Lithium battery processing device

Abstract

The invention provides a lithium battery treatment device, relates to the field of waste battery recovery, and aims to solve the problem that the pyrolysis efficiency is influenced by the increase of attachments on a pyrolysis container due to uneven heating during pyrolysis recovery of lithium batteries at present, an electromagnetic heating coil is adopted to heat a pyrolysis barrel, so that the uniformity of temperature distribution in a pyrolysis cavity can be improved, and the pyrolysis efficiency is improved. The waste lithium batteries in the pyrolysis cavity are disturbed through the shoveling plate assembly in the pyrolysis cavity, it is guaranteed that the waste lithium batteries are evenly heated, the blade part of the shoveling plate is matched with the inner wall of the pyrolysis cavity, attachments can be shoveled away in the process of rotating relative to the inner wall of the pyrolysis cavity, and therefore the influence of the attachments on heat transfer is reduced, and the pyrolysis efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of waste battery recycling, and in particular to a lithium battery processing device. Background Art

[0002] Waste lithium batteries contain a large amount of high-value metals and toxic and hazardous substances. Their resource-based and harmless disposal is of great significance. The separation and recovery of high-value components in waste lithium batteries is a key link in realizing the resource recycling of waste lithium batteries. At present, there are hydrometallurgical and pyrometallurgical methods for separating lithium batteries, but they all have problems such as high energy consumption, large amount of waste gas, and high equipment maintenance costs to varying degrees.

[0003] A Chinese patent (publication number CN112128767A) discloses a waste lithium battery pyrolysis furnace, in which a pyrolysis furnace is installed on the top of the frame, and the raw materials are stored inside the buffer silo. Natural gas is burned inside the pyrolysis furnace, and high-temperature flue gas is generated to radiate and indirectly heat the outer side of the rotating cylinder inside the pyrolysis furnace. The heat is transferred to the raw materials on the inner wall of the rotating cylinder through the outer wall of the rotating cylinder, and the raw materials are heated and heated. The flue gas from the pyrolysis furnace enters the inside of the heat exchanger through the waste heat recovery pipe. However, the pyrolysis furnace uses a burner to output natural gas combustion, and the coverage uniformity of the rotating cylinder is insufficient, resulting in a small pyrolysis area of ​​the material, low pyrolysis efficiency, and a large amount of carbon deposits during the pyrolysis process. The carbon deposits attached to the inner wall of the rotating cylinder are inconvenient to be effectively cleaned, which affects the heat transfer efficiency of the rotating cylinder, resulting in poor pyrolysis effect of the internal waste lithium batteries. When pyrolysis and recycling of different types of waste lithium batteries, the optimal pyrolysis time and pyrolysis temperature range are not the same. It is difficult to achieve accurate control of traditional pyrolysis furnaces, resulting in low pyrolysis efficiency and high energy consumption. Summary of the invention

[0004] The purpose of the present invention is to provide a lithium battery processing device in view of the defects of the prior art. The device adopts an electromagnetic heating coil to heat the pyrolysis cylinder, which can improve the uniformity of temperature distribution in the pyrolysis chamber, improve the pyrolysis efficiency to reduce carbon deposition, and combine with the shoveling plate assembly inside the pyrolysis chamber to disturb the waste lithium batteries in the pyrolysis chamber to ensure that they are heated evenly. The blade of the shoveling plate is adapted to the inner wall of the pyrolysis chamber, and can remove attachments during the rotation process relative to the inner wall of the pyrolysis chamber, thereby reducing the influence of the attachments on heat transfer and improving the pyrolysis efficiency.

[0005] In order to solve the above problems, the following solutions are adopted:

[0006] A lithium battery processing device, comprising:

[0007] The pyrolysis cylinder has a pyrolysis chamber formed inside and an electromagnetic heating coil arranged outside. The pyrolysis chamber is provided with a feed inlet and a discharge outlet;

[0008] A main shaft tube is coaxially distributed with the pyrolysis cylinder and rotatably connected to the pyrolysis cylinder;

[0009] The copying plate assembly rotates with the spindle tube. The copying plate assembly includes multiple copying plate mechanisms distributed along the spiral line. The spiral line takes the axis of the spindle tube as the center line. The copying plate mechanism includes a support plate connected to the spindle tube and a copying plate swingably connected to the end of the support plate. The blade of the copying plate coincides with the inner wall of the pyrolysis chamber and is used to remove attachments on the inner wall of the pyrolysis chamber.

[0010] Furthermore, in the axial direction of the pyrolysis cylinder, the feed port is opened at one end of the outer circumferential wall of the pyrolysis cylinder, the discharge port is located at the other end of the outer circumferential wall of the pyrolysis cylinder, and a lifting plate mechanism is distributed between the discharge port and the feed port.

[0011] Furthermore, the pyrolysis cylinder is provided with an inspection port, a protective gas inlet and a pyrolysis gas outlet, and the inspection port, the protective gas inlet and the pyrolysis gas outlet are respectively connected to the pyrolysis chamber.

[0012] Furthermore, the copying plate mechanism includes two copying plates symmetrically distributed relative to the axis of the spindle tube, and the copying plates are respectively connected to the spindle tube through support plates.

[0013] Furthermore, in the distribution direction of the spiral line, the central angles formed by adjacent plate copying mechanisms relative to the axis of the spindle tube are equal.

[0014] Furthermore, both ends of the main shaft tube are located outside the pyrolysis chamber, the segment between the two ends of the main shaft tube passes through the pyrolysis chamber, and the two ends of the main shaft tube are rotatably mounted on the bearing brackets respectively, and the bearing brackets are fixed to the pyrolysis cylinder.

[0015] Furthermore, the axial ends of the pyrolysis cylinder are respectively sealed by sealing flanges, the main shaft tube passes through the sealing flange to form a rotating seal, and an axial tube support connected to the pyrolysis cylinder is provided inside the pyrolysis cylinder, and the main shaft tube and the axial tube support form a rotating connection.

[0016] Furthermore, the shaft tube support is located between adjacent plate-lifting mechanisms, and the shaft tube support is fixed to the pyrolysis cylinder through a plurality of support rods.

[0017] Furthermore, the electromagnetic heating coil is wound around the pyrolysis cylinder, and the pyrolysis cylinder is placed on a cylinder bracket.

[0018] Furthermore, a water cooling channel is provided inside the spindle tube, and water cooling pipes are connected to both ends of the water cooling channel.

[0019] Compared with the prior art, the present invention has the following advantages and positive effects:

[0020] (1) In view of the problem that uneven heating during lithium battery pyrolysis recovery leads to an increase in attachments on the pyrolysis container, which affects the pyrolysis efficiency, an electromagnetic heating coil is used to heat the pyrolysis cylinder, which can improve the uniformity of temperature distribution in the pyrolysis chamber, improve the pyrolysis efficiency and reduce carbon deposition. In addition, a shoveling plate assembly inside the pyrolysis chamber is used to disturb the waste lithium batteries in the pyrolysis chamber to ensure uniform heating. The blade of the shoveling plate fits the inner wall of the pyrolysis chamber and can remove attachments during rotation relative to the inner wall of the pyrolysis chamber, thereby reducing the impact of attachments on heat transfer and improving pyrolysis efficiency.

[0021] (2) Multiple lifting plate mechanisms are arranged to be distributed along the spiral line to improve the stirring efficiency of the lifting plate mechanism on the lithium battery material in the pyrolysis chamber. The lifting plate is swingably connected to the support plate so that the lifting plate has a range of motion and can adapt to the changes in the expansion amount of the pyrolysis cylinder at different temperatures, thereby ensuring the scraping effect of the lifting plate.

[0022] (3) The material conveying speed can be adjusted by controlling the rotation speed of the internal lifting plate assembly, and the heating and decomposition time of the material in the pyrolysis chamber can be controlled by combining the electromagnetic heating coil to control the temperature of the pyrolysis cylinder to meet the pyrolysis requirements of different materials and ensure the pyrolysis effect.

[0023] (4) A shaft tube support is provided on the main shaft tube, and the shaft tube support cooperates with the rotation of the main shaft tube. The shaft tube support can effectively suppress the deformation of the pyrolysis cylinder and the main shaft tube, reduce the problem of the copying plate assembly running stuck and the copying plate colliding with the pyrolysis cylinder caused by deformation, and ensure the stable operation of the copying plate assembly.

[0024] (5) A water cooling pipe is installed inside the spindle tube. During operation, the cooling water circulates to continuously cool the spindle tube, which can effectively prevent the shaft body from being deformed due to overheating of the spindle tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0026] Figure 1 It is a structural schematic diagram of the lithium battery processing device of the present invention;

[0027] Figure 2 is a cross-sectional view of a lithium battery processing device of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the bearing support of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the nitrogen input component of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the copy board assembly of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the shaft tube support of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the cylinder bracket of the present invention.

[0033] In the figure, 1: bearing bracket; 2: sealing flange; 3: cylinder bracket; 4: nitrogen input assembly; 5: spindle tube; 6: pyrolysis cylinder; 7: aluminum silicate fiber insulation layer; 8: electromagnetic heating coil; 111: support steel plate flange; 112: T-type support rod; 113: bearing seat; 114: bearing cover; 311: bracket arc plate; 312: bottom plate; 313: vertical plate rib; 314: rib plate; 411: nitrogen chamber; 412 : Nitrogen cover; 413: Nitrogen hole; 501: Water cooling pipe; 511: Shaft tube support; 512: Copying plate assembly; 521: Support rod; 522: Connecting nut; 523: Connecting screw; 531: Copying plate; 532: Bushing; 533: Pin; 534: Limiting plate; 535: Support plate; 611: Feed inlet; 612: Discharge outlet; 613: Inspection port; 614: Sensor installation port; 615: Pyrolysis gas outlet. DETAILED DESCRIPTION

[0034] Example 1

[0035] In a typical embodiment of the present invention, Figure 1-Figure 7 As shown, a lithium battery processing device is provided.

[0036] During the pyrolysis recovery of lithium batteries, if the temperature distribution of the pyrolysis container is uneven, it will cause uneven heating of the internal lithium batteries, resulting in incomplete pyrolysis of the lithium batteries, and carbon deposits attached to the inner wall of the pyrolysis container, affecting the heat transfer effect of the pyrolysis container, aggravating the formation of carbon deposits, resulting in poor pyrolysis effect and efficiency, and affecting the recovery process. Based on this, the present embodiment provides a lithium battery processing device, which is configured from the aspects of temperature control of the pyrolysis cylinder 6, heating of the lithium battery material inside the pyrolysis cylinder 6, and cleaning of carbon deposits. It can not only ensure uniform temperature distribution in the pyrolysis chamber, but also allow the lithium battery material to be fully and evenly heated, and can also clean the generated carbon deposits, and work together to ensure the pyrolysis effect of the lithium battery, so that the lithium battery can be fully pyrolyzed, and at the same time, improve the pyrolysis processing efficiency to meet the recycling needs.

[0037] like Figure 1 and Figure 2As shown, a lithium battery processing device mainly includes a pyrolysis cylinder 6, a spindle tube 5 and a copy plate assembly 512. A pyrolysis chamber is formed inside the pyrolysis cylinder 6, and an electromagnetic heating coil 8 is arranged outside. The pyrolysis chamber is provided with a feed port 611 and a discharge port 612; the spindle tube 5 is coaxially distributed with the pyrolysis cylinder 6 and is rotatably connected to the pyrolysis cylinder 6. After the pyrolysis cylinder 6 is fixed, the spindle tube 5 can rotate relative to the pyrolysis cylinder 6.

[0038] The copying plate assembly 512 rotates with the spindle tube 5. The copying plate assembly 512 includes a plurality of copying plate 531 mechanisms distributed along a spiral line. The spiral line takes the axis of the spindle tube 5 as the center line. The copying plate 531 mechanism includes a support plate 535 connected to the spindle tube 5 and a copying plate 531 swingably connected to the end of the support plate 535. The blade of the copying plate 531 coincides with the inner wall of the pyrolysis chamber. When the copying plate 531 rotates with the spindle tube 5, the blade of the copying plate 531 can move relative to the inner wall of the pyrolysis chamber, so as to remove the attachments on the inner wall of the pyrolysis chamber.

[0039] In this embodiment, the internal space of the pyrolysis cylinder 6 is the pyrolysis chamber, which is the main place for the pyrolysis reaction of the waste lithium battery. The pyrolysis chamber needs to have good sealing and high temperature resistance to ensure the smooth and safe pyrolysis process.

[0040] An electromagnetic heating coil 8 is arranged on the outside of the pyrolysis cylinder 6, which generates heat through electromagnetic induction and uniformly heats the pyrolysis cylinder 6. The electromagnetic heating method has the advantages of fast heating speed, precise temperature control, and high thermal efficiency, which helps to improve the pyrolysis efficiency and product quality. The pyrolysis chamber is provided with a feed port 611 and a discharge port 612, which are used to put in waste lithium batteries and discharge pyrolysis products, respectively. The feed port 611 is usually designed as a structure that is convenient for material input and can control the feeding speed; the discharge port 612 may need to be combined with an appropriate discharge mechanism, such as a screw conveyor, to achieve continuous discharge of pyrolysis products.

[0041] The main shaft tube 5 is coaxially distributed with the pyrolysis cylinder 6, and the center line of the main shaft tube 5 coincides with the center line of the pyrolysis cylinder 6, ensuring that the rotation of the lifting plate assembly 512 in the pyrolysis chamber is smooth and uniform. The main shaft tube 5 is connected to the pyrolysis cylinder 6 through a bearing or other rotating connection, so that the main shaft tube 5 can rotate around its axis under the drive of the motor, and has good wear resistance, sealing and load-bearing capacity to cope with high temperature and high load working environment.

[0042] The lifting plate assembly 512 is composed of a plurality of lifting plates 531 distributed along a spiral line, and the spiral line takes the axis of the main shaft tube 5 as the center line, so that the lifting plate assembly 512 can cover a larger area in the pyrolysis chamber during the rotation process, promoting uniform heating and mixing of the materials. Each lifting plate 531 mechanism includes a support plate 535 connected to the main shaft tube 5 and a lifting plate 531 swingingly connected to the end of the support plate 535. The support plate 535 plays the role of fixing and transmitting power, while the lifting plate 531 disturbs and mixes the materials through swinging motion. The blade of the lifting plate 531 is consistent with the inner wall of the pyrolysis chamber to ensure that the carbon deposits or other attachments attached to the inner wall can be effectively removed during the rotation process.

[0043] The lifting plate assembly 512 disturbs and mixes the waste lithium batteries in the pyrolysis chamber through rotation and swinging motion, promoting uniform heating and reaction of the materials. At the same time, the blade of the lifting plate 531 can also remove carbon deposits and other attachments attached to the inner wall, reducing heat transfer resistance and improving pyrolysis efficiency.

[0044] By using the electromagnetic heating coil 8, the uniformity of the temperature distribution in the pyrolysis chamber is improved, and the low pyrolysis efficiency and carbon deposition problems caused by uneven temperature are reduced. The attachments on the inner wall of the pyrolysis chamber are effectively removed by the copying plate assembly 512, which reduces the influence of the attachments on heat transfer and improves the pyrolysis efficiency. By improving the pyrolysis efficiency and uniformity, a basis is provided for more accurate pyrolysis time and temperature control. Due to the uniformity of electromagnetic heating and the disturbance effect of the copying plate assembly 512, the waste lithium battery can be heated more fully during the pyrolysis process, thereby improving the pyrolysis efficiency.

[0045] In addition, the adaptability and flexibility of the equipment are improved. By controlling the rotation speed of the internal lifting plate assembly 512 to adjust the material conveying speed, the heating and decomposition time of the material in the pyrolysis chamber can be controlled by combining the temperature control of the pyrolysis cylinder 6 by the electromagnetic heating coil 8 to meet the pyrolysis requirements of different materials and ensure the pyrolysis effect; it can better meet the pyrolysis requirements of different types of waste lithium batteries and provide a more efficient and reliable solution for the recycling and treatment of waste lithium batteries. By improving the pyrolysis efficiency and reducing the amount of carbon deposits, the energy consumption of the entire pyrolysis process is indirectly reduced, which is conducive to energy conservation, emission reduction and sustainable development.

[0046] like Figure 2 As shown, the feed port 611 is provided at one end of the outer circumferential wall of the pyrolysis cylinder 6, and is used to feed the waste lithium battery into the pyrolysis chamber. The feed port 611 needs to consider the convenience and sealing of feeding to prevent gas leakage during the pyrolysis process. A corresponding sealing cover, a blocking cover, etc. can be provided for the feed port 611, and the feed port 611 adopts a shape that is adapted to the shape of the waste lithium battery, such as a square port, etc.

[0047] The discharge port 612 is located at the other end of the outer circumferential wall of the pyrolysis cylinder 6, opposite to the feed port 611, and is used to discharge the pyrolysis product. The discharge port 612 can also cooperate with a discharge mechanism (such as a screw conveyor) to achieve continuous and stable discharge. In order to control the temperature and pressure in the pyrolysis chamber, a temperature sensor and a pressure sensor can also be installed on the pyrolysis cylinder 6, and a sensor installation port is provided on the pyrolysis cylinder 6.

[0048] A lifting plate 531 mechanism is arranged between the discharge port 612 and the feed port 611. The lifting plate 531 mechanism rotates under the drive of the main shaft tube 5 to disturb and mix the materials in the pyrolysis chamber, ensuring that the materials can smoothly enter the pyrolysis chamber and be evenly heated, and facilitating the discharge of pyrolysis products. The continuity and stability of the pyrolysis process are improved, the retention time of the materials in the pyrolysis chamber is reduced, and the problem of uneven pyrolysis caused by material accumulation is avoided. The pyrolysis efficiency is improved and the quality of the pyrolysis products is guaranteed.

[0049] The inspection port 613 is used for inspection and maintenance of the interior of the pyrolysis cylinder 6, such as cleaning carbon deposits, replacing damaged parts, etc. The protective gas inlet is used to introduce protective gas (such as nitrogen) into the pyrolysis chamber to prevent oxygen from entering during the pyrolysis process and causing combustion or explosion. The pyrolysis gas outlet 615 is used to discharge the gas generated during the pyrolysis process, which is convenient for processing the valuable components contained in the pyrolysis exhaust gas and also for processing pollutants. By adding the inspection port 613, the protective gas inlet and the pyrolysis gas outlet 615, the safety and operability of the pyrolysis device are improved.

[0050] In this embodiment, a nitrogen input assembly 4 is configured for the input of the protective gas, and nitrogen is used as the protective gas to ensure that the pyrolysis process is carried out in an oxygen-free environment. The nitrogen input assembly 4 includes a nitrogen hole 413, wherein the pyrolysis chamber serves as a nitrogen cavity 411, and the nitrogen hole 413 serves as an inlet of the nitrogen cavity 411, and the nitrogen hole 413 is connected to a nitrogen source through a pipeline. Figure 4 As shown, in order to improve the sealing performance of the pyrolysis chamber, the axial ends of the pyrolysis cylinder 6 are respectively sealed by sealing flanges 2, and a nitrogen cover 412 is also provided between the sealing flange 2 of the pyrolysis cylinder 6 and the main body of the pyrolysis cylinder 6. The nitrogen cover 412 can adopt a gasket structure to improve the sealing performance. The main body of the sealing flange 2 is a supporting steel plate flange 111, which is used to connect the bearing bracket 1. During the lithium battery processing process, the nitrogen input component 4 can blow nitrogen into the pyrolysis chamber to effectively replace the oxygen in the pyrolysis cylinder 6. Preventing lithium batteries from causing dangerous situations such as combustion or explosion due to contact with oxygen provides safety protection for the pyrolysis process.

[0051] like Figure 5As shown, the lifting plate 531 mechanism includes two lifting plates 531 symmetrically distributed relative to the axis of the main shaft tube 5, which helps to achieve uniform disturbance and mixing of the material. The central angles formed by adjacent lifting plates 531 mechanisms in the spiral distribution direction relative to the axis of the main shaft tube 5 are equal, ensuring that the lifting plates 531 can cover various areas in the pyrolysis chamber during rotation. In this embodiment, the central angle formed by adjacent lifting plates 531 mechanisms is 30°. In other optional embodiments, the central angle can also be 45°, 60°, etc.

[0052] In addition, if Figure 2 As shown, the scraping effect of the blade of the shoveling plate 531 on the inner wall of the pyrolysis chamber can cover the inner wall of the pyrolysis chamber. The scraping area formed by each shoveling plate 531 under the rotation of the spindle tube 5 is annular, and the scraping area edges of adjacent shoveling plates 531 overlap, thereby covering the inner wall of the pyrolysis chamber. By optimizing the design of the shoveling plate 531 mechanism, the mixing effect and heating uniformity of the materials in the pyrolysis chamber are improved, and the low pyrolysis efficiency and carbon deposition problems caused by material accumulation and uneven heating are reduced.

[0053] like Figure 5 As shown, the copying plate 531 is swingably connected to the support plate 535 through the pin 533, and the support plate 535 is also connected to a limit plate 534 to restrict the swing range of the support plate 535. The two support plates 535 of the same copying plate 531 mechanism are connected to the shaft sleeve 532, and the shaft sleeve 532 is connected to the main shaft tube 5 and rotates with the main shaft tube 5.

[0054] like Figure 3 and Figure 2 As shown, both ends of the main shaft tube 5 are located outside the pyrolysis chamber and are rotatably mounted on the pyrolysis cylinder 6 through the bearing bracket 1. The design of the bearing bracket 1 needs to consider the load-bearing capacity and sealing performance. The axial ends of the pyrolysis cylinder 6 are respectively sealed by the sealing flange 2, and the main shaft tube 5 passes through the sealing flange 2 to form a rotating seal to prevent the pyrolysis gas from leaking.

[0055] In this embodiment, the bearing bracket 1 includes a bearing seat 113, a bearing cover 114 and a T-shaped support rod 112. The bearing seat 113 is coaxially distributed with the main shaft tube 5 and is spaced apart from one end of the pyrolysis cylinder 6. The bearing seat 113 is fixed to the pyrolysis cylinder 6 in an annular direction through a plurality of inclined T-shaped support rods 112. The bearing seat 113 is rotatably connected to the main shaft seat through an internal bearing, and the position of the bearing inside the bearing seat 113 is constrained by cooperating with the bearing cover 114.

[0056] The shaft tube support 511 is located between adjacent copying plates 531 and is fixed to the pyrolysis cylinder 6 through a plurality of support rods 521 to provide additional support for the main shaft tube 5. Figure 6As shown, the shaft tube support 511 is rotatably matched with the main shaft tube 5. The shaft tube support 511 can effectively suppress the deformation of the pyrolysis cylinder 6 and the main shaft tube 5, reduce the problems of the copying plate assembly 512 being stuck in operation and the copying plate 531 colliding with the pyrolysis cylinder 6 caused by deformation, ensure the stable operation of the copying plate assembly 512, and avoid equipment failure and safety hazards caused by shaking or leakage of the main shaft tube 5.

[0057] Among them, the shaft tube support 511 includes a shaft sleeve 532 and a support rod 521. The shaft sleeve 532 is connected to multiple support rods 521 in an upward direction. The support rods 521 are arranged radially along the shaft sleeve 532. The shaft sleeve 532 is sleeved on the outside of the main shaft tube 5 to support the main shaft tube 5. A connecting nut 522 is installed at one end of the support rod 521 away from the shaft sleeve 532. The connecting nut 522 cooperates with the connecting screw 523 to be connected to the pyrolysis cylinder 6, thereby establishing mutual support between the main shaft tube 5 and the pyrolysis cylinder 6.

[0058] The electromagnetic heating coil 8 is wound around the pyrolysis cylinder 6 to heat the pyrolysis cylinder 6 by the electromagnetic induction principle. Figure 1 and Figure 2 As shown, the electromagnetic heating coil 8 is evenly wound on the outer wall of the cylinder. At the same time, a thermal insulation layer can also be wrapped around the electromagnetic heating coil 8. In this embodiment, the thermal insulation layer is an aluminum silicate fiber thermal insulation layer 7. The aluminum silicate fiber thermal insulation layer 7 consists of 3 layers. The first layer is 2 cm thick ceramic fiber, the second layer is 2 cm thick ceramic fiber, and the third layer is 1 cm thick aerogel felt. The steps for winding the electromagnetic heating coil 8 are as follows: 2 high-temperature wires are fixed with adhesive tape (the 2 wires are parallel), and then wound on the pyrolysis cylinder 6 like a spring.

[0059] like Figure 2 As shown, a water cooling channel is provided inside the spindle tube 5, and water cooling pipes 501 are connected at both ends to cool the spindle tube 5 to prevent it from being deformed or damaged due to high temperature; a combination of electromagnetic heating and water cooling system is adopted to achieve uniform heating of the pyrolysis cylinder 6 and effective cooling of the spindle tube 5. The heating efficiency and pyrolysis effect are improved, while ensuring the stability and service life of the spindle tube 5 in a high temperature environment.

[0060] like Figure 7 As shown, the cylinder bracket 3 includes a bracket arc plate 311, a bottom plate 312, a vertical plate rib 313 and a rib plate 314. The bracket arc plate 311 fits tightly against the outer wall of the pyrolysis cylinder 6, and its arc design effectively disperses the weight of the cylinder, providing the necessary support force. The bottom plate 312 is in direct contact with the ground, and its large contact area and stable support structure ensure the stability of the entire device during operation. The vertical plate ribs 313 and the rib plate 314 serve as reinforcement structures to enhance the rigidity and load-bearing capacity of the cylinder bracket 3, and prevent it from being deformed or damaged when carrying heavy objects for a long time or being vibrated.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lithium battery processing device, characterized in that: include: The pyrolysis cylinder has a pyrolysis chamber formed inside and an electromagnetic heating coil arranged outside. The pyrolysis chamber is provided with a feed inlet and a discharge outlet; A main shaft tube is coaxially distributed with the pyrolysis cylinder and rotatably connected to the pyrolysis cylinder; The copying plate assembly rotates with the spindle tube. The copying plate assembly includes multiple copying plate mechanisms distributed along the spiral line. The spiral line takes the axis of the spindle tube as the center line. The copying plate mechanism includes a support plate connected to the spindle tube and a copying plate swingably connected to the end of the support plate. The blade of the copying plate coincides with the inner wall of the pyrolysis chamber and is used to remove attachments on the inner wall of the pyrolysis chamber.

2. The lithium battery processing device according to claim 1, characterized in that: In the axial direction of the pyrolysis cylinder, the feed port is opened at one end of the outer circumferential wall of the pyrolysis cylinder, the discharge port is located at the other end of the outer circumferential wall of the pyrolysis cylinder, and a copying plate mechanism is distributed between the discharge port and the feed port.

3. The lithium battery processing device according to claim 2, characterized in that: The pyrolysis cylinder is provided with an inspection port, a protective gas inlet and a pyrolysis gas outlet, and the inspection port, the protective gas inlet and the pyrolysis gas outlet are respectively connected to the pyrolysis chamber.

4. The lithium battery processing device according to claim 1, characterized in that: The copying plate mechanism comprises two copying plates which are symmetrically distributed relative to the axis of the main shaft tube, and the copying plates are respectively connected to the main shaft tube through supporting plates.

5. The lithium battery processing device according to claim 1 or 4, characterized in that: In the distribution direction of the spiral line, the central angles formed by adjacent plate copying mechanisms relative to the axis of the main shaft tube are equal.

6. The lithium battery processing device according to claim 1, characterized in that: Both ends of the main shaft tube are located outside the pyrolysis chamber, the segment between the two ends of the main shaft tube runs through the pyrolysis chamber, and the two ends of the main shaft tube are rotatably mounted on the bearing brackets respectively, and the bearing brackets are fixed to the pyrolysis cylinder.

7. The lithium battery processing device according to claim 1 or 6, characterized in that: The axial ends of the pyrolysis cylinder are respectively sealed by sealing flanges, and the main shaft tube passes through the sealing flange to form a rotating seal. An axial tube support connected to the pyrolysis cylinder is provided inside the pyrolysis cylinder, and the main shaft tube and the axial tube support form a rotating connection.

8. The lithium battery processing device according to claim 7, characterized in that: The shaft tube support is located between adjacent copying plate mechanisms, and the shaft tube support is fixed to the pyrolysis cylinder through a plurality of support rods.

9. The lithium battery processing device according to claim 1, characterized in that: The electromagnetic heating coil is wound around the pyrolysis cylinder, and the pyrolysis cylinder is placed on a cylinder bracket.

10. The lithium battery processing device according to claim 1 or 9, characterized in that: A water cooling channel is arranged inside the spindle tube, and water cooling pipes are connected to both ends of the water cooling channel.

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