A waste lithium battery pyrolysis machine

Abstract

This utility model relates to the field of waste lithium battery treatment technology and discloses a waste lithium battery pyrolysis machine, including a base, a waste lithium battery pyrolysis furnace on one side of the top of the base, and a harmful gas combustion component on the top of the waste lithium battery pyrolysis furnace. A suction pump connected to the harmful gas combustion component is located on one side of the waste lithium battery pyrolysis furnace. The output end of the suction pump is connected to a melting chamber via a conduit. An adsorption component is located on the top of the melting chamber, and a melting treatment mechanism is located inside the melting chamber. The melting treatment mechanism includes a perforated partition, a sealing shell fixedly installed on the top of the perforated partition, a motor on one side of the melting chamber, a bevel gear I connected to the motor output end inside the sealing shell, a hollow shaft rotatably installed on the top of the sealing shell, and a bevel gear II meshing with bevel gear I is sleeved on the lower end of the hollow shaft. The melting treatment mechanism achieves rotating water spray to increase gas-liquid contact, with a rotating perforated plate assisting in stirring, and allows for convenient maintenance of the adsorption component, efficiently treating waste gas.

Description

Technical Field

[0001] This utility model relates to the field of waste lithium battery processing technology, and in particular to a waste lithium battery pyrolysis machine. Background Technology

[0002] Thermal desorption technology uses heat exchange to volatilize and separate organic pollutants from a medium, making it an important pollution treatment method. Currently, the hazards of spent lithium batteries are prominent; their heavy metals can pollute water and soil and harm health through leachate. The industry mainly uses crushing and recycling processes to extract metals and alloys such as zinc, manganese, and iron, achieving resource recycling.

[0003] Patent CN222688192U discloses a waste lithium battery pyrolysis machine. Based on a supporting base plate, it is equipped with a pyrolysis furnace, a harmful gas combustion component, a vacuum pump, a particle melting chamber (with a stirring component, a partition, and a gas outlet) and a gas adsorption component. It can improve particle melting efficiency and reduce pollution, and has application potential.

[0004] However, in actual use, the equipment has shortcomings: although there is a stirring component to assist gas-liquid contact, the exhaust gas floats out quickly after being introduced into the solution due to buoyancy. The gas-liquid contact time is short and the mixing is insufficient, resulting in a low particle dissolution and removal rate. It also increases the load on the adsorption component, affects the exhaust gas treatment effect, and is inconvenient to use. Utility Model Content

[0005] In view of the existing waste lithium battery pyrolysis machines, although they can improve particle melting efficiency and reduce pollution through related components, in actual use, the waste gas is quickly floated out due to buoyancy after entering the solution, the gas-liquid contact time is short and the mixing is insufficient, resulting in low particle melting and removal rate and increased load on the adsorption components, which affects the waste gas treatment effect. Therefore, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a waste lithium battery pyrolysis machine, including a base, a waste lithium battery pyrolysis furnace is provided on one side of the top of the base, and a harmful gas combustion component is provided on the top of the waste lithium battery pyrolysis furnace. A vacuum pump connected to the harmful gas combustion component is provided on one side of the waste lithium battery pyrolysis furnace. The output end of the vacuum pump is connected to a melting chamber through a conduit. The melting chamber is located on one side of the top of the base. An adsorption component is provided on the top of the melting chamber. A melting treatment mechanism is provided inside the melting chamber. The melting treatment mechanism includes a mesh partition, which is located in the lower part of the melting chamber. A sealing shell is fixedly installed on the top of the mesh partition. A motor is provided on one side of the melting chamber. A bevel gear is connected to the output end of the motor inside the sealing shell. A hollow shaft is rotatably installed on the top of the sealing shell, and a bevel gear two that meshes with the bevel gear one is sleeved on the lower end of the hollow shaft.

[0007] As a preferred embodiment, the melting treatment mechanism further includes a water spray pipe symmetrically arranged on the upper outer wall of the hollow shaft, with several nozzles at the bottom. A pump cylinder is located on one side of the sealing shell at the top of the mesh partition. A push rod is located on one side of the pump cylinder, with one end of the push rod connected to a piston inside the pump cylinder. A water inlet is located on one side of the pump cylinder, with a one-way valve inside. A connecting pipe with a one-way valve is connected to one end of the pump cylinder, extending into the sealing shell. One end of the connecting pipe is connected to the lower end of the hollow shaft via a rotating connector. A drive column is connected to the top of the push rod near the hollow shaft. A drive wheel is fitted on the outer wall of the hollow shaft above the drive column, with a drive groove adapted to the drive column at the bottom of the drive wheel. Several rotating shafts are symmetrically arranged on the outer wall of the hollow shaft between the water spray pipe and the drive wheel, and several stirring rods are symmetrically arranged on the outer wall of the rotating shafts.

[0008] As a preferred embodiment, the rotating shaft is rotatably connected to the hollow shaft, and a rotating wheel is fixedly connected to the end of the rotating shaft away from the hollow shaft. A perforated plate is sleeved on the outer side of the hollow shaft, and the perforated plate is fixedly connected to the inner wall of the melting chamber. The bottom of the perforated plate is in contact with the rotating wheel.

[0009] As a preferred embodiment, the drive wheel has an elliptical structure, the push rod has a hook-shaped structure, the piston outer wall is fitted with a sealing ring, and the hollow shaft is connected to the sealing shell and the rotating shaft respectively through bearings.

[0010] As a preferred embodiment, the adsorption assembly includes an adsorption frame, which is disposed on the top of the melting chamber. An exhaust port is provided on the top of the melting chamber corresponding to the adsorption frame. An installation groove is provided on one side of the adsorption frame. A filter screen, an activated carbon filter plate, and a filter mesh are arranged sequentially in the installation groove. A sealing plate is connected to one end of the filter screen, the activated carbon filter plate, and the filter mesh, and the sealing plate is detachably connected to the adsorption frame.

[0011] As a preferred embodiment, the sealing plate has symmetrically formed cavities inside, each cavity containing a rod. A spring and a stop block are fitted around the outside of each rod, with the spring positioned opposite the two stops. Both ends of the spring are fixedly connected to the stops and the inner wall of the cavity, respectively. One oppositely outer end of the rod extends into a symmetrically formed insertion hole on the inner wall of the mounting groove. The sealing plate has a rail groove communicating with the two cavities, and pull ropes are symmetrically arranged within the rail groove. One end of each pull rope is fixedly connected to one end of a rod on one side, and the other ends of the pull ropes are connected to a handle outside the sealing plate.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model, through a melting treatment mechanism, uses a motor in conjunction with bevel gear one and bevel gear two to drive the hollow shaft to rotate, which in turn drives the drive wheel. In conjunction with the drive column and drive groove, the push rod drives the piston to reciprocate within the pump cylinder, thereby continuously pushing the water entering the pump cylinder to the hollow shaft and then spraying it out through the nozzle on the spray pipe. This increases the contact area with the exhaust gas, allowing for more thorough contact. At the same time, it disrupts the gas's upward path, making the gas's movement trajectory in the water more complex, extending the gas's residence time in the water, and improving the treatment effect.

[0013] 2. This utility model, in conjunction with the rotating wheel and the perforated plate, allows the rotating shaft to revolve around the hollow shaft while simultaneously driving the rotating wheel to roll on the perforated plate. This, in turn, causes the rotating shaft to rotate and the stirring rod to stir the water in the melting chamber, further ensuring more thorough contact between the waste gas and water and accelerating the melting speed of solid particles.

[0014] 3. This utility model uses an adsorption component to adsorb and filter waste gas, removing odors. By pulling the handle, two ropes are pulled, which in turn pulls the insertion rod and causes the stop block to stretch the spring, so that one end of the insertion rod moves out of the insertion hole, allowing the sealing plate to be removed for cleaning or replacement of the filter screen, activated carbon filter plate and filter mesh. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional structural diagram of the melting chamber of this utility model; Figure 3 This is a schematic diagram of the structure between the motor, hollow shaft and pump cylinder of this utility model; Figure 4 This is a partial cross-sectional structural diagram of the adsorption frame of this utility model; Figure 5 For the present utility model Figure 4 A magnified structural diagram of point A in the middle.

[0016] Explanation of reference numerals in the attached figures: 1. Base; 2. Waste lithium battery pyrolysis furnace; 3. Hazardous gas combustion assembly; 4. Air pump; 5. Melting chamber; 6. Adsorption frame; 7. Mesh partition; 8. Sealing shell; 9. Motor; 10. Hollow shaft; 11. Bevel gear one; 12. Bevel gear two; 13. Drive wheel; 14. Pump cylinder; 15. Push rod; 16. Piston; 17. Drive column; 18. Connecting pipe; 19. Water spray pipe; 20. Rotating shaft; 21. Rotating wheel; 22. Stirring rod; 23. Perforated plate; 24. Filter screen; 25. Activated carbon filter plate; 26. Filter mesh; 27. Sealing plate; 28. Cavity; 29. ​​Insert rod; 30. Spring; 31. Stop block; 32. Rail groove; 33. Pull rope; 34. Handle. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Reference Figure 1 - Figure 5 As shown, a waste lithium battery pyrolysis machine is provided, including a base 1, a waste lithium battery pyrolysis furnace 2 is provided on one side of the top of the base 1, and a hazardous gas combustion component 3 is provided on the top of the waste lithium battery pyrolysis furnace 2. A vacuum pump 4 connected to the hazardous gas combustion component 3 is provided on one side of the waste lithium battery pyrolysis furnace 2. The output end of the vacuum pump 4 is connected to a melting chamber 5 through a conduit. The melting chamber 5 is located on one side of the top of the base 1, and an adsorption component is provided on the top of the melting chamber 5. A melting treatment mechanism is provided inside the melting chamber 5. This provides a stable equipment framework for waste lithium battery pyrolysis, hazardous gas treatment and subsequent melting adsorption, realizes the orderly integration of various functional units, and lays the structural foundation for an efficient processing flow. The melting and processing mechanism includes a mesh partition 7, which is located in the lower part of the melting chamber 5. A sealing shell 8 is fixedly installed on the top of the mesh partition 7. A motor 9 is provided on one side of the melting chamber 5. In this example, the motor 9 is a servo motor. The output end of the motor 9 is connected to a bevel gear 11 inside the sealing shell 8. A hollow shaft 10 is rotatably installed on the top of the sealing shell 8, and a bevel gear 12 that meshes with the bevel gear 11 is sleeved on the lower end of the hollow shaft 10. The power of the motor 9 is stably transmitted to the hollow shaft 10 through the bevel gear transmission structure, providing a power source for the subsequent water spraying and stirring actions of the melting and processing. At the same time, the sealing shell 8 can protect the transmission components, avoid being affected by the solution, and extend the service life of the equipment.

[0019] In this example, the melting and processing mechanism also includes a water spray pipe 19, which is symmetrically arranged on the upper outer wall of the hollow shaft 10. Several nozzles are provided at the bottom of the water spray pipe 19. A pump cylinder 14 is located on the top of the mesh partition 7 on one side of the sealing shell 8. A push rod 15 is located on one side of the pump cylinder 14, and a piston 16 is connected to one end of the push rod 15 inside the pump cylinder 14. A water inlet is opened on one side of the pump cylinder 14, and a one-way valve is provided inside the water inlet. A connecting pipe 18 with a one-way valve is connected to one end of the pump cylinder 14, and one end of the connecting pipe 18 extends into the sealing shell 8. One end of the connecting pipe 18 is connected to the lower end of the hollow shaft 10 via a rotating connector. A drive column 17 is connected to the top of the push rod 15 near the hollow shaft 10. A drive wheel 13 is sleeved on the outer wall of the hollow shaft 10 above the drive column 17. A connection point is opened at the bottom of the drive wheel 13 to the drive column 17. The 7-adaptive drive groove has several rotating shafts 20 symmetrically arranged on the outer wall of the hollow shaft 10 between the water spray pipe 19 and the drive wheel 13, and several stirring rods 22 symmetrically arranged on the outer wall of the rotating shaft 20. Through the melting treatment mechanism, the hollow shaft 10 can be driven to rotate by the motor 9 in conjunction with the bevel gear 11 and bevel gear 12, which in turn drives the drive wheel 13. In conjunction with the drive column 17 and the drive groove, the push rod 15 can drive the piston 16 to reciprocate in the pump cylinder 14, thereby continuously pushing the water entering the pump cylinder 14 to be transported to the hollow shaft 10 and then sprayed out through the nozzle on the water spray pipe 19, so as to increase the contact area with the exhaust gas, make more thorough contact with it, and at the same time disrupt the gas rising path, making the gas movement trajectory in the water more complex, prolonging the gas residence time in the water, and improving the treatment effect.

[0020] In this example, the rotating shaft 20 is rotatably connected to the hollow shaft 10. A rotating wheel 21 is fixedly connected to the end of the rotating shaft 20 away from the hollow shaft 10. A perforated plate 23 is sleeved on the outside of the hollow shaft 10, and the perforated plate 23 is fixedly connected to the inner wall of the melting chamber 5. The bottom of the perforated plate 23 is in contact with the rotating wheel 21. By cooperating with the rotating wheel 21 and the perforated plate 23, the rotating shaft 20 can rotate with the hollow shaft 10 while driving the rotating wheel 21 to roll on the perforated plate 23. This causes the rotating shaft 20 to drive the stirring rod 22 to rotate and stir the water in the melting chamber 5, further making the waste gas and water come into more complete contact and accelerating the melting speed of solid particles.

[0021] In this example, the drive wheel 13 has an elliptical structure, the push rod 15 has a hook-shaped structure, the piston 16 has a sealing ring on its outer wall, and the hollow shaft 10 is connected to the sealing shell 8 and the rotating shaft 20 through bearings. The elliptical drive wheel 13 can stably drive the push rod 15 to reciprocate, the hook-shaped push rod 15 is adapted to the spatial layout of the equipment, the piston 16 and the sealing ring ensure the water sealing of the pump, and the bearing connection reduces the rotational friction of the hollow shaft 10, thereby improving the transmission efficiency and the stability of equipment operation.

[0022] In this example, the adsorption assembly includes an adsorption frame 6, which is located on top of the melting chamber 5. An exhaust port is provided on the top of the melting chamber 5 corresponding to the adsorption frame 6. An installation groove is provided on one side of the adsorption frame 6. A filter screen 24, an activated carbon filter plate 25, and a filter mesh 26 are arranged sequentially inside the installation groove. One end of the filter screen 24, activated carbon filter plate 25, and filter mesh 26 is connected to a sealing plate 27, which is detachably connected to the adsorption frame 6. Through the adsorption assembly, waste gas can be adsorbed and filtered to remove odors. The multi-layer filtration structure enhances the adsorption effect, and the detachable design of the sealing plate 27 facilitates subsequent filter media maintenance.

[0023] In this example, the sealing plate 27 has symmetrically symmetrically formed cavities 28, and each cavity 28 contains a rod 29. A spring 30 and a stop block 31 are fitted around the outside of the rod 29, with the spring 30 located on the opposite outer side of the two stops 31. Both ends of the spring 30 are fixedly connected to the stops 31 and the inner wall of the cavity 28, respectively. One opposite outer end of the rod 29 extends into a symmetrically formed insertion hole on the inner wall of the mounting groove. The sealing plate 27 has a rail groove 32 communicating with the two cavities 28, and symmetrically formed pull rods are provided within the rail groove 32. Two ropes 33 are fixedly connected at one end to one end of the insertion rod 29 on one side, and the other end of the two ropes 33 is connected to a handle 34 outside the sealing plate 27. By pulling the handle 34, the two ropes 33 are driven, which in turn pulls the insertion rod 29, drives the stop block 31 to stretch the spring 30, and moves one end of the insertion rod 29 out of the insertion hole. The sealing plate 27 can then be removed to clean or replace the filter screen 24, activated carbon filter plate 25 and filter mesh 26. The operation is convenient and reduces the difficulty and cost of equipment maintenance.

[0024] During use, Pyrolysis pretreatment stage: The waste lithium batteries to be treated are put into the waste lithium battery pyrolysis furnace 2 on the base 1. The waste lithium batteries are heated in the pyrolysis furnace, causing organic pollutants such as adhesives inside the batteries to volatilize under heat. At the same time, the metallic and non-metallic components inside the batteries are initially separated. The harmful gases generated in this process (such as sulfides, nitrogen-containing compounds, etc.) are incinerated by the harmful gas combustion component 3 at the top of the pyrolysis furnace, which initially eliminates some toxic and harmful components, laying the foundation for subsequent exhaust gas purification. Waste gas conveying and melting preparation stage: Start the exhaust pump 4 connected to the harmful gas combustion component 3 on one side of the waste lithium battery pyrolysis furnace 2. The exhaust pump 4 uses negative pressure to convey the waste gas (including incompletely dissolved solid particles and residual harmful gases) after combustion treatment to the melting chamber 5 on the base 1 through the conduit. Water for melting solid particles is pre-injected into the melting chamber 5, and the mesh baffle 7 at the bottom of the melting chamber 5 can play a preliminary role in dispersing the waste gas, avoiding the waste gas from rushing in and causing insufficient local gas-liquid contact.

[0025] The power transmission stage of the melting treatment mechanism: The motor 9 on one side of the melting chamber 5 is started. The output end of the motor 9 drives the bevel gear 11 in the sealed shell 8 to rotate. Because the bevel gear 11 meshes with the bevel gear 12 at the lower end of the hollow shaft 10, the power is transmitted to the hollow shaft 10 through the bevel gear transmission, driving the hollow shaft 10 to rotate on the top of the sealed shell 8.

[0026] During the waste gas spraying and melting stage: When the hollow shaft 10 rotates, the elliptical drive wheel 13 fitted on its outer wall rotates synchronously. The drive groove at the bottom of the drive wheel 13 cooperates with the drive column 17 at the top of the push rod 15, pushing the push rod 15 to drive the piston 16 in the pump cylinder 14 to reciprocate. During the reciprocating motion of the piston 16, the pump cylinder 14 draws water from the melting chamber 5 through the water inlet with a one-way valve, and then delivers the water to the hollow shaft 10 through the connecting pipe 18 with a one-way valve. The water flows along the inner cavity of the hollow shaft 10 to the spray pipe 19 symmetrically arranged at its upper end, and is finally sprayed out through several nozzles at the bottom of the spray pipe 19. The sprayed water comes into full contact with the waste gas delivered to the melting chamber 5 by the air pump 4, disrupting the upward path of the waste gas and prolonging the residence time of the waste gas in the water. At the same time, the solid particles in the waste gas are wrapped by water mist and dissolved in the water.

[0027] Water stirring and enhanced melting stage: When the hollow shaft 10 rotates, several rotating shafts 20 symmetrically arranged on its outer wall revolve synchronously with the hollow shaft 10; because the rotating wheel 21 at the end of the rotating shaft 20 away from the hollow shaft 10 contacts the bottom of the perforated plate 23 fixed on the inner wall of the melting chamber 5, the rotating wheel 21 generates a rotational force when it rolls on the perforated plate 23, which drives the rotating shaft 20 to rotate itself, thereby causing the stirring rod 22 on the outer wall of the rotating shaft 20 to rotate synchronously; the stirring rod 22 stirs the water in the melting chamber 5, forming a local vortex, further breaking the stable state of the waste gas bubbles, promoting uniform gas-liquid mixing, and accelerating the contact and dissolution of solid particles that have not been dissolved by water mist with the water.

[0028] Waste gas adsorption filtration and filter media maintenance stage: The waste gas after melting treatment (mainly containing residual odorous gases and extremely fine unmelted particles) enters the adsorption frame 6 of the adsorption component from the exhaust port at the top of the melting chamber 5. The waste gas passes through the filter screen 26, activated carbon filter plate 25, and filter screen 24 in the installation groove of the adsorption frame 6 in sequence, and finally meets the emission standards. After the filter media has been used for a period of time, pull the handle 34 outside the sealing plate 27. The handle 34 pulls the insertion rod 29 in the cavity 28 through the pull rope 33 in the rail groove 32. The insertion rod 29 drives the stop block 31 to stretch the spring 30, so that one end of the insertion rod 29 moves out of the insertion hole in the inner wall of the installation groove. The sealing plate 27 can then be removed to clean or replace the filter screen 24, activated carbon filter plate 25, and filter screen 26 to ensure that the adsorption component continues to work efficiently.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A waste lithium battery pyrolysis machine, comprising a base (1), characterized in that: The base (1) has a waste lithium battery pyrolysis furnace (2) on one side of its top, and a hazardous gas combustion component (3) is provided on the top of the waste lithium battery pyrolysis furnace (2). A vacuum pump (4) connected to the hazardous gas combustion component (3) is provided on one side of the waste lithium battery pyrolysis furnace (2). The output end of the vacuum pump (4) is connected to a melting chamber (5) through a conduit. The melting chamber (5) is located on one side of the top of the base (1). An adsorption component is provided on the top of the melting chamber (5). A melting treatment mechanism is provided inside the melting chamber (5). The melting treatment mechanism includes a mesh partition (7), and the mesh partition (7) is located in the lower part of the melting chamber (5). A sealing shell (8) is fixedly installed on the top of the mesh partition (7). A motor (9) is provided on one side of the melting chamber (5). A bevel gear (11) is connected to the output end of the motor (9) inside the sealing shell (8). A hollow shaft (10) is rotatably installed on the top of the sealing shell (8), and a bevel gear (12) that meshes with the bevel gear (11) is sleeved on the lower end of the hollow shaft (10).

2. The waste lithium battery pyrolysis machine according to claim 1, characterized in that: The melting treatment mechanism also includes a water spray pipe (19), which is symmetrically arranged on the upper outer wall of the hollow shaft (10), and the bottom of the water spray pipe (19) is provided with several nozzles. The top of the mesh partition (7) is provided with a pump cylinder (14) on one side of the sealing shell (8). A push rod (15) is provided on one side of the pump cylinder (14), and one end of the push rod (15) is connected to a piston (16) inside the pump cylinder (14). A water inlet is opened on one side of the pump cylinder (14), and a one-way valve is provided inside the water inlet. One end of the pump cylinder (14) is connected to a connecting pipe (18) with a one-way valve, and the connecting pipe (18) is connected to a connecting pipe (18) with a one-way valve. The end extends into the sealed shell (8). One end of the connecting pipe (18) is connected to the lower end of the hollow shaft (10) through a rotating connector. The push rod (15) is connected to the top of the end near the hollow shaft (10) with a drive column (17). The outer wall of the hollow shaft (10) is fitted with a drive wheel (13) above the drive column (17). The bottom of the drive wheel (13) is provided with a drive groove that is compatible with the drive column (17). The outer wall of the hollow shaft (10) is symmetrically provided with several rotating shafts (20) between the water spray pipe (19) and the drive wheel (13). The outer wall of the rotating shaft (20) is symmetrically provided with several stirring rods (22).

3. The waste lithium battery pyrolysis machine according to claim 2, characterized in that: The rotating shaft (20) is rotatably connected to the hollow shaft (10). A rotating wheel (21) is fixedly connected to one end of the rotating shaft (20) away from the hollow shaft (10). A perforated plate (23) is sleeved on the outside of the hollow shaft (10), and the perforated plate (23) is fixedly connected to the inner wall of the melting chamber (5). The bottom of the perforated plate (23) is in contact with the rotating wheel (21).

4. The waste lithium battery pyrolysis machine according to claim 3, characterized in that: The drive wheel (13) has an elliptical structure, the push rod (15) has a hook-shaped structure, the piston (16) has a sealing ring on its outer wall, and the hollow shaft (10) is connected to the sealing shell (8) and the rotating shaft (20) through bearings respectively.

5. The waste lithium battery pyrolysis machine according to claim 2, characterized in that: The adsorption assembly includes an adsorption frame (6), which is located on the top of the melting chamber (5). The top of the melting chamber (5) has an exhaust port corresponding to the adsorption frame (6). An installation groove is provided on one side of the adsorption frame (6). A filter screen (24), an activated carbon filter plate (25), and a filter gauze (26) are arranged sequentially in the installation groove. A sealing plate (27) is connected to one end of the filter screen (24), the activated carbon filter plate (25), and the filter gauze (26). The sealing plate (27) is detachably connected to the adsorption frame (6).

6. The waste lithium battery pyrolysis machine according to claim 5, characterized in that: The sealing plate (27) has symmetrically opened cavities (28) inside. The cavity (28) has a rod (29) inside. The rod (29) has a spring (30) and a stop (31) on its outer side. The spring (30) is located on the opposite outer side of the two stops (31). The two ends of the spring (30) are fixedly connected to the stop (31) and the inner wall of the cavity (28) respectively. The opposite outer end of the rod (29) extends into the symmetrically opened insertion hole on the inner wall of the mounting groove. The sealing plate (27) has a rail groove (32) inside that communicates with the two cavities (28). The rail groove (32) has symmetrically opened pull ropes (33). One end of the two pull ropes (33) is fixedly connected to one end of the rod (29) on one side respectively. The other end of the two pull ropes (33) is connected to a handle (34) outside the sealing plate (27).

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