Recycling device for recycling lithium battery

Through the design of sealing rotating plates, vents, vacuum tubes and double sealing valves, combined with an automated feeding mechanism, the problems of high oxygen concentration and manual feeding in lithium battery recycling and processing are solved, achieving a low-oxygen environment and efficient crushing, ensuring safety and efficiency.

CN120618650AInactive Publication Date: 2025-09-12SHANDONG TAIKOO NEW MATERIAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511014882.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-23
Publication Date
2025-09-12
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing lithium battery recycling process requires long-term discharge, resulting in low work efficiency. The high oxygen concentration during the crushing process poses an explosion risk. Manual feeding causes air exchange, affecting processing efficiency and safety.

Method used

The sealed rotating plate, vent hole, vacuum tube and double sealing valve design are adopted to achieve three-level gradient replacement. Combined with the feeding mechanism controlled by the drive motor, automatic feeding and crushing are realized to ensure a low oxygen environment and avoid manual intervention.

Benefits of technology

Effectively reduce the oxygen concentration during the crushing process to below 3%, avoid explosion risks, improve processing efficiency, realize automated operation, and reduce the risk of gas exchange requiring manual intervention.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120618650A_ABST
    Figure CN120618650A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of recycling devices, in particular to a recycling device for recycling lithium batteries, which comprises a base, a steering seat is fixedly mounted on the upper surface of the right end of the base, a rotating plate is rotatably mounted at the upper end of the steering seat, and a rotating sealing mechanism is rotatably mounted between two limiting rings. A sliding rail is fixedly mounted on the left side of the upper end of the rotating plate, a sliding seat is slidably mounted at the upper end of the sliding rail, a sealing cover is fixedly mounted at the upper end of the sliding seat, a vertical table is fixedly mounted at the lower end of the inner wall of the outer crushing cylinder, and a feeding mechanism is fixedly mounted at the position, located at the upper end of the vertical table, of the opposite inner surface of the sealing cover. And an exhaust pipeline is fixedly mounted at the right end of the blanking groove. Three-item positioning of the sliding rail, the limiting guide block and the limiting guide rail is matched with a discharging hydraulic pump in the feeding mechanism to achieve the purpose of automatic feeding, sealing after manual discharging and automatic discharging for crushing are achieved, manual intervention is not needed, and the gas exchange risk caused by manual feeding is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of recycling and processing devices, and in particular to a recycling and processing device for regenerating and utilizing lithium batteries. Background Art

[0002] With the world's increasing emphasis on environmental protection and sustainable development, the new energy vehicle market has seen explosive growth. As the core power source for new energy vehicles, the use of lithium batteries has also increased significantly.

[0003] Lithium batteries contain rare metals such as lithium, cobalt, and nickel, which are limited resources and highly valuable. Recycling can extract these metals, reducing reliance on primary mineral resources and minimizing environmental damage during mining and processing. Lithium batteries also contain hazardous substances such as electrolytes. For example, lithium hexafluorophosphate (LiPF6) hydrolyzes in air to produce harmful gases such as phosphorus pentafluoride and hydrogen fluoride. If discarded or mishandled, they can cause serious pollution to soil, water, and air.

[0004] In the existing technology, new energy lithium batteries are usually crushed after long-term discharge, and then physically sorted by magnetic separation, wind separation and other methods.

[0005] The existing technology has the following deficiencies:

[0006] 1. Lithium batteries need to be discharged before recycling, which often takes several hours or even days, greatly increasing the working time and reducing the efficiency of recycling. The traditional nitrogen filling method has a high residual oxygen concentration and a high risk of charged crushing and explosion.

[0007] 2. Artificial feeding will cause air exchange inside and outside the equipment. Each layer of re-feeding will introduce some oxygen, and nitrogen and oxygen replacement needs to be completed again. Summary of the Invention

[0008] The purpose of the present invention is to solve the shortcomings of the background technology and propose a recycling and processing device for reusing lithium batteries.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a recycling and processing device for recycling lithium batteries comprises a base, wherein a steering seat is fixedly installed on the upper surface of the right end of the base, a rotating plate is rotatably installed on the upper end of the steering seat, a crushing outer cylinder is fixedly installed in the middle of the upper end of the rotating plate, a nitrogen pipe and a recovery pipe are respectively opened on the upper end of the crushing outer cylinder, a sealing inner cylinder is provided inside the crushing outer cylinder, two symmetrical limiting rings are fixedly installed between the crushing outer cylinder and the sealing inner cylinder, a rotating sealing mechanism is rotatably installed between the two limiting rings, a slide rail is fixedly installed on the left side of the upper end of the rotating plate, a slide seat is slidably installed on the upper end of the slide rail, a sealing cover is fixedly installed on the upper end of the slide seat, a vertical platform is fixedly installed at the lower end of the inner wall of the crushing outer cylinder, the relative inner surface of the sealing cover is located at the upper end of the vertical platform and a feeding mechanism is fixedly installed, a blanking chute is fixedly installed on the right end of the lower surface of the crushing outer cylinder, and an exhaust pipe is fixedly installed on the right end of the blanking chute.

[0010] Preferably, a controller is fixedly installed on the left side of the base, an external hydraulic pump is rotatably installed inside the controller, the output end of the external hydraulic pump is rotatably installed on the left side of the lower surface of the rotating plate, a limiting guide block is fixedly installed on the upper end of the sealing cover, a limiting guide rail is fixedly installed on the left side of the upper end of the crushing outer cylinder, and the limiting guide block is slidably installed on the inner side of the limiting guide rail.

[0011] Preferably, the feeding mechanism includes a slide seat slidably mounted on the upper end of the slide rail, a drive motor is fixedly mounted on the left side of the slide rail, a sealing cover is fixedly mounted on the upper end of the slide seat, a bracket is fixedly mounted on the relative inner surface of the sealing cover, an L-shaped connecting plate is fixedly mounted on the relative inner surface of the sealing cover at the lower end of the bracket, and two symmetrical front swivel seats are provided on the upper surface of the L-shaped connecting plate, a unloading hydraulic pump is rotatably mounted on the upper end of the left front swivel seat, and a front swivel arm is rotatably mounted on the upper end of the right front swivel seat.

[0012] Preferably, the other end of the unloading hydraulic pump is rotatably mounted on the left side of the lower surface of the bracket, the other end of the front swing arm is fixedly mounted on the right side of the lower surface of the bracket, and a bucket is fixedly mounted on the right side of the L-shaped connecting plate.

[0013] Preferably, the rotary sealing mechanism includes two limiting rings fixedly mounted on the outer wall of the sealing inner cylinder, a sealing rotating plate is rotatably mounted between the two limiting rings, a tooth plate is fixedly mounted on the upper end of the sealing rotating plate, a rotating motor is fixedly mounted on the upper end of the crushing outer cylinder, a rotating gear is fixedly mounted on the output end of the rotating motor, the rotating gear passes through the crushing outer cylinder and is meshed with the tooth plate, and the sealing rotating plate is an I-shaped structure.

[0014] Preferably, a plurality of equidistantly arranged ventilation holes are provided on the upper end of the outer surface of the sealed inner cylinder, and the ventilation holes connect the crushing outer cylinder with the sealed inner cylinder and the interior of the sealed inner cylinder, and a protective net is fixedly installed at the lower end of each ventilation hole.

[0015] Preferably, a material drop guide is fixedly installed on the upper end of the material drop chute, a crushing motor is fixedly installed on the outer surface of one side of the material drop chute, the output end of the crushing motor passes through the material drop chute and is rotatably installed with two symmetrical rotors, and the material drop guide is fixedly installed on the right end of the vertical platform, and the material drop chute is connected to the sealed inner cylinder.

[0016] Preferably, the exhaust pipe is fixedly installed on the right side of the blanking chute, a first sealing valve is fixedly installed between the exhaust pipe and the blanking chute, a second sealing valve is fixedly installed on the right side of the exhaust pipe, and a vacuum tube is provided at the upper end of the exhaust pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention realizes a three-stage gradient replacement of vacuuming, nitrogen filling in the interlayer, and inner cavity penetration through the design of a sealing rotating plate, vent holes, vacuum tubes, and double sealing valves. This keeps the oxygen concentration inside the sealed inner cylinder stable below 3%, effectively avoiding battery explosions during the crushing process and completely circumventing the traditional discharge process, greatly improving processing efficiency.

[0019] 2. The feeding mechanism is controlled by the driving motor, and the three positionings of the slide rail, limit guide block and limit guide rail are coordinated with the unloading hydraulic pump in the feeding mechanism to achieve the purpose of automatic feeding. It realizes sealing after manual discharge and automatic unloading for crushing, without manual intervention to avoid the risk of gas exchange caused by manual feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a recycling and processing device for recycling lithium batteries according to the present invention;

[0021] Figure 2 This is a schematic structural diagram of another perspective of the recycling and processing device for recycling lithium batteries of the present invention;

[0022] Figure 3 This is a partial structural diagram of a recycling and processing device for recycling lithium batteries according to the present invention;

[0023] Figure 4 The recycling and processing device for recycling lithium batteries of the present invention Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the crushing outer cylinder structure of the recycling and processing device for recycling lithium batteries of the present invention;

[0025] Figure 6 A partial structural cross-sectional view of a recycling and processing device for recycling lithium batteries according to the present invention;

[0026] Figure 7 This is a schematic structural diagram of the rotary sealing mechanism of the recycling and processing device for recycling lithium batteries of the present invention;

[0027] Figure 8 The recycling and processing device for recycling lithium batteries of the present invention Figure 7 Enlarged view of point B in the middle;

[0028] Figure 9 This is a cross-sectional view of the blanking chute of the recycling and processing device for recycling lithium batteries of the present invention.

[0029] 1. Base; 2. Rotating plate; 3. Steering seat; 4. Controller; 5. Slide rail; 6. Crushing outer cylinder; 7. Sealing cover; 8. Nitrogen pipe; 9. Recovery pipe; 10. Vacuum tube; 11. Position limiting guide rail; 12. Driving motor; 13. Slide seat; 14. Position limiting guide block; 15. First sealing valve; 16. Second sealing valve; 17. Blanking chute; 18. Stand; 19. Sealing inner cylinder; 20. Blanking guide plate; 2 1. Exhaust duct; 22. Rotor; 23. Crushing motor; 24. External hydraulic pump; 101. Bracket; 102. Front rotating arm; 103. Discharge hydraulic pump; 104. L-shaped connecting plate; 105. Front rotating seat; 106. Bucket; 201. Sealing rotating plate; 202. Limiting ring; 203. Tooth plate; 204. Rotating motor; 205. Vent; 206. Protective net; 207. Rotating gear. DETAILED DESCRIPTION

[0030] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0031] like Figures 1-9The recycling and processing device for recycled lithium batteries shown in the figure includes a base 1, a steering seat 3 is fixedly installed on the upper surface of the right end of the base 1, a rotating plate 2 is rotatably installed on the upper end of the steering seat 3, a crushing outer cylinder 6 is fixedly installed in the middle of the upper end of the rotating plate 2, a nitrogen pipe 8 and a recovery pipe 9 are respectively opened at the upper end of the crushing outer cylinder 6, a sealing inner cylinder 19 is provided inside the crushing outer cylinder 6, two symmetrical limiting rings 202 are fixedly installed between the crushing outer cylinder 6 and the sealing inner cylinder 19, a rotating sealing mechanism is rotatably installed between the two limiting rings 202, a slide rail 5 is fixedly installed on the left side of the upper end of the rotating plate 2, a slide seat 13 is slidably installed on the upper end of the slide rail 5, a sealing cover 7 is fixedly installed on the upper end of the slide seat 13, a vertical platform 18 is fixedly installed on the lower end of the inner wall of the crushing outer cylinder 6, and a feeding mechanism is fixedly installed on the opposite inner surface of the sealing cover 7 at the upper end of the vertical platform 18, a blanking chute 17 is fixedly installed on the right end of the lower surface of the crushing outer cylinder 6, and an exhaust pipe 21 is fixedly installed on the right end of the blanking chute 17.

[0032] like Figure 2 As shown, a controller 4 is fixedly installed on the left side of the base 1, and an external hydraulic pump 24 is rotatably installed inside the controller 4. The output end of the external hydraulic pump 24 is rotatably installed on the left side of the lower surface of the rotating plate 2. A limiting guide block 14 is fixedly installed on the upper end of the sealing cover 7, and a limiting guide rail 11 is fixedly installed on the left side of the upper end of the crushing outer cylinder 6. The limiting guide block 14 is slidably installed on the inner side of the limiting guide rail 11. The limiting guide rail 11 limits the limiting guide block 14, so that the sealing cover 7 moves in a directional manner along the slide rail 5 and the limiting guide rail 11 to avoid sealing leakage after merging. The driving motor 12 drives the slide 13 to move, thereby driving the sealing cover 7 to move on the slide rail 5.

[0033] like Figure 3 ,like Figure 4 The feeding mechanism includes a slide 13 slidably mounted on the upper end of the slide rail 5, a drive motor 12 is fixedly mounted on the left side of the slide rail 5, a sealing cover 7 is fixedly mounted on the upper end of the slide 13, a bracket 101 is fixedly mounted on the relative inner surface of the sealing cover 7, an L-shaped connecting plate 104 is fixedly mounted on the relative inner surface of the sealing cover 7 at the lower end of the bracket 101, and two symmetrical front rotating seats 105 are provided on the upper surface of the L-shaped connecting plate 104. A unloading hydraulic pump 103 is rotatably mounted on the upper end of the left front rotating seat 105, and a front rotating arm 102 is rotatably mounted on the upper end of the right front rotating seat 105. The operator places the new energy battery on the upper end of the bracket 101 before recycling, and drives the sealing cover 7 and the crushing outer cylinder 6 to be sealed and merged by the drive motor 12, completing the nitrogen and oxygen replacement without manual feeding.

[0034] The other end of the unloading hydraulic pump 103 is rotatably mounted on the left side of the lower surface of the bracket 101, the other end of the front rotating arm 102 is fixedly mounted on the right side of the lower surface of the bracket 101, and a bucket 106 is fixedly mounted on the right side of the L-shaped connecting plate 104. When the nitrogen and oxygen replacement is completed, the unloading hydraulic pump 103 starts working to lift the left side of the bracket 101. At this time, the new energy lithium battery located at the upper end of the bracket 101 slides to the right due to the influence of gravity and falls into the upper end of the blanking guide plate 20.

[0035] like Figure 6 , Figure 7 、 Figure 8 As shown, the rotary sealing mechanism includes two limiting rings 202 fixedly mounted on the outer wall of the sealing inner cylinder 19, a sealing rotating plate 201 is rotatably mounted between the two limiting rings 202, a tooth plate 203 is fixedly mounted on the upper end of the sealing rotating plate 201, a rotating motor 204 is fixedly mounted on the upper end of the crushing outer cylinder 6, a rotating gear 207 is fixedly mounted on the output end of the rotating motor 204, the rotating gear 207 penetrates the crushing outer cylinder 6 and meshes with the tooth plate 203, and the sealing rotating plate 201 is an I-shaped structure, the rotating gear 207 is driven by the rotating motor 204, and the tooth plate 203 meshing with the rotating gear 207 is forced to rotate inside the limiting rings 202, wherein the rotating gear 207 penetrates the outer wall of the crushing outer cylinder 6 and is wrapped by the outer shell to achieve sealing to prevent leakage of the internal gas medium.

[0036] A number of equidistantly arranged air vents 205 are provided at the upper end of the outer surface of the sealing inner cylinder 19. The air vents 205 connect the crushing outer cylinder 6 with the sealing inner cylinder 19 and the interior of the sealing inner cylinder 19. A protective net 206 is fixedly installed at the lower end of each air vent 205. When the sealing rotating plate 201 is located at the upper end of the air vent 205, the crushing outer cylinder 6 and the sealing inner cylinder 19 are not connected to the interior of the sealing inner cylinder 19 and are separated from each other. When the rotating gear 207 drives the tooth plate 203 to rotate, the sealing rotating plate 201 rotates inside the limiting ring 202 to displace the upper end of the air vent 205. At this time, the sealing inner cylinder 19 is connected with the crushing outer cylinder 6 and the sealing inner cylinder 19, thereby realizing the interaction of the gas medium.

[0037] like Figure 9 As shown, a blanking guide plate 20 is fixedly installed on the upper end of the blanking chute 17, and a crushing motor 23 is fixedly installed on the outer surface of one side of the blanking chute 17. The output end of the crushing motor 23 passes through the blanking chute 17 and is rotatably installed with two symmetrical rotors 22. The blanking guide plate 20 is fixedly installed on the right end of the stand 18. The blanking chute 17 is connected to the sealed inner cylinder 19, and the blanking guide plate 20 is fixedly installed on the inner side of the sealed inner cylinder 19 to achieve a sealed connection between the blanking chute 17 and the sealed inner cylinder 19. When the new energy lithium battery is crushed by the rotor 22, the fragments fall into the inside of the blanking chute 17 and are collected centrally.

[0038] The exhaust pipe 21 is fixedly installed on the right side of the blanking chute 17. A first sealing valve 15 is fixedly installed between the exhaust pipe 21 and the blanking chute 17. A second sealing valve 16 is fixedly installed on the right side of the exhaust pipe 21. A vacuum tube 10 is provided at the upper end of the exhaust pipe 21. After the feeding mechanism completes the transportation of the new energy lithium battery, the first sealing valve 15 is in the open state, the exhaust pipe 21 is connected to the blanking chute 17 and the inside of the sealing inner cylinder 19, and the sealing rotating plate 201 is located at the upper end of the vent 205. At this time, the vacuum tube 10 starts to work. The internal air is extracted to reduce the oxygen content. After the low oxygen state is achieved, the first sealing valve 15 is closed, and the nitrogen pipe 8 located at the upper end of the crushing outer cylinder 6 starts to work. The space between the sealed inner cylinder 19 and the crushing outer cylinder 6 is filled with nitrogen. However, after the oxygen content inside the sealed inner cylinder 19 is lower than 3%, the sealing rotating plate 201 rotates to connect the space between the sealed inner cylinder 19 and the crushing outer cylinder 6 with the sealed inner cylinder 19, and nitrogen enters the sealed inner cylinder 19 through the vent hole 205, so that the sealed inner cylinder 19 and the blanking chute 17 are both in a high nitrogen and low oxygen state.

[0039] Working Principle: The operator activates the system via controller 4. External hydraulic pump 24 rotates rotating plate 2, placing crushing outer drum 6 in the horizontal feed position. Drive motor 12 drives slide 13 to the left along slide rail 5, opening sealing cover 7 (limiting guide block 14 slides along limiting guide rail 11), exposing bracket 101.

[0040] The lithium batteries to be processed are stacked on the bracket 101. The controller 4 triggers the drive motor 12 to run in reverse, and the sealing cover 7 moves rightward and closes (the limiting guide rail 11 forces the limiting guide block 14 to precisely mate), so that the sealing cover 7 and the crushing outer cylinder 6 form a hard seal.

[0041] The first sealing valve 15 opens, and the vacuum tube 10 is activated, extracting air from the sealed inner cylinder 19 and the chute 17 (target oxygen concentration: <8%). The first sealing valve 15 opens, and the exhaust pipe 21 connects to the chute 17 and the interior of the sealed inner cylinder 19. The vacuum tube 10 is activated, extracting the air inside and reducing the oxygen content. At this point, the sealing rotary plate 201 is located above the vent hole 205, ensuring that the space between the crushing outer cylinder 6 and the sealed inner cylinder 19 is disconnected from the interior of the sealed inner cylinder 19.

[0042] When the internal oxygen content drops to the set value, the first sealing valve 15 is closed and the nitrogen pipe 8 starts to work, filling nitrogen into the space between the crushing outer cylinder 6 and the sealing inner cylinder 19. Through nitrogen replacement, the internal oxygen content is further reduced.

[0043] Vacuum tube 10 stops, and nitrogen pipe 8 fills the space between crushing outer cylinder 6 and sealing inner cylinder 19 with nitrogen. Rotating motor 204 is activated. This activates gear plate 203 via gear 207, causing sealing rotary plate 201 to rotate within retaining ring 202, offset from the upper end of vent 205. Nitrogen then enters the sealed inner cylinder 19 through vent 205, ensuring a high-nitrogen, low-oxygen state in both the sealed inner cylinder 19 and the chute 17. The high-purity nitrogen in the interlayer penetrates into the sealed inner cylinder 19 through vent 205 (protective screen 206 blocks debris), achieving an intracavity oxygen concentration of ≤3%. At this point, first sealing valve 15 closes, and second sealing valve 16 remains closed, completing the three-stage permeation replacement process.

[0044] When the internal nitrogen concentration reaches the standard, the unloading hydraulic pump 103 is started, which lifts the left side of the bracket 101, causing the new energy lithium battery to slide to the right under the influence of gravity and eventually fall into the upper end of the drop guide 20. The drop guide 20 is fixedly installed at the right end of the stand 18 to ensure that the battery can slide smoothly.

[0045] The battery enters the sealed inner cylinder 19 through the blanking guide plate 20, and the rotor 22 driven by the crushing motor 23 crushes the battery. The crushed battery fragments fall into the blanking chute 17 and are collected.

[0046] After crushing, the fragments slide into the collection bin at the bottom of the chute 17 through the material guide plate 20, the second sealing valve 16 is opened, and the fragments are transported to the secondary crushing section through the sealed pipeline.

[0047] After crushing is complete, first sealing valve 15 opens again, and the gases generated during the crushing process are discharged through exhaust pipe 21. Second sealing valve 16 remains closed, ensuring that the gases are discharged only through exhaust pipe 21. Recovery pipe 9 is activated to recover the gases generated during the crushing process. The recovered gases can be reprocessed or discharged, preventing the direct release of harmful gases into the environment.

[0048] The rotating motor 204 is reversed, and the sealing plate 201 is reset to cover the vent hole 205 (restore Figure 7 The drive motor 12 opens the sealing cover 7, and the unloading hydraulic pump 103 lowers the bracket 101. The external hydraulic pump 24 pulls the rotating plate 2 back to facilitate the cleaning of residual debris.

[0049] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A recycling and processing device for reusing lithium batteries, comprising a base (1), characterized in that: A steering seat (3) is fixedly mounted on the upper surface of the right end of the base (1), a rotating plate (2) is rotatably mounted on the upper end of the steering seat (3), a crushing outer cylinder (6) is fixedly mounted on the middle part of the upper end of the rotating plate (2), a nitrogen pipe (8) and a recovery pipe (9) are respectively opened at the upper end of the crushing outer cylinder (6), a sealing inner cylinder (19) is provided inside the crushing outer cylinder (6), two symmetrical limiting rings (202) are fixedly mounted between the crushing outer cylinder (6) and the sealing inner cylinder (19), and a rotating ring (202) is rotatably mounted between the two limiting rings (202). A rotary sealing mechanism is provided, wherein a slide rail (5) is fixedly installed on the left side of the upper end of the rotating plate (2), a slide seat (13) is slidably installed on the upper end of the slide rail (5), a sealing cover (7) is fixedly installed on the upper end of the slide seat (13), a stand (18) is fixedly installed on the lower end of the inner wall of the crushing outer cylinder (6), a feeding mechanism is fixedly installed on the opposite inner surface of the sealing cover (7) located at the upper end of the stand (18), a material drop chute (17) is fixedly installed on the right end of the lower surface of the crushing outer cylinder (6), and an exhaust pipe (21) is fixedly installed on the right end of the material drop chute (17).

2. The recycling and processing device for recycled lithium batteries according to claim 1, characterized in that: A controller (4) is fixedly mounted on the left side of the base (1), an external hydraulic pump (24) is rotatably mounted inside the controller (4), an output end of the external hydraulic pump (24) is rotatably mounted on the left side of the lower surface of the rotating plate (2), a limiting guide block (14) is fixedly mounted on the upper end of the sealing cover (7), a limiting guide rail (11) is fixedly mounted on the left side of the upper end of the crushing outer cylinder (6), and the limiting guide block (14) is slidably mounted on the inner side of the limiting guide rail (11).

3. The recycling and processing device for recycled lithium batteries according to claim 1, characterized in that: The feeding mechanism includes a slide seat (13) slidably mounted on the upper end of a slide rail (5), a driving motor (12) is fixedly mounted on the left side of the slide rail (5), a sealing cover (7) is fixedly mounted on the upper end of the slide seat (13), a bracket (101) is fixedly mounted on the relative inner surface of the sealing cover (7), an L-shaped connecting plate (104) is fixedly mounted on the relative inner surface of the sealing cover (7) at the lower end of the bracket (101), and two symmetrical front rotating seats (105) are provided on the upper surface of the L-shaped connecting plate (104), a discharge hydraulic pump (103) is rotatably mounted on the upper end of the left front rotating seat (105), and a front rotating arm (102) is rotatably mounted on the upper end of the right front rotating seat (105).

4. The recycling and processing device for recycled lithium batteries according to claim 3, characterized in that: The other end of the unloading hydraulic pump (103) is rotatably mounted on the left side of the lower surface of the bracket (101), the other end of the front rotating arm (102) is fixedly mounted on the right side of the lower surface of the bracket (101), and a bucket (106) is fixedly mounted on the right side of the L-shaped connecting plate (104).

5. The recycling and processing device for recycled lithium batteries according to claim 1, characterized in that: The rotary sealing mechanism comprises two limiting rings (202) fixedly mounted on the outer wall of the sealing inner cylinder (19); a sealing rotating plate (201) is rotatably mounted between the two limiting rings (202); a tooth plate (203) is fixedly mounted on the upper end of the sealing rotating plate (201); a rotating motor (204) is fixedly mounted on the upper end of the crushing outer cylinder (6); a rotating gear (207) is fixedly mounted on the output end of the rotating motor (204); the rotating gear (207) penetrates the crushing outer cylinder (6) and meshes with the tooth plate (203); and the sealing rotating plate (201) is an I-shaped structure.

6. The recycling and processing device for recycled lithium batteries according to claim 5, characterized in that: The upper end of the outer surface of the sealed inner cylinder (19) is provided with a plurality of equidistantly arranged ventilation holes (205), the ventilation holes (205) allowing the crushing outer cylinder (6) and the sealed inner cylinder (19) to communicate with the interior of the sealed inner cylinder (19), and a protective net (206) is fixedly mounted at the lower end of each ventilation hole (205).

7. The recycling and processing device for recycled lithium batteries according to claim 1, characterized in that: A material drop guide plate (20) is fixedly mounted on the upper end of the material drop chute (17), a crushing motor (23) is fixedly mounted on the outer surface of one side of the material drop chute (17), an output end of the crushing motor (23) passes through the material drop chute (17) and is rotatably mounted with two symmetrical rotors (22), and the material drop guide plate (20) is fixedly mounted on the right end of the stand (18), and the material drop chute (17) is communicated with the sealing inner cylinder (19).

8. The recycling and processing device for recycled lithium batteries according to claim 1, characterized in that: The exhaust pipe (21) is fixedly installed on the right side of the blanking chute (17), a first sealing valve (15) is fixedly installed between the exhaust pipe (21) and the blanking chute (17), a second sealing valve (16) is fixedly installed on the right side of the exhaust pipe (21), and a vacuum tube (10) is provided at the upper end of the exhaust pipe (21).