High-efficiency recycling treatment equipment and method for lithium batteries

Abstract

The invention relates to the technical field of lithium battery recovery processing, and discloses efficient lithium battery recovery processing equipment and method.The efficient lithium battery recovery processing equipment comprises a receiving box and a sealing plate, the interior of the top end of the receiving box and the periphery of the sealing plate are fixedly installed, and a reciprocating limiting material pressing mechanism is arranged on the upper surface of the sealing plate. According to the efficient recycling treatment equipment and method for the lithium batteries, through the use of a first driving motor, a first transmission rod, a first belt wheel, a first transmission belt, a second belt wheel, a connecting shaft, a cam, a pressing block and other structures, continuous rotary driving can be converted into periodic downward pressure, and the batteries in the feeding hopper are forcibly compacted and pushed; an arch bridge structure formed by materials is effectively destroyed, and unstable feeding is converted into uniform and controllable intermittent feeding, so that the torque of the main shaft is prevented from being increased, the possibility of stuffy shutdown caused by overload is reduced, the production continuity is guaranteed, and impact abrasion to the crushing plate, the main shaft and a transmission system is also reduced.

Description

Technical Field

[0001] This invention relates to the field of lithium battery recycling technology, specifically to a high-efficiency lithium battery recycling equipment and method. Background Technology

[0002] Lithium-ion batteries are a type of high-efficiency, rechargeable energy storage device. They work by storing and releasing energy through the insertion and extraction of lithium ions between the positive and negative electrodes. With their significant advantages such as high energy density, low self-discharge rate, long cycle life, and no memory effect, lithium-ion batteries are the power source for portable electronic devices, new energy vehicles, and large-scale energy storage systems. As lithium-ion batteries are widely used, their recycling and disposal have become a key link in resource sustainability and environmental protection.

[0003] The current technology for recycling lithium batteries involves the efficient and safe recovery of valuable metals (such as lithium, cobalt, and nickel) from used batteries. The main process includes: firstly, pre-treatment steps such as discharge, disassembly, crushing, and sorting are used to separate the outer casing, copper and aluminum foil, and metal-rich black powder. Then, core technologies such as hydrometallurgy, pyrometallurgy, or direct regeneration are used to extract and purify the metals from the black powder, which are then reused to manufacture new batteries, alleviating the pressure on raw material supply and reducing environmental risks.

[0004] When feeding pre-treated batteries, they tend to accumulate at the feed inlet, causing them to suddenly collapse and rush into the shear crusher. This prevents reciprocating pressing feeding operations, which damages the arch structure of the batteries, making them denser and thus hindering feeding. Ultimately, this leads to a sudden increase in the torque of the crusher's main shaft, far exceeding the motor's rated load. This not only triggers electrical protection and causes belt slippage and wear, but also causes rotor jamming due to stress concentration, forcing an emergency shutdown of the production line. Furthermore, the huge impact load can cause hidden mechanical damage to the main shaft, bearings, and cutters, reducing the equipment's lifespan.

[0005] While this method can solve the problem of batteries accumulating at the feed inlet during loading, after the processed batteries are broken, some of the flexible copper and aluminum foils will not break into regular fragments. Instead, they will curl into dense metal spheres under the impact and shearing forces. These metal spheres contain a large amount of black powder, making subsequent sorting almost impossible. Furthermore, the large amount of black powder (rich in high-value materials such as lithium, cobalt, and nickel) inside the metal spheres cannot be separated from the metal foils and will be classified as waste or incorrectly sorted along with the metal spheres. This results in a serious loss of valuable metals and waste of resources, and will also seriously interfere with the sorting equipment, leading to substandard purity of copper and aluminum raw materials and a reduced black powder recovery rate. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a high-efficiency lithium battery recycling and processing equipment and method, which has the advantages of avoiding the arching phenomenon during feeding and avoiding the formation of metal spheres during discharging, thus solving the problems mentioned in the background art.

[0007] The present invention provides the following technical solution: a high-efficiency lithium battery recycling and processing equipment, including a receiving box and a sealing plate, wherein the inside of the top of the receiving box and the perimeter of the sealing plate are fixedly installed, and a reciprocating limiting and pressing mechanism is provided on the upper surface of the sealing plate. The power output end of the reciprocating pressing structure is provided with a power conversion mechanism that converts the driving force into lifting and reciprocating force. The power output end of the power conversion mechanism is provided with a limiting pressing mechanism that converts the lifting and reciprocating force into downward pressure. The limiting pressing mechanism performs reciprocating pressing operation on the arch bridge formed by the loading through the downward pressure. The reciprocating limiting and pressing mechanism is composed of a power conversion mechanism and a limiting and pressing mechanism.

[0008] Preferably, the power conversion mechanism includes a receiving block, a drive motor, a transmission rod, a pulley, a transmission belt, a second pulley, a connecting shaft, a rectangular plate, a cam, a roller, and a U-shaped block. The bottom of the receiving block is fixedly installed on the right side of the upper surface of the sealing plate. The outer surface of the drive motor is fixedly installed on the upper surface of the receiving block. One end of the transmission rod is fixedly connected to one end of the output shaft of the drive motor. The inside of the pulley is fixedly installed on the outer surface of the transmission rod. The inner ring of the transmission belt is drivenly connected to the outer surface of the pulley. The outer surface of the second pulley is drivenly connected to the inner ring of the transmission belt. The bottom of the rectangular plate is fixedly installed on the upper surface of the sealing plate. The outer surface of the connecting shaft is rotatably connected to the inner wall of the rectangular plate. The inside of the second pulley is fixedly installed on the outer surface of the connecting shaft. The inside of the cam is fixedly installed on the outer surface of the connecting shaft. The outer surface of the roller is in contact with the outer surface of the cam. The inside of the U-shaped block is rotatably connected to the outer surface of the inner shaft of the roller.

[0009] Preferably, the limiting and pressing mechanism includes a connecting spring, a telescopic rod, a convex plate, an extension plate, a limiting rod, a connecting frame, a horizontal plate, and a pressing block. One end of the extension plate is fixedly installed on the upper surface of the sealing plate. The inner wall of the limiting rod is slidably connected to the outer surface of the extension plate. One side of the convex plate is fixedly installed on one side of the limiting rod. One end of the connecting spring is fixedly installed on the upper surface of the convex plate. One end of the telescopic rod is fixedly installed on the upper surface of the connecting spring. The bottom of the connecting frame is fixedly installed on the upper surface of the convex plate. The bottom of the horizontal plate is fixedly installed on the top of the connecting frame. The upper surface of the pressing block is fixedly installed on the lower surface of the horizontal plate.

[0010] Preferably, the lower surface of the sealing plate is provided with a crushing mechanism, which performs a crushing operation on the metal by synchronous operation of driving force. The crushing mechanism includes a second transmission rod, a second rectangular plate, a third pulley, a second transmission belt, a fourth pulley, a transmission shaft, and a toothed roller. The bottom of the second rectangular plate is fixedly installed with the upper surface of the sealing plate. The outer surface of the second transmission rod is rotatably installed with the inner wall of the second rectangular plate. The inside of the third pulley is fixedly installed with one end of the second transmission rod. The inner ring of the second transmission belt is drivenly connected with the outer surface of the third pulley. The outer surface of the fourth pulley is drivenly connected with the inner ring of the second transmission belt. The outer surface of the transmission shaft is fixedly installed with the inside of the fourth pulley. The inside of the toothed roller is fixedly installed with the outer surface of the transmission shaft. A second discharge baffle is fixedly installed at the bottom of the receiving box.

[0011] Preferably, one end of the connecting spring is fixedly installed to the bottom of the U-shaped block, and one end of the telescopic rod is fixedly installed to the bottom of the U-shaped block.

[0012] Preferably, a receiving block two is fixedly installed on the left side of the upper surface of the sealing plate, and a drive motor two is fixedly installed on the upper surface of the receiving block two. One end of the output shaft of the drive motor two is fixedly installed with one end of the transmission rod two.

[0013] Preferably, a crushing box is fixedly installed on the inner ring of the sealing plate, a discharge baffle is fixedly installed on the bottom of the sealing plate, and fixed blocks are fixedly installed on both sides inside the crushing box.

[0014] Preferably, the outer surface of the transmission rod is uniformly and fixedly fitted with crushing plates.

[0015] Preferably, a feed hopper is fixedly installed on the upper surface of the crushing box, and the shape and size of the opening of the feed hopper are the same as the shape and size of the pressing block.

[0016] A method for efficient recycling and processing of lithium batteries includes the following specific steps: S1. The pre-treated lithium batteries are fed into the hopper. Then, the drive motor drives the cam to push the pressing block to periodically compact and push the batteries in the hopper, breaking the arch bridge structure and achieving stable feeding. After that, the crushing plate completes the initial crushing. S2. Next, the initially crushed material falls into the receiving box through the feeding baffle one. The drive motor two drives a pair of toothed rollers to rotate in opposite directions, applying shearing and kneading force to the curled copper and aluminum foil, tearing it open and releasing the black powder wrapped inside. S3. Then, the material is discharged. The mixture after crushing and de-agglomeration is discharged from the equipment through the second discharge baffle and enters the subsequent sorting process. S4. Finally, resource recycling is carried out. The discharged materials are separated and recycled through processes such as sorting and hydrometallurgy to recover valuable metals such as lithium, cobalt, and nickel, thereby realizing resource recycling.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This high-efficiency lithium battery recycling equipment, through the use of a drive motor, transmission rod, pulley, transmission belt, pulley, connecting shaft, cam, and pressing block, can convert continuous rotational drive into periodic downward pressure, forcibly compacting and pushing the batteries in the feed hopper. This effectively breaks the arch structure formed by the material, transforming unstable feeding into uniform and controllable intermittent feeding, thereby avoiding an increase in main shaft torque, reducing the possibility of machine stalling due to overload, ensuring production continuity, reducing impact wear on the crushing plate, main shaft, and transmission system, extending the service life of the entire equipment, and improving the stability and reliability of the crushing process.

[0018] 2. This high-efficiency lithium battery recycling equipment utilizes a differential shearing structure comprised of a transmission rod, a rectangular plate, a pulley, a transmission belt, a pulley, a transmission shaft, and toothed rollers. This structure effectively kneads and tears the crushed material, expanding the dense metal spheres and releasing the black powder encapsulated within. This reduces the mutual entrainment of copper and aluminum foil with high-value black powder, improving the degree of material dissociation. This provides higher-purity raw materials for subsequent sorting processes and directly increases the recovery rate of valuable metals such as lithium, cobalt, and nickel. It also reduces resource waste and enhances the economic benefits and resource recycling efficiency of the entire lithium battery recycling process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the right-side view structure; Figure 3 For the present invention Figure 1 A schematic diagram of the structure viewed from below; Figure 4 For the present invention Figure 1 A schematic diagram of the cross-sectional structure; Figure 5 For the present invention Figure 1 A schematic diagram of the rear view structure; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 For the present invention Figure 1 A cross-sectional structural diagram of the receiving box; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B.

[0020] In the diagram: 1. Receiving box; 2. Sealing plate; 3. Crushing box; 4. Feed hopper; 5. Receiving block one; 6. Drive motor one; 7. Transmission rod one; 8. Crushing plate; 9. Fixed stop block; 10. Discharge baffle one; 11. Belt pulley one; 12. Transmission belt one; 13. Belt pulley two; 14. Connecting shaft; 15. Rectangular plate one; 16. Cam; 17. Roller; 18. U-shaped block; 19. Connecting spring; 20. Telescopic rod; 21. Convex plate; 22. Extension plate; 23. Limiting rod; 24. Receiving block two; 25. Drive motor two; 26. Transmission rod two; 27. Rectangular plate two; 28. Belt pulley three; 29. ​​Transmission belt two; 30. Belt pulley four; 31. Transmission shaft; 32. Toothed roller; 33. Discharge baffle two; 34. Connecting frame; 35. Horizontal plate; 36. Pressing block. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1 , Figure 5 and Figure 6 A high-efficiency lithium battery recycling and processing device includes a receiving box 1 and a sealing plate 2. The inside of the top of the receiving box 1 and the perimeter of the sealing plate 2 are fixedly installed. A reciprocating limiting and pressing mechanism is provided on the upper surface of the sealing plate 2. The power output end of the reciprocating pressing structure is equipped with a power conversion mechanism that converts the driving force into lifting and reciprocating force. The power output end of the power conversion mechanism is equipped with a limiting pressing mechanism that converts the lifting and reciprocating force into downward pressure. The limiting pressing mechanism performs reciprocating pressing operation on the arch bridge formed by the loading through the downward pressure. The reciprocating limiting and pressing mechanism is composed of a power conversion mechanism and a limiting and pressing mechanism. The power conversion mechanism includes a receiving block 5, a drive motor 6, a transmission rod 7, a pulley 11, a transmission belt 12, a second pulley 13, a connecting shaft 14, a rectangular plate 15, a cam 16, a roller 17, and a U-shaped block 18. The bottom of the receiving block 5 is fixedly installed on the right side of the upper surface of the sealing plate 2. The outer surface of the drive motor 6 is fixedly installed on the upper surface of the receiving block 5. One end of the transmission rod 7 is connected to the drive motor 6. One end of the output shaft is fixedly connected. The inside of pulley 11 is fixedly installed with the outer surface of the transmission rod 7. The inner ring of the transmission belt 12 is connected to the outer surface of pulley 11. The outer surface of pulley 13 is connected to the inner ring of the transmission belt 12. The bottom of rectangular plate 15 is fixedly installed with the upper surface of sealing plate 2. The outer surface of connecting shaft 14 is rotatably connected to the inner wall of rectangular plate 15. The inside of pulley 13 is fixedly installed with the outer surface of connecting shaft 14. The inside of cam 16 is connected to connecting shaft 1... The outer surface of the 4 is fixedly installed, the outer surface of the roller 17 is in contact with the outer surface of the cam 16, the interior of the U-shaped block 18 is rotatably connected to the outer surface of the inner shaft of the roller 17, the limiting pressing mechanism includes a connecting spring 19, a telescopic rod 20, a convex plate 21, an extension plate 22, a limiting rod 23, a connecting frame 34, a horizontal plate 35 and a pressing block 36, one end of the extension plate 22 is fixedly installed with the upper surface of the sealing plate 2, the inner wall of the limiting rod 23 is slidably connected with the outer surface of the extension plate 22, and one side of the convex plate 21 is connected with the limiting rod One side of 23 is fixedly installed, one end of the connecting spring 19 is fixedly installed on the upper surface of the convex plate 21, one end of the telescopic rod 20 is fixedly installed on the upper surface of the connecting spring 19, the bottom of the connecting frame 34 is fixedly installed on the upper surface of the convex plate 21, the bottom of the horizontal plate 35 is fixedly installed on the top of the connecting frame 34, the upper surface of the pressure block 36 is fixedly installed on the lower surface of the horizontal plate 35, one end of the connecting spring 19 is fixedly installed on the bottom of the U-shaped block 18, and one end of the telescopic rod 20 is fixedly installed on the bottom of the U-shaped block 18.

[0023] Specifically, through the design of the reciprocating limiting and pressing mechanism, the power conversion mechanism transforms the driving force into a lifting and reciprocating force, which is then converted into downward pressure by the limiting and pressing mechanism. This reciprocating pressing operation compacts the arch formed by the feeding material. This reciprocating pressing method can more effectively compact the material in the lithium battery recycling process, making the material distribution more uniform, improving the efficiency and quality of lithium battery recycling, and facilitating more precise subsequent lithium battery dismantling, separation, and other recycling processes. In the power conversion mechanism, drive motor 6 serves as the power source, driving pulley 11 to rotate via transmission rod 7. The power is then smoothly transmitted to pulley 13 via transmission belt 12. Support block 5 provides a stable mounting base for drive motor 6, ensuring it won't shift due to vibration during operation, further improving the stability of power transmission. Rectangular plate 15 is rotatably connected to connecting shaft 14, providing stable support for connecting shaft 14 and allowing it to smoothly drive cam 16 to rotate. When connecting shaft 14 drives cam 16 to rotate, the contour curve of cam 16 causes the roller 17 in contact with it to reciprocate up and down. U-shaped block 18 is rotatably connected to the internal shaft of roller 17, ensuring smooth transmission of the reciprocating motion of roller 17 and guaranteeing flexibility and stability during movement. Furthermore, in the limiting and pressing mechanism, the extension plate 22 is slidably connected to the limiting rod 23, providing precise guidance for the movement of the convex plate 21. This ensures that the convex plate 21 can only move in a straight line along the direction of the limiting rod 23, thereby guaranteeing the accuracy of the pressing operation. The connecting spring 19 and the telescopic rod 20 play a role in buffering and stabilizing. When the U-shaped block 18 drives the connecting spring 19 and the telescopic rod 20 to move downwards, the connecting spring 19 can absorb part of the impact force, preventing the pressing block 36 from causing excessive impact on the material and damaging the material or equipment. At the same time, the telescopic rod 20 can ensure that the connecting spring 19 will not deviate during compression and extension, improving the stability of the entire limiting and pressing mechanism. The connecting frame 34 transmits the movement of the convex plate 21 to the horizontal plate 35, thereby enabling the pressing block 36 to perform a uniform and stable pressing operation on the material, effectively solving the arch bridge problem formed during feeding and improving the flatness and stability of material accumulation during lithium battery recycling.

[0024] Please see Figure 1 , Figure 7 and Figure 8A crushing mechanism is provided on the lower surface of the sealing plate 2. The crushing mechanism operates synchronously to crush the metal by driving rotation. The crushing mechanism includes a transmission rod 26, a rectangular plate 27, a pulley 28, a transmission belt 29, a pulley 30, a transmission shaft 31, and a toothed roller 32. The bottom of the rectangular plate 27 is fixedly installed to the upper surface of the sealing plate 2. The outer surface of the transmission rod 26 is rotatably installed to the inner wall of the rectangular plate 27. The inside of the pulley 38 is fixedly installed to one end of the transmission rod 26. The inner ring of the transmission belt 29 is connected to the belt... The outer surface of wheel 3 28 is connected to the transmission, the outer surface of pulley 4 30 is connected to the inner ring of transmission belt 2 29, the outer surface of transmission shaft 31 is fixedly installed with the inside of pulley 4 30, the inside of toothed roller 32 is fixedly installed with the outer surface of transmission shaft 31, the bottom of receiving box 1 is fixedly installed with discharge baffle 2 33, the left side of the upper surface of sealing plate 2 is fixedly installed with receiving block 2 24, the upper surface of receiving block 2 24 is fixedly installed with drive motor 2 25, and one end of the output shaft of drive motor 2 25 is fixedly installed with one end of transmission rod 2 26.

[0025] Specifically, the crushing mechanism is driven by a second drive motor 25, which in turn drives a third pulley 28 via a second transmission rod 26. The power is then transmitted to a fourth pulley 30 via a second transmission belt 29, which in turn drives the transmission shaft 31 and the toothed roller 32 to operate synchronously. This ensures that the toothed roller 32 receives stable and sufficient power for efficient metal crushing. The increased contact area and friction of the toothed roller 32 with the metal enable it to more effectively break the metal into smaller particles, improving the efficiency of metal recycling and facilitating subsequent metal separation and purification processes. Furthermore, the transmission belt 29 has a certain degree of elasticity, which can play a buffering role in the power transmission process, reduce the impact on the equipment caused by sudden torque changes, and extend the service life of the equipment. After the crushing operation is completed, the discharge baffle 233 can be adjusted to control the outflow speed and flow rate of metal particles, which facilitates subsequent collection and processing, and improves the automation level and operational convenience of the entire recycling process.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The inner ring of the sealing plate 2 is fixedly installed with a crushing box 3, the bottom of the sealing plate 2 is fixedly installed with a discharge baffle 10, the two sides inside the crushing box 3 are fixedly installed with fixed blocks 9, the outer surface of the transmission rod 7 is evenly distributed and fixedly installed with crushing plates 8, the upper surface of the crushing box 3 is fixedly installed with a feed hopper 4, and the opening shape and size of the feed hopper 4 are the same as the shape and size of the pressing block 36.

[0027] Specifically, the crushing plates 8 are evenly distributed and fixedly installed on the transmission rod 7. When the transmission rod 7 rotates, the crushing plates 8 will also perform circular motion, impacting and crushing the material entering the crushing box 3 from all directions and multiple angles. This ensures that the material can fully contact the crushing plates 8 within the crushing box 3, greatly improving crushing efficiency. It can quickly crush the material into smaller particles that meet the requirements of subsequent processing, laying a good foundation for subsequent separation, purification, and other processes in lithium battery recycling. Furthermore, the opening shape and size of the feed hopper 4 are the same as those of the pressing block 36. When the pressing block 36 moves downward to perform the pressing operation, it can accurately press the material into the crushing box 3 through the feed hopper 4, avoiding material spillage and waste, and ensuring that the amount of material entering the crushing box 3 each time is relatively stable, which is conducive to the stable progress of the crushing process. When the crushing plate 8 drives the material to move, the fixed block 9 can block the direction of material movement, so that the material is subjected to stronger compression and impact between the crushing plate 8 and the fixed block 9, further enhancing the crushing effect. At the same time, the fixed block 9 can also prevent the material from being excessively scattered during the crushing process, ensuring the concentrated crushing of the material in the crushing box 3, and improving the crushing efficiency and quality.

[0028] A method for efficient recycling and processing of lithium batteries includes the following specific steps: S1. The pre-treated lithium batteries are fed into the feed hopper 4. Then, the drive motor 6 drives the cam 16 to push the pressing block 36 to periodically compact and push the batteries in the feed hopper 4, breaking the arch bridge structure and achieving stable feeding. After that, the crushing plate 8 completes the initial crushing. S2. Next, the initially crushed material falls into the receiving box 1 through the feeding baffle 10. The drive motor 25 drives a pair of toothed rollers 32 to rotate in opposite directions, applying shearing and kneading force to the curled copper and aluminum foil, tearing it open and releasing the black powder wrapped inside. S3. Then, the material is discharged. The mixture after crushing and de-agglomeration is discharged from the equipment through discharge baffle 2 33 and enters the subsequent sorting process. S4. Finally, resource recycling is carried out. The discharged materials are separated and recycled through processes such as sorting and hydrometallurgy to recover valuable metals such as lithium, cobalt, and nickel, thereby realizing resource recycling.

[0029] Specifically, this efficient lithium battery recycling method organically combines steps such as feeding, compaction and pushing, preliminary crushing, de-agglomeration, discharge, and resource recovery, forming a complete and collaborative processing system. Each step cooperates and promotes each other, ensuring a stable supply and uniform processing of materials, effectively releasing valuable substances in the intermediate stages, and finally achieving comprehensive resource recovery.

[0030] Working principle: During use, pre-treated waste batteries are fed into the feed hopper 4. Driven by an external power source, the drive motor 6 is activated, causing the transmission rod 7, its pulley 11, and the crushing plate 8 to rotate. Power is transmitted to the pulley 13 via the transmission belt 12, which in turn drives the connecting shaft 14 and its cam 16 to rotate. The rotation of the cam 16 is converted into a periodic pressing and releasing action on the connecting spring 19 and the telescopic rod 20 via the roller 17 and U-shaped block 18. This action causes the convex plate 21 to perform precise lifting and reciprocating motion along the limiting rod 23, ultimately causing the pressing block 36, fixed to the end of the connecting frame 34, to compact the batteries in the feed hopper 4, breaking up the material arch and achieving stable and uniform forced feeding. This effectively prevents collapse and influx, and the evenly pushed batteries immediately fall into the ground. The material enters the crushing chamber, which consists of a crushing box 3 and a rotating crushing plate 8, for preliminary crushing. The mixture containing black powder and curled metal foil falls through the discharge baffle 10. At this time, the drive motor 25 drives the transmission rod 26 and the pulley 38 to rotate. The power is transmitted to the pulley 40 via the transmission belt 29, which drives the transmission shaft 31 and its pair of toothed rollers 32 to rotate in opposite directions. The material falls between the pair of toothed rollers 32 and is subjected to strong shearing and kneading forces, which can effectively tear and flatten the flexible metal foil that has been curled into a ball, releasing the black powder inside and completing the de-clumping and refining process. After the de-clumping process, the material is finally discharged from the equipment through the discharge baffle 23 and enters the subsequent sorting process, thus realizing a highly efficient and continuous operation from feeding to pre-treatment.

[0031] It should be noted that the electrical components and equipment mentioned above all use external power sources. The circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The scope of protection of this invention does not involve improvements to the internal structure and methods. Furthermore, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency lithium battery recycling and processing device, characterized in that: It includes a receiving box (1) and a sealing plate (2). The inside of the top of the receiving box (1) and the periphery of the sealing plate (2) are fixedly installed. The upper surface of the sealing plate (2) is provided with a reciprocating limiting and pressing mechanism. The power output end of the reciprocating pressing structure is provided with a power conversion mechanism that converts the driving force into lifting and reciprocating force. The power output end of the power conversion mechanism is provided with a limiting pressing mechanism that converts the lifting and reciprocating force into downward pressure. The limiting pressing mechanism performs reciprocating pressing operation on the arch bridge formed by the loading through the downward pressure. The reciprocating limiting and pressing mechanism is composed of a power conversion mechanism and a limiting and pressing mechanism.

2. The high-efficiency lithium battery recycling and processing equipment according to claim 1, characterized in that: The power conversion mechanism includes a receiving block (5), a drive motor (6), a transmission rod (7), a pulley (11), a transmission belt (12), a pulley (13), a connecting shaft (14), a rectangular plate (15), a cam (16), a roller (17), and a U-shaped block (18). The bottom of the receiving block (5) is fixedly installed on the right side of the upper surface of the sealing plate (2). The outer surface of the drive motor (6) is fixedly installed on the upper surface of the receiving block (5). One end of the transmission rod (7) is fixedly connected to one end of the output shaft of the drive motor (6). The inside of the pulley (11) is fixedly installed on the outer surface of the transmission rod (7). The transmission belt... The inner ring of the first (12) is connected to the outer surface of the first (11) pulley, the outer surface of the second (13) pulley is connected to the inner ring of the first (12) pulley, the bottom of the first (15) rectangular plate is fixedly installed to the upper surface of the sealing plate (2), the outer surface of the connecting shaft (14) is rotatably connected to the inner wall of the first (15) rectangular plate, the interior of the second (13) pulley is fixedly installed to the outer surface of the connecting shaft (14), the interior of the cam (16) is fixedly installed to the outer surface of the connecting shaft (14), the outer surface of the roller (17) is in contact with the outer surface of the cam (16), and the interior of the U-shaped block (18) is rotatably connected to the outer surface of the inner shaft of the roller (17).

3. The high-efficiency lithium battery recycling and processing equipment according to claim 1, characterized in that: The limiting and pressing mechanism includes a connecting spring (19), a telescopic rod (20), a convex plate (21), an extension plate (22), a limiting rod (23), a connecting frame (34), a horizontal plate (35), and a pressing block (36). One end of the extension plate (22) is fixedly installed on the upper surface of the sealing plate (2). The inner wall of the limiting rod (23) is slidably connected to the outer surface of the extension plate (22). One side of the convex plate (21) is fixedly installed on one side of the limiting rod (23). One end of the connecting spring (19) is fixedly installed on the upper surface of the convex plate (21). One end of the telescopic rod (20) is fixedly installed on the upper surface of the connecting spring (19). The bottom of the connecting frame (34) is fixedly installed on the upper surface of the convex plate (21). The bottom of the horizontal plate (35) is fixedly installed on the top of the connecting frame (34). The upper surface of the pressing block (36) is fixedly installed on the lower surface of the horizontal plate (35).

4. The high-efficiency lithium battery recycling and processing equipment according to claim 1, characterized in that: The lower surface of the sealing plate (2) is provided with a crushing mechanism, which performs a crushing operation on the metal by synchronously operating the driving force. The crushing mechanism includes a second transmission rod (26), a second rectangular plate (27), a third pulley (28), a second transmission belt (29), a fourth pulley (30), a transmission shaft (31), and a toothed roller (32). The bottom of the second rectangular plate (27) is fixedly installed on the upper surface of the sealing plate (2), and the outer surface of the second transmission rod (26) is rotatably installed on the inner wall of the second rectangular plate (27). The inner side of pulley three (28) is fixedly installed with one end of transmission rod two (26). The inner ring of transmission belt two (29) is connected to the outer surface of pulley three (28). The outer surface of pulley four (30) is connected to the inner ring of transmission belt two (29). The outer surface of transmission shaft (31) is fixedly installed with the inner side of pulley four (30). The inner side of toothed roller (32) is fixedly installed with the outer surface of transmission shaft (31). The bottom of receiving box (1) is fixedly installed with discharge baffle two (33).

5. The high-efficiency lithium battery recycling and processing equipment according to claim 3, characterized in that: One end of the connecting spring (19) is fixedly installed to the bottom of the U-shaped block (18), and one end of the telescopic rod (20) is fixedly installed to the bottom of the U-shaped block (18).

6. The high-efficiency lithium battery recycling and processing equipment according to claim 1, characterized in that: A receiving block two (24) is fixedly installed on the left side of the upper surface of the sealing plate (2), and a drive motor two (25) is fixedly installed on the upper surface of the receiving block two (24). One end of the output shaft of the drive motor two (25) is fixedly installed with one end of the transmission rod two (26).

7. The high-efficiency lithium battery recycling and processing equipment according to claim 1, characterized in that: The inner ring of the sealing plate (2) is fixedly installed with a crushing box (3), the bottom of the sealing plate (2) is fixedly installed with a discharge baffle (10), and both sides of the inside of the crushing box (3) are fixedly installed with fixed blocks (9).

8. The high-efficiency lithium battery recycling and processing equipment according to claim 2, characterized in that: The outer surface of the transmission rod (7) is uniformly and fixedly equipped with crushing plates (8).

9. The high-efficiency lithium battery recycling and processing equipment according to claim 7, characterized in that: The upper surface of the crushing box (3) is fixedly equipped with a feed hopper (4), and the shape and size of the opening of the feed hopper (4) are the same as the shape and size of the pressing block (36).

10. A method for efficient recycling and processing of lithium batteries, characterized in that, The specific steps include the following: S1. The pre-treated lithium batteries are fed into the feed hopper (4). Then, the drive motor (6) drives the cam (16) to push the pressing block (36) to periodically compact and push the batteries in the feed hopper (4), destroying the arch bridge structure and achieving stable feeding. After that, the crushing plate (8) completes the initial crushing. S2. Next, the initially crushed material falls into the receiving box (1) through the feeding baffle (10). The drive motor (25) drives a pair of toothed rollers (32) to rotate in opposite directions, applying shearing and kneading force to the rolled copper and aluminum foil, tearing it open and releasing the black powder wrapped inside. S3. Then, the material is discharged. The mixture after crushing and de-agglomeration is discharged from the equipment through the discharge baffle (33) and enters the subsequent sorting process. S4. Finally, resource recycling is carried out. The discharged materials are separated and recycled through processes such as sorting and hydrometallurgy to recover valuable metals such as lithium, cobalt, and nickel, thereby realizing resource recycling.

Images