Device for drying and volatilizing waste lithium battery after shredding treatment
By combining crushing rollers and filter screens, along with the inner furnace body stirring blades and hot air circulation system, the problems of material adhesion and clogging were solved, achieving uniform drying and safe operation after lithium battery shredding.
Patent Information
- Application Number
- CN202520550558.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing lithium battery shredding and drying equipment, the materials tend to stick together, forming lumps and clusters, which affects the drying effect and may block the discharge port, posing a fire and explosion risk.
The pretreatment is carried out using a combination of crushing rollers and filter screens. The inner furnace body is equipped with stirring blades and a hot air circulation system to ensure uniform feeding and heating of materials, prevent sticking, and provide an inspection door for easy maintenance.
It achieves uniform material feeding and drying, improves drying quality, reduces equipment blockage and fire/explosion risks, and ensures safe and stable equipment operation.
Smart Images
Figure CN223896390U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery recycling technology, and in particular to a device for drying and volatilizing waste lithium batteries after shredding. Background Technology
[0002] Lithium batteries are batteries that use lithium metal and lithium alloys as negative electrode materials and non-aqueous electrolyte solutions to provide energy for smartphones, tablets, laptops, and headphone devices, freeing these devices from the constraints of power cords and making them convenient for people to use anytime, anywhere, meeting daily communication, entertainment, and office needs. Lithium batteries that have been used and can no longer meet the original usage requirements or have reached the end of their service life need to be scrapped.
[0003] The disposal of end-of-life lithium batteries involves the use of a drying and volatilization device after the waste lithium batteries are shredded. It is generally a horizontal structure, consisting of a furnace body, a heating system, a material conveying system, and a tail gas treatment system. The furnace body contains rotating heating tubes, and the material is slowly pushed into the furnace tubes.
[0004] In existing technology, this equipment heats the furnace tubes with heating wires, causing the shredded waste lithium battery material to evaporate its electrolyte and other components under heating conditions. The evaporated electrolyte is then pumped by a fan into the exhaust gas treatment system for processing, thus separating the electrolyte from other solid materials. However, this method carries a high risk of fire and explosion. During drying, flammable gases can easily ignite when exposed to ignition sources and static electricity. Inert gases such as nitrogen are used to provide a protective atmosphere, displacing air and reducing oxygen content and flammable gas concentration. Static electricity elimination devices, such as static eliminators, are installed, and the equipment is regularly grounded and maintained to prevent static electricity accumulation. However, the materials may still stick together, forming lumps and clumps, which not only affects the drying effect but may also block the equipment's discharge port. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a drying and volatilization device for shredded waste lithium batteries, which aims to improve the problem in the prior art where materials stick together to form lumps and clusters, which not only affects the drying effect but may also block the outlet of the equipment.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a drying and volatilization device for shredded waste lithium batteries, comprising a drying furnace, a fixed frame fixedly connected to the outside of the drying furnace, cross braces fixedly connected at equal intervals to the top of the fixed frame, a fixed plate fixedly connected to the left end of the cross braces, multiple fixed columns fixedly connected at equal intervals to the right side of the fixed plate, a fixed block fixedly connected to the front of the fixed column, a second motor fixedly connected to the right end of the fixed block, a gear fixedly connected to the output end of the second motor, a crushing roller fixedly connected to the end of the gear, a receiving hopper installed at the top of the fixed column, a fifth motor installed at the bottom of the fixed column, and a fixed rod fixedly connected to the output end of the fifth motor. A support arm is fixedly connected to the middle of the outer wall of the fixed rod. A damping rod is rotatably connected to the end of the support arm. A filter screen is fixedly connected to the end of the damping rod. Rollers are fixedly connected to the four corners of the bottom of the filter screen. A sliding groove is opened on the inner side of the bottom of the fixed column. The rollers are slidably connected inside the sliding groove. A top cover is installed at the bottom of the cross brace. A support frame is set on the left side of the drying oven. A conveyor frame is fixedly connected to the top of the support frame. A conveyor belt is installed on the inner side of the conveyor frame. A baffle is installed at the end of the conveyor belt. A controller is installed in the middle of the support frame. An inner furnace body is installed on the inner side of the drying oven. A heating mechanism is installed on the outer side of the drying oven. The heating mechanism is used to improve the drying efficiency of the drying oven.
[0007] As a further description of the above technical solution:
[0008] The heating mechanism includes a hot air blower, which is located at the rear bottom of the drying oven. A motor is installed on the lower right side of the hot air blower. Air guide pipes are installed on both the left and right sides of the outer wall of the hot air blower. The ends of the air guide pipes are connected to an air box. A grating plate is installed on the inner side of the air box. Multiple connecting plates are fixedly connected at equal intervals to the outer wall of the inner furnace body. A connecting rod is fixedly connected to the middle of the connecting plate. A motor is installed at the bottom of the connecting rod. A fan is installed at the output end of the motor.
[0009] As a further description of the above technical solution:
[0010] A wire is installed on the right side of the heating mechanism, and a control cabinet is installed at the end of the wire.
[0011] As a further description of the above technical solution:
[0012] A limiting frame is fixedly connected to the middle of the top wall of the cross brace, and a motor is fixedly connected to the inner side of the limiting frame.
[0013] As a further description of the above technical solution:
[0014] The output end of the motor is fixedly connected to a rotating shaft, and the bottom end of the rotating shaft is fixedly connected to a stirring blade.
[0015] As a further description of the above technical solution:
[0016] A discharge hopper is fixedly connected to the bottom center of the drying oven, and a discharge pipe is connected to the bottom right side of the discharge hopper.
[0017] As a further description of the above technical solution:
[0018] Two hinges are installed on the left and right ends of the front side of the outer wall of the control cabinet, and an inspection door is fixedly connected to the rear side of each of the hinges.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the inspection door is fixedly connected to handles on both the left and right ends, and anti-slip sleeves are rotatably connected to the outer sides of both handles.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, waste batteries are fed into the receiving hopper by a conveyor belt, and the waste batteries fall into the crushing roller for crushing. The crushed particles are screened by a vibrating filter screen, so that the particles are evenly scattered in the drying oven, making the feeding more uniform. The filter screen can remove impurities and crush unqualified batteries, and prevent the batteries from sticking together during the drying process.
[0023] 2. In this utility model, the fan around the inner furnace body blows hot air to both ends to form a heat circulation, ensuring a uniform temperature in the inner furnace body, making it easier for the moisture and volatiles in the battery to evaporate. When the crushed battery falls to the bottom of the inner furnace body, the stirring blade rotates and stirs the battery fragments, stirring and dispersing them to ensure the uniformity of the drying effect and improve the drying quality. Attached Figure Description
[0024] Figure 1 This is a perspective view of a device for drying and evaporating waste lithium batteries after shredding and processing, as proposed in this utility model.
[0025] Figure 2 This is a front view of a device for drying and evaporating shredded waste lithium batteries according to the present invention.
[0026] Figure 3 This is a partial structural diagram of a drying and volatilization device for shredding waste lithium batteries proposed in this utility model;
[0027] Figure 4 This is a partial structural detail of a drying and volatilization device for shredding waste lithium batteries proposed in this utility model;
[0028] Figure 5 This is a schematic diagram of the heating mechanism of a drying and volatilization device for shredding waste lithium batteries proposed in this utility model.
[0029] Legend:
[0030] 1. Fixture; 2. Heating mechanism; 201. Hot air blower; 202. Motor 3; 203. Air box; 204. Grille; 205. Connecting plate; 206. Connecting rod; 207. Motor 4; 208. Fan; 209. Air duct; 3. Drying oven; 4. Top cover; 5. Cross brace; 6. Motor 1; 7. Limiting frame; 8. Discharge pipe; 9. Wire; 10. Control cabinet; 11. Hinge; 12. Inspection door; 13. Anti-slip sleeve; 14. Handle; 15. Support frame; 16. Conveyor frame; 17. Conveyor belt; 18. Controller; 19. Baffle; 20. Fixing plate; 21. Fixing column; 22. Rotating shaft; 23. Fixing block; 24. Motor II; 25. Gear; 26. Crushing roller; 27. Receiving hopper; 28. Filter screen; 29. Roller; 30. Damping rod; 31. Support arm; 32. Fixing rod; 33. Motor V; 34. Discharge bin; 35. Agitator blade; 36. Slide chute; 37. Inner furnace body. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a device for drying and evaporating shredded waste lithium batteries, comprising a drying oven 3, a fixing frame 1 fixedly connected to the outside of the drying oven 3, cross braces 5 fixedly connected at equal intervals to the top of the fixing frame 1, a fixing plate 20 fixedly connected to the left end of the cross braces 5, a plurality of fixing columns 21 fixedly connected at equal intervals to the right side of the fixing plate 20, a fixing block 23 fixedly connected to the front side of the fixing column 21, a second motor 24 fixedly connected to the right end of the fixing block 23, and a gear 2 fixedly connected to the output end of the second motor 24. 5. A crushing roller 26 is fixedly connected to the end of gear 25. A receiving hopper 27 is installed on the top of the fixed column 21. A motor 33 is installed at the bottom of the fixed column 21. A fixed rod 32 is fixedly connected to the output end of the motor 33. A support arm 31 is fixedly connected to the middle of the outer wall of the fixed rod 32. A damping rod 30 is rotatably connected to the end of the support arm 31. A filter screen 28 is fixedly connected to the end of the damping rod 30. Rollers 29 are fixedly connected to the four corners of the bottom of the filter screen 28. A groove 36 is opened on the inner side of the bottom of the fixed column 21. Rollers 29 slide inside the chute 36. Waste batteries are fed into the receiving hopper 27 by the conveyor belt 17. The waste batteries fall into the crushing roller 26 for crushing. The crushed particles are screened by the vibrating filter screen 28, so that the particles are evenly distributed in the drying oven 3, making the feeding more uniform. The filter screen 28 can remove impurities and crush unqualified batteries, preventing the batteries from sticking together during the drying process. A top cover 4 is installed at the bottom of the cross brace 5. A support frame 15 is set on the left side of the drying oven 3. The top of the support frame 15 is fixedly connected to a transmission. The conveyor frame 16 has a conveyor belt 17 installed inside it, and a baffle 19 is installed at the end of the conveyor belt 17. A controller 18 is installed in the middle of the support frame 15. An inner furnace body 37 is installed inside the drying oven 3. A heating mechanism 2 is installed on the outside of the drying oven 3. The heating mechanism 2 is used to improve the drying efficiency of the drying oven 3. An electric wire 9 is installed on the right side of the heating mechanism 2. A control cabinet 10 is installed at the end of the electric wire 9. A limit frame 7 is fixedly connected to the middle of the top wall of the cross brace 5. A motor 6 is fixedly connected to the inside of the limit frame 7.
[0033] Specifically, a fixed frame 1 is fixedly connected to the outside of the drying oven 3. A cross brace 5 is fixedly connected at equal intervals to the top of the fixed frame 1. A fixed plate 20 is fixedly connected to the left end of the cross brace 5. Multiple fixed columns 21 are fixedly connected at equal intervals to the right side of the fixed plate 20. A fixed block 23 is fixedly connected to the front of the fixed column 21. A motor 24 is fixedly connected to the right end of the fixed block 23. A gear 25 is fixedly connected to the output end of the motor 24. A crushing roller 26 is fixedly connected to the end of the gear 25. A receiving hopper 27 is installed on the top of the fixed column 21. A motor 33 is installed at the bottom of the fixed column 21. A fixed rod 32 is fixedly connected to the output end of the motor 33. The outer wall of the fixed rod 32... A support arm 31 is fixedly connected to the main body, and a damping rod 30 is rotatably connected to the end of the support arm 31. A filter screen 28 is fixedly connected to the end of the damping rod 30. Rollers 29 are fixedly connected to the four corners of the bottom of the filter screen 28. A sliding groove 36 is opened on the inner side of the bottom of the fixed column 21, and the rollers 29 are slidably connected inside the sliding groove 36. Waste batteries are fed into the receiving hopper 27 by the conveyor belt 17. The waste batteries fall into the crushing roller 26 for crushing. The crushed particles are screened by the vibration of the filter screen 28, so that the particles are evenly sprinkled in the drying oven 3, making the feeding more uniform. The filter screen 28 can screen out impurities and crush unqualified batteries, preventing the batteries from sticking together during the drying process.
[0034] Reference Figure 1 , Figure 2 and Figure 5 The heating mechanism 2 includes a hot air blower 201, which is located at the rear bottom of the drying oven 3. A motor 202 is installed on the lower right side of the hot air blower 201. Air guide pipes 209 are installed on both the left and right sides of the outer wall of the hot air blower 201. The ends of the air guide pipes 209 are connected to an air box 203. A grid plate 204 is installed on the inner side of the air box 203. Multiple connecting plates 205 are fixedly connected at equal intervals to the outer wall of the inner furnace body 37. A connecting rod 206 is fixedly connected to the middle of the connecting plate 205. A motor 207 is installed at the bottom end of the connecting rod 206. A fan 208 is installed at the output end of the motor 207. The output end of motor 6 is fixedly connected to a rotating shaft 22, and the bottom end of the rotating shaft 22 is fixedly connected to a stirring blade 35. The fan 208 around the inner furnace body 37 blows hot air to both ends to form a heat circulation, ensuring that the temperature of the inner furnace body 37 is uniform, making it easier for the moisture and volatiles in the battery to evaporate. When the crushed battery falls to the bottom of the inner furnace body 37, the stirring blade 35 rotates and stirs the battery fragments, stirring and dispersing the battery fragments to ensure the uniformity of the drying effect and improve the drying quality. The bottom middle of the drying oven 3 is fixedly connected to a discharge hopper 34, and the bottom right side of the discharge hopper 34 is connected to a discharge pipe 8.
[0035] Specifically, the heating mechanism 2 includes a hot air blower 201, which is located at the rear bottom of the drying oven 3. A motor 202 is installed on the lower right side of the hot air blower 201. Air guide pipes 209 are installed on both the left and right sides of the outer wall of the hot air blower 201. The ends of the air guide pipes 209 are connected to an air box 203. A grille 204 is installed on the inner side of the air box 203. Multiple connecting plates 205 are fixedly connected at equal intervals to the outer wall of the inner furnace body 37. A connecting rod 206 is fixedly connected to the middle of each connecting plate 205. A motor 202 is installed at the bottom end of the connecting rod 206. 07. A fan 208 is installed at the output end of motor 4 207. A rotating shaft 22 is fixedly connected to the output end of motor 1 6. A stirring blade 35 is fixedly connected to the bottom end of the rotating shaft 22. The fan 208 around the inner furnace body 37 blows hot air to both ends to form a heat circulation, ensuring that the temperature of the inner furnace body 37 is uniform, making it easier for the moisture and volatiles in the battery to evaporate. When the crushed battery falls to the bottom of the inner furnace body 37, the stirring blade 35 rotates and stirs the battery fragments, stirring and dispersing the battery fragments to ensure the uniformity of the drying effect and improve the drying quality.
[0036] Reference Figure 1 , Figure 2 and Figure 3 Two hinges 11 are installed on the left and right sides of the front side of the outer wall of the control cabinet 10. Inspection doors 12 are fixedly connected to the rear side of the multiple hinges 11. The inspection doors 12 facilitate the inspection, maintenance and upkeep of the device, and timely detection and handling of problems such as component wear, aging wiring and pipe blockage, to ensure the normal operation of the equipment. Handles 14 are fixedly connected to the left and right sides of the front side of the outer wall of the inspection door 12. Anti-slip sleeves 13 are rotatably connected to the outer side of the two handles 14.
[0037] Specifically, two hinges 11 are installed on the left and right sides of the front side of the outer wall of the control cabinet 10. Inspection doors 12 are fixedly connected to the rear side of the multiple hinges 11. The inspection doors 12 facilitate the inspection, maintenance and upkeep of the device, and timely detection and handling of problems such as component wear, aging wiring and pipe blockage, to ensure the normal operation of the equipment.
[0038] Working principle: A fixed rod 32 is fixedly connected to the output end of motor 5 33. A support arm 31 is fixedly connected to the middle of the outer wall of the fixed rod 32. A damping rod 30 is rotatably connected to the end of the support arm 31. A filter screen 28 is fixedly connected to the end of the damping rod 30. Rollers 29 are fixedly connected to the four corners of the bottom of the filter screen 28. A sliding groove 36 is opened on the inner side of the bottom of the fixed column 21. The rollers 29 slide inside the sliding groove 36. Waste batteries are fed into the receiving hopper 27 by the conveyor belt 17. The waste batteries fall into the crushing roller 26 for crushing. The crushed particles are screened by the vibration of the filter screen 28, so that the particles are evenly sprinkled in the drying oven 3, making the feeding more uniform. The filter screen 28 can screen out impurities and crush unqualified batteries, preventing the batteries from sticking together during the drying process.
[0039] Multiple connecting plates 205 are fixedly connected at equal intervals to the outer wall of the inner furnace body 37. A connecting rod 206 is fixedly connected to the middle of the connecting plate 205. A motor 207 is installed at the bottom of the connecting rod 206. A fan 208 is installed at the output end of the motor 207. The fan 208 around the inner furnace body 37 blows hot air to both ends to form a heat circulation, ensuring that the temperature of the inner furnace body 37 is uniform, making it easier for the moisture and volatiles in the battery to evaporate. When the crushed battery falls to the bottom of the inner furnace body 37, the stirring blade 35 rotates and stirs the battery fragments, stirring and dispersing the battery fragments to ensure the uniformity of the drying effect and improve the drying quality.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for drying and volatilizing waste lithium batteries after shredding, comprising a drying oven (3), characterized in that: A fixed frame (1) is fixedly connected to the outside of the drying oven (3). A cross brace (5) is fixedly connected at equal intervals to the top of the fixed frame (1). A fixed plate (20) is fixedly connected to the left end of the cross brace (5). Multiple fixed columns (21) are fixedly connected at equal intervals to the right side of the fixed plate (20). A fixed block (23) is fixedly connected to the front side of the fixed column (21). A motor (24) is fixedly connected to the right end of the fixed block (23). A gear (25) is fixedly connected to the output end of the motor (24). A crushing roller (26) is fixedly connected to the end of the gear (25). A receiving hopper (27) is installed on the top of the fixed column (21). A motor (33) is installed on the bottom of the fixed column (21). A fixed rod (32) is fixedly connected to the output end of the motor (33). A support arm (31) is fixedly connected to the middle of the outer wall of the fixed rod (32). The end of the support arm (31) is rotatably connected to... A damping rod (30) is connected to the end of the damping rod (30), and a filter screen (28) is fixedly connected to the end of the filter screen (28). Rollers (29) are fixedly connected to the four corners of the bottom of the filter screen (28). A sliding groove (36) is opened on the inner side of the bottom of the fixed column (21), and the rollers (29) are slidably connected inside the sliding groove (36). A top cover (4) is installed at the bottom of the cross brace (5). A support frame (15) is provided on the left side of the drying oven (3). A conveyor frame (16) is fixedly connected to the top of the support frame (15). A conveyor belt (17) is installed on the inner side of the conveyor frame (16). A baffle (19) is installed at the end of the conveyor belt (17). A controller (18) is installed in the middle of the support frame (15). An inner furnace body (37) is installed on the inner side of the drying oven (3). A heating mechanism (2) is installed on the outer side of the drying oven (3). The heating mechanism (2) is used to improve the drying efficiency of the drying oven (3).
2. The drying and volatilization device for shredding waste lithium batteries according to claim 1, characterized in that: The heating mechanism (2) includes a hot air blower (201), which is located at the bottom rear side of the drying oven (3). A motor (202) is installed on the lower right side of the hot air blower (201). Air guide pipes (209) are installed on both the left and right sides of the outer wall of the hot air blower (201). The end of the air guide pipe (209) is connected to a wind box (203). A grid plate (204) is installed on the inner side of the wind box (203). Multiple connecting plates (205) are fixedly connected at equal intervals on the outer wall of the inner furnace body (37). A connecting rod (206) is fixedly connected to the middle of the connecting plate (205). A motor (207) is installed at the bottom of the connecting rod (206). A fan (208) is installed at the output end of the motor (207).
3. The drying and volatilization device for shredding waste lithium batteries according to claim 2, characterized in that: A wire (9) is installed on the right side of the heating mechanism (2), and a control cabinet (10) is installed at the end of the wire (9).
4. The drying and volatilization device for shredding waste lithium batteries according to claim 1, characterized in that: A limiting frame (7) is fixedly connected to the middle of the top wall of the cross brace (5), and a motor (6) is fixedly connected to the inner side of the limiting frame (7).
5. The drying and volatilization device for shredding waste lithium batteries according to claim 4, characterized in that: The output end of the motor (6) is fixedly connected to a rotating shaft (22), and the bottom end of the rotating shaft (22) is fixedly connected to a stirring blade (35).
6. The drying and volatilization device for shredding waste lithium batteries according to claim 1, characterized in that: The bottom center of the drying oven (3) is fixedly connected to a discharge hopper (34), and the bottom right side of the discharge hopper (34) is connected to a discharge pipe (8).
7. The drying and volatilization device for shredding waste lithium batteries according to claim 3, characterized in that: Two hinges (11) are installed on the left and right ends of the front side of the outer wall of the control cabinet (10), and an inspection door (12) is fixedly connected to the rear side of each of the hinges (11).
8. The drying and volatilization device for shredding waste lithium batteries according to claim 7, characterized in that: The inspection door (12) has handles (14) fixedly connected to the left and right ends of the front side of the outer wall, and anti-slip sleeves (13) are rotatably connected to the outer sides of the two handles (14).