A lithium battery production waste gas treatment and recovery device

Abstract

The present invention relates to a lithium battery production waste gas treatment and recovery device, which relates to the field of waste gas treatment technology. The device comprises a body and a gas collecting pipe, wherein the body is provided with a treatment tank, the gas collecting pipe is arranged on the body and inserted into the treatment tank, the inner wall of the treatment tank is provided with a treatment block, the treatment block is provided with a mounting slot, a filter block is inserted into the mounting slot, the filter block is provided with a zeolite adsorption layer, the gas collecting pipe is connected to the treatment block and communicates with the mounting slot, the body is provided with a replacement slot communicated with the mounting slot, the filter block and the zeolite adsorption layer can pass through the replacement slot, the body is provided with a closure member, and the closure member is used to seal the replacement slot. The present application has the effect of facilitating the replacement of zeolite.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment and recovery device for lithium battery production. Background Art

[0002] With the rapid development of lithium battery technology, lithium batteries have been widely used in mobile phones, computers, cars, electric vehicles, satellites, space shuttles and other fields due to their small size, light weight, high energy density and long service life, bringing convenience to our work and life. At the same time, lithium battery factories often use NMP as an organic solvent in the battery production process, which will produce waste gas containing a large amount of NMP during the drying process, posing a great harm to operators and the environment. Therefore, the waste gas from lithium battery production must be purified by waste gas treatment equipment before it can be safely discharged.

[0003] In the existing technology, wheel adsorption and desorption are often used to recover NMP waste gas. The zeolite adsorption method is mostly used. After the waste gas is collected, it is guided through a waste gas pipe with a zeolite adsorption layer. The zeolite adsorbs the NMP component in the waste gas to complete the waste gas treatment.

[0004] However, in actual practical application, the adsorption capacity of the zeolite layer will decrease after long-term use. At the same time, it may be worn or otherwise damaged during use, which will affect the exhaust gas treatment effect and need to be replaced. However, the existing technology requires disassembling the exhaust gas pipe for replacement, which is very inconvenient. Summary of the Invention

[0005] In order to facilitate the replacement of zeolite, the present application provides a lithium battery production waste gas treatment and recovery device.

[0006] The present application provides a lithium battery production waste gas treatment and recovery device that adopts the following technical solutions:

[0007] A lithium battery production waste gas treatment and recovery device includes a body and a gas collecting pipe, the body is provided with a treatment tank, the gas collecting pipe is arranged on the body and inserted into the treatment tank, the inner wall of the treatment tank is provided with a treatment block, the treatment block is provided with a mounting groove, a filter block is inserted in the mounting groove, the filter block is provided with a zeolite adsorption layer, the gas collecting pipe is connected to the treatment block and communicates with the mounting groove, the body is provided with a replacement groove communicated with the mounting groove, the filter block and the zeolite adsorption layer can pass through the replacement groove, and the body is provided with a closing member, which is used to close the replacement groove.

[0008] By adopting the above technical solution, the sealing member cooperates with the replacement slot to quickly remove the filter block provided with the zeolite adsorption layer from the processing block installation slot for replacement, without the need to disassemble the entire body. The operation is simple and convenient, and the zeolite layer can be easily replaced.

[0009] Preferably, the machine body is provided with a driving assembly, and the driving assembly is used to drive the zeolite adsorption layer to rotate in the installation groove.

[0010] By adopting the above technical solution, the driving component is used to drive the filter block to rotate, so that the zeolite adsorption layer rotates with the filter block, so that the zeolite adsorption layer adsorbs the exhaust gas discharged from the gas collecting pipe more evenly, reducing the uneven adsorption of the zeolite adsorption layer, resulting in saturated adsorption at some positions and unsaturated adsorption at some positions, reducing the possibility of reducing the filtration and adsorption effect, thereby affecting the exhaust gas treatment, and improving the stability of the exhaust gas treatment.

[0011] Preferably, the body is provided with a recovery pipe, which is inserted into the processing tank and connected to the processing block and communicated with the installation tank. The body is provided with a gas supply component, which is used to supply gas to the installation tank. The body is provided with a liquefier connected to the recovery pipe, and the liquefier is used to liquefy the gas discharged from the recovery pipe.

[0012] By adopting the above technical solution, the gas supply component supplies gas with a certain temperature into the installation tank to desorb the NMP adsorbed in the zeolite adsorption layer, and the gas enters the recovery pipe and is discharged into the liquefier to liquefy into NMP liquid, thereby being recycled and reused, reducing raw material consumption, and being environmentally friendly and energy-saving.

[0013] Preferably, the air supply assembly includes an air supply pipe, an air collection pipe and a heater. The air supply pipe and the air collection pipe are both arranged in a processing tank. The heater is arranged in the processing tank and is connected to both the air supply pipe and the air collection pipe. The heater is used to absorb the gas in the air collection pipe and discharge it into the air supply pipe after heating. The processing block is provided with a first working chamber and a second working chamber communicated with the mounting groove. The first working chamber is connected to the air collecting pipe and the air collection pipe, and the second working chamber is connected to the air supply pipe and the recovery pipe.

[0014] By adopting the above technical solution, the heater collects part of the exhaust gas after NMP is adsorbed by the zeolite adsorption layer in the first working chamber of the intake pipe, and discharges it into the second working chamber after heating to desorb the NMP adsorbed by the zeolite adsorption layer, forming a high-concentration NMP gas and discharging it into the recovery pipe for recovery. The gas is recycled and utilized, thereby facilitating use and saving energy consumption.

[0015] Preferably, the drive assembly includes a drive motor and a drive shaft, the drive motor is arranged in the processing tank, the drive motor shaft is provided with a movable groove, the drive shaft is slidably arranged in the movable groove and is connected to the drive motor by clamping, the processing block is provided with a drive groove communicating with the mounting groove, the drive shaft is slidably inserted into the drive groove and can rotate in the drive groove, the filter block is provided with a rotating groove, the drive shaft is slidably inserted into the rotating groove and is connected to the filter block by clamping.

[0016] By adopting the above technical solution, after the driving motor is started, the nickel coin in the moving slot presses against the driving shaft, thereby driving the driving shaft to rotate. The driving shaft presses against the inner wall of the rotating slot and pushes the filter block to rotate. At the same time, when the filter block needs to be replaced, the driving shaft is pushed to move out of the rotating slot, the filter block is taken out of the replacement slot, and the new filter block is inserted into the installation slot through the replacement slot, and the driving shaft is pushed to insert into the rotating slot. The operation is simple and convenient, and it is easy to use.

[0017] Preferably, the machine body is provided with a sliding groove connected to the processing tank, a first sliding block is slidably arranged in the sliding groove, a second sliding block connected to the first sliding block is slidably arranged in the processing tank, the drive shaft passes through the second sliding block, and an abutment block is provided on the drive shaft, and the second sliding block can abut against the abutment block.

[0018] By adopting the above technical solution, pushing the first sliding block to slide can drive the second sliding block to slide, thereby driving the drive shaft to move by pushing the abutment block. The operation is simple and convenient, and the drive shaft is enclosed in the processing tank to reduce the possibility of damage to the drive shaft caused by collision.

[0019] Preferably, the gas collecting pipe and the recovery pipe both pass through the second sliding block.

[0020] By adopting the above technical solution, the second sliding block is penetrated by the gas collecting pipe and the recovery pipe, and the second sliding block slides along the gas collecting pipe and the recovery pipe, thereby improving the sliding stability of the second sliding block and reducing the possibility of the second sliding block being offset and stuck.

[0021] Preferably, the machine body is provided with a closing groove which is in communication with both the sliding groove and the replacement groove, the closing member is a closing block which is slidably arranged in the closing groove, the closing block is connected to the first sliding block, and the closing block is against the filter block.

[0022] By adopting the above technical solution, when the first sliding block slides, it drives the closing block and the driving shaft to slide synchronously, thereby completing the operation of the driving shaft disengaging from the rotating groove and the closing block leaving the closing groove and the replacement groove, thereby improving the convenience of replacing the filter block.

[0023] Preferably, the body is provided with an auxiliary groove communicating with the processing groove, a third sliding block connected to the second sliding block is slidably provided in the auxiliary groove, the body is provided with a pushing groove communicating with the auxiliary groove, a pushing block slidably provided in the pushing groove and capable of abutting the third sliding block, a pushing spring is provided in the pushing groove and connected to the pushing block, the body is provided with a first locking groove communicating with the pushing groove, a first locking block is slidably provided in the first locking groove, the pushing block is provided with a first locking slot for inserting the first locking block, the body is provided with a second locking groove communicating with the closed groove, a second locking block is slidably provided in the second locking groove, the closing block is provided with a second locking slot for inserting the second locking block, and a transmission assembly is provided between the first locking block and the second locking block, the transmission assembly is used for transmitting and connecting the first locking block and the second locking block.

[0024] By adopting the above technical solution, when the filter block needs to be replaced, the first locking block is pushed to slide out of the first locking slot. During this process, the second locking block is disengaged from the second locking slot through the transmission of the transmission assembly. At this time, the spring is pushed to restore and push the pushing block to slide, thereby driving the second sliding block to slide through the third sliding block, so that the drive shaft is disengaged from the rotating slot. At the same time, the closing block is driven to slide by the first sliding block to expose the replacement slot for replacing the filter block. The operation is simple and convenient. The first locking block is inserted into the first locking slot of the pushing block and the second locking block is inserted into the second locking slot of the closing block, thereby improving the stability of the filter block rotation during normal operation of the equipment.

[0025] Preferably, the transmission assembly includes a first transmission rack, a second transmission rack, a first transmission gear and a second transmission gear. The body is provided with a transmission cavity which is in communication with the first locking groove and the second locking groove. The first transmission gear and the second transmission gear are both rotatably arranged in the transmission cavity and mesh with each other. The first transmission rack is connected to the first locking block and inserted into the transmission cavity to mesh with the first transmission gear. The second transmission rack is connected to the second locking block and inserted into the transmission cavity to mesh with the second transmission gear.

[0026] By adopting the above technical solution, when the first locking block slides out of the first locking slot, the first transmission rack drives the first transmission gear to rotate, and then drives the second transmission gear to rotate, and the second transmission rack drives the second locking block out of the second locking slot to complete the transmission, thereby improving the convenience of use.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The machine body, gas collecting pipe, treatment tank, treatment block, installation tank, filter block, zeolite adsorption layer, closure and replacement tank are arranged. The gas collecting pipe in the treatment tank of the machine body discharges the exhaust gas into the treatment block installation tank, and the zeolite adsorption layer on the filter block adsorbs NMP to treat the exhaust gas. When the adsorption capacity of the zeolite adsorption layer decreases after a long period of use, the closure is removed and the filter block is taken out through the replacement tank for replacement without disassembling the machine body, which improves the convenience of zeolite replacement.

[0029] 2. By arranging a recovery pipe, a liquefier, an air supply pipe, an air intake pipe, a heater, a first working chamber, and a second working chamber, the exhaust gas in the gas collecting pipe adsorbs and removes NMP in the first working chamber. Part of the gas enters the heater through the air intake pipe for heating and then enters the second working chamber through the air supply pipe, where NMP is desorbed to form NMP gas. The gas then enters the liquefier through the recovery pipe to be liquefied into NMP liquid for recycling, thereby saving raw materials.

[0030] 3. By setting a drive motor, a drive shaft, a movable slot, a drive slot and a rotating slot, the drive shaft is connected to the drive motor shaft through the movable slot, the drive shaft is inserted into the processing block through the drive slot, and is connected to the filter block through the rotating slot, thereby transmitting the drive motor and the filter block, so that the drive motor can drive the filter block to rotate, and at the same time, after pushing the drive shaft so that the drive shaft is out of the rotating slot, the filter block can be taken out of the replacement slot for replacement, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an overall schematic diagram of a lithium battery production waste gas treatment and recovery device provided in an embodiment of the present application.

[0032] Figure 2 It is a cross-sectional view used to show the internal structure of the body.

[0033] Figure 3 yes Figure 2 Magnified view of area A in center.

[0034] Figure 4 It is a cross-sectional view used to reflect the structure of the transmission component.

[0035] Explanation of reference numerals: 1. body; 11. processing tank; 12. sliding tank; 13. replacement tank; 14. closing tank; 15. pushing tank; 16. auxiliary tank; 17. first locking tank; 18. second locking tank; 19. transmission chamber; 2. processing block; 21. mounting tank; 22. first working chamber; 23. second working chamber; 24. driving tank; 25. filter block; 251. zeolite adsorption layer; 252. rotating tank; 3. gas collecting pipe; 31. exhaust pipe; 32. recovery pipe; 321. liquefier; 4. gas supply assembly; 41. gas supply pipe; 42. gas collection pipe; 4 3. Heater; 5. Driving assembly; 51. Driving motor; 511. Moving groove; 512. Connecting spring; 52. Driving shaft; 521. Abutment block; 6. First sliding block; 61. Second sliding block; 62. Third sliding block; 63. Closing block; 631. Second locking slot; 7. Pushing block; 71. Pushing spring; 72. First locking slot; 8. First locking block; 81. Auxiliary spring; 82. Second locking block; 9. Transmission assembly; 91. First transmission gear; 92. Second transmission gear; 93. First transmission rack; 94. Second transmission rack. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The present application discloses a lithium battery production waste gas treatment and recovery device. Figure 1 and Figure 2 The invention comprises a rectangular body 1 and an air collecting pipe 3 connected to the body 1. A treatment tank 11 is provided in the body 1, and the air collecting pipe 3 is inserted into the treatment tank 11. A mounting block is fixedly provided on the inner wall of the treatment tank 11, and a mounting groove 21 is provided inside the mounting block. A circular filter block 25 is adapted to be rotatably inserted into the mounting groove 21. The filter block 25 is provided with an annular zeolite adsorption layer 251 for adsorbing NMP. The thickness of the zeolite adsorption layer 251 is consistent with that of the filter block 25. The filter block 25 is provided with a first working chamber 22 communicating with the mounting groove 21. The air collecting pipe 3 is connected to the treatment block 2 and inserted into the first working chamber 22. The body 1 is provided with an exhaust pipe 31 inserted into the treatment tank 11. The exhaust pipe 31 is connected to the treatment block 2 and inserted into the first working chamber 22. The air collecting pipe 3 and the exhaust pipe 31 are provided on both sides of the filter block 25. The body 1 is provided with a driving assembly 5 for driving the filter block 25 to rotate in the mounting groove 21. The waste gas produced by lithium batteries is filtered for impurities by an external filter device, and then collected into the first working chamber 22 via the gas collecting pipe 3 through an exhaust pump or other power device. The waste gas discharged from the gas collecting pipe 3 is treated by adsorbing NMP through the rotating zeolite adsorption layer 251, and the treated waste gas is discharged through the exhaust pipe 31 to achieve NMP treatment of the waste gas.

[0038] To improve the convenience of zeolite replacement, refer to Figure 1 and Figure 2 The top wall of the housing 1 is provided with a replacement slot 13 that communicates with the mounting slot 21 of the processing block 2. The filter block 25 and the zeolite adsorption layer 251 can pass through the replacement slot 13. The housing 1 is provided with a sealing slot 14 that communicates with the replacement slot 13. A sealing block 63 is slidably installed within the sealing slot 14 to seal the replacement slot 13. After the sealing block 63 is slid out of the replacement slot 13, the filter block 25 can be removed from the mounting slot 21 for replacement, improving the convenience of zeolite replacement. In another embodiment, an annular groove is provided on the outer wall of the filter block 25 to facilitate the removal of the filter block 25 from the mounting slot 21.

[0039] For recycling, refer to Figure 1 and Figure 2 The body 1 is provided with a recovery pipe 32 inserted into the processing tank 11. A liquefier 321 connected to the recovery pipe 32 is fixedly provided on the top wall of the body 1. The liquefier 321 is used to liquefy the gas discharged from the recovery pipe 32 by condensation, pressurization or other means. The body 1 is provided with an air supply assembly 4 for supplying air. The air supply assembly 4 includes an air supply pipe 41, an air collection pipe 42 and a heater 43. The heater 43 is arranged in the processing tank 11. The air supply pipe 41 and the air collection pipe 42 are both arranged in the processing tank 11 and are both connected to the heater 43. The heater 43 is used to absorb the gas in the air collection pipe 42 and discharge it into the air supply pipe 41 after heating. The processing block 2 is provided with a second working chamber 23 connected to the mounting groove 21. The recovery pipe 32 and the air supply pipe 41 are both connected to the processing block 2 and connected to the second working chamber 23. The recovery pipe 32 and the air supply pipe 41 are arranged on both sides of the filter block 25. Air collection pipe 42 is located on the side of filter block 25 away from gas collection pipe 3. It is connected to treatment block 2 and communicates with first working chamber 22. After NMP is adsorbed on the exhaust gas in gas collection pipe 3, a portion of the gas enters heater 43 through air collection pipe 42 for heating. It is then discharged into second working chamber 23 through air supply pipe 41. It desorbs NMP adsorbed on rotating zeolite adsorption layer 251 and enters liquefier 321 through recovery pipe 32, where it is liquefied into liquid NMP for recycling.

[0040] For ease of use, refer to Figure 2 and Figure 3The drive assembly 5 includes a drive motor 51 and a square drive shaft 52. The drive motor 51 is fixedly installed in the processing tank 11 of the machine body 1 through a bracket. The rotating shaft of the drive motor 51 is provided with a square movable groove 511. The drive shaft 52 is adapted to be slidably arranged in the movable groove 511 and is connected to the drive motor 51 by snapping. The side wall of the processing block 2 is provided with a drive groove 24 that communicates with the installation groove 21. The side length of the drive groove 24 is greater than the side length of the drive shaft 52. The drive shaft 52 is slidably inserted into the drive groove 24 and can rotate in the drive groove 24. A square rotation groove 252 is provided through the center of the filter frame. The drive shaft 52 is adapted to be slidably inserted into the rotation groove 252 and is connected to the filter block 25 by snapping. The drive motor 51 drives the drive shaft 52 to rotate, and then drives the filter block 25 to rotate. At the same time, when the filter block 25 needs to be replaced, the drive shaft 52 can be pushed out of the rotation groove 252, which is convenient for use.

[0041] For ease of use, refer to Figure 2 and Figure 3 The top wall of the machine body 1 is provided with a sliding groove 12 which is in communication with both the processing tank 11 and the closing tank 14. A first sliding block 6 fixedly connected to the closing block 63 is adapted to slide in the sliding groove 12. A second sliding block 61 fixedly connected to the first sliding block 6 is slidably provided in the processing tank 11. The drive shaft 52 passes through the second sliding block 61 and can slide relative to the second sliding block 61. The gas collecting pipe 3 and the recovery pipe 32 pass through the second sliding block 61 so that the second sliding block 61 can slide along the gas collecting pipe 3 and the recovery pipe 32. An annular abutment block 521 is provided on the fixed sleeve of the drive shaft 52. The second sliding block 61 is provided between the abutment block 521 and the processing block 2 and can abut against the abutment block 521. A connecting spring 512 is provided between the end of the rotating shaft of the drive motor 51 and the side of the abutment block 521 away from the processing block 2. The driving motor 51 and the filter block 25 are connected by the driving shaft 52, so that the filter block 25 can be rotated. When the filter block 25 is removed, the driving shaft 52 can be pushed out of the rotating groove 252. The operation is simple and convenient.

[0042] To facilitate the disassembly of the zeolite, refer to Figure 1 and Figure 4The side walls on both sides of the machine body 1 are provided with auxiliary grooves 16 that communicate with the processing groove 11. A third sliding block 62 fixedly connected to the second sliding block 61 is slidably provided in the auxiliary groove 16. The side wall of the machine body 1 is provided with a pushing groove 15 that communicates with the auxiliary groove 16. A pushing block 7 that can resist the third sliding block 62 is slidably provided in the pushing groove 15. A pushing spring 71 is provided on the inner wall of the pushing groove 15 and communicates with the side wall of the pushing block 7 away from the third sliding block 62. The machine body 1 is provided with a first locking groove 17 that communicates vertically with the pushing groove 15. A first locking block 8 is slidably provided in the first locking groove 17. The pushing block 7 is provided with a first locking slot 72 for the first locking block 8 to fit through. The inner wall of the first locking groove 17 is provided with an auxiliary spring 81 that abuts and connects with the end of the first locking block 8 away from the pushing block 7. The inner wall of the closure groove 14 is provided with a second locking groove 18, into which a second locking block 82 is slidably mounted. A second locking slot 631 for inserting the second locking block 82 is provided on the side wall of the closure block 63. The housing 1 is provided with a transmission assembly 9 that connects the first locking block 8 and the second locking block 82. To remove the zeolite, the first locking block 8 is pushed out of the first locking slot 72. Simultaneously, the transmission assembly 9 drives the second locking block 82 out of the second locking slot 631, causing the push spring 71 to return to its original position. The push block 7 then pushes the third sliding block 62, thereby sliding the second sliding block 61, causing the drive shaft 52 and the closure block 63 to slide. This makes operation simple, convenient, and easy to use.

[0043] To improve the convenience of use, refer to Figure 4 The transmission assembly 9 includes a first transmission rack 93, a second transmission rack 94, a first transmission gear 91, and a second transmission gear 92. The body 1 is provided with a transmission cavity 19 that is in communication with the first locking groove 17 and the second locking groove 18. The first transmission gear 91 and the second transmission gear 92 are both rotatably arranged in the transmission cavity 19 and mesh with each other. The first transmission rack 93 is fixedly arranged on the bottom wall of the first locking block 8 and inserted into the transmission cavity 19 to mesh with the first transmission gear 91. The second transmission rack 94 is fixedly arranged on the bottom wall of the second locking block 82 and inserted into the transmission cavity 19 to mesh with the second transmission gear 92. When the first locking block 8 is pushed to move, the first transmission gear 91 is driven to rotate by the first transmission rack 93, and the second locking block 82 is driven to move by the transmission of the second transmission gear 92 and the second transmission rack 94, thereby simplifying the operation and improving the convenience of use.

[0044] The implementation principle of a lithium battery production waste gas treatment and recovery device in an embodiment of the present application is as follows: when the zeolite adsorption layer 251 needs to be replaced, the first locking block 8 is pushed out of the first locking slot 72. During this process, the transmission assembly 9 drives the second locking block 82 to exit the second locking slot 631. At this time, the pushing spring 71 is restored and the third sliding block 62 is pushed to slide through the pushing block 7, thereby driving the transmission shaft and the closing block 63 to slide through the second sliding block 61 and the first sliding block 6. The transmission shaft exits the rotating slot 252, and the closing block 63 moves to expose the replacement slot 13. The filter block 25 can be taken out through the replacement slot 13 to complete the replacement of the zeolite adsorption layer 251. There is no need to dismantle the entire body 1 for replacement, thereby improving the convenience of zeolite replacement.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A lithium battery production waste gas treatment and recovery device, characterized by: The invention comprises a machine body (1) and an air collecting pipe (3), wherein the machine body (1) is provided with a treatment tank (11), the air collecting pipe (3) is arranged on the machine body (1) and inserted into the treatment tank (11), the inner wall of the treatment tank (11) is provided with a treatment block (2), the treatment block (2) is provided with a mounting groove (21), a filter block (25) is inserted into the mounting groove (21), the filter block (25) is provided with a zeolite adsorption layer (251), the air collecting pipe (3) is connected to the treatment block (2) and communicates with the mounting groove (21), the machine body (1) is provided with a replacement groove (13) communicated with the mounting groove (21), and the air collecting pipe (3) is connected to the treatment block (2) and communicates with the mounting groove (21). The filter block (25) and the zeolite adsorption layer (251) can pass through the replacement groove (13), the body (1) is provided with a sealing member, the sealing member is used to seal the replacement groove (13), the body (1) is provided with a driving assembly (5) for driving the zeolite adsorption layer (251) to rotate in the installation groove (21), the driving assembly (5) includes a driving motor (51) and a square driving shaft (52), the driving motor (51) is arranged in the treatment groove (11), the driving motor (51) is provided with a square moving groove (511), the driving shaft (52) is slidably arranged in the moving groove (511) and The processing block (2) is provided with a driving groove (24) communicating with the mounting groove (21), the driving shaft (52) is slidably inserted into the driving groove (24) and can rotate in the driving groove (24), the filtering block (25) is provided with a square rotating groove (252), the driving shaft (52) is slidably inserted into the rotating groove (252) and is connected to the filtering block (25) by snapping, the machine body (1) is provided with a sliding groove (12) communicating with the processing groove (11), a first sliding block (6) is slidably arranged in the sliding groove (12), and a first sliding block (6) is slidably arranged in the processing groove (11). A second sliding block (61) is provided which is connected to the first sliding block (6); the driving shaft (52) passes through the second sliding block (61); an abutting block (521) is provided on the driving shaft (52); the second sliding block (61) can abut against the abutting block (521); the machine body (1) is provided with a closing groove (14) which is in communication with both the sliding groove (12) and the replacement groove (13); the closing member is a closing block (63); the closing block (63) is slidably provided in the closing groove (14); the closing block (63) is connected to the first sliding block (6); and the closing block (63) abuts against the filter block (25).

2. The lithium battery production waste gas treatment and recovery device according to claim 1, characterized in that: The machine body (1) is provided with a recovery pipe (32), the recovery pipe (32) is inserted into the processing tank (11), connected to the processing block (2), and communicated with the installation tank (21), the machine body (1) is provided with a gas supply component (4), the gas supply component (4) is used to supply gas into the installation tank (21), the machine body (1) is provided with a liquefier (321) connected to the recovery pipe (32), the liquefier (321) is used to liquefy the gas discharged from the recovery pipe (32).

3. The lithium battery production waste gas treatment and recovery device according to claim 2, characterized in that: The air supply assembly (4) comprises an air supply pipe (41), an air collection pipe (42) and a heater (43). The air supply pipe (41) and the air collection pipe (42) are both arranged in the processing tank (11). The heater (43) is arranged in the processing tank (11) and is connected to the air supply pipe (41) and the air collection pipe (42). The heater (43) is used to absorb the gas in the air collection pipe (42) and discharge it into the air supply pipe (41) after heating. The processing block (2) is provided with a first working chamber (22) and a second working chamber (23) which are in communication with the mounting groove (21). The first working chamber (22) is connected to the air collecting pipe (3) and the air collection pipe (42), and the second working chamber (23) is connected to the air supply pipe (41) and the recovery pipe (32).

4. The lithium battery production waste gas treatment and recovery device according to claim 1, characterized in that: The gas collecting pipe (3) and the recovery pipe (32) both pass through the second sliding block (61).

5. The lithium battery production waste gas treatment and recovery device according to claim 1, characterized in that: The machine body (1) is provided with an auxiliary groove (16) communicating with the processing groove (11), a third sliding block (62) connected to the second sliding block (61) is slidably provided in the auxiliary groove (16), the machine body (1) is provided with a pushing groove (15) communicating with the auxiliary groove (16), a pushing block (7) that can abut against the third sliding block (62) is slidably provided in the pushing groove (15), a pushing spring (71) abutting against the pushing block (7) is provided in the pushing groove (15), the machine body (1) is provided with a first locking groove (17) communicating with the pushing groove (15), and a first locking groove (17) is provided in the first locking groove (17). A first locking block (8) is slidably provided, the pushing block (7) is provided with a first locking slot (72) for inserting the first locking block (8), the body (1) is provided with a second locking slot (18) communicating with the closing slot (14), a second locking block (82) is slidably provided in the second locking slot (18), the closing block (63) is provided with a second locking slot (631) for inserting the second locking block (82), a transmission assembly (9) is provided between the first locking block (8) and the second locking block (82), and the transmission assembly (9) is used for transmission connection between the first locking block (8) and the second locking block (82).

6. The lithium battery production waste gas treatment and recovery device according to claim 5, characterized in that: The transmission assembly (9) includes a first transmission rack (93), a second transmission rack (94), a first transmission gear (91) and a second transmission gear (92); the body (1) is provided with a transmission cavity (19) which is in communication with the first locking groove (17) and the second locking groove (18); the first transmission gear (91) and the second transmission gear (92) are both rotatably arranged in the transmission cavity (19) and meshed with each other; the first transmission rack (93) is connected to the first locking block (8) and inserted into the transmission cavity (19) to mesh with the first transmission gear (91); the second transmission rack (94) is connected to the second locking block (82) and inserted into the transmission cavity (19) to mesh with the second transmission gear (92).

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