Lithium battery waste electrolyte treatment equipment and treatment method thereof
By designing a waste electrolyte treatment equipment for lithium batteries, the combination of turn vibration unit and heating wire is used to solve the problems of extended heating time and spontaneous combustion of organic solvents caused by battery debris accumulation, and a more efficient and safe electrolyte separation process is achieved.
Patent Information
- Application Number
- CN202411952589.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the heating and separation of electrolyte, the heating and separation time is longer due to the accumulation of battery debris during heating and separation. The longer heating time in high-temperature environments is very likely to cause the organic solvent to spontaneously ignite.
A waste electrolyte treatment equipment for lithium battery is designed, including a work box, feed pipe, air outlet pipe, heating wire and working plate. The turn vibration unit arranged in the work box drives the turn assembly and switch assembly through the driving assembly to realize the interval conveying and turning of the lithium battery fragment. The heating wire heats the broken material evenly to avoid accumulation.
Through uniform heating and spaced delivery, the separation time between the electrolyte and organic solvent is shortened, the risk of spontaneous combustion of organic solvents is avoided, and the treatment efficiency and safety are improved.
Smart Images

Figure CN119608721A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of waste lithium battery treatment, and in particular to a lithium battery waste electrolyte treatment device and a treatment method thereof. Background Art
[0002] Lithium battery electrolytes are mainly composed of high-value lithium salt electrolytes and organic solvents. Lithium salts are easily decomposed into toxic and harmful substances, while organic solvents are volatile and flammable. In addition, electrolytes account for 12%-15% of the mass of lithium-ion power batteries. If they can be recycled and reused, they can generate good economic and ecological benefits.
[0003] Patent No. CN113909267B discloses a waste lithium battery electrolyte treatment system and its treatment process, specifically a first processing frame and a second storage chamber, a support frame is provided on the outside of the bottom of the first processing frame, and a second processing frame is installed on the outside of the bottom of the support frame, a guide belt is provided in the middle of the outside of the bottom of the first processing frame, and a stabilizing frame is installed at one end of the outside of the bottom of the guide belt. This waste lithium battery electrolyte treatment system and its treatment process can utilize the design of the first storage chamber to collect the batteries after screening during use, and during the collection process, the design of the inclined plate can be used to transfer the battery debris to one side of the first storage chamber, and the design of the electric push rod can be used to drive the connecting plate to move, so that the battery debris placed in the first storage chamber can be squeezed through the movement of the connecting plate, which is convenient for collecting the battery debris and reducing the occupied space.
[0004] In the prior art, the battery is crushed by a crushing device, and the battery debris placed in the first storage cavity is squeezed by moving the connecting plate, so as to facilitate the collection of the battery debris and reduce the occupied space. However, the electrolyte treatment work in the battery is to heat the crushed battery debris at high temperature, and separate the electrolyte and organic solvent in the lithium battery by heating. Battery debris will accumulate during the heating and separation process, resulting in inconsistent battery debris electrolyte separation efficiency, which prolongs the heating time. The prolonged heating time in a high temperature environment is very likely to cause the organic solvent to spontaneously combust. The spontaneous combustion of the organic solvent will cause fires in recycling workshops, processing equipment, etc., causing economic losses and harm. Summary of the invention
[0005] The purpose of the present invention is to provide a lithium battery waste electrolyte treatment device and a treatment method thereof to solve the following technical problems: During the heating and separation process of the electrolyte, the accumulation of battery debris will prolong the heating and separation time. In a high-temperature environment, the prolonged heating time is very likely to cause the organic solvent to spontaneously combust.
[0006] The purpose of the present invention can be achieved through the following technical solutions: A lithium battery waste electrolyte treatment device, comprising a working box, a feed pipe, an air outlet pipe, a heating wire and a working plate; and also comprising a flipping vibration unit arranged in the working box; The feed pipe and the air outlet pipe are connected through the inner cavity of the working box; The heating wire is arranged inside the working box; The working plate is arranged inside the working box; The flipping and vibration unit is arranged in the working box, and includes a driving component, a flipping component, a switch component and a vibration component; the driving component drives the flipping component to move; the driving component drives the switch component to switch the feeding pipe; the driving component drives the vibration component to vibrate; The driving component drives the switch component to open and close the feed pipe so that the broken lithium battery fragments are transported to the working plate in the working box at intervals. At this time, the driving component drives the flipping component to flip the lithium battery fragments, allowing the heating wire to bake the lithium battery fragments, allowing the electrolyte and organic solvent on the lithium battery fragments to decompose and volatilize. The volatilized electrolyte and organic solvent are discharged through the exhaust pipe and then processed uniformly. The processed lithium battery fragments pass through the working plate through the vibration component.
[0007] Further, the driving assembly includes a first fixed block, a driving motor, a driving bevel gear, a first bevel gear and a driving shaft; The flip assembly includes an elliptical plate, a connecting block, a first sliding rod, a first spring and a flip block; Wherein, the first fixing block is fixedly arranged at the bottom of the working box; the driving motor is fixed to the first fixing block; the driving bevel gear is rotatably arranged at the other end of the first fixing block; the driving motor is connected to the first fixing block; the driving shaft is rotatably arranged in the working box, and the driving shaft passes through the bottom of the working box; the first bevel gear is fixedly arranged at one end of the driving shaft extending out of the working box; the first bevel gear is meshed with the driving bevel gear; The connecting block is fixedly arranged on the top of the working plate; there are four connecting blocks, which are respectively arranged at the four corners of the top of the working plate; the first sliding rod is fixedly arranged on the connecting block; the flipping block is slidably arranged on the first sliding rod; the first spring is sleeved on the first sliding rod, and the two ends of the first spring are respectively fixedly arranged on the connecting block and the flipping block; the elliptical plate is fixedly arranged on the driving shaft.
[0008] Further, the switch assembly includes a moving slot, a second sliding rod, a sliding door, a special-shaped block, a rotating plate and a third spring; Among them, the movable groove is opened on the inner side of the working box, and there are two movable grooves, which are respectively arranged on the upper and lower sides of the feed port; the second sliding rod is fixedly set in the movable groove; the sliding door is slidably set on the second sliding rod; the third spring is sleeved on the second sliding rod, and the two ends of the third spring are respectively fixed on the sliding door and the movable groove; the special-shaped block is fixedly set on the sliding door; the rotating plate is fixedly set on the driving shaft.
[0009] Further, the vibration assembly includes a second support block, a sliding column, a second spring, a tooth block and a top block; Among them, the second support block is fixedly arranged on the inner side of the working box, and there are four second support blocks, which are respectively arranged on both sides of the inside of the working box; the sliding column is slidably arranged on the second support block; the working plate is fixedly arranged on the top of the sliding column; the second spring is sleeved on the sliding column, and the two ends of the second spring are respectively fixedly arranged on the second support block and the sliding column; the tooth block is fixedly arranged on the bottom of the working plate; the top block is fixedly arranged on the driving shaft.
[0010] Furthermore, a second fixed block is fixedly connected to the bottom of the working box; the second fixed blocks are equidistantly and evenly arranged at the bottom of the working box; a connecting shaft is rotatably connected to the second fixed block; the end of the connecting shaft close to the inside of the working box is fixedly connected to the second bevel gear; the second bevel gear is meshed with the first bevel gear; the end of the connecting shaft located outside the working box is fixedly connected to a transmission gear; a discharge bin is fixedly connected to the bottom of the working box; a rotating shaft is rotatably connected in the discharge bin; a conveying disk is fixedly connected to the rotating shaft; the end of the rotating shaft located outside the working box is fixedly connected to a driven gear; the driven gear is meshed with the transmission gear.
[0011] Furthermore, a heating chamber is fixedly connected in the working box; two heating chambers are provided and are symmetrically arranged in the working box; and a heating wire is fixedly connected in the heating chamber.
[0012] Furthermore, a first support block is fixedly connected to the heating chamber; the drive shaft passes through the first support block; and a fan is fixedly connected to the top of the drive shaft.
[0013] A method for treating waste electrolyte of lithium batteries, the method comprising the following steps: S1: The crushed lithium battery material enters the working plate in the working box through the feeding pipe, and the heating wire in the working box is started to heat the lithium battery crushed material; S2: After the lithium battery fragments fall onto the working plate, the flipping block flips the lithium battery fragments on the working plate, so that the heating wire can evenly and quickly decompose and volatilize the electrolyte and organic solvent on the lithium battery fragments. The volatilized electrolyte and organic solvent are discharged through the air outlet pipe on the top of the working box and then processed uniformly; S3: The decomposed and volatilized lithium battery fragments will vibrate through the working plate and fall into the discharge bin at the bottom of the working box; the decomposed and volatilized lithium battery fragments will be transported out of the working box by the conveyor disc in the discharge bin.
[0014] Beneficial effects of the present invention: (1) The driving component drives the flipping component to move, so that the flipping component flips the lithium battery fragments on the working plate, so that the lithium battery fragments accumulated at the bottom are flipped up. This setting can make the lithium battery fragments on the working plate evenly heated, so that the electrolyte and organic solvent in the lithium battery fragments can be separated in a short time, avoiding the accumulation of lithium battery fragments, which makes the heating and separation time of the electrolyte and organic solvent longer, thereby causing the risk of spontaneous combustion of the organic solvent; (2) The driving component drives the switch component to switch the feed pipe, so that the lithium battery fragments are intermittently fed into the working plate in the working box. This is set up so that the lithium battery fragments entering the working box each time are equal and spaced, so that the heating wire in the working box can heat and separate the electrolyte and organic solvent in the lithium battery fragments more efficiently, and avoid the lithium battery fragments all entering the working box at once, resulting in a decrease in the efficiency of heating and separating the electrolyte and organic solvent in the lithium battery fragments; (3) After the separation of the electrolyte and organic solvent in the lithium battery fragments is completed, the driving component drives the vibration component to vibrate the working plate. There are a small number of holes on the working plate. The vibration will cause the lithium battery fragments to slowly move and fall into the holes on the working plate, and then enter the bottom of the working box through the holes on the working plate. This setting is to prevent the separated lithium battery fragments from being retained on the working plate, so that the working plate can free up corresponding space so that the working plate can accommodate more lithium battery fragments whose electrolyte and organic solvent have not been separated. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] Figure 1 A top perspective view of the exterior of the working box in the present invention; Figure 2 It is a transverse cross-sectional view of the interior of the working box in the present invention; Figure 3 A top perspective view of a flip vibration unit in the present invention; Figure 4 It is a longitudinal cross-sectional view of the interior of the working box in the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 It is a bottom-up stereoscopic diagram of the flipping vibration unit in the present invention; Figure 7 It is a bottom-up stereoscopic view of the exterior of the working box in the present invention.
[0017] Description of the drawings: 1. working box; 2. feeding pipe; 3. air outlet pipe; 4. driven gear; 5. transmission gear; 6. discharging bin; 7. conveying plate; 8. rotating shaft; 9. first fixed block; 10. driving motor; 11. driving bevel gear; 12. second fixed block; 13. connecting shaft; 14. fan; 15. heating bin; 16. first supporting block; 17. driving shaft; 18. sliding door; 19. special-shaped block; 20. connecting block; 21. first spring; 22. first sliding rod; 23. flipping block; 24. elliptical plate; 25. working plate; 26. second supporting block; 27. second spring; 28. sliding column; 29. tooth block; 30. top block; 31. first bevel gear; 32. second bevel gear; 33. heating wire; 34. third spring; 35. second sliding rod; 36. rotating plate; 37. moving groove. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] See also Figure 1-Figure 7 As shown, the present invention is a lithium battery waste electrolyte treatment device, comprising a working box 1, a feed pipe 2, an air outlet pipe 3, a heating wire 33 and a working plate 25; and also comprising a flipping vibration unit arranged in the working box 1; The feed pipe 2 and the air outlet pipe 3 are connected through the inner cavity of the working box 1; The heating wire 33 is arranged inside the working box 1; The working plate 25 is arranged inside the working box 1; The flipping and vibration unit is arranged in the working box 1, and includes a driving component, a flipping component, a switch component and a vibration component; the driving component drives the flipping component to move; the driving component drives the switch component to switch the feeding pipe 2; the driving component drives the vibration component to vibrate; The driving component drives the switch component to switch the feed pipe 2 so that the broken lithium battery fragments are transported to the working plate 25 in the working box 1 at intervals. At this time, the driving component drives the flipping component to flip the lithium battery fragments, so that the heating wire 33 bakes the lithium battery fragments, and the electrolyte and organic solvent on the lithium battery fragments are decomposed and volatilized. The volatilized electrolyte and organic solvent are discharged through the outlet pipe 3 and then processed uniformly. The processed lithium battery fragments are then passed through the working plate 25 by the vibration component; The waste lithium battery material is crushed by a crusher, and then conveyed through the feed pipe 2. The driving component in the working box 1 drives the switch component to switch the feed pipe 2, so that the lithium battery crushed materials are intermittently put into the working plate 25 in the working box 1. This arrangement is to ensure that the lithium battery crushed materials entering the working box 1 are equal in amount and at intervals each time, so that the heating wire 33 in the working box 1 can heat and separate the electrolyte and organic solvent in the lithium battery crushed materials more efficiently, and avoid the lithium battery crushed materials from all entering the working box 1 at once, resulting in a decrease in the efficiency of heating and separating the electrolyte and organic solvent in the lithium battery crushed materials; When the lithium battery scraps enter the working plate 25 and are heated, the driving component drives the flipping component to move, so that the flipping component flips the lithium battery scraps on the working plate 25, and the lithium battery scraps accumulated at the bottom are flipped up. This arrangement allows the lithium battery scraps on the working plate 25 to be evenly heated, so that the electrolyte and organic solvent in the lithium battery scraps are separated in a short time, and then the volatilized electrolyte and organic solvent are discharged from the working box 1 through the exhaust pipe 3, so as to avoid the accumulation of lithium battery scraps, which prolongs the heating and separation time of the electrolyte and organic solvent, thereby causing the risk of spontaneous combustion of the organic solvent; After the electrolyte and organic solvent in the lithium battery fragments are separated, the driving component drives the vibration component to vibrate the working plate 25. A small number of holes are opened on the working plate 25. The vibration will cause the lithium battery fragments to slowly move and fall into the holes on the working plate 25, and the lithium battery fragments will enter the bottom of the working box 1 through the holes on the working plate 25. This arrangement is to prevent the separated lithium battery fragments from being retained on the working plate 25, so that the working plate 25 can free up corresponding space so that the working plate 25 can accommodate more lithium battery fragments whose electrolyte and organic solvent have not been separated.
[0020] See also Figure 2 , Figure 3 and Figure 4 As shown, the driving assembly includes a first fixed block 9, a driving motor 10, a driving bevel gear 11, a first bevel gear 31 and a driving shaft 17; The flip assembly includes an elliptical plate 24, a connecting block 20, a first sliding rod 22, a first spring 21 and a flip block 23; Among them, the first fixing block 9 is fixedly arranged at the bottom of the working box 1; the driving motor 10 is fixed to the first fixing block 9; the driving bevel gear 11 is rotatably arranged at the other end of the first fixing block 9; the driving motor 10 is connected to the first fixing block 9; the driving shaft 17 is rotatably arranged in the working box 1, and the driving shaft 17 passes through the bottom of the working box 1; the first bevel gear 31 is fixedly arranged at one end of the driving shaft 17 extending out of the working box 1; the first bevel gear 31 is meshed with the driving bevel gear 11; The connecting block 20 is fixedly arranged on the top of the working plate 25; there are four connecting blocks 20, which are respectively arranged at the four corners of the top of the working plate 25; the first sliding rod 22 is fixedly arranged on the connecting block 20; the flipping block 23 is slidably arranged on the first sliding rod 22; the first spring 21 is sleeved on the first sliding rod 22, and the two ends of the first spring 21 are respectively fixedly arranged on the connecting block 20 and the flipping block 23; the elliptical plate 24 is fixedly arranged on the driving shaft 17; The driving motor 10 drives the driving bevel gear 11 to rotate, so that the driving bevel gear 11 drives the first bevel gear 31 and the driving shaft 17 to rotate. The rotation of the driving shaft 17 will cause the elliptical plate 24 to rotate. The rotating elliptical plate 24 will push the flipping block 23 to move along the first sliding rod 22. The flipping block 23 is provided with two, and the two flipping blocks 23 will be pushed to both sides by the elliptical plate 24 at the same time. The flipping block 23 will also compress the first spring 21 sleeved on the first sliding rod 22 while moving on the first sliding rod 22. When the elliptical plate 24 rotates to a position parallel to the flipping block 23, the flipping block 23 will no longer be subjected to the pressure of the elliptical plate 24. At this time, the first spring 21 will release the compressed elastic potential energy to move the flipping block 23, so that the flipping block 23 can move on the working plate 25. The flipping block 23 is set to a shape equivalent to a triangle, so that the flipping block 23 can flip the lithium battery crushed material on the working plate 25 back and forth to allow it to be evenly heated.
[0021] See also Figure 2 , Figure 4 and Figure 5 As shown, the switch assembly includes a moving slot 37, a second sliding rod 35, a sliding door 18, a special-shaped block 19, a rotating plate 36 and a third spring 34; The movable groove 37 is opened on the inner side of the working box 1, and two movable grooves 37 are provided, and are respectively arranged on the upper and lower sides of the feeding port; the second sliding rod 35 is fixedly provided in the movable groove 37; the sliding door 18 is slidably provided on the second sliding rod 35; the third spring 34 is sleeved on the second sliding rod 35, and the two ends of the third spring 34 are respectively fixed on the sliding door 18 and the movable groove 37; the special-shaped block 19 is fixedly provided on the sliding door 18; the rotating plate 36 is fixedly provided on the driving shaft 17; The rotating plate 36 is driven to rotate by the driving shaft 17, and the rotating rotating plate 36 will contact the special-shaped block 19 and move the special-shaped block 19. The moving special-shaped block 19 will drive the sliding door 18 to move along the direction of the second sliding rod 35 in the moving groove 37, so that the sliding door 18 is away from the pipe mouth of the feeding pipe 2, so that the lithium battery fragments in the feeding pipe 2 enter the working box 1. The movement of the sliding door 18 will stretch the third spring 34 sleeved on the second sliding rod 35, so that the third spring 34 is deformed. When the rotating plate 36 rotates to disengage from the special-shaped block 19, the third spring 34 will pull the sliding door 18 back, so that the sliding door 18 blocks the pipe mouth of the feeding pipe 2, so that the lithium battery fragments in the feeding pipe 2 no longer enter the working box 1, so that the intermittent delivery of the lithium battery fragments is achieved, and the lithium battery fragments will not be allowed to enter the working box 1 all at once.
[0022] See also Figure 2 , Figure 4 and Figure 6 As shown, the vibration assembly includes a second support block 26, a sliding column 28, a second spring 27, a tooth block 29 and a top block 30; The second support block 26 is fixedly arranged inside the working box 1, and there are four second support blocks 26, which are respectively arranged on both sides of the working box 1; the sliding column 28 is slidably arranged on the second support block 26; the working plate 25 is fixedly arranged on the top of the sliding column 28; the second spring 27 is sleeved on the sliding column 28, and the two ends of the second spring 27 are respectively fixedly arranged on the second support block 26 and the sliding column 28; the tooth block 29 is fixedly arranged on the bottom of the working plate 25; the top block 30 is fixedly arranged on the driving shaft 17; The driving shaft 17 rotates to drive the top block 30 to rotate, and the rotating top block 30 will lift the tooth block 29 under the working plate 25, so that the working plate 25 and the sliding column 28 move upward, and the moving sliding column 28 will compress the second spring 27 sleeved thereon. When the top block 30 rotates to the recessed position on the tooth block 29, the second spring 27 will make the sliding column 28 and the working plate 25 move downward, and make the working plate 25 hit the second supporting block 26 fixed on the working box 1, so that the working plate 25 vibrates and the dried and separated lithium battery fragments on the working plate 25 fall into the bottom of the working box 1 through the holes of the working plate 25.
[0023] See also Figure 2 , Figure 6 and Figure 7 As shown, a second fixed block 12 is fixedly connected to the bottom of the working box 1; the second fixed blocks 12 are evenly and equidistantly arranged at the bottom of the working box 1; a connecting shaft 13 is rotatably connected to the second fixed block 12; a second bevel gear 32 is fixedly connected to the end of the connecting shaft 13 close to the inside of the working box 1; the second bevel gear 32 is meshed with the first bevel gear 31; a transmission gear 5 is fixedly connected to the end of the connecting shaft 13 located outside the working box 1; a discharge bin 6 is fixedly connected to the bottom of the working box 1; a rotating shaft 8 is rotatably connected in the discharge bin 6; a conveying disc 7 is fixedly connected to the rotating shaft 8; a driven gear 4 is fixedly connected to the end of the rotating shaft 8 located outside the working box 1; the driven gear 4 is meshed with the transmission gear 5; The rotating first bevel gear 31 will drive the second bevel gear 32 to rotate, and the rotating second bevel gear 32 will rotate the connecting shaft 13 and the transmission gear 5. The transmission gear 5 is meshed with the driven gear 4, so the driven gear 4 will also rotate with the transmission gear 5, so that the conveying disk 7 and the rotating shaft 8 in the discharge bin 6 at the bottom of the working box 1 are rotated, and the rotating conveying disk 7 will push the fallen lithium battery fragments, so that the lithium battery fragments can be transported out of the discharge bin 6. The discharge bin 6 is set to a trapezoidal structure, so that the fallen lithium battery fragments slide to the bottom of the discharge bin 6, allowing the conveying disk 7 to better transport the lithium battery fragments out of the discharge bin 6 and enter the next link for processing. The second fixed block 12 supports the connecting shaft 13 and the transmission gear 5.
[0024] See also Figure 2 , Figure 4 and Figure 5 As shown, a heating chamber 15 is fixedly connected in the working box 1; two heating chambers 15 are provided and symmetrically arranged in the working box 1; a heating wire 33 is fixedly connected in the heating chamber 15; The heating wire 33 is arranged in the heating chamber 15. The heating wire 33 in the heating chamber 15 is heated by an external power supply to release heat energy. Two heating wires are arranged to increase the drying temperature in the working box 1 faster.
[0025] See also Figure 2 , Figure 3 and Figure 4 As shown, the heating chamber 15 is fixedly connected to a first support block 16; the driving shaft 17 passes through the first support block 16; the top of the driving shaft 17 is fixedly connected to a fan 14; The driving shaft 17 rotates to drive the fan 14 to rotate. The rotating fan 14 blows the volatilized electrolyte and organic solvent into the exhaust pipe 3, allowing the electrolyte and organic solvent to be discharged faster. The first support block 16 supports and stabilizes the driving shaft 17 to prevent the driving shaft 17 from shaking due to the rotation of the fan 14.
[0026] See also Figures 1 to 7 As shown, a method for treating waste electrolyte of lithium batteries comprises the following steps: S1: The crushed lithium battery material enters the working plate 25 in the working box 1 through the feeding pipe 2, and the heating wire 33 in the working box 1 is started to heat the lithium battery crushed material; S2: After the lithium battery fragments fall onto the working plate 25, the flipping block 23 flips the lithium battery fragments on the working plate 25, so that the heating wire 33 can evenly and quickly decompose and volatilize the electrolyte and organic solvent on the lithium battery fragments, and the volatilized electrolyte and organic solvent are discharged through the air outlet pipe 3 at the top of the working box 1, and then uniformly processed; S3: The decomposed and volatilized lithium battery fragments will vibrate through the working plate 25 and fall into the discharge bin 6 at the bottom of the working box 1 ; the decomposed and volatilized lithium battery fragments will be transported out of the working box 1 by the conveying disk 7 in the discharge bin 6 .
[0027] The working principle of the present invention is as follows: the waste lithium battery material is crushed by a crusher, and then conveyed through a feed pipe 2 after crushing. The driving component in the working box 1 drives the switch component to switch the feed pipe 2, so that the lithium battery crushed materials are intermittently put into the working plate 25 in the working box 1. This arrangement is to ensure that the lithium battery crushed materials entering the working box 1 are equal in amount and at intervals each time, so that the heating wire 33 in the working box 1 can heat and separate the electrolyte and organic solvent in the lithium battery crushed materials more efficiently, and avoid the lithium battery crushed materials all entering the working box 1 at once, resulting in a decrease in the efficiency of heating and separating the electrolyte and organic solvent in the lithium battery crushed materials; When the lithium battery scraps enter the working plate 25 and are heated, the driving component drives the flipping component to move, so that the flipping component flips the lithium battery scraps on the working plate 25, and the lithium battery scraps accumulated at the bottom are flipped up. This arrangement allows the lithium battery scraps on the working plate 25 to be evenly heated, so that the electrolyte and organic solvent in the lithium battery scraps are separated in a short time, and then the volatilized electrolyte and organic solvent are discharged from the working box 1 through the exhaust pipe 3, so as to avoid the accumulation of lithium battery scraps, which prolongs the heating and separation time of the electrolyte and organic solvent, thereby causing the risk of spontaneous combustion of the organic solvent; After the electrolyte and organic solvent in the lithium battery fragments are separated, the driving component drives the vibration component to vibrate the working plate 25. A small number of holes are opened on the working plate 25. The vibration will cause the lithium battery fragments to slowly move and fall into the holes on the working plate 25, and the lithium battery fragments will enter the bottom of the working box 1 through the holes on the working plate 25. This arrangement is to prevent the separated lithium battery fragments from being retained on the working plate 25, so that the working plate 25 can free up corresponding space so that the working plate 25 can accommodate more lithium battery fragments whose electrolyte and organic solvent have not been separated.
[0028] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.
Claims
1. A lithium battery waste electrolyte treatment device, comprising a working box (1), a feed pipe (2), an air outlet pipe (3), a heating wire (33) and a working plate (25); characterized in that: It also includes a flipping and vibration unit arranged in the working box (1); The feed pipe (2) and the air outlet pipe (3) are connected to each other through the inner cavity of the working box (1); The heating wire (33) is arranged inside the working box (1); The working plate (25) is arranged inside the working box (1); The flipping and vibration unit is arranged in the working box (1), and comprises a driving component, a flipping component, a switch component and a vibration component; the driving component drives the flipping component to move; the driving component drives the switch component to switch the feed pipe (2); the driving component drives the vibration component to vibrate; The drive component drives the switch component to open and close the feed pipe (2) so that the crushed lithium battery fragments are transported to the working plate (25) in the working box (1) at intervals. At this time, the drive component drives the flipping component to flip the lithium battery fragments, allowing the heating wire (33) to bake the lithium battery fragments, so that the electrolyte and organic solvent on the lithium battery fragments are decomposed and volatilized. The volatilized electrolyte and organic solvent are discharged through the exhaust pipe (3) and then processed uniformly. The processed lithium battery fragments are then passed through the working plate (25) by the vibration component.
2. The lithium battery waste electrolyte treatment equipment according to claim 1, characterized in that: The driving assembly comprises a first fixed block (9), a driving motor (10), a driving bevel gear (11), a first bevel gear (31) and a driving shaft (17); The flipping assembly comprises an elliptical plate (24), a connecting block (20), a first sliding rod (22), a first spring (21) and a flipping block (23); The first fixing block (9) is fixedly arranged at the bottom of the working box (1); the driving motor (10) is fixed to the first fixing block (9); the driving bevel gear (11) is rotatably arranged at the other end of the first fixing block (9); the driving motor (10) is connected to the first fixing block (9); the driving shaft (17) is rotatably arranged in the working box (1), and the driving shaft (17) passes through the bottom of the working box (1); the first bevel gear (31) is fixedly arranged at one end of the driving shaft (17) extending out of the working box (1); the first bevel gear (31) is meshed with the driving bevel gear (11); The connecting block (20) is fixedly arranged on the top of the working plate (25); four connecting blocks (20) are provided, and are respectively arranged at the four corners of the top of the working plate (25); the first sliding rod (22) is fixedly arranged on the connecting block (20); the flipping block (23) is slidably arranged on the first sliding rod (22); the first spring (21) is sleeved on the first sliding rod (22), and the two ends of the first spring (21) are respectively fixedly arranged on the connecting block (20) and the flipping block (23); the elliptical plate (24) is fixedly arranged on the driving shaft (17).
3. A lithium battery waste electrolyte treatment device according to claim 2, characterized in that: The switch assembly comprises a moving groove (37), a second sliding rod (35), a sliding door (18), a special-shaped block (19), a rotating plate (36) and a third spring (34); The movable groove (37) is opened on the inner side of the working box (1), and two movable grooves (37) are provided, and are respectively arranged on the upper and lower sides of the feed port; the second sliding rod (35) is fixedly provided in the movable groove (37); the sliding door (18) is slidably provided on the second sliding rod (35); the third spring (34) is sleeved on the second sliding rod (35), and the two ends of the third spring (34) are respectively fixed on the sliding door (18) and the movable groove (37); the special-shaped block (19) is fixedly provided on the sliding door (18); and the rotating plate (36) is fixedly provided on the driving shaft (17).
4. The lithium battery waste electrolyte treatment equipment according to claim 3, characterized in that: The vibration assembly comprises a second support block (26), a sliding column (28), a second spring (27), a tooth block (29) and a top block (30); The second support block (26) is fixedly arranged inside the working box (1), and four second support blocks (26) are provided, which are respectively arranged on both sides of the working box (1); the sliding column (28) is slidably arranged on the second support block (26); the working plate (25) is fixedly arranged on the top of the sliding column (28); the second spring (27) is sleeved on the sliding column (28), and the two ends of the second spring (27) are respectively fixedly arranged on the second support block (26) and the sliding column (28); the tooth block (29) is fixedly arranged on the bottom of the working plate (25); and the top block (30) is fixedly arranged on the driving shaft (17).
5. A lithium battery waste electrolyte treatment device according to claim 4, characterized in that: The bottom of the working box (1) is fixedly connected to a second fixed block (12); the second fixed blocks (12) are evenly and equidistantly arranged at the bottom of the working box (1); a connecting shaft (13) is rotatably connected to the second fixed block (12); an end of the connecting shaft (13) close to the inside of the working box (1) is fixedly connected to a second bevel gear (32); the second bevel gear (32) meshes with the first bevel gear (31); an end of the connecting shaft (13) located outside the working box (1) is fixedly connected to a transmission gear (5); a discharge bin (6) is fixedly connected to the bottom of the working box (1); a rotating shaft (8) is rotatably connected inside the discharge bin (6); a conveying disc (7) is fixedly connected to the rotating shaft (8); an end of the rotating shaft (8) located outside the working box (1) is fixedly connected to a driven gear (4); the driven gear (4) meshes with the transmission gear (5).
6. The lithium battery waste electrolyte treatment equipment according to claim 5, characterized in that: A heating chamber (15) is fixedly connected to the working box (1); two heating chambers (15) are provided and are symmetrically arranged in the working box (1); and a heating wire (33) is fixedly connected to the heating chamber (15).
7. The lithium battery waste electrolyte treatment equipment according to claim 6, characterized in that: A first support block (16) is fixedly connected to the heating chamber (15); the drive shaft (17) passes through the first support block (16); and a fan (14) is fixedly connected to the top of the drive shaft (17).
8. A method for treating waste electrolyte of lithium batteries, using a waste electrolyte treatment device of lithium batteries according to any one of claims 1 to 7, characterized in that: The processing method comprises the following steps: S1: The crushed lithium battery material enters the working plate (25) in the working box (1) through the feeding pipe (2), and at the same time, the heating wire (33) in the working box (1) is started to heat the lithium battery crushed material; S2: After the lithium battery fragments fall onto the working plate (25), the flipping block (23) flips the lithium battery fragments on the working plate (25), so that the heating wire (33) can evenly and quickly decompose and volatilize the electrolyte and organic solvent on the lithium battery fragments. The volatilized electrolyte and organic solvent are discharged through the air outlet pipe (3) at the top of the working box (1) and then uniformly processed; S3: The decomposed and volatilized lithium battery fragments will vibrate through the working plate (25) and fall into the discharge bin (6) at the bottom of the working box (1); the decomposed and volatilized lithium battery fragments will be transported out of the working box (1) by the conveying plate (7) in the discharge bin (6).
Citation Information
Patent Citations
A waste lithium battery electrolyte treatment system and its treatment process
CN113909267B