Graphite separation equipment for negative plate of lithium battery

Abstract

The utility model relates to the technical field of lithium battery recovery, and discloses lithium battery negative plate graphite separation equipment, which comprises a box body, a separation assembly rotatably arranged at the bottom of a top plate, a screening assembly movably arranged in the box body, a screening box, a fixing frame and a bottom plate, through the arrangement of the separation assembly and the screening assembly, a magnetic plate is driven to adsorb metal powder in a receiving box through rotation formed by meshing a gear with a fixed gear ring, and then graphite powder is screened through the screening assembly; the magnetic plate is arranged on the screening box, large metal particles difficult to crush and small metal particles with magnetism can be screened, left in the screening box and adsorbed by the magnetic plate, and small non-magnetic graphite powder is separated out, so that substances with different particle sizes are effectively separated, the purity of the graphite powder is guaranteed, and the separation efficiency of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery recycling technology, specifically, it relates to a graphite separation device for lithium battery negative electrode sheets. Background Technology

[0002] With the continuous advancement of technology and the upgrading of equipment, the performance of negative electrode graphite separation equipment has been significantly improved. Modern negative electrode graphite separation equipment features high efficiency, energy saving, and environmental protection. It can achieve efficient separation of graphite negative electrode materials and metallic copper, and has low energy consumption and a high degree of automation.

[0003] Existing technology discloses a graphite separation device for lithium battery negative electrode sheets (CN221508284U), including a frame. Inside the frame, from top to bottom, are arranged a cutting roller, an extrusion roller, a crushing roller, and a vibrating disc. The drive motors are all located outside the frame. After the lithium battery is cut, graphite flows out from the cut. With the gradual extrusion of the upper and lower extrusion rollers, most of the graphite powder is squeezed out and falls directly into the bottom graphite outlet. Simultaneously, the lithium battery casing is flattened, and the lithium battery entering the crushing mechanism consists only of the casing and a small amount of graphite powder. Compared to traditional direct crushing methods for lithium batteries, most of the graphite powder does not need to be crushed while encased in the casing, eliminating the problem of a large amount of graphite powder hardening and adhering to the inside of the casing after being compressed, resulting in higher initial crushing efficiency for the lithium battery.

[0004] The search revealed that existing technologies lack material filtration measures, which prevents the effective separation of substances of different particle sizes. This not only affects the separation efficiency of graphite powder but also its purity. Furthermore, the structure of the device cannot achieve the separate collection of metal powder and graphite powder, thus limiting its use.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the aforementioned technical problem of poor separation effect of the collection boxes due to the inability to classify, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] Graphite separation equipment for lithium battery negative electrode sheets, including

[0008] The box has a top plate fixed to its top surface by bolts, and a door is hinged to one side of the box by a hinge.

[0009] A separation assembly is rotatably mounted at the bottom of a top plate. The separation assembly includes a fixed gear ring, a support frame, a gear, and a magnetic plate. The fixed gear ring is fixedly mounted on the bottom surface of the top plate. The support frame is rotatably mounted inside the fixed gear ring. The gear is fixedly mounted above the magnetic plate. The gear and the magnetic plate are rotatably mounted on the upper and lower sides of the support frame, respectively.

[0010] The screening assembly is movably disposed within the housing. The screening assembly includes a screening box, a fixing frame, and a base plate. The fixing frame is fixedly disposed on the top surface of the base plate, the screening box is movably disposed within the fixing frame, and the base plate is rotatably disposed within the housing.

[0011] In a preferred embodiment of this utility model, a crushing box is fixedly installed on the top surface of the top plate, an electric crushing blade is installed inside the crushing box, a retaining edge is fixedly installed on the inner wall of the box, and a receiving box is placed between the top plate and the retaining edge.

[0012] In a preferred embodiment of this utility model, a uniform speed motor is fixedly installed on the top surface of the top plate. The output end of the uniform speed motor is connected to the top surface of the support frame. The support frame is an L-shaped structure composed of a cylinder and a long plate. The cylinder rotates in a fixed gear ring. The gear is rotatably arranged between the long plate and the top plate. The gear meshes with and drives the fixed gear ring.

[0013] In a preferred embodiment of this utility model, the magnetic plate is rotatably disposed below the long plate, and the magnetic plate rotates within the receiving box.

[0014] In a preferred embodiment of this utility model, a bottom groove is provided on the inner bottom surface of the box body, and a high-speed motor is fixedly installed in the bottom groove. The output end of the high-speed motor is connected to the bottom surface of the bottom plate, and an arc-shaped fixing frame is fixedly connected to one end of the top surface of the bottom plate. The screening box is snapped into the fixing frame.

[0015] In a preferred embodiment of this utility model, the inner wall of the fixing frame is symmetrically provided with six slots on both sides, and the inner wall of the fixing frame is evenly provided with three positioning grooves between two slots. The positioning grooves are provided between two slots. The two sides of the screening box are respectively provided with a protrusion corresponding to the shape of the slot. An arc-shaped plate corresponding to the shape of the positioning groove is fixedly provided on one side of the screening box. The screening box is engaged in the slot by the protrusion and the screening box is engaged in the positioning groove by the arc-shaped plate. There are three screening boxes, and the three screening boxes have different screen hole specifications.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. By setting up a separation component and a screening component, the rotation formed by the meshing of gears and the fixed gear ring drives the magnetic plate to adsorb the metal powder in the receiving box. Then, the screening component is used to screen the graphite powder. In this way, larger, hard-to-break metal particles and smaller magnetic metal particles are screened and left in the screening box or adsorbed by the magnetic plate, while smaller, non-magnetic graphite powder is separated out. This achieves effective separation of materials of different particle sizes, thereby ensuring the purity of the graphite powder and improving the separation efficiency of the device.

[0018] 2. A baffle plate is installed inside the box to hold smaller, non-magnetic graphite powders. Metal powders are collected using a sieve box and a magnetic plate, thus achieving the purpose of classified collection. This not only facilitates operation but also improves the practicality of the device.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0022] Figure 2 This is a structural disassembly diagram of the present invention;

[0023] Figure 3 This is a disassembly diagram of the detachable components of this utility model;

[0024] Figure 4 This is a cross-sectional schematic diagram of the present invention.

[0025] In the diagram: 10. Box body; 11. Top plate; 12. Box door; 13. Edge clamp; 14. Receiving box; 15. Crushing box; 16. Electric crushing blade; 17. Screening box; 18. Fixing frame; 19. Clamping slot; 20. Positioning groove; 21. Bottom plate; 22. High-speed motor; 23. Bottom groove; 24. Fixing gear ring; 25. Uniform speed motor; 26. Support frame; 27. Gear; 28. Magnetic plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0027] Graphite separation equipment for lithium battery negative electrode sheets, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the assembly includes a housing 10, with a top plate 11 fixedly mounted on the top surface of the housing 10 by bolts, and a door 12 hinged to one side of the housing 10; a separation assembly, rotatably mounted at the bottom of the top plate 11, comprising a fixed gear ring 24, a support frame 26, a gear 27, and a magnetic plate 28, wherein the fixed gear ring 24 is fixedly mounted on the bottom surface of the top plate 11, the support frame 26 is rotatably mounted inside the fixed gear ring 24, the gear 27 is fixedly mounted above the magnetic plate 28, and the gear 27 and the magnetic plate 28 are rotatably mounted on the upper and lower sides of the support frame 26, respectively; and a screening assembly, movably mounted inside the housing 10, comprising a screening box 17, a fixed frame 18, and a bottom plate 21, wherein the fixed frame 18 is fixedly mounted on the top surface of the bottom plate 21, the screening box 17 is movably mounted inside the fixed frame 18, and the bottom plate 21 is rotatably mounted inside the housing 10.

[0028] Specifically, this device uses a separation component and a sieving component. The rotation formed by the gear 27 meshing with the fixed gear ring 24 drives the magnetic plate 28 to adsorb the metal powder in the receiving box 14. Then, the sieving component is used to sieve the graphite powder. In this way, larger, hard-to-break metal particles and smaller magnetic metal particles are sieved and left in the sieving box 17 or adsorbed by the magnetic plate 28, while smaller, non-magnetic graphite powder is separated out. This achieves effective separation of materials of different particle sizes, thereby ensuring the purity of the graphite powder and improving the separation efficiency of the device.

[0029] like Figure 1 and Figure 2 As shown, a pulverizing box 15 is fixedly installed on the top surface of the top plate 11, and an electric pulverizing blade 16 is installed inside the pulverizing box 15. A retaining edge 13 is fixedly installed on the inner wall of the housing 10, and a receiving box 14 is placed between the top plate 11 and the retaining edge 13; Figure 2 and Figure 4 As shown, a bottom groove 23 is provided on the inner bottom surface of the box 10. A high-speed motor 22 is fixedly installed in the bottom groove 23. The output end of the high-speed motor 22 is connected to the bottom surface of the bottom plate 21. An arc-shaped fixing frame 18 is fixedly connected to one end of the top surface of the bottom plate 21. The screening box 17 is snapped into the fixing frame 18.

[0030] Specifically, a blocking plate is provided at the bottom inner side of the housing 10. The blocking plate passes through the output end of the high-speed motor 22 and is located between the bottom plate 21 and the inner bottom surface of the housing 10. When in use, the material needs to be poured into the crushing box 15 first, and the electric crushing blade 16 is started. The electric crushing blade 16 rotates in the crushing box 15 to perform preliminary crushing of the material. The material after preliminary crushing enters the receiving box 14 and is separated by the internal separation component for magnetic separation. The bottom of the receiving box 14 has a round hole, and the bottom surface of the receiving box 14 is fixedly provided with an output pipe. The output pipe corresponds to the round hole, and the magnetically separated material reaches the screening component through the output pipe.

[0031] like Figure 3 As shown, a constant-speed motor 25 is fixedly installed on the top surface of the top plate 11. The output end of the constant-speed motor 25 is connected to the top surface of the support frame 26. The support frame 26 is an L-shaped structure composed of a cylinder and a long plate. The cylinder rotates within a fixed gear ring 24, and a gear 27 is rotatably positioned between the long plate and the top plate 11. The gear 27 meshes with and drives the fixed gear ring 24. Figure 2 and Figure 3 As shown, the magnetic plate 28 is rotatably positioned below the long plate, and the magnetic plate 28 rotates within the receiving box 14; as Figure 2 As shown, six slots 19 are symmetrically opened on both sides of the inner wall of the fixing frame 18. Three positioning grooves 20 are evenly opened on the inner wall of the fixing frame 18. The positioning grooves 20 are between two slots 19. A protrusion corresponding to the shape of the slot 19 is provided on each side of the screening box 17. An arc plate corresponding to the shape of the positioning groove 20 is fixedly provided on one side of the screening box 17. The screening box 17 is engaged in the slot 19 by the protrusion and engaged in the positioning groove 20 by the arc plate. There are three screening boxes 17, and the screen hole specifications of the three screening boxes 17 are different.

[0032] Specifically, a short column is fixedly installed between gear 27 and magnetic plate 28. The short column rotates within one end of the square plate of support frame 26. In use, first turn on the uniform speed motor 25 and high speed motor 22 respectively. First, pour the material into the crushing box 15, then start the electric crushing blade 16. The electric crushing blade 16 performs preliminary crushing of the material, which then enters the receiving box 14. At this time, the uniform speed motor 25 drives the support frame 26 to rotate, the support frame 26 drives the short column, and the short column drives the gear 27 and magnetic plate 28 to rotate. The gear 27 rotates around the fixed gear ring 24 while simultaneously transmitting power. At this time, the gear 27 drives the magnetic plate 28 to rotate within the square plate. The rotating magnetic plate 28... Metal materials in the receiving box 14 are magnetically adsorbed. The bottom of the receiving box 14 has a round hole. As the magnetic plate 28 rotates, it pushes the materials that cannot be adsorbed into the output pipe. The materials pass through the output pipe to the uppermost screening box 17. The uppermost screening box 17 has the largest aperture, the middle screening box 17 has a medium aperture, and the lower screening box 17 has the smallest aperture. The materials are screened and filtered through the screening box 17. Finally, the smaller graphite powder falls onto the top surface of the blocking plate. After collecting the graphite powder on the blocking plate, the screening box 17 is removed and the above separation operation is repeated. Finally, the top plate 11 is removed and the metal powder on the magnetic plate 28 is removed for collection.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A graphite separation device for lithium battery negative electrode sheets, characterized in that, include The box body (10) has a top plate (11) fixedly installed on its top surface by bolts, and a box door (12) is hinged to one side of the box body (10). The separation assembly is rotatably disposed at the bottom of the top plate (11). The separation assembly includes a fixed gear ring (24), a support frame (26), a gear (27), and a magnetic plate (28). The fixed gear ring (24) is fixedly disposed on the bottom surface of the top plate (11). The support frame (26) is rotatably disposed inside the fixed gear ring (24). The gear (27) is fixedly disposed above the magnetic plate (28). The gear (27) and the magnetic plate (28) are respectively rotatably disposed on the upper and lower sides of the support frame (26). The screening assembly is movably disposed within the housing (10). The screening assembly includes a screening box (17), a fixing frame (18), and a bottom plate (21). The fixing frame (18) is fixedly disposed on the top surface of the bottom plate (21). The screening box (17) is movably disposed within the fixing frame (18). The bottom plate (21) is rotatably disposed within the housing (10).

2. The lithium battery negative electrode graphite separation device according to claim 1, characterized in that, A crushing box (15) is fixedly installed on the top surface of the top plate (11), an electric crushing blade (16) is installed inside the crushing box (15), a retaining edge (13) is fixedly installed on the inner wall of the box body (10), and a receiving box (14) is placed between the top plate (11) and the retaining edge (13).

3. The lithium battery negative electrode graphite separation device according to claim 1, characterized in that, A constant speed motor (25) is fixedly installed on the top surface of the top plate (11). The output end of the constant speed motor (25) is connected to the top surface of the support frame (26). The support frame (26) is an L-shaped structure composed of a cylinder and a long plate. The cylinder rotates in the fixed gear ring (24). The gear (27) is rotatably set between the long plate and the top plate (11). The gear (27) meshes with the fixed gear ring (24) to drive it.

4. The lithium battery negative electrode graphite separation device according to claim 3, characterized in that, The magnetic plate (28) is rotatably disposed below the long plate, and the magnetic plate (28) rotates within the receiving box (14).

5. The lithium battery negative electrode graphite separation device according to claim 1, characterized in that, The bottom surface of the box (10) is provided with a bottom groove (23), and a high-speed motor (22) is fixedly installed in the bottom groove (23). The output end of the high-speed motor (22) is connected to the bottom surface of the base plate (21). An arc-shaped fixing frame (18) is fixedly connected to one end of the top surface of the base plate (21), and the screening box (17) is snapped into the fixing frame (18).

6. The lithium battery negative electrode graphite separation device according to claim 5, characterized in that, The inner wall of the fixing frame (18) is symmetrically provided with six slots (19) on both sides. The inner wall of the fixing frame (18) is evenly provided with three positioning grooves (20). The positioning grooves (20) are between two slots (19). The two sides of the screening box (17) are respectively provided with a protrusion corresponding to the shape of the slot (19). One side of the screening box (17) is fixedly provided with an arc plate corresponding to the shape of the positioning groove (20). The screening box (17) is engaged in the slot (19) by the protrusion. The screening box (17) is engaged in the positioning groove (20) by the arc plate. There are three screening boxes (17), and the three screening boxes (17) have different screen hole specifications.

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