A magnetic separation device for lithium battery recycling

Abstract

The utility model discloses a lithium battery recycling technical field's a kind of magnetic separation device for lithium battery recycling, including base, fixedly connected with feed hopper on the base, be provided with scattering subassembly in the feed hopper, fixedly connected with feed pipe on the feed hopper, be provided with feed assembly in the feed pipe, the base is movably connected with feed plate, fixedly connected with pivot on the base, fixedly connected with permanent magnet on the pivot, rotatably connected with drum on the pivot, the base is detachably connected with brush plate, the base is provided with fixed component, the fixed component is used to fix brush plate, fixedly connected with discharge plate on the base, be provided with material collecting box in the base, the utility model is scattered by scattering subassembly to material, to avoid the leakage of selection or misselection caused by material agglomeration, and then improve separation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery recycling technology, and in particular to a magnetic separation device for lithium battery recycling. Background Technology

[0002] Lithium battery recycling refers to the process of collecting, dismantling, processing, and reusing waste lithium batteries. It aims to achieve resource recycling, reduce environmental pollution, and decrease dependence on primary mineral resources. Among them, magnetic separation devices for lithium battery recycling are key equipment used to separate magnetic impurities (such as iron, nickel, cobalt, etc.) from waste lithium battery crushed materials. They achieve efficient separation of magnetic and non-magnetic materials through high-intensity magnetic fields, which is the core link to improve the purity of recycled materials and ensure battery performance.

[0003] However, existing technologies have some problems: existing magnetic separation devices for lithium battery recycling usually pour the material directly onto the drum. However, the material may stick together in clumps during the conveying process, resulting in poor separation effect. At the same time, when existing devices are working continuously, impurities can stick to the surface of the drum, which weakens the magnetism and affects the magnetic separation efficiency. Therefore, we propose a magnetic separation device for lithium battery recycling. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a magnetic separation device for lithium battery recycling, which disperses materials through a dispersing component, thereby avoiding missed or incorrect selection due to material agglomeration and improving separation efficiency.

[0005] This utility model is implemented as follows: a magnetic separator for lithium battery recycling includes a base, a feeding hopper fixedly connected to the base, a dispersing component disposed inside the feeding hopper, a conveying pipe fixedly connected to the feeding hopper, a conveying component disposed inside the conveying pipe, a feeding plate movably connected to the base, a rotating shaft fixedly connected to the base, a permanent magnet fixedly connected to the rotating shaft, a roller rotatably connected to the rotating shaft, a brush plate detachably connected to the base, a fixing component disposed on the base for fixing the brush plate, a discharge plate fixedly connected to the base, and a collection box disposed inside the base.

[0006] Optionally, the dispersing assembly includes a dispersing shaft rotatably connected inside the feed hopper, a plurality of dispersing hammers are fixedly connected to the outer wall of the dispersing shaft, a first motor is fixedly connected to the outer wall of the feed hopper, and the dispersing shaft is fixedly connected to the output end of the first motor.

[0007] Optionally, the feeding assembly includes a second motor, which is fixedly connected to the outer wall of the feeding pipe. The output end of the second motor is fixedly connected to a feeding shaft, which is rotatably connected inside the feeding pipe. A spiral blade is fixedly connected to the outer wall of the feeding shaft.

[0008] Optionally, a support frame is fixedly connected to the base, a first spring is fixedly connected to the support frame, a fixed plate is fixedly connected to the first spring, the feed plate is fixedly connected to the fixed plate, and a vibration motor is fixedly connected to the fixed plate.

[0009] Optionally, a fixed sleeve is rotatably connected to the rotating shaft, the roller is fixedly connected to the fixed sleeve, a third motor is fixedly connected to the base, and the fixed sleeve is fixedly connected to the output end of the third motor.

[0010] Optionally, the fixing component includes a fixing pin, a fixing groove is provided on the base, a sliding groove is provided on the inner wall of the fixing groove, the fixing pin is slidably connected in the sliding groove, a second spring is fixedly connected to the fixing pin, a slot is provided on the brush plate, the fixing pin is engaged in the slot, and a pull ring is rotatably connected to one end of the fixing pin.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By starting the first motor, the dispersing shaft is driven to rotate. After the dispersing shaft rotates, it will drive the dispersing hammer to rotate, which mechanically crushes and disperses the material entering the magnetic separator. This allows ferromagnetic materials (such as steel shell fragments) to be fully separated from non-magnetic materials such as positive and negative electrode materials and diaphragm paper. This dispersed state makes it easier for the magnetic separator to accurately adsorb ferromagnetic impurities using the magnetic field, avoiding missed or incorrect selection due to material agglomeration, thereby improving separation efficiency.

[0012] 2. This utility model uses a second motor to drive the conveying shaft to rotate, which in turn drives the spiral blade to rotate. The rotation of the spiral blade generates axial thrust, which conveys the material in a fixed direction, avoiding blockages caused by material accumulation or poor flow. At the same time, by adjusting the speed of the spiral blade, the material conveying speed can be precisely controlled to match the processing capacity of subsequent sorting equipment and ensure stable operation of the process.

[0013] 3. The base of this utility model is detachably connected to a brush plate. During the magnetic separation process, some sticky impurities may adhere to the surface of the drum and cannot be removed. As the drum continues to rotate, these impurities may gradually accumulate and affect the magnetic separation effect. The brush plate can effectively scrape off these adsorbed impurities by contacting the drum surface with its soft bristles, keeping the drum surface clean and further improving the magnetic separation efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram provided by this utility model.

[0016] Figure 2 This is a cross-sectional view of the feed hopper provided by this utility model.

[0017] Figure 3 This is a cross-sectional view of the material conveying pipe provided by this utility model.

[0018] Figure 4 This is a schematic diagram of the fixing plate provided by this utility model.

[0019] Figure 5 This is a schematic diagram of the permanent magnet provided by this utility model.

[0020] Figure 6 This is a cross-sectional view of the brush plate provided by this utility model.

[0021] In the diagram: 1. Base; 2. Feed hopper; 3. Dispersing assembly; 31. Dispersing shaft; 32. Dispersing hammer; 33. First motor; 4. Conveying pipe; 5. Conveying assembly; 51. Second motor; 52. Conveying shaft; 53. Spiral blade; 6. Feeding plate; 7. Rotating shaft; 8. Permanent magnet; 9. Fixing assembly; 91. Fixing pin; 92. Second spring; 93. Pull ring; 10. Roller; 11. Brush plate; 12. Discharge plate; 13. Collection box; 14. Support frame; 15. First spring; 16. Fixing plate; 17. Vibrating motor; 18. Fixing sleeve; 19. Third motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 6 As shown in the figure, the magnetic separator for lithium battery recycling provided in this embodiment of the utility model includes a base 1. The base 1 is welded from multiple sets of stainless steel materials. The main function of the base 1 is to support the entire device and ensure that the device remains stable during operation.

[0024] Furthermore, a feeding hopper 2 is fixedly connected to the base 1, and a dispersing component 3 is provided inside the feeding hopper 2. The dispersing component 3 includes a dispersing shaft 31, which is rotatably connected inside the feeding hopper 2. Multiple sets of dispersing hammers 32 are fixedly connected to the outer wall of the dispersing shaft 31. A first motor 33 is fixedly connected to the outer wall of the feeding hopper 2, and the dispersing shaft 31 is fixedly connected to the output end of the first motor 33.

[0025] Specifically, lithium battery recycled materials typically include shell fragments, separator paper, positive and negative electrode materials, and ferromagnetic impurities (such as steel shells and caps). After crushing, these materials may agglomerate or entangle to form block or sheet-like structures. When the lithium battery recycled materials enter the feed hopper 2, the first motor 33 starts and drives the dispersing shaft 31 to rotate. After the dispersing shaft 31 rotates, it drives the dispersing hammer 32 to rotate, mechanically crushing and dispersing the materials entering the magnetic separator. This allows the ferromagnetic materials (such as steel shell fragments) to be fully separated from the positive and negative electrode materials, separator paper, and other non-magnetic materials. This dispersed state facilitates the magnetic separator to accurately adsorb ferromagnetic impurities using the magnetic field, avoiding missed or incorrect selection due to material agglomeration, thereby improving separation efficiency.

[0026] Furthermore, a conveying pipe 4 is fixedly connected to the feed hopper 2, and a conveying assembly 5 is provided inside the conveying pipe 4. The conveying assembly 5 includes a second motor 51, which is fixedly connected to the outer wall of the conveying pipe 4. A conveying shaft 52 is fixedly connected to the output end of the second motor 51, and the conveying shaft 52 is rotatably connected inside the conveying pipe 4. A spiral blade 53 is fixedly connected to the outer wall of the conveying shaft 52.

[0027] Specifically, the materials dispersed by the dispersing component 3 are usually uneven in particle size and have large differences in flowability (such as positive and negative electrode powder mixed with metal fragments). At this time, the second motor 51 drives the conveying shaft 52 to rotate, and the conveying shaft 52 drives the spiral blade 53 to rotate. The rotation of the spiral blade 53 generates axial thrust, which conveys the material in a fixed direction, avoiding blockage caused by material accumulation or poor flow. At the same time, by adjusting the speed of the spiral blade 53, the material conveying speed can be precisely controlled to match the processing capacity of the subsequent sorting equipment and ensure stable operation of the process.

[0028] Furthermore, a feed plate 6 is movably connected to the base 1, a support frame 14 is fixedly connected to the base 1, a first spring 15 is fixedly connected to the support frame 14, a fixing plate 16 is fixedly connected to the first spring 15, the feed plate 6 is fixedly connected to the fixing plate 16, and a vibration motor 17 is fixedly connected to the fixing plate 16.

[0029] Specifically, the start of the vibration motor 17 causes the feed plate 6 to vibrate, which causes the material to form a thin layer during the conveying process, avoiding local accumulation. This uniform spreading state can increase the contact area between the material and the magnetic field of the magnetic separator, improve the magnetic separation efficiency, reduce the risk of missed selection, and improve the separation efficiency.

[0030] Furthermore, a rotating shaft 7 is fixedly connected to the base 1, a permanent magnet 8 is fixedly connected to the rotating shaft 7, a roller 10 is rotatably connected to the rotating shaft 7, a fixed sleeve 18 is rotatably connected to the rotating shaft 7, the roller 10 is fixedly connected to the fixed sleeve 18, a third motor 19 is fixedly connected to the base 1, and the fixed sleeve 18 is fixedly connected to the output end of the third motor 19.

[0031] Specifically, the permanent magnet 8 is set to a semi-circular arc shape. When the material falls onto the drum 10 through the feed plate 6, the permanent magnet 8 is set to a certain direction. At this time, the magnetic mineral particles in the material will be attracted to the surface of the drum 10 due to the magnetism of the permanent magnet 8, while other materials will fall to the discharge plate 12 and be discharged. The drum 10 is driven to rotate by the third motor 19, which causes the magnetic mineral particles attracted to the surface of the drum 10 to rotate to the back of the permanent magnet 8. At this time, the magnetism is weaker, and the magnetic minerals will detach from the drum 10 and fall into the collection box 13. The material is separated by alternating magnetic field settings.

[0032] Furthermore, a brush plate 11 is detachably connected to the base 1. During the magnetic separation process, some sticky impurities may adhere to the surface of the drum 10 and cannot be removed. As the drum 10 continues to rotate, these impurities may gradually accumulate and affect the magnetic separation effect. The brush plate 11 can effectively scrape off these adsorbed impurities by contacting the surface of the drum 10 with its soft bristles, keeping the surface of the drum 10 clean and further improving the magnetic separation efficiency.

[0033] Furthermore, a fixing component 9 is provided on the base 1, which is used to fix the brush plate 11. A discharge plate 12 is fixedly connected to the base 1, and a collection box 13 is provided inside the base 1. The fixing component 9 includes a fixing pin 91. A fixing groove is provided on the base 1, and a sliding groove is provided on the inner wall of the fixing groove. The fixing pin 91 is slidably connected in the sliding groove. A second spring 92 is fixedly connected to the fixing pin 91. A slot is provided on the brush plate 11, and the fixing pin 91 is engaged in the slot. A pull ring 93 is rotatably connected to one end of the fixing pin 91.

[0034] Specifically, the brush is prone to wear and tear due to prolonged contact with the roller 10, requiring replacement. By pulling the pull ring 93, the fixing pin 91 is compressed and the second spring 92 is retracted into the slide groove, causing the fixing pin 91 to disengage from the slot of the brush plate 11. At this time, the fixing pin 91 no longer fixes the brush plate 11, and it can be removed for cleaning or replacement. The fixing component 9 allows for quick disassembly and assembly of the brush plate 11, reducing downtime and accelerating magnetic separation efficiency.

[0035] The working principle of this utility model is as follows: This invention starts the first motor 33 to drive the dispersing shaft 31 to rotate. After the dispersing shaft 31 rotates, it drives the dispersing hammer 32 to rotate, which mechanically crushes and disperses the material entering the magnetic separator. This allows ferromagnetic materials (such as steel shell fragments) to be fully separated from non-magnetic materials such as positive and negative electrode materials and diaphragm paper. This dispersed state makes it easy for the magnetic separator to accurately adsorb ferromagnetic impurities by using the magnetic field, avoiding missed or incorrect selection due to material agglomeration, thereby improving separation efficiency.

[0036] This invention uses a second motor 51 to drive the conveying shaft 52 to rotate, which in turn drives the spiral blade 53 to rotate. The rotation of the spiral blade 53 generates axial thrust, which conveys the material in a fixed direction, avoiding blockages caused by material accumulation or poor flow. At the same time, by adjusting the speed of the spiral blade 53, the material conveying speed can be precisely controlled to match the processing capacity of subsequent sorting equipment, ensuring stable operation of the process.

[0037] The base 1 of this utility model is detachably connected to a brush plate 11. During the magnetic separation process, some sticky impurities may adhere to the surface of the drum and cannot be removed. As the drum 10 continues to rotate, these impurities may gradually accumulate and affect the magnetic separation effect. The brush plate 11 can effectively scrape off these adsorbed impurities by contacting the surface of the drum 10 with its soft bristles, keeping the surface of the drum 10 clean and further improving the magnetic separation efficiency.

[0038] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A magnetic separator for lithium battery recycling, comprising a base (1), characterized in that: A feeding hopper (2) is fixedly connected to the base (1). A dispersing component (3) is provided inside the feeding hopper (2). A conveying pipe (4) is fixedly connected to the feeding hopper (2). A conveying component (5) is provided inside the conveying pipe (4). A feeding plate (6) is movably connected to the base (1). A rotating shaft (7) is fixedly connected to the base (1). A permanent magnet (8) is fixedly connected to the rotating shaft (7). A roller (10) is rotatably connected to the rotating shaft (7). A brush plate (11) is detachably connected to the base (1). A fixing component (9) is provided on the base (1). The fixing component (9) is used to fix the brush plate (11). A discharge plate (12) is fixedly connected to the base (1). A collection box (13) is provided inside the base (1).

2. The magnetic separator for lithium battery recycling according to claim 1, characterized in that: The dispersing component (3) includes a dispersing shaft (31), which is rotatably connected inside the feed hopper (2). Multiple sets of dispersing hammers (32) are fixedly connected to the outer wall of the dispersing shaft (31). A first motor (33) is fixedly connected to the outer wall of the feed hopper (2). The dispersing shaft (31) is fixedly connected to the output end of the first motor (33).

3. The magnetic separator for lithium battery recycling according to claim 1, characterized in that: The feeding assembly (5) includes a second motor (51), which is fixedly connected to the outer wall of the feeding pipe (4). The output end of the second motor (51) is fixedly connected to a feeding shaft (52), which is rotatably connected inside the feeding pipe (4). A spiral blade (53) is fixedly connected to the outer wall of the feeding shaft (52).

4. The magnetic separator for lithium battery recycling according to claim 1, characterized in that: A support frame (14) is fixedly connected to the base (1), a first spring (15) is fixedly connected to the support frame (14), a fixing plate (16) is fixedly connected to the first spring (15), a feed plate (6) is fixedly connected to the fixing plate (16), and a vibration motor (17) is fixedly connected to the fixing plate (16).

5. A magnetic separator for lithium battery recycling according to claim 1, characterized in that: A fixed sleeve (18) is rotatably connected to the rotating shaft (7), the roller (10) is fixedly connected to the fixed sleeve (18), a third motor (19) is fixedly connected to the base (1), and the fixed sleeve (18) is fixedly connected to the output end of the third motor (19).

6. A magnetic separator for lithium battery recycling according to claim 1, characterized in that: The fixing component (9) includes a fixing pin (91), a fixing groove is provided on the base (1), a sliding groove is provided on the inner wall of the fixing groove, the fixing pin (91) is slidably connected in the sliding groove, a second spring (92) is fixedly connected to the fixing pin (91), a slot is provided on the brush plate (11), the fixing pin (91) is engaged in the slot, and a pull ring (93) is rotatably connected to one end of the fixing pin (91).

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