process floats on the molten aluminum, so that the slag scraping amount is large, and the treatment is time-consuming and labor-consuming;
the aluminum liquid after being subjected to slag removal can be kept stand for a long time to cast rods or ingots, and the treatment cycle time is long.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the equipment and the process method for processing the aluminum bar by the aluminum scraps, which extrude the aluminum scraps into the aluminum bar by adopting a physical extrusion mode without smelting, aluminum combustion loss and slag skimming, aluminum liquid standing, high recovery rate, energy consumption reduction and effective processing period shortening.
The technical scheme of the invention is as follows:
one aspect of the invention provides a process method for processing an aluminum bar by using aluminum scraps, which comprises the following steps:
s1, crushing collected waste aluminum into aluminum scraps;
s2, cleaning;
s3, drying at high temperature;
s4, screening for the first time to remove non-conductive impurities in the aluminum scraps;
s5, screening for the second time, and screening out iron-containing impurities in the aluminum scraps;
s6, heating and extruding an aluminum bar;
s7, air cooling;
s8, cutting off the aluminum bar;
the crushing in the step S1 is realized by a crusher; the cleaning in the step S2 is high-pressure water cleaning; the drying in the step S3 is realized by a dryer, and the temperature range is set to be 200-250 ℃; the first screening in the step S4 is to remove non-conductive impurities such as plastics, residual dust and the like through an electrostatic separator; the second screening of the step S5 is to remove the iron-containing impurities through a magnetic separator; the step S6 is realized by adopting an extruder, the extruder comprises a material container with a cylindrical cavity and a pressure rod matched with the material container, the outside of the material container is electrically heated, the heating temperature range is set to be 400-450 ℃, the pressure rod is driven by a hydraulic cylinder to extrude the aluminum scraps in the material container, and the pressure range is 15-30 MP; s7, cooling the aluminum bar extruded in the previous step through air cooling equipment; and S8, cutting off the aluminum bar by a cutting machine.
Further, the material courage including main extrusion courage and with main extrusion courage vertically is assisted and is extruded the courage, it is connected with the feed inlet to assist the extrusion courage, main extrusion courage one end is provided with the discharge gate, the depression bar include with main first depression bar of extrusion courage complex and with assist extrusion courage complex second depression bar
Further, the dryer is connected with a bag-type dust collector.
And further, conveying the aluminum scraps subjected to the first screening in the step S4 to a magnetic separator through a belt conveyor, and conveying the aluminum scraps into an extruder for heating and pressurizing molding after the second screening in the magnetic separator is completed.
Further, the extruder heats the material container through a heating coil.
The invention also provides aluminum bar processing equipment for processing the aluminum scraps by using the waste aluminum scraps, which is processed according to the process method and comprises a crusher, a cleaning mechanism, a dryer, a bag-type dust remover, an electrostatic separator, a belt conveyor, a magnetic separator, an extruder, air cooling equipment, a cutting machine and a storage platform; rubbing crusher one side is provided with wiper mechanism, wiper mechanism keeps away from rubbing crusher one side and is provided with the drying-machine, the drying-machine is connected with the sack cleaner, the drying-machine is kept away from wiper mechanism one side and is provided with electrostatic separation machine, electrostatic separation machine keeps away from drying-machine one side and is provided with belt conveyor, belt conveyor keeps away from electrostatic separation machine one side and sets up the magnet separator, magnet separator one side sets up the extruder, discharge gate one side of extruder sets up forced air cooling equipment and cutting machine, and the aluminium bar that the cutting is good is placed on depositing the platform.
Furthermore, the extruder comprises a material container with a cylindrical cavity and a pressure rod matched with the material container, and an electric heating device for heating the material container is arranged outside the material container; the aluminum scrap extrusion device further comprises a hydraulic machine, wherein the hydraulic machine comprises a hydraulic cylinder, and the hydraulic cylinder drives a pressure rod to extrude aluminum scraps in the material container.
Further, the material courage including main extrusion courage and with main extrusion courage vertically is assisted and is extruded the courage, it is connected with the feed inlet to assist the extrusion courage, main extrusion courage one end is provided with the discharge gate, the depression bar include with main extrusion courage complex first depression bar and with assist extrusion courage complex second depression bar.
Furthermore, the point heating device is set as a heating coil, and the heating coil is sleeved on the main extrusion container.
The invention achieves the following beneficial effects:
the equipment and the process method for processing the aluminum bar by the aluminum scraps adopt a mode of heating and extruding the aluminum scraps, and change the original modes of recovering the aluminum scraps, smelting the aluminum scraps and casting the aluminum bars into a production process of recovering and crushing the aluminum scraps, removing impurities and heating and extruding the aluminum scraps.
By adopting the equipment and the process method for processing the aluminum bar by using the aluminum scraps, no aluminum liquid burning loss is generated, the recovery rate of the aluminum scraps is improved, and the material cost and the labor cost are effectively saved; due to the change of the processing technology, the aluminum bar is directly formed by the waste aluminum after impurity removal, the time is greatly shortened, and the energy consumption and the production cost are reduced; the production line type processing mode is adopted, the aluminum bar is sequentially crushed, cleaned, dried, decontaminated and heated to be extruded after the aluminum scrap is recovered, the processing efficiency is improved by times, and the productivity is greatly improved.
Drawings
FIG. 1 is a processing flow chart of the process for processing aluminum bars from aluminum scraps.
FIG. 2 is a schematic view of the equipment of the processing production line of the equipment for processing aluminum bars by using aluminum scraps.
FIG. 3 is a schematic top view of the production line equipment after aluminum scraps enter an extruder in the aluminum scrap and aluminum scrap processing equipment of the invention.
In the figure, 1, a crusher; 2. a cleaning mechanism; 3. a dryer; 4. a bag-type dust collector; 5. an electrostatic separator; 6. a belt conveyor; 7. a magnetic separator 8 and an extruder; 81. a material container; 811. a main extrusion liner; 812. auxiliary extrusion of the bladder; 813. a feed inlet; 814. a discharge port; 82. a pressure lever; 821. a first pressure lever; 822. a second compression bar; 83. a hydraulic cylinder; 84. an electric heating device; 9. air cooling equipment; 10. a cutting machine; 11. a storage platform; 12. an aluminum bar.
Detailed Description
To facilitate an understanding of the invention for those skilled in the art, a specific embodiment thereof will be described below with reference to the accompanying drawings.
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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It will be understood that when an element is referred to as being "mounted on" 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 "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly and include, for example, fixed and removable connections as well as integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, in one aspect of the present invention, a process for processing aluminum bars from aluminum scraps is provided, which comprises the following steps:
s1, crushing collected waste aluminum into aluminum scraps;
s2, cleaning;
s3, drying;
s4, screening for the first time to remove non-conductive impurities in the aluminum scraps;
s5, screening for the second time, and screening iron-containing impurities in the aluminum scraps;
s6, heating and pressurizing to extrude an aluminum bar 12;
s7, air cooling;
s8, cutting off the aluminum bar 12;
wherein, the crushing of the step S1 is realized by a crusher 1; the cleaning in the step S2 is high-pressure water cleaning; the drying in the step S3 is realized by a dryer 3, and the temperature range is set to be 200-250 ℃; the first screening in the step S4 is to remove non-conductive impurities such as plastics, residual dust and the like through an electrostatic separator 5; the second screening of the step S5 is to remove the iron-containing impurities through a magnetic separator 7; the step S6 is realized by adopting an extruder, the extruder comprises a material container 81 with a cylindrical cavity and a pressure rod 82 matched with the material container 81, the outside of the material container 81 is electrically heated, the heating temperature range is set to be 400-450 ℃, a hydraulic cylinder 83 drives the pressure rod 82 to extrude the aluminum scraps in the material container 81, and the pressure range is 15-30 MP; s7, cooling the aluminum bar 12 extruded in the previous step through air cooling equipment 9; step S8 cuts the aluminum bar 12 by the cutter 10.
The process method for processing the aluminum bar by the aluminum scraps adopts the process that the aluminum scraps are physically extruded and are directly heated at the high temperature of 400-450 ℃ in the extrusion process to form the aluminum bar 12, replaces the traditional method that the aluminum scraps are changed into liquid-state cast bars, breaks through the inherent thinking of aluminum scrap recovery, saves energy, materials and occupied space, and realizes high-speed standardized production by manpower.
The cleaning in step S2 may be performed with normal temperature water or high pressure water, the high pressure water may be 5MP, or other pressures may be selected according to actual needs, and the specific pressure value is not limited herein, in this embodiment, the cleaning mechanism 2 selects the cleaning tank.
In the present application, waste aluminum generated in the aluminum alloy machining process is recycled, so that the waste aluminum contains certain impurities, such as cutting fluid, plastics, dust, and iron chips.
And (3) high-temperature drying in the step (S3), because the temperature is set to be between 200 and 250 ℃, not only can the moisture existing in the last step of cleaning be gasified and dried, but also the cutting fluid in the aluminum scraps can be gasified. Cutting fluid can produce smog because of high temperature stoving time, and for environmental protection dust removal, drying-machine 3 is connected with sack cleaner 4, can guarantee the environment of production line like this, has reduced environmental pollution. In the traditional technology, a large amount of smoke is generated by heating the cutting fluid remained in the aluminum scraps during smelting of the aluminum scraps, and the smoke contains nitrogen oxides, sulfur dioxide and the like, so that the environment in a factory building is polluted.
And S4, screening for the first time, namely screening out non-conductive impurities in the aluminum scraps by adopting an electrostatic separator 5, and separating a mixture of metal and nonmetal.
The working principle of the electrostatic separator 5 is as follows: the sorting aim is achieved by utilizing the difference of the electrical property of the materials in the high-voltage electric field, and when the materials are brought into the high-voltage electric field acted by the corona electrode through the rotating drum barrel, the materials are acted by various electric power, centrifugal force and gravity. Due to the difference of the electrical properties of various materials, the trajectory of the materials when falling is different due to the difference of the stress states, so that the metal and nonmetal mixtures are separated.
Further, the aluminum scraps subjected to the first screening in the step S4 are conveyed to a magnetic separator 7 through a belt conveyor 6, the second screening in the step S5 is completed in the magnetic separator 7, the iron scraps mixed in the aluminum scraps are separated and recovered, and the screened aluminum scraps are conveyed to an extruder for high-temperature and high-pressure molding.
The material container 81 of the extruder comprises a main extrusion container 811 and an auxiliary extrusion container 812 vertical to the main extrusion container 811, the auxiliary extrusion container 812 is connected with a feed inlet 813, the aluminum scraps screened by the magnetic separator 7 enter from the feed inlet 813, one end of the main extrusion container 811 is provided with a discharge outlet 814, and the compression bar 82 comprises a first compression bar 82 matched with the main extrusion container 811 and a second compression bar 82 matched with the auxiliary extrusion container 812; the extruder heats the material container 81 through a heating coil, and the heating temperature can be set to be between 400 and 450 ℃.
As shown in fig. 2, another aspect of the present invention provides an apparatus for processing aluminum bars from aluminum scraps, which performs processing according to the above-mentioned process method, and includes a crusher 1, a cleaning mechanism 2, a dryer 3, a bag-type dust collector 4, an electrostatic separator 5, a belt conveyor, a magnetic separator 7, an extruder, an air cooling apparatus 9, a cutting machine 10, and a storage platform 11; 1 one side of rubbing crusher is provided with wiper mechanism 2, wiper mechanism 2 is kept away from 1 one side of rubbing crusher and is provided with drying-machine 3, drying-machine 3 is connected with sack cleaner 4, drying-machine 3 is kept away from wiper mechanism 2 one side and is provided with electrostatic separation machine 5, electrostatic separation machine 5 is kept away from 3 one side and is provided with belt conveyor, belt conveyor keeps away from 5 one side of electrostatic separation machine and sets up magnet separator 7, 7 lower parts of magnet separator set up the extruder, discharge gate 814 one side of extruder sets up air-cooled equipment 9, be used for cooling down aluminium bar 12, when aluminium bar 12 extrudes predetermined length, cutting machine 10 cuts off it, and place aluminium bar 12 that cut on the storage platform 11 on next door, wait for transporting. In this embodiment, the predetermined set of aluminum bars 12 has an extruded length of 6m.
The extruder comprises a material container 81 with a cylindrical cavity and a pressure rod 82 matched with the material container 81, and an electric heating device 84 for heating the material container 81 is arranged outside the material container 81; the aluminum scrap extrusion device further comprises a hydraulic machine, wherein the hydraulic machine comprises a hydraulic cylinder 83, and the hydraulic cylinder 83 drives the compression rod 82 to extrude aluminum scrap in the material container 81. In this embodiment, the electric heater 84 is provided as a heating coil that is fitted over the main bladder 811.
As shown in fig. 3, the material container 81 includes a main extrusion container 811 and an auxiliary extrusion container 812 perpendicular to the main extrusion container 811, the upper portion of the auxiliary extrusion container 812 is connected with a feeding hole 813, one end of the main extrusion container 811 is provided with a discharging hole 814, and the press rod 82 includes a first press rod 82 matched with the main extrusion container 811 and a second press rod 82 matched with the auxiliary extrusion container 812. The length of the main bladder 811 is greater than the length of the auxiliary bladder 812.
When the extruder works, the heating coil heats the main extrusion liner 811, aluminum scraps enter the auxiliary extrusion liner 812 from the feeding hole 813, the hydraulic cylinder 83 on one side of the auxiliary extrusion liner 812 drives the second pressure rod 82 to extrude the aluminum scraps into the main extrusion liner 811, the hydraulic cylinder 83 on one side of the main extrusion liner 811 drives the first pressure rod 82 to extrude the aluminum scraps in the main extrusion liner 811, the aluminum scraps are heated at a high temperature of about 400 ℃ and extruded at a high pressure of about 30MP in the main extrusion liner 811 to quickly form the aluminum bar 12 with compact density, and the aluminum bar 12 is extruded from the discharging hole 814, and in the extrusion process, the temperature of the aluminum bar 12 is still high, so that the air cooling equipment 9 is arranged at the position, close to the discharging hole 814, of the main extrusion liner 811 to carry out air cooling on the aluminum bar 12, and then the extruded aluminum bar 12 is cut into a certain length by the cutting machine.
The equipment and the process method for processing the aluminum bar by the aluminum scraps break through a driven aluminum scrap recovery processing mode, the aluminum bar 12 processed by physical extrusion can reach the hardness and the density of the bar cast after the melting in the traditional process, and compared with the traditional process, the equipment and the process method eliminate burning loss, save energy consumption, reduce environmental pollution, consume less time, improve production efficiency, greatly reduce production cost and are worthy of popularization.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A process method for processing aluminum bars by using aluminum scraps is characterized by comprising the following steps:
s1, crushing collected waste aluminum into aluminum scraps;
s2, cleaning;
s3, drying;
s4, screening for the first time to remove non-conductive impurities in the aluminum scraps;
s5, screening for the second time, and screening iron-containing impurities in the aluminum scraps;
s6, heating and pressurizing to extrude an aluminum bar;
s7, cooling by air;
s8, cutting off the aluminum bar;
the crushing in the step S1 is realized by a crusher; the cleaning in the step S2 is high-pressure water cleaning; the drying in the step S3 is realized by a dryer, and the temperature range is set to be 200-250 ℃; the first screening in the step S4 is to remove non-conductive impurities such as plastics, residual dust and the like through an electrostatic separator; the second screening of the step S5 is to remove the iron-containing impurities through a magnetic separator; the step S6 is realized by adopting an extruder, the extruder comprises a material container with a cylindrical cavity and a pressure rod matched with the material container, the outside of the material container is electrically heated, the heating temperature range is set to be 400-450 ℃, the pressure rod is driven by a hydraulic cylinder to extrude the aluminum scraps in the material container, and the pressure range is set to be 15-30 MP; s7, cooling the aluminum bar extruded in the previous step through air cooling equipment; and S8, cutting off the aluminum bar by a cutting machine.
2. The process method for processing the aluminum bar by using the aluminum scraps as claimed in claim 1, wherein the process method comprises the following steps: the material courage including main extrusion courage and with main extrusion courage vertically is assisted and is extruded the courage, it is connected with the feed inlet to assist the extrusion courage, main extrusion courage one end is provided with the discharge gate, the depression bar include with main extrusion courage complex first depression bar and with assist extrusion courage complex second depression bar.
3. The process method for processing the aluminum bar by using the aluminum scraps as claimed in claim 1, wherein the process method comprises the following steps: the dryer is connected with a bag-type dust collector.
4. The process method for processing the aluminum bar by using the aluminum scraps as claimed in claim 1, wherein the process method comprises the following steps: and S4, conveying the aluminum scraps subjected to the first screening in the step S4 to a magnetic separator through a belt conveyor, and conveying the aluminum scraps into an extruder for heating and pressurizing molding after the second screening in the magnetic separator is completed.
5. The process method for processing the aluminum bar by using the aluminum scraps as claimed in claim 1, wherein the process method comprises the following steps: the extruder heats the material container through a heating coil.
6. The utility model provides a aluminium bar equipment is processed to aluminium scrap aluminium bits which characterized in that: the process method of claim 1 comprises a crusher, a cleaning mechanism, a dryer, a bag-type dust remover, an electrostatic separator, a belt conveyor, a magnetic separator, an extruder, air cooling equipment, a cutting machine and a storage platform; rubbing crusher one side is provided with wiper mechanism, wiper mechanism keeps away from rubbing crusher one side and is provided with the drying-machine, the drying-machine is connected with the sack cleaner, the drying-machine is kept away from wiper mechanism one side and is provided with electrostatic separation machine, electrostatic separation machine keeps away from drying-machine one side and is provided with belt conveyor, belt conveyor keeps away from electrostatic separation machine one side and sets up the magnet separator, magnet separator one side sets up the extruder, discharge gate one side of extruder sets up forced air cooling equipment and cutting machine, and the aluminium bar that the cutting is good is placed on depositing the platform.
7. The aluminum bar processing equipment for the aluminum scraps of the waste aluminum as claimed in claim 6, wherein: the extruder comprises a material container with a cylindrical cavity and a pressure rod matched with the material container, and an electric heating device for heating the material container is arranged outside the material container; the aluminum scrap extrusion device further comprises a hydraulic machine, wherein the hydraulic machine comprises a hydraulic cylinder, and the hydraulic cylinder drives a pressure rod to extrude aluminum scraps in the material container.
8. The aluminum bar processing equipment for the aluminum scraps of the waste aluminum as claimed in claim 7, wherein: the material courage including main extrusion courage and with main extrusion courage vertically is assisted and is extruded the courage, it is connected with the feed inlet to assist the extrusion courage, main extrusion courage one end is provided with the discharge gate, the depression bar include with main extrusion courage complex first depression bar and with assist extrusion courage complex second depression bar.
9. The apparatus of claim 8, wherein the apparatus comprises: the point heating device is set as a heating coil, and the heating coil is sleeved on the main extrusion container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211439343.9A CN115740461A (en) | 2022-11-17 | 2022-11-17 | Aluminum bar processing equipment and process method by using aluminum scraps |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211439343.9A CN115740461A (en) | 2022-11-17 | 2022-11-17 | Aluminum bar processing equipment and process method by using aluminum scraps |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117305603A (en) * | 2023-10-17 | 2023-12-29 | 中信戴卡股份有限公司 | Solid-phase synthesis recovery method for aluminum scraps of automobile parts |
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2022
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117305603A (en) * | 2023-10-17 | 2023-12-29 | 中信戴卡股份有限公司 | Solid-phase synthesis recovery method for aluminum scraps of automobile parts |
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