A new energy vehicle waste lithium battery wet recovery treatment equipment

Abstract

This invention belongs to the technical field of waste lithium battery recycling and processing equipment, specifically a wet recycling and processing equipment for waste lithium batteries from new energy vehicles. It includes a recycling cylinder fixedly connected to an external connector. The recycling cylinder is connected to a first liquid supply system for assisting battery discharge and a second liquid supply system for assisting in the stripping of active materials inside the battery. An ultrasonic module for stripping active materials is fixedly connected to the bottom of the inner wall of the recycling cylinder. A discharge port communicating with the inner cavity is opened on the outer wall near the middle of the recycling cylinder, and a sealing door is rotatably connected to the discharge port. This invention simplifies the operation steps and improves the recycling efficiency by performing discharge and stripping of active materials inside the recycling cylinder, utilizing related components in conjunction with the first and second liquid supply systems. It also solves the problem of leakage during battery transfer after puncture.

Description

Technical Field

[0001] This invention belongs to the technical field of waste lithium battery recycling and processing equipment, specifically a wet recycling and processing equipment for waste lithium batteries from new energy vehicles. Background Technology

[0002] With the rapid development of the new energy industry, the application of lithium-ion batteries is becoming increasingly widespread, leading to a sharp increase in the number of retired lithium batteries. Retired lithium batteries contain various valuable metal resources such as lithium, cobalt, and nickel. Achieving their efficient recycling and utilization can not only alleviate the pressure of mineral resource shortages but also reduce the environmental risks caused by the indiscriminate disposal of used batteries, which is of great significance for promoting the sustainable development of the industry.

[0003] In the wet recycling process of lithium batteries, to ensure the safety of subsequent dismantling and stripping operations, retired lithium batteries must first be discharged to completely release any remaining charge. Currently, the commonly used discharge methods in the industry include puncture discharge, which involves piercing the battery casing with a puncture needle to damage the internal structure and achieve rapid discharge. After discharge, the battery needs to be transferred to specialized stripping equipment for stripping. However, this existing step-by-step "discharge-transfer-stripping" operation mode has significant technical drawbacks. The most prominent problem is that during the transfer of the battery between the discharge and stripping equipment, pollutant leakage is highly likely, causing serious environmental hazards and safety risks.

[0004] Existing wet recycling equipment for waste lithium batteries from new energy vehicles requires separate operations of discharging, transferring, and stripping during the wet recycling process. This separate operation of multiple devices can easily lead to the risk of pollutant leakage during the transfer of broken waste batteries, causing pollution to the surrounding environment and endangering human health. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a wet recycling and processing device for spent lithium batteries from new energy vehicles. This invention primarily addresses the problem that existing wet recycling and processing equipment for spent lithium batteries from new energy vehicles requires sequential discharge, transfer, and stripping operations during the wet recycling process. This multi-stage operation of multiple devices can easily lead to the risk of pollutant leakage during the transfer of broken spent batteries, causing environmental pollution and harm to human health.

[0006] The technical solution adopted by this invention to solve its technical problem is: a wet recycling and processing device for waste lithium batteries from new energy vehicles, comprising:

[0007] A recovery cylinder is fixedly connected to an external connector. The recovery cylinder is connected to a first liquid supply system for assisting battery discharge and a second liquid supply system for assisting in the stripping of active materials inside the battery. An ultrasonic module for stripping active materials inside the battery is fixedly connected to the bottom of the inner wall of the recovery cylinder. A discharge port communicating with the inner cavity is opened on the outer wall near the middle of the recovery cylinder, and a sealing door is rotatably connected to the discharge port. A piercing assembly for breaking the battery casing is installed on the top of the recovery cylinder. The piercing assembly includes a first electric push rod fixedly connected to the top of the recovery cylinder and multiple first guide rods penetrating and connecting the top of the recovery cylinder. The bottom end of the push rod output shaft penetrates through the top of the recycling cylinder and is fixedly connected to a first insulating plate together with the bottom ends of multiple first guide rods. Multiple piercing heads are evenly distributed at the bottom of the first insulating plate. A support assembly for loading batteries is installed at the bottom of the recycling cylinder. The support assembly includes a third electric push rod fixedly connected to the bottom of the recycling cylinder and multiple second guide rods penetrating through the bottom of the recycling cylinder. The top end of the third electric push rod output shaft penetrates through the top of the recycling cylinder and is fixedly connected to a second insulating plate together with the top ends of multiple second guide rods. A conductive seat is installed on the top of the second insulating plate, and the conductive seat integrates positive and negative conductive contacts.

[0008] Furthermore, the first liquid supply system includes two electrolyte circulation pipes connected to the recovery cylinder, and the two electrolyte circulation pipes are fixedly connected to the side wall of the recovery cylinder near the bottom. The ends of the two electrolyte circulation pipes away from the recovery cylinder are respectively connected to the inlet and outlet of the electrolyte circulation system. The second liquid supply system includes two stripping liquid circulation pipes connected to the recovery cylinder. The ends of the two stripping liquid circulation pipes away from the recovery cylinder are connected to a solution cylinder. A water pump and a water valve are connected to the two stripping liquid circulation pipes located between the recovery cylinder and the solution cylinder. A filter layer is fixedly connected to the inner wall of the solution cylinder near the top.

[0009] Furthermore, a sealing plate is fixedly connected to the inner wall of the recycling cylinder above the discharge port. The sealing plate has parallel strip-shaped narrow grooves and rectangular wide grooves. A first motor and a fixed base are fixedly connected to the sealing plate on the side of the strip-shaped narrow groove away from the rectangular wide groove. A fixed shaft is fixedly connected to the fixed base. A main gear is concentrically fixed on the output shaft of the first motor. The main gear meshes with a secondary gear, and the secondary gear is rotatably connected to the fixed shaft on the fixed base. A first transmission wheel is fixedly connected to the side of the main gear and the secondary gear opposite to the strip-shaped narrow groove. Rotating rods are respectively connected through the two ends of the inner wall of the side of the strip-shaped narrow groove opposite to the rectangular wide groove. The end of the rotating rod away from the strip-shaped narrow groove is rotatably connected to the inner wall of the rectangular wide groove. A second transmission wheel is concentrically fixed to the ends of the two rotating rods located in the strip-shaped narrow groove. A transmission belt is sleeved on the two second transmission wheels and the two adjacent first transmission wheels. A rotating plate is fixedly connected through the two rotating rods located in the rectangular wide groove. A protective cover is fixedly connected to the lower surface of the sealing plate directly below the strip-shaped narrow groove.

[0010] Furthermore, the upper surfaces of the two rotating plates at adjacent ends are each provided with an inclined surface.

[0011] Furthermore, the puncture head includes a plurality of evenly distributed second electric push rods and puncture probes. The second electric push rods are fixedly connected to the lower surface of the first insulating plate and connected to an external controller. The puncture probes are fixedly connected to the bottom end of the output shaft of the second electric push rods.

[0012] Furthermore, there are two ultrasonic modules, symmetrically arranged on both sides of the conductive base. Connecting rods are fixedly connected to the upper surfaces of both ends of the ultrasonic modules. Multiple vibration strips are fixedly connected to two adjacent connecting rods, and the multiple vibration strips are vertically and evenly distributed. The height of the uppermost vibration strip is higher than the height of the upper surface of the battery.

[0013] Furthermore, a hollow guide ring is fixedly connected to the inner wall of the recovery cylinder near the bottom of the sealed compartment door. Two symmetrically arranged connecting pipes are fixedly connected to the hollow guide ring, with each connecting pipe located at one end of the same diameter on the hollow guide ring. A rotating sleeve is fitted onto the top of each connecting pipe. A semi-circular swing bar, matching the semi-circular contour of the inner wall of the hollow guide ring, is positioned between the two rotating sleeves. Both ends of the semi-circular swing bar are fixedly fitted onto the outer wall of the rotating sleeve. A second motor, fixedly connected to the inner wall of the recovery cylinder, is located above each of the two rotating sleeves. Both motors are electrically connected to an external controller. The bottom end of the output shaft of the second motor is inserted and fixed to the top of the corresponding rotating sleeve. The second motor is fitted with an isolation cover that is fixedly connected to the recovery cylinder. A liquid level sensor is fixedly connected to the outer wall of one of the isolation covers, and the liquid level sensor is electrically connected to an external sensor. The bottom end of the liquid level sensor is lower than the upper surface of the semi-circular swing bar. A blocking ring is fixedly connected to the lower surface of the hollow guide ring, and the inner wall of the blocking ring is in close contact with the outer surface of the semi-circular swing bar. The lower surface of the hollow guide ring is also provided with an annular inclined groove that slopes towards the inner wall of the recovery cylinder.

[0014] Furthermore, a right-angle groove adapted to its length is provided on one side of the semi-circular swing bar, and multiple elastic metal ribs are provided through the semi-circular swing bar.

[0015] Furthermore, the end of the semi-circular swing bar and the side wall of the rotating sleeve are both provided with corresponding first guide holes, and the two first guide holes are concentrically arranged. The connecting pipe is provided with a second guide hole on the side wall opposite to the first guide hole. The bottom end of the connecting pipe is connected to the guide pipe, and the guide pipe is connected to the external recycling system.

[0016] Furthermore, the stripping fluid circulation pipe located above is connected to a water outlet pipe at the bottom of one end inside the recovery cylinder. The bottom end of the water outlet pipe passes through a hollow guide ring and is connected to the inner cavity of the hollow guide ring. A blocking ring is fixedly connected to the lower surface of the hollow guide ring, and the inner wall of the blocking ring is in close contact with the outer surface of the semi-circular swing bar. An annular groove inclined towards the inner wall of the recovery cylinder is also opened on the lower surface of the hollow guide ring.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This invention simplifies the operation steps and improves the recycling efficiency by discharging and stripping active materials within the recycling cylinder and utilizing related components in conjunction with the first and second liquid supply systems. It also solves the problem of leakage during battery transfer after puncture. By combining the different operations of battery discharge and stripping into a single container for centralized processing, it directly addresses the issue of internal contaminants leaking into the external environment when punctured batteries are transferred between two different operating devices, thus preventing environmental pollution. This significantly improves the safety of the wet battery recycling process, while the elimination of the need for transfer operations greatly enhances the efficiency of wet battery recycling.

[0019] 2. In this invention, the output shaft of the first motor drives the main gear and the first transmission wheel to rotate, which in turn drives the secondary gear meshing with the main gear to rotate. At this time, the rotation directions of the main gear and the secondary gear are opposite, so that the two first transmission wheels fixedly connected to the main gear and the secondary gear rotate in opposite directions. The first transmission wheel and the second transmission wheel are connected by a transmission belt, so that the second transmission wheel rotates in the same direction as the corresponding first transmission wheel. The second transmission wheel drives the rotating rod fixedly connected to it to rotate, which in turn drives the two rotating plates to rotate. When the two rotating plates are open, the piercing assembly can pass through the rectangular wide slot on the closed plate to move freely up and down and pierce the battery casing. When the two rotating plates are closed, the piercing assembly after resetting can be sealed and isolated to prevent the stripping fluid from splashing onto the piercing assembly and causing contamination and damage to the second electric push rod and piercing probe on the piercing assembly. The protective cover fixedly connected to the lower surface of the closed plate can further seal and protect the bottom of the narrow strip groove, preventing the stripping fluid from splashing onto the piercing assembly through the narrow strip groove and improving the protection effect of the piercing assembly.

[0020] 3. This invention activates two second motors, whose output shafts drive rotating sleeves to rotate. When the two rotating sleeves rotate in opposite directions, the semi-circular oscillating strip, fixedly connected to the two rotating sleeves, deforms from one side of the hollow guide ring's inner wall to the other under the pressure of the two opposing directions. During this process, because the upper surface of the semi-circular oscillating strip is higher than the surface of the stripping liquid, and the bottom of the semi-circular oscillating strip is below the surface of the stripping liquid, the semi-circular oscillating strip pushes the active substances floating on the liquid surface to accumulate from one side to the other as it moves through deformation. This reduces the floating area of ​​the active substances on the surface of the stripping liquid and pushes the originally floating and diffused active substances to one side. This facilitates subsequent centralized collection. Since the connecting tube has a second guide hole on its side wall opposite to the first guide hole, when the semi-circular swing bar is not deformed, the inner wall of the rotating sleeve seals the first guide hole on the connecting tube. When the semi-circular swing bar deforms, the rotating sleeve fixedly connected to it will rotate to the other side, causing the second guide hole to overlap with the first guide hole. At this time, the active substances floating on the surface are pushed by the semi-circular swing bar to gather on one side of the first guide hole, allowing these active substances to enter the first guide hole from the second guide hole, and finally enter the external receiving and collecting system through the connecting tube and the guide tube for collection, thus achieving centralized collection of active substances floating on the surface of the stripping liquid. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the top of the closed plate in this invention;

[0025] Figure 4 This is a schematic diagram of the structure at the bottom of the closed plate in this invention;

[0026] Figure 5 This is a schematic diagram of the horizontal cross-sectional structure of the hollow guide ring in this invention;

[0027] Figure 6 This is a vertical cross-sectional view of the hollow guide ring in this invention.

[0028] Figure 7 This is a schematic diagram of the structure at the connecting pipe in this invention;

[0029] Figure 8 This is a cross-sectional view of the semi-circular swing bar and elastic metal rib in this invention.

[0030] Figure 9 This is a schematic diagram of the structure of the ultrasonic module in this invention.

[0031] In the diagram: 1. Recovery cylinder; 11. Electrolyte circulation pipe; 12. Solution cylinder; 13. Filter layer; 14. Stripping fluid circulation pipe; 15. Water pump; 16. Water valve; 17. Water outlet pipe; 18. Sealed chamber door; 2. Puncture assembly; 21. First electric actuator; 22. First guide rod; 23. First insulating plate; 24. Puncture head; 25. Second electric actuator; 26. Puncture probe; 3. Support assembly; 31. Third electric actuator; 32. Second guide rod; 33. Second insulating plate; 34. Conductive seat; 4. Ultrasonic module; 41. Connecting rod; 42. Vibration strip; 5. Sealing plate; 51. Narrow strip groove; 5 11. Protective cover; 52. Rectangular wide groove; 53. First motor; 54. Main gear; 55. Secondary gear; 551. Fixed base; 56. First transmission wheel; 57. Transmission belt; 58. Second transmission wheel; 59. Rotating rod; 591. Rotating plate; 6. Hollow guide ring; 61. Connecting pipe; 611. Guide pipe; 612. Blocking ring; 62. Rotating sleeve; 63. Semi-circular swing bar; 631. Elastic metal rib; 64. First guide hole; 641. Second guide hole; 65. Second motor; 66. Isolation cover; 67. Liquid level sensor; 7. First liquid supply system; 8. Second liquid supply system. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] Example 1

[0034] like Figures 1-9 As shown, a wet recycling and processing device for waste lithium batteries from new energy vehicles includes:

[0035] A recycling cylinder 1 is fixedly connected to an external connector. The recycling cylinder 1 is connected to a first liquid supply system 7 for assisting battery discharge and a second liquid supply system 8 for assisting in the stripping of active materials inside the battery. An ultrasonic module 4 for stripping active materials inside the battery is fixedly connected to the bottom of the inner wall of the recycling cylinder 1. A discharge port communicating with the inner cavity is opened on the outer wall near the middle of the recycling cylinder 1, and a sealing door 18 is rotatably connected to the discharge port. A piercing assembly 2 for breaking the battery casing is installed on the top of the recycling cylinder 1. The piercing assembly 2 includes a first electric push rod 21 fixedly connected to the top of the recycling cylinder 1 and multiple first guide rods 22 penetrating and connecting the top of the recycling cylinder 1. The bottom end of the output shaft of the first electric push rod 21 penetrates the top of the recycling cylinder 1 and is fixed together with the bottom ends of the multiple first guide rods 22. A first insulating plate 23 is fixedly connected to the bottom of the first insulating plate 23, and a plurality of evenly distributed piercing heads 24 are installed at the bottom of the first insulating plate 23. A support assembly 3 for loading batteries is installed at the bottom of the recovery cylinder 1. The support assembly 3 includes a third electric push rod 31 fixedly connected to the bottom of the recovery cylinder 1 and a plurality of second guide rods 32 penetrating and connecting to the bottom of the recovery cylinder 1. The top end of the output shaft of the third electric push rod 31 penetrates the top of the recovery cylinder 1 and is fixedly connected to a second insulating plate 33 together with the top ends of the plurality of second guide rods 32. A conductive seat 34 is installed on the top of the second insulating plate 33, and the conductive seat 34 integrates positive and negative conductive contacts. Electrolyte and stripping fluid are injected into the recovery cylinder 1 by controlling the first liquid supply system 7 and the second liquid supply system 8 respectively, and cooperate with the piercing assembly 2 and the support assembly 3. The batteries entering the recycling cylinder 1 are discharged and stripped sequentially to avoid the leakage of pollutants into the external environment during battery transfer after discharge, thus preventing environmental pollution. Concentrating the discharge and stripping operations within the recycling cylinder 1 not only avoids the leakage risk during discharge, stripping, and transfer but also significantly improves the efficiency of wet battery recycling. Specifically, the first liquid supply system 7 injects electrolyte into the recycling cylinder 1 through the electrolyte circulation pipe 11, maintaining the liquid level at a suitable height. Then, the output shaft of the third electric push rod 31 drives the conductive seat 34 to rise to the discharge port. Next, the sealed chamber door 18 is opened, and the batteries to be recycled are placed on the conductive seat 34 through the discharge port. The positive electrode of the battery... The battery's tab contacts the positive conductive contact of the conductive base 34, and the battery's negative tab contacts the negative conductive contact of the conductive base 34, thus forming a closed discharge circuit. Then, the output shaft of the third electric push rod 31 is controlled to descend, causing the conductive base 34 and the battery to be immersed in the electrolyte for continuous discharge. Subsequently, the output shaft of the first electric push rod 21 is controlled to move the first insulating plate 23 and the piercing head 24 downwards, ultimately piercing the battery casing through the piercing head 24. This creates a stripping channel for subsequent removal of the active material inside the battery and improves the battery's stability during discharge. The injected electrolyte is compatible with the battery's internal electrolyte, and the piercing channel promotes the penetration of external electrolyte to replenish internal electrolyte loss, thus maintaining lithium-ion migration efficiency.To delay the increase in internal resistance during discharge, the puncture head 24 remains pierced through the battery casing until the discharge ends. After the battery is fully discharged, the output shaft of the first electric push rod 21 drives the first insulating plate 23 and the puncture head 24 to rise and reset, facilitating the subsequent stripping process. Active materials can quickly emerge from these puncture channels. After the puncture head 24 resets, the first liquid supply system 7 is controlled to remove the electrolyte from the recovery cylinder 1. Once the electrolyte in the recovery cylinder 1 is completely removed, the second liquid supply system 8 is controlled to inject the stripping fluid into the recovery cylinder 1. Simultaneously, the ultrasonic module 4 is activated for ultrasonic vibration. The stripping fluid here is a surfactant. The adhesive on the surface of the active material inside the recycling cylinder 1 is dissolved, allowing the active material to be broken into powder and expelled from the puncture channels on the battery casing under the continuous ultrasonic vibration of the ultrasonic module 4. The working time of the ultrasonic module 4 is set to ensure that the active material inside the battery can be fully stripped out. After the active material is completely stripped out, the second liquid supply system 8 is controlled to pump out the stripping liquid from the recycling cylinder 1. Finally, the third electric push rod 31 is controlled to drive the second insulating plate 33 to rise again, so that the conductive seat 34 holds the battery back at the discharge port, making it convenient for technicians to remove the stripped battery and proceed with the discharge stripping of the next battery.

[0036] The first liquid supply system 7 includes two electrolyte circulation pipes 11 connected to the recovery cylinder 1, and the two electrolyte circulation pipes 11 are fixedly connected to the side wall of the recovery cylinder 1 near the bottom. The ends of the two electrolyte circulation pipes 11 away from the recovery cylinder 1 are respectively connected to the inlet and outlet of the electrolyte circulation system. The second liquid supply system 8 includes two stripping liquid circulation pipes 14 connected to the recovery cylinder 1. The ends of the two stripping liquid circulation pipes 14 away from the recovery cylinder 1 are connected to a solution cylinder 12. A water pump 15 and a water valve 16 are connected to the two stripping liquid circulation pipes 14 located between the recovery cylinder 1 and the solution cylinder 12. A filter layer 13 is fixedly connected to the inner wall of the solution cylinder 12 near the top to prevent the stripping liquid from flowing out. To mitigate the risk of leakage, the water pumps 15 and water valves 16 on the two stripping fluid circulation pipes 14 are installed in opposite directions. The two water valves 16 are respectively located at the end of the lower stripping fluid circulation pipe 14 near the recovery cylinder 1 and at the end of the upper stripping fluid circulation pipe 14 near the solution cylinder 12. This arrangement ensures that the stripping fluid will not leak from the stripping fluid circulation pipes 14 and water pumps 15, whether it is stored in the recovery cylinder 1 or the solution cylinder 12, thus improving the sealing effect during stripping fluid storage. At the same time, the filter layer 13 is set to filter the stripping fluid recovered from the recovery cylinder 1, thereby filtering out the active substances suspended in the stripping fluid for subsequent collection.

[0037] The aforementioned ultrasonic module 4 includes an ultrasonic generator and an ultrasonic transmitter, as well as related components for ultrasonic ablation.

[0038] Example 2

[0039] As a further improvement to Example 1, such as Figure 2 , Figure 5 , Figure 6 and Figure 9 As shown, the puncture head 24 includes multiple evenly distributed second electric push rods 25 and puncture probes 26. The second electric push rods 25 are fixedly connected to the lower surface of the first insulating plate 23 and connected to an external controller. The puncture probes 26 are fixedly connected to the bottom end of the output shaft of the second electric push rods 25. The external controller can pre-determine the position and height of the electrodes inside different types of lithium batteries and control the multiple second electric push rods 25 in the puncture assembly 2 to adjust the extension amount according to the electrode arrangement position and height of the corresponding type of lithium battery before descending. This achieves precise puncture of the lithium battery casing without damaging the battery electrodes and affecting the normal discharge of the battery. It ensures that the battery casing is punctured to the maximum extent under normal discharge conditions, thereby forming more puncture channels that meet the requirements and improving the efficiency of active material stripping in the subsequent process.

[0040] Two ultrasonic modules 4 are symmetrically arranged on both sides of the conductive base 34. Connecting rods 41 are fixedly connected to the upper surfaces of both ends of the ultrasonic module 4. Multiple vibrating strips 42 are fixedly connected to adjacent connecting rods 41, and these strips are vertically and uniformly distributed. The uppermost vibrating strip 42 is higher than the upper surface of the battery. After discharge, the puncture assembly 2 rises and resets, while the electrolyte is drawn away. At this time, the second liquid supply system 8 injects the stripping fluid into the recovery cylinder 1. When the stripping fluid reaches a suitable height, the ultrasonic module 4 is activated. The cavitation effect and mechanical vibration effect of ultrasound are used to break up the solid particles. Specifically, the local high-pressure shock wave generated by the ultrasonic cavitation effect can directly destroy the bonding force between particles, causing large agglomerates to break down into 10μm particles. The fine powder below, at the same time, the high-frequency mechanical vibration of the ultrasound can continuously impact the particles stuck in the pores, breaking the "bridging effect". Combined with the steric hindrance effect of the surfactant, the fine powder will be coated by the surfactant molecules, avoiding secondary agglomeration. Finally, it will be discharged from the puncture channel with the flow of the solution, achieving the peeling effect. The setting of the connecting rod 41 and the vibrating strip 42 can effectively increase the ultrasonic transmission area, improve the ultrasonic diffusion efficiency, and thus improve the peeling efficiency of the active material in the battery.

[0041] The stripping fluid circulation pipe 14 located at the top passes through the recovery cylinder 1 and is connected to a water outlet pipe 17 at one end. The bottom end of the water outlet pipe 17 passes through the hollow guide ring 6 and is connected to the inner cavity of the hollow guide ring 6. A blocking ring 612 is fixedly connected to the lower surface of the hollow guide ring 6, and the inner wall of the blocking ring 612 is in close contact with the outer surface of the semi-circular swing bar 63. The lower surface of the hollow guide ring 6 is also provided with an annular groove that slopes towards the inner wall of the recovery cylinder 1. The water outlet pipe 17 is connected to the stripping fluid circulation pipe 14 located at the top and the hollow guide ring 6 respectively. The annular groove that slopes towards the inner wall of the recovery cylinder 1 on the lower surface of the hollow guide ring 6 allows the stripping fluid to enter the hollow guide ring 6 through the stripping fluid circulation pipe 14 and then flow out towards the inner wall of the recovery cylinder 1 along the annular cavity. This changes the flow direction of the stripping fluid and makes the stripping fluid flow into the recovery cylinder 1 more uniform, avoiding the problem of large-area splashing of the stripping fluid caused by the horizontal spraying of the stripping fluid from the stripping fluid circulation pipe 14.

[0042] Example 3

[0043] As a further supplement to Example 1, such as Figures 2-8As shown, a sealing plate 5 is fixedly connected to the inner wall of the recycling cylinder 1 above the discharge port. The sealing plate 5 has parallel narrow strip grooves 51 and wide rectangular grooves 52. A first motor 53 and a fixed base 551 are fixedly connected to the sealing plate 5 on the side of the narrow strip groove 51 away from the wide rectangular groove 52. A fixed shaft is fixedly connected to the fixed base 551. A main gear 54 is concentrically fixed to the output shaft of the first motor 53. The main gear 54 meshes with a secondary gear 55, which is rotatably connected to the fixed shaft on the fixed base 551. A first transmission wheel 56 is fixedly connected to both the main gear 54 and the secondary gear 55 on the side opposite to the narrow strip groove 51. Rotating rods 59 are respectively connected to both ends of the inner wall of the narrow groove 51 opposite to the rectangular wide groove 52. The end of the rotating rod 59 away from the narrow groove 51 is rotatably connected to the inner wall of the rectangular wide groove 52. The ends of the two rotating rods 59 located in the narrow groove 51 are concentrically fixed with second transmission wheels 58. The two second transmission wheels 58 and the two adjacent first transmission wheels 56 are all sleeved with transmission belts 57. The two rotating rods 59 located in the rectangular wide groove 52 are both fixedly connected with rotating plates 591. A protective cover 511 is fixedly connected to the lower surface of the sealing plate 5 directly below the narrow groove 51. When the puncture head 24 rises and resets, in order to improve the protection of the puncture head 24... As a result, by starting the first motor 53, the output shaft of the first motor 53 drives the main gear 54 and the first transmission wheel 56 to rotate, which in turn drives the secondary gear 55 meshing with the main gear 54 to rotate. At this time, the rotation directions of the main gear 54 and the secondary gear 55 are opposite, causing the two first transmission wheels 56 fixedly connected to the main gear 54 and the secondary gear 55 to rotate in opposite directions. The first transmission wheel 56 and the second transmission wheel 58 are connected by the transmission belt 57, so that the second transmission wheel 58 rotates in the same direction as the corresponding first transmission wheel 56. The second transmission wheel 58 drives the rotating rod 59 fixedly connected to it to rotate, which in turn drives the two rotating plates 591. When the two rotating plates 591 are open, the puncture assembly 2 can freely move up and down through the rectangular wide slot 52 on the sealing plate 5 to puncture the battery casing. When the two rotating plates 591 are closed, the puncture assembly 2 can be sealed and isolated after reset to prevent the stripping fluid from splashing onto the puncture assembly 2 during the stripping process, which would cause contamination and damage to the second electric push rod 25 and the puncture probe 26 on the puncture assembly 2. The protective cover 511 fixedly connected to the lower surface of the sealing plate 5 further seals and protects the bottom of the narrow strip slot 51, preventing the stripping fluid from splashing and contaminating the puncture assembly 2 through the narrow strip slot 51, thus improving the protection effect of the puncture assembly 2.

[0044] The upper surfaces of the two rotating plates 591 at adjacent ends are set with an inclined chamfer, and the lower surfaces of the two rotating plates 591 at adjacent ends are set to be flush with each other. The two rotating plates 591 are attached to each other on opposite sides. By setting the upper surfaces of the two rotating plates 591 at adjacent ends with an inclined chamfer, it is convenient for the two rotating plates 591 to open quickly when flipping downwards. Setting the lower surfaces of the two rotating plates at adjacent ends to be flush with each other can improve the stability of the two rotating plates 591 attached to each other and avoid the problem of the two rotating plates 591 flipping upwards. Finally, the two rotating plates 591 are attached to each other on opposite sides, which can improve the sealing between them and reduce the risk of stripping fluid splashing and contaminating the puncture assembly 2.

[0045] A hollow guide ring 6 is fixedly connected to the inner wall of the recovery cylinder 1 near the bottom of the sealed compartment door 18. Two symmetrically arranged connecting pipes 61 are fixedly connected to the hollow guide ring 6, and the two connecting pipes 61 are located at both ends of the same diameter on the hollow guide ring 6. A rotating sleeve 62 is sleeved on the top end of each of the two connecting pipes 61. A semi-circular swing bar 63 adapted to the semi-circular contour of the inner wall of the hollow guide ring 6 is arranged between the two rotating sleeves 62, and the two ends of the semi-circular swing bar 63 are sleeved and fixed on the outer wall of the rotating sleeve 62. Above the two rotating sleeves 62, there is a fixed... A second motor 65 is fixedly connected, and both second motors 65 are electrically connected to an external controller. The bottom end of the output shaft of the second motor 65 is inserted and fixedly connected to the top of the corresponding rotating sleeve 62. An isolation cover 66 fixedly connected to the recovery cylinder 1 is provided around the second motor 65. A liquid level sensor 67 is fixedly connected to the outer wall of one of the isolation covers 66, and the liquid level sensor 67 is electrically connected to an external sensor. The bottom end of the liquid level sensor 67 is lower than the upper surface of the semi-circular swing bar 63. After the active materials such as graphite inside the lithium battery are stripped, they are mainly dispersed and suspended in the stripping liquid, some of which have a density less than that of the stripping liquid. A small amount of the component may float on the liquid surface. Two second motors 65 are activated, and their output shafts drive the rotating sleeves 62 to rotate. When the two rotating sleeves 62 rotate in opposite directions, the semi-circular oscillating strip 63, fixedly connected to the two rotating sleeves 62, deforms from one side of the hollow guide ring 6 to the other under the pressure of the two opposing directions. During this process, because the upper surface of the semi-circular oscillating strip 63 is higher than the surface of the stripping liquid, and the bottom of the semi-circular oscillating strip 63 is below the surface of the stripping liquid, the semi-circular oscillating strip 63 moves through deformation during this displacement. The oscillating bar 63 pushes the active substances floating on the liquid surface from one side to the other, reducing the floating area of ​​the active substances on the surface of the stripping liquid and pushing the originally floating and diffused active substances to one side for easy collection later. The bottom of the liquid level sensor 67 is lower than the upper surface of the semi-circular oscillating bar 63 to monitor the height of the injected stripping liquid, ensuring that the liquid surface can submerge the bottom of the semi-circular oscillating bar 63, but not higher than the upper surface of the semi-circular oscillating bar 63. This ensures that each horizontal deformation of the semi-circular oscillating bar 63 can push the active substances floating on the liquid surface to one side for collection.

[0046] A right-angle groove adapted to its length is provided on one side of the semi-circular swing bar 63. Multiple elastic metal ribs 631 are provided through the semi-circular swing bar 63. When the semi-circular swing bar 63 deforms under the compression of two opposing forces, in order to avoid deformation other than horizontal deformation, multiple elastic metal ribs 631 are provided through the semi-circular swing bar 63 to enhance its own toughness and improve its stability during horizontal deformation, thereby enhancing its stability in collecting floating objects on the surface of the stripping liquid.

[0047] The semicircular oscillating bar 63 and the rotating sleeve 62 are both provided with corresponding first guide holes 64, and the two first guide holes 64 are concentrically arranged. The connecting pipe 61 is provided with a second guide hole 641 on the side wall opposite to the first guide hole 64. The bottom end of the connecting pipe 61 is connected to a guide pipe 611, and the guide pipe 611 is connected to an external recycling system. Since the connecting pipe 61 has a second guide hole 641 on the side wall opposite to the first guide hole 64, when the semicircular oscillating bar 63 is not deformed, the inner wall of the rotating sleeve 62 provides first guide hole 641 on the connecting pipe 61. When the semi-circular swing bar 63 deforms, the rotating sleeve 62 fixedly connected to it will rotate to the other side, so that the second guide hole 641 and the first guide hole 64 coincide. At this time, the active substances floating on the surface are pushed by the semi-circular swing bar 63 and gather on one side of the first guide hole 64. This allows the active substances to enter the first guide hole 64 from the second guide hole 641 and finally enter the external receiving and collecting system through the connecting pipe 61 and the guide pipe 611 for collection, thereby achieving the centralized collection of active substances floating on the surface of the stripping liquid.

[0048] Working Principle: During operation, the device first injects electrolyte and stripping fluid into the recovery cylinder 1 via the first liquid supply system 7 and the second liquid supply system 8, respectively. Combined with the piercing assembly 2 and the support assembly 3, the batteries entering the recovery cylinder 1 are discharged and stripped sequentially. This avoids the problem of pollutants leaking into the external environment during battery transfer after discharge, preventing environmental pollution. By concentrating the discharge and stripping operations within the recovery cylinder 1, the device not only avoids the leakage risk during discharge, stripping, and transfer but also significantly improves the efficiency of wet battery recycling. Specifically, the first liquid supply system 7 injects electrolyte into the recovery cylinder 1 through the electrolyte circulation pipe 11, maintaining the liquid level at a suitable height. Then, the second liquid supply system 7... The output shaft of the third electric actuator 31 drives the conductive seat 34 to rise to the discharge port. Then, the sealed chamber door 18 is opened, and the battery to be recycled is placed on the conductive seat 34 through the discharge port. The positive electrode tab of the battery contacts the positive conductive contact of the conductive seat 34, and the negative electrode tab contacts the negative conductive contact of the conductive seat 34, thus forming a closed discharge circuit. Then, the output shaft of the third electric actuator 31 is controlled to descend, driving the conductive seat 34 and the battery to be immersed in the electrolyte for continuous discharge. Subsequently, the output shaft of the first electric actuator 21 is controlled to move the first insulating plate 23 and the piercing head 24 downward, and finally pierces the battery casing through the piercing head 24. This creates a stripping channel for the subsequent stripping of the active material inside the battery and improves the battery's performance during the discharge process. The stability of the battery is ensured by the injected electrolyte being compatible with the internal electrolyte. The channels created by the puncture promote the penetration of external electrolyte to replenish the internal electrolyte loss, thereby maintaining lithium-ion migration efficiency and delaying the increase in discharge internal resistance. Before the discharge ends, the puncture head 24 always penetrates the battery casing and remains in a punctured state. After the battery is fully discharged, the output shaft of the first electric push rod 21 drives the first insulating plate 23 and the puncture head 24 to rise and reset, facilitating the subsequent stripping process. Active materials can quickly flow out from these puncture channels. After the puncture head 24 resets, the first liquid supply system 7 is controlled to draw away the electrolyte in the recovery cylinder 1. After the electrolyte in the recovery cylinder 1 is completely drawn away, the second liquid supply system 8 is controlled to inject the stripping liquid in the solution cylinder 12 into the recovery cylinder 1. Simultaneously, the ultrasonic module 4 is activated for ultrasonic vibration. The stripping fluid here is a surfactant, which dissolves the adhesive on the surface of the active material inside the recovery cylinder 1. This allows the active material to break into powder under the continuous ultrasonic vibration of the ultrasonic module 4 and flow out from the puncture channel on the battery casing. The working time of the ultrasonic module 4 is set to ensure that the active material inside the battery can be fully stripped out. After the active material is completely stripped out, the second liquid supply system 8 is controlled to pump out the stripping fluid from the recovery cylinder 1. Finally, the third electric push rod 31 is controlled to drive the second insulating plate 33 to rise again, so that the conductive seat 34 holds the battery back at the discharge port, making it convenient for technicians to remove the stripped battery and proceed with the discharge stripping of the next battery.This device simplifies operation and improves recycling efficiency by discharging and stripping active materials within the recycling cylinder 1, utilizing related components in conjunction with the first liquid supply system 7 and the second liquid supply system 8. It also solves the problem of leakage during battery transfer after puncture. By combining the different operations of battery discharge and stripping into a single container for centralized processing, it directly addresses the issue of internal contaminants leaking into the external environment when punctured batteries are transferred between two different operating devices, thus preventing environmental pollution. This significantly improves the safety of the wet battery recycling process, while the elimination of transfer operations greatly enhances the efficiency of wet battery recycling.

[0049] The specific flow process of the stripping fluid is as follows: when it is necessary to strip the active material inside the battery, the water valve 16 and water pump 15 located on the lower stripping fluid circulation pipe 14 are opened by the external controller. At this time, the stripping fluid stored in the solution cylinder 12 enters the recovery cylinder 1 through the lower stripping fluid circulation pipe 14. During the process of the stripping fluid entering the recovery cylinder 1 from the stripping fluid circulation pipe 14, it first enters the outlet pipe 17 through the stripping fluid circulation pipe 14, and then falls from the bottom of the outlet pipe 17 to the top of the connecting pipe 61, and then falls through multiple through holes evenly opened at the top of the connecting pipe 61, avoiding the risk of splashing when the stripping fluid is sprayed horizontally from a single diameter. After the stripping is completed, the stripping fluid in the recovery cylinder 1 is pumped back to the solution cylinder 12 by the water pump 15 located on the upper stripping fluid circulation pipe 14, and filtered by the filter layer 13 to retain the suspended active material in the stripping fluid for subsequent collection.

[0050] Furthermore, by using an external controller to pre-determine the position and height of the electrodes inside different types of lithium batteries, and controlling multiple second electric push rods 25 inside the puncture assembly 2 to adjust their extension amount according to the electrode arrangement position and height of the corresponding lithium battery before descent, the lithium battery casing can be precisely punctured without damaging the battery electrodes and thus affecting the normal discharge of the battery. This ensures that the battery casing is punctured to the maximum extent under normal discharge conditions, thereby forming more puncture channels that meet the requirements and improving the efficiency of active material stripping in the subsequent process.

[0051] After the discharge is completed, the puncture component 2 rises and resets, and the electrolyte is drawn away. At this time, the second liquid supply system 8 injects the stripping liquid into the recovery cylinder 1. When the stripping liquid is injected to a suitable height, the ultrasonic module 4 is activated. The cavitation effect and mechanical vibration effect of ultrasound are used to achieve solid fragmentation. Specifically, the local high-pressure shock wave generated by the ultrasonic cavitation effect can directly destroy the binding force between particles, causing large agglomerates to break down into fine powders of less than 10μm. At the same time, the high-frequency mechanical vibration of ultrasound can continuously impact the particles stuck in the holes, breaking the "bridging effect". With the steric hindrance effect of surfactant, the fine powder will be coated by surfactant molecules to avoid secondary agglomeration. Finally, it will be discharged from the puncture channel with the flow of solution, achieving the stripping effect. The setting of the connecting rod 41 and the vibrating strip 42 can effectively increase the ultrasonic transmission area and improve the ultrasonic diffusion efficiency, thereby improving the stripping efficiency of active materials in the battery.

[0052] After the puncture head 24 rises and resets, to improve the protection of the puncture head 24, the first motor 53 is started. The output shaft of the first motor 53 drives the main gear 54 and the first transmission wheel 56 to rotate, which in turn drives the secondary gear 55, which is meshed with the main gear 54, to rotate. At this time, the main gear 54 and the secondary gear 55 rotate in opposite directions, causing the two first transmission wheels 56, which are fixedly connected to the main gear 54 and the secondary gear 55, to rotate in opposite directions. The first transmission wheel 56 and the second transmission wheel 58 are connected by a transmission belt 57, so that the second transmission wheel 58 rotates in the same direction as the corresponding first transmission wheel 56. The second transmission wheel 58 drives the rotating rod 59, which is fixedly connected to it, to rotate. This causes the two rotating plates 591 to rotate. When the two rotating plates 591 are open, the piercing assembly 2 can freely move up and down through the rectangular wide slot 52 on the sealing plate 5 to pierce the battery casing. When the two rotating plates 591 are closed, the piercing assembly 2 can be sealed and isolated after resetting, preventing the stripping fluid from splashing onto the piercing assembly 2 during the stripping process, which would cause contamination and damage to the second electric push rod 25 and the piercing probe 26 on the piercing assembly 2. The protective cover 511 fixedly connected to the lower surface of the sealing plate 5 can further seal and protect the bottom of the narrow strip slot 51, preventing the stripping fluid from splashing and contaminating the piercing assembly 2 through the narrow strip slot 51, thus improving the protection effect of the piercing assembly 2.

[0053] It is important to note that after the active materials such as graphite inside the lithium battery are stripped, they are mainly dispersed and suspended in the stripping fluid. Some components with a density less than that of the stripping fluid may float to the surface in small quantities. Two second motors 65 are activated, and their output shafts drive the rotating sleeves 62 to rotate. When the two rotating sleeves 62 rotate in opposite directions, the semi-circular oscillating strip 63, fixedly connected to the two rotating sleeves 62, deforms from one side of the hollow guide ring 6 to the other under the pressure of the two opposing directions. During this process, because the upper surface of the semi-circular oscillating strip 63 is higher than the surface of the stripping fluid, and the bottom of the semi-circular oscillating strip 63 is below the surface of the stripping fluid, the semi-circular oscillating strip 63 pushes the active materials floating on the surface to accumulate from one side to the other as it moves through deformation. This reduces the floating area of ​​the active materials on the surface of the stripping fluid, pushing the originally dispersed active materials to one side for easier collection later. The bottom of the liquid level sensor 67 is lower than the upper surface of the semi-circular oscillating strip 63 to monitor the injected stripping fluid. The height of the liquid level is designed to ensure that the surface of the stripping liquid can submerge the bottom of the semi-circular oscillating bar 63, but not exceed the upper surface of the semi-circular oscillating bar 63. This ensures that each horizontal deformation of the semi-circular oscillating bar 63 can push the active material floating on the liquid surface to one side for collection. Since the connecting pipe 61 has a second guide hole 641 opened on the side wall opposite to the first guide hole 64, when the semi-circular oscillating bar 63 is not deformed, the inner wall of the rotating sleeve 62 seals the first guide hole 641 on the connecting pipe 61. When the semi-circular oscillating bar 63 is not deformed, the inner wall of the rotating sleeve 62 seals the first guide hole 641 on the connecting pipe 61. During deformation, the rotating sleeve 62, which is fixedly connected to it, will rotate to the other side, thereby causing the second guide hole 641 to overlap with the first guide hole 64. At this time, the active substances floating on the surface are pushed by the semi-circular swing bar 63 and gather on one side of the first guide hole 64. This allows these active substances to enter the first guide hole 64 from the second guide hole 641 and finally enter the external receiving and collecting system through the connecting pipe 61 and the guide pipe 611 for collection, thereby achieving the centralized collection of active substances floating on the surface of the stripping liquid.

[0054] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A wet recycling and processing device for waste lithium batteries from new energy vehicles, characterized in that, include: A recycling cylinder (1) is fixedly connected to an external connector. The recycling cylinder (1) is connected to a first liquid supply system (7) for assisting battery discharge and a second liquid supply system (8) for assisting in stripping the active material inside the battery. An ultrasonic module (4) for stripping the active material inside the battery is fixedly connected to the bottom of the inner wall of the recycling cylinder (1). A discharge port connected to the inner cavity is opened on the outer wall of the recycling cylinder (1) near the middle, and a sealed chamber door (18) is rotatably connected to the discharge port. A piercing assembly (2) for breaking the battery shell is installed on the top of the recycling cylinder (1). The piercing assembly (2) includes a first electric push rod (21) fixedly connected to the top of the recycling cylinder (1) and a plurality of first guide rods (22) penetrating and connecting the top of the recycling cylinder (1). The bottom end of the output shaft of the first electric push rod (21) penetrates through... A first insulating plate (23) is fixedly connected to the top of the recycling cylinder (1) and the bottom of multiple first guide rods (22). Multiple piercing heads (24) are evenly distributed at the bottom of the first insulating plate (23). A support assembly (3) for loading batteries is installed at the bottom of the recycling cylinder (1). The support assembly (3) includes a third electric push rod (31) fixedly connected to the bottom of the recycling cylinder (1) and multiple second guide rods (32) penetrating and connecting the bottom of the recycling cylinder (1). The top end of the output shaft of the third electric push rod (31) penetrates the top of the recycling cylinder (1) and is fixedly connected to the top end of multiple second guide rods (32) with a second insulating plate (33). A conductive seat (34) is installed on the top of the second insulating plate (33), and a positive conductive contact and a negative conductive contact are integrated on the conductive seat (34).

2. The wet recycling and treatment equipment for waste lithium batteries from new energy vehicles according to claim 1, characterized in that: The first liquid supply system (7) includes two electrolyte circulation pipes (11) connected to the recovery cylinder (1), and the two electrolyte circulation pipes (11) are fixedly connected to the side wall of the recovery cylinder (1) near the bottom. The ends of the two electrolyte circulation pipes (11) away from the recovery cylinder (1) are respectively connected to the inlet and outlet of the electrolyte circulation system. The second liquid supply system (8) includes two stripping liquid circulation pipes (14) connected to the recovery cylinder (1). The ends of the two stripping liquid circulation pipes (14) away from the recovery cylinder (1) are connected to a solution cylinder (12). A water pump (15) and a water valve (16) are connected to the two stripping liquid circulation pipes (14) located between the recovery cylinder (1) and the solution cylinder (12). A filter layer (13) is fixedly connected to the inner wall of the solution cylinder (12) near the top.

3. The wet recycling and treatment equipment for waste lithium batteries from new energy vehicles according to claim 2, characterized in that: A sealing plate (5) is fixedly connected to the inner wall of the recycling cylinder (1) above the discharge port. The sealing plate (5) has parallel strip-shaped narrow grooves (51) and rectangular wide grooves (52). A first motor (53) and a fixed seat (551) are fixedly connected to the sealing plate (5) on the side of the strip-shaped narrow groove (51) away from the rectangular wide groove (52). A fixed shaft is fixedly connected to the fixed seat (551). A main gear (54) is concentrically fixed on the output shaft of the first motor (53). The main gear (54) is meshed with a secondary gear (55). The secondary gear (55) is rotatably connected to the fixed shaft on the fixed seat (551). The main gear (54) and the secondary gear (55) are both on the side opposite to the strip-shaped narrow groove (51). A first transmission wheel (56) is fixedly connected. Rotating rods (59) are respectively connected through the inner walls of the narrow strip groove (51) on the side opposite to the wide rectangular groove (52). The end of the rotating rod (59) away from the narrow strip groove (51) is rotatably connected to the inner wall of the wide rectangular groove (52). The ends of the two rotating rods (59) located in the narrow strip groove (51) are concentrically fixed with second transmission wheels (58). The two second transmission wheels (58) and the two adjacent first transmission wheels (56) are all sleeved with transmission belts (57). The two rotating rods (59) located in the wide rectangular groove (52) are both fixedly connected through rotating plates (591). A protective cover (511) is fixedly connected to the lower surface of the closed plate (5) located directly below the narrow strip groove (51).

4. The wet recycling and treatment equipment for waste lithium batteries from new energy vehicles according to claim 3, characterized in that: The upper surface of each of the two rotating plates (591) at one adjacent end is provided with an inclined surface.

5. The wet recycling equipment for waste lithium batteries from new energy vehicles according to claim 4, characterized in that: The puncture head (24) includes multiple evenly distributed second electric push rods (25) and puncture probes (26). The second electric push rods (25) are fixedly connected to the lower surface of the first insulating plate (23) and connected to an external controller. The puncture probes (26) are fixedly connected to the bottom end of the output shaft of the second electric push rods (25).

6. The wet recycling and treatment equipment for waste lithium batteries from new energy vehicles according to claim 1, characterized in that: There are two ultrasonic modules (4), which are symmetrically arranged on both sides of the conductive base (34). Connecting rods (41) are fixedly connected to the upper surfaces of both ends of the ultrasonic module (4). Multiple vibration strips (42) are fixedly connected to the two adjacent connecting rods (41), and the multiple vibration strips (42) are vertically and evenly distributed. The height of the uppermost vibration strip (42) is higher than the height of the upper surface of the battery.

7. The wet recycling equipment for waste lithium batteries from new energy vehicles according to claim 2, characterized in that: A hollow guide ring (6) is fixedly connected to the inner wall of the recovery cylinder (1) near the bottom of the sealed chamber door (18). Two symmetrically arranged connecting pipes (61) are fixedly connected to the hollow guide ring (6), and the two connecting pipes (61) are located at the two ends of the same diameter on the hollow guide ring (6). A rotating sleeve (62) is sleeved on the top of each of the two connecting pipes (61). A semi-circular swing bar (63) that matches the semi-circular outline of the inner wall of the hollow guide ring (6) is provided between the two rotating sleeves (62), and the two ends of the semi-circular swing bar (63) are sleeved and fixed on the outer wall of the rotating sleeve (62). A second motor (65) that is fixedly connected to the inner wall of the recovery cylinder (1) is provided above each of the two rotating sleeves (62), and the two second motors ( 65) All are electrically connected to an external controller. The bottom end of the output shaft of the second motor (65) is inserted and fixed to the top of the corresponding rotating sleeve (62). The second motor (65) is covered with an isolation cover (66) that is fixedly connected to the recovery cylinder (1). A liquid level sensor (67) is fixedly connected to the outer wall of one of the isolation covers (66), and the liquid level sensor (67) is electrically connected to an external sensor. The bottom end of the liquid level sensor (67) is lower than the upper surface of the semi-circular swing bar (63). A blocking ring (612) is fixedly connected to the lower surface of the hollow guide ring (6), and the inner wall of the blocking ring (612) is in close contact with the outer surface of the semi-circular swing bar (63). The lower surface of the hollow guide ring (6) is also provided with an annular inclined groove that is inclined towards the inner wall of the recovery cylinder (1).

8. The wet recycling equipment for waste lithium batteries from new energy vehicles according to claim 7, characterized in that: The semi-circular swing bar (63) has a right-angle groove on one side that matches its length, and multiple elastic metal ribs (631) are provided inside the semi-circular swing bar (63).

9. The wet recycling equipment for waste lithium batteries from new energy vehicles according to claim 7, characterized in that: The end of the semi-circular swing bar (63) and the side wall of the rotating sleeve (62) are provided with corresponding first guide holes (64), and the two first guide holes (64) are concentrically arranged. The connecting pipe (61) is provided with a second guide hole (641) on the side wall opposite to the first guide hole (64). The bottom end of the connecting pipe (61) is connected to the guide pipe (611), and the guide pipe (611) is connected to the external recycling system.

10. A wet recycling and treatment equipment for waste lithium batteries from new energy vehicles according to claim 7, characterized in that: The stripping fluid circulation pipe (14) located at the top passes through the recovery cylinder (1) and is connected to a water outlet pipe (17) at one end. The bottom end of the water outlet pipe (17) passes through the hollow guide ring (6) and is connected to the inner cavity of the hollow guide ring (6). A blocking ring (612) is fixedly connected to the lower surface of the hollow guide ring (6), and the inner wall of the blocking ring (612) is in close contact with the outer surface of the semi-circular swing bar (63). The lower surface of the hollow guide ring (6) is also provided with an annular inclined groove that is inclined towards the inner wall of the recovery cylinder (1).

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