Iron remover for recycling lithium batteries

Abstract

The utility model discloses an iron remover for recycling lithium batteries. The iron remover comprises an iron removing device, an iron material recycling and conveying device, a material conveying device and a rack, the iron removal device comprises a permanent magnet, an adsorption support, an iron attraction rolling shaft, an iron attraction conveying rolling shaft and an iron attraction conveying belt. The iron material recycling and conveying device comprises a roller brush, an iron material collecting groove and an iron material collecting box. The iron removal efficiency of materials in the lithium battery recovery production line is improved through the cross design of the material conveying belt and the magnet conveying belt, and iron materials in mixed black powder on the material conveying belt can be fully recycled and reused in an adsorption type iron removal mode; the roller brush and the iron material collecting tank are arranged to be matched with the surface of the rotating iron attracting conveying belt, iron materials attracted to the iron attracting conveying belt are secondarily scraped and cleaned, fine iron materials are prevented from being attached to the iron attracting conveying belt, and effective separation of the iron materials and copper materials is achieved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery recycling, and in particular to an iron remover for lithium battery recycling. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive and negative electrode materials and a non-aqueous electrolyte solution. A traditional lithium-ion battery consists of five main parts: positive electrode material, negative electrode material, electrolyte, diaphragm, and casing. Because lithium-ion batteries contain many harmful substances that can pollute the environment, they need to be recycled after degradation. The recycling process begins by crushing large parts such as the battery casing and metal terminals into smaller fragments. These fragments are then further pulverized into a fine black powder that can be processed by a negative pressure fan. This black powder is a mixture that forms the positive electrode material of the battery. For reuse, the black powder needs to be further processed using an iron separator to separate recyclable metals such as copper and iron from the mixture.

[0003] Current permanent magnet separators primarily rely on manual removal of iron from the permanent magnet, remaining at the stage of manual unloading. This method is difficult to use for large, heavy iron blocks, and it cannot guarantee personnel safety during operation. It is also unsuitable for automated control and is only suitable for small-scale applications. Another method involves belt unloading, which relies on a rotating belt to scrape off iron blocks attracted to the permanent magnet. While this method can still attract iron blocks, the narrow scraper plate makes it easy for some iron blocks to remain attached. Using a larger scraper plate would consume a significant amount of energy and require a large power source. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an iron remover for lithium battery recycling.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses an iron remover for lithium battery recycling, comprising an iron removal device, an iron material recycling and conveying device, a material conveying device, and a frame. The iron removal device is installed on the upper part of the material conveying device, and the iron material recycling and conveying device is connected to the iron removal device. The iron removal device includes a permanent magnet, an adsorption bracket, an iron-attracting roller, an iron-attracting conveying roller, and an iron-attracting conveyor belt. The iron-attracting roller and the iron-attracting conveying roller are installed on the adsorption bracket, and the iron-attracting conveyor belt is fitted onto the iron-attracting roller and the iron-attracting conveying roller. The permanent magnet is installed on the adsorption bracket located inside the iron-attracting conveyor belt. The iron-attracting roller is connected to an adsorption conveying motor through an adsorption transmission chain, and the adsorption conveying motor drives the iron-attracting roller to rotate through the adsorption transmission chain. The iron material recycling and conveying device includes a roller brush, an iron material collection trough, and an iron material collection box. The surface of the roller brush is parallel to the surface of the iron-attracting conveyor belt, and the upper end of the iron material collection trough is in contact with the surface of the iron-attracting conveyor belt.

[0007] As a preferred embodiment of the present invention, the permanent magnet is plate-shaped, and the top surface of the permanent magnet is fixed to the bottom of the adsorption bracket, and the permanent magnet is symmetrically arranged along the center of the adsorption bracket.

[0008] As a preferred embodiment of this utility model, the adsorption bracket is provided with four fixing chains at its four corners, which are suspended below the frame, and the fixing chains are symmetrically arranged along both sides of the adsorption bracket.

[0009] As a preferred embodiment of this utility model, the iron material collection trough is U-shaped, with its two sides welded to the inner side of the adsorption bracket, and its top edge connected to the surface of the magnetic conveyor belt for scraping off residual iron material from the magnetic conveyor belt.

[0010] As a preferred embodiment of the present invention, the material conveying device includes a material conveyor belt and a material drive motor. The material conveyor belt is fixed to the bottom of the adsorption bracket and is located directly below the permanent magnet. The material drive motor is fixed to one end of the material conveyor belt.

[0011] As a preferred technical solution of this utility model, the roller brush is provided with bearing seats at both ends and can be rotatably connected to the frame. The brush body in the middle of the roller brush is cylindrical. The middle part of the roller brush is in contact with the surface of the magnetic conveyor belt and is used to brush the iron material on the magnetic conveyor belt into the iron material collection trough.

[0012] As a preferred embodiment of this utility model, the iron material collection box is located at the end of the iron material collection trough, and the iron material collection box is symmetrically arranged along the iron material collection trough for recovering iron material from the mixed materials.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The cross-shaped design of the material conveyor belt and the magnetic conveyor belt improves the iron removal efficiency of materials in the lithium battery recycling production line. The adsorption-type iron removal method can fully separate and recover the iron in the mixed black powder on the material conveyor belt, maximizing the conservation and utilization of resources.

[0015] 2. By setting up roller brushes and iron material collection troughs to match the surface of the rotating magnetic conveyor belt, the iron material adsorbed on the magnetic conveyor belt is scraped and cleaned a second time, preventing fine iron material from sticking to the magnetic conveyor belt, thus achieving effective separation of iron and copper materials in the mixed black powder and improving the recycling rate of iron material. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is the front view of this utility model;

[0019] Figure 3 This is a side view of the present invention;

[0020] Figure 4 This is a top view of the present invention;

[0021] Figure 5 This is a cross-sectional structural schematic diagram of the present invention;

[0022] In the diagram: 1. Iron removal device; 2. Iron recovery device; 3. Material conveying device; 4. Frame; 11. Permanent magnet; 12. Adsorption support; 13. Iron-absorbing roller; 14. Iron-absorbing conveyor roller; 15. Iron-absorbing conveyor belt; 16. Adsorption transmission chain; 17. Adsorption conveyor motor; 18. Fixed chain; 21. Drum brush; 22. Iron collection trough; 23. Iron collection box; 31. Material conveyor belt; 32. Material drive motor. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] In the attached diagram, all identical reference numerals refer to the same components.

[0025] like Figure 1-5 As shown, this utility model provides an iron remover for lithium battery recycling, including an iron removal device 1, an iron material recycling conveying device 2, a material conveying device 3, and a frame 4; the iron removal device 1 is installed on the upper part of the material conveying device 3, and the iron material recycling conveying device 2 is connected to the iron removal device 1; the iron removal device 1 includes a permanent magnet 11, an adsorption bracket 12, an iron-absorbing roller 13, an iron-absorbing conveying roller 14, and an iron-absorbing conveyor belt 15. The iron-absorbing roller 13 and the iron-absorbing conveying roller 14 are both installed on the adsorption bracket 12 through bearing seats, and the iron-absorbing conveyor belt 15 is fitted on the iron-absorbing roller 13 and the iron-absorbing conveying roller 14. The permanent magnet 11 is bolted to the bottom of the adsorption bracket 12 inside the magnetic conveyor belt 15; the magnetic roller 13 is connected to the adsorption transmission motor 17 through the adsorption transmission chain 16, and the adsorption transmission motor 17 drives the magnetic roller 13 to rotate through the adsorption transmission chain 16; the iron material recycling and conveying device 2 includes a roller brush 21, an iron material collection trough 22 and an iron material collection box 23. The surface of the roller brush 21 is parallel to the surface of the magnetic conveyor belt 15, and the upper end of the iron material collection trough 22 is in contact with the surface of the magnetic conveyor belt 15.

[0026] In this embodiment, the adsorption conveyor motor 17 drives the magnetic roller 13 to rotate through the adsorption transmission chain 16, thereby driving the magnetic conveyor belt 15 to rotate, sucking out the iron material mixed with black powder on the material conveying device 3, and collecting it into the iron material collection box 23, thereby realizing the separation and recycling of iron material.

[0027] The method of using this utility model is as follows:

[0028] 1. The mixed black powder containing copper and iron is transported on the material conveyor belt. When the mixed black powder reaches below the permanent magnet 11, the iron in the mixed black powder is attracted by the magnetic field generated by the permanent magnet 11, adsorbed onto the lower surface of the magnetic conveyor belt 15, and rotates with the magnetic conveyor belt 15 to the upper surface of the iron conveyor belt 15.

[0029] 2. When the mixed black powder moves with the magnetic conveyor belt 15 to the unloading station corresponding to the iron material collection tank 22, the magnetic lines generated by the permanent magnet 11 are relatively weak at this point. The iron material adsorbed on the magnetic conveyor belt 15 is demagnetized and falls into the iron material collection tank 22 under the brushing action of the roller brush 21.

[0030] 3. The residual iron that is not brushed off by the roller brush 21 continues to rotate with the magnetic conveyor belt 15. When it reaches the upper position of the iron collection trough 22, it is scraped off by the upper edge of the iron collection trough 22 and falls into the iron collection trough 22. Under the action of gravity, it slides down into the iron collection box below.

[0031] Furthermore, the permanent magnet 11 is plate-shaped, and the top surface of the permanent magnet 11 is fixed to the bottom of the adsorption bracket 12. The permanent magnet 11 is symmetrically arranged along the center of the adsorption bracket 12.

[0032] In this embodiment, one end of the permanent magnet 11 extends into the side of the magnetic roller 13 on one side, magnetizing the magnetic roller 13. The permanent magnet 11 and the magnetic roller 13 generate a magnetic field, and the magnetic lines of force attract the iron material in the mixed black powder onto the magnetic conveyor belt 15, so that the iron material will not automatically fall off during the conveying process of the magnetic conveyor belt 15. There is no magnet located below the magnetic conveyor belt 15 on the other side. The magnetic lines of force at the arc-shaped unloading station corresponding to the iron material collection trough 22 are weak. The iron material is demagnetized at this point and is brushed off by the roller brush 21.

[0033] Furthermore, the four corners of the adsorption support 12 are suspended below the frame 4 by four fixing chains 18, which are symmetrically arranged along both sides of the adsorption support 12.

[0034] In this embodiment, the four fixed chains 18 can swing at a small angle in the horizontal plane. When there is a lot of iron material between the magnetic conveyor belt 15 and the roller brush 21, the magnetic support 12 can swing at a small angle with the fixed chains 18 under the action of the iron material, so as to increase the throughput of iron material and prevent the iron material from accumulating and blocking between the roller brush 21 and the magnetic support 12, thus affecting the transmission efficiency of the iron material.

[0035] Furthermore, the iron collection trough 22 is U-shaped, with both sides of the iron collection trough 22 welded to the inner side of the adsorption bracket 12, and the top edge of the iron collection trough 22 connected to the surface of the magnetic conveyor belt 15, for scraping off residual iron on the magnetic conveyor belt 15.

[0036] In this embodiment, the top edge of the iron material collection trough 22 is in contact with the surface of the magnetic conveyor belt 15. Any residual iron material not removed by the roller brush 21 continues to rotate to the top edge of the iron material collection trough 22 and is completely cleaned and scraped off. This secondary scraping structure effectively separates the iron material from the mixed black powder.

[0037] Furthermore, the material conveying device 3 includes a material conveyor belt 31 and a material drive motor 32. The material conveyor belt 31 is fixed to the bottom of the adsorption bracket 12 and is located directly below the permanent magnet 11. The material drive motor 32 is fixed to one end of the material conveyor belt 31.

[0038] In this embodiment, the mixed black powder is conveyed along the material conveyor belt 31. When it is conveyed to the area below the adsorption support 12, the magnetic iron material in the mixed black powder is attracted by the permanent magnet 11 to the lower surface of the magnetic conveyor belt 15, and rotates together with the magnetic conveyor belt 15 to its upper surface.

[0039] Furthermore, the two ends of the roller brush 21 are rotatably connected to the frame 4 through the bearing seats 24. The brush body in the middle of the roller brush 21 is cylindrical. The middle part of the roller brush 21 is in contact with the surface of the magnetic conveyor belt 15 and is used to brush the iron material on the magnetic conveyor belt 15 into the iron material collection trough 22.

[0040] In this embodiment, the roller brush 21 is driven to rotate by the rotating magnetic conveyor belt 15. The two work together to remove the iron material. When there is little iron material, the roller brush 21 can brush away most of the iron material on the magnetic conveyor belt 15 and automatically fall into the collection trough 22. When there is a lot of iron material, under the squeezing action of the roller brush 21, the iron material pushes the magnetic conveyor belt 15 apart, and a certain gap is formed between the roller brush 21 and the magnetic conveyor belt 15, so as to facilitate the iron material to fall.

[0041] Furthermore, the iron material collection box 23 is located at the end of the iron material collection trough 22. The iron material collection box 23 is symmetrically arranged along the iron material collection trough 22 and is used to recover iron material from the mixed materials.

[0042] This invention relates to an iron remover for lithium battery recycling. The cross-shaped design of the material conveyor belt and the magnetic conveyor belt improves the iron removal efficiency in the lithium battery recycling production line. Furthermore, the adsorption-based iron removal method effectively separates and recovers iron from the mixed black powder on the material conveyor belt, maximizing resource conservation. By configuring roller brushes and an iron collection trough that match the surface of the rotating magnetic conveyor belt, a secondary scraping and cleaning process is performed on the iron adsorbed on the magnetic conveyor belt, further enhancing the iron recycling rate.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A de-ironer for lithium battery recycling, characterized by, The application relates to a device for removing iron from mixed materials, which comprises an iron removing device (1), an iron recovery conveying device (2), a material conveying device (3) and a rack (4); the iron removing device (1) is installed on the upper portion of the material conveying device (3), and the iron recovery conveying device (2) is connected with the iron removing device (1); the iron removing device (1) comprises permanent magnets (11), an adsorption support (12), an iron adsorption roller (13), an iron adsorption conveying roller (14) and an iron adsorption conveying belt (15); the iron adsorption roller (13) and the iron adsorption conveying roller (14) are installed on the adsorption support (12); the iron adsorption conveying belt (15) is sleeved on the iron adsorption roller (13) and the iron adsorption conveying roller (14); the permanent magnets (11) are installed on the adsorption support (12) located on the inner side of the iron adsorption conveying belt (15); the iron adsorption roller (13) is connected with an adsorption conveying motor (17) through an adsorption transmission chain (16); the adsorption conveying motor (17) drives the iron adsorption roller (13) to rotate through the adsorption transmission chain (16); the iron recovery conveying device (2) comprises a roller brush (21), an iron material collecting groove (22) and an iron material collecting box (23); the surface of the roller brush (21) is arranged in parallel with the surface of the iron adsorption conveying belt (15); and the upper end of the iron material collecting groove (22) is connected with the surface of the iron adsorption conveying belt (15).

2. The iron eliminator for lithium battery recycling according to claim 1, characterized in that, The permanent magnets (11) are plate-shaped, and the top surface of the permanent magnets (11) is fixed to the bottom of the adsorption support (12); and the permanent magnets (11) are arranged in a central symmetry along the adsorption support (12).

3. The iron eliminator for lithium battery recycling according to claim 1, characterized in that, Four fixed chains (18) are arranged on the four corners of the adsorption support (12) and are hung below the rack (4); and the fixed chains (18) are arranged in a symmetry along the two sides of the adsorption support (12).

4. The iron eliminator for lithium battery recycling according to claim 1, characterized in that, The iron material collecting groove (22) is U-shaped, and the two side edges of the iron material collecting groove (22) are welded to the inner side of the adsorption support (12); the top edge of the iron material collecting groove (22) is connected with the surface of the iron adsorption conveying belt (15) and is used for scraping the residual iron material on the iron adsorption conveying belt (15).

5. The iron eliminator for lithium battery recycling according to claim 1, characterized in that, The material conveying device (3) comprises a material conveying belt (31) and a material driving motor (32); the material conveying belt (31) is fixed to the bottom of the adsorption support (12); the material conveying belt (31) is located directly below the permanent magnets (11); and the material driving motor (32) is fixed to one end of the material conveying belt (31).

6. The iron eliminator for lithium battery recycling according to claim 1, characterized in that, The roller brush (21) is rotatably connected to the rack (4) through bearing seats (24) arranged at the two ends of the roller brush (21); the brush body of the middle portion of the roller brush (21) is cylindrical; the middle portion of the roller brush (21) is connected with the surface of the iron adsorption conveying belt (15) and is used for brushing the iron material on the iron adsorption conveying belt (15) into the iron material collecting groove (22).

7. The iron eliminator for lithium battery recycling according to claim 1, characterized in that, The iron material collecting box (23) is arranged at the end of the iron material collecting groove (22) and is arranged in a symmetry along the iron material collecting groove (22) and is used for recovering the iron material in the mixed materials.

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