Automatic feeding equipment for lithium batteries

Abstract

The invention provides lithium battery automatic feeding equipment which comprises a supporting seat, a conveying frame is slidably connected to the supporting seat, a compression spring is arranged between the conveying frame and the supporting seat, a first rotating shaft and a second rotating shaft are rotationally connected to the front end and the rear end of the conveying frame correspondingly, a conveying belt is wound between the first rotating shaft and the second rotating shaft, and a first motor is installed at the rear end of the conveying frame; an output shaft of the first motor is in key connection with the second rotating shaft, detachable collecting boxes are symmetrically arranged on the left side and the right side of the conveying frame, in order to improve the removal efficiency of the electrolyte, two sets of symmetrically-distributed vibration assemblies are arranged at the bottom of the conveying frame, and a vibration foundation is provided for the conveying frame and residues borne by the conveying frame through the vibration assemblies; the attachment state of the electrolyte in residue pores is effectively destroyed through the mechanical vibration effect, rapid precipitation of the electrolyte is promoted, the outflow speed of the electrolyte is increased, and the collection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of feeding technology for lithium battery recycling, and specifically to an automatic lithium battery feeding device. Background Technology

[0002] Lithium-ion batteries are rechargeable batteries that primarily rely on the movement of lithium ions between the positive and negative electrodes to store and release electrical energy. They provide efficient and lightweight energy for portable electronic devices, electric vehicles, and renewable energy systems.

[0003] With the rapid development of the new energy industry, lithium batteries are widely used in various fields. However, the disposal of used lithium batteries has become an urgent environmental and resource problem. Lithium batteries contain heavy metals such as cobalt, nickel, and manganese. Improper disposal and indiscriminate dumping can easily cause soil and water pollution and pose safety hazards such as thermal runaway leading to fires or explosions. At the same time, the metals such as cobalt, nickel, and lithium in their cathode materials are scarce strategic resources, with high mining costs, high dependence on foreign sources, and limited global reserves.

[0004] Currently, the main processes for lithium battery recycling include discharging, dismantling, crushing, sorting, leaching, and purification. Since used batteries may retain some charge, the first step in the recycling process is safe discharge to prevent short circuits, fires, and other safety accidents during dismantling. This is typically achieved by immersing the battery in an electrolyte (organic solvent) to ensure complete discharge and safe operation in subsequent processes.

[0005] After discharge, the battery enters the crushing process. A crusher breaks the cells into fragments with a particle size of approximately 1–5 cm to facilitate the subsequent separation and recovery of valuable components. The crushed material is then conveyed to the next processing unit via a feeding device. However, this process presents the following problem: some electrolyte remains in the crushed lithium battery waste. This electrolyte can react chemically with electrode materials (such as fluorinated phosphates and transition metal oxides) during subsequent processing, releasing hydrogen fluoride (HF), volatile organic compounds (VOCs), and phosphorus oxides (PO4). x Toxic and harmful gases, such as those , pose a serious threat to the health of operators and the safety of the working environment.

[0006] Currently, traditional feeding devices mostly rely on the natural dripping of electrolyte under gravity for collection, which is inefficient and time-consuming, making it difficult to meet the needs of continuous and high-efficiency production.

[0007] To address the aforementioned issues, there is an urgent need for an automatic lithium battery feeding device that uses mechanical vibration to assist in dehydration, thereby enhancing the removal of residual electrolyte from the crushed material and significantly improving the electrolyte collection rate and efficiency. Summary of the Invention

[0008] In response to the problems raised in the background art, the present invention provides an automatic lithium battery feeding device to solve them, and the present invention will be further described below.

[0009] An automatic lithium battery feeding device includes a support base, a conveyor frame slidably mounted on the support base, a compression spring between the conveyor frame and the support base, a rotating shaft one and a rotating shaft two respectively rotatably connected to the front and rear ends of the conveyor frame, a conveyor belt wound between the rotating shaft one and the rotating shaft two, a motor one installed at the rear end of the conveyor frame, the output shaft of the motor one being keyed to the rotating shaft two, detachable collection boxes symmetrically arranged on the left and right sides of the conveyor frame, and two sets of symmetrically distributed vibration components at the bottom of the conveyor frame to improve the electrolyte removal efficiency.

[0010] Preferably, the vibration assembly includes a support frame fixed to the front and rear sides of the bottom of the conveyor frame. The two support frames are distributed corresponding to the first and second rotating shafts. Each support frame is connected to two symmetrically distributed gears. Both ends of the first and second rotating shafts are keyed to gears. The gears are distributed corresponding to the adjacent gears and mesh with each other for transmission.

[0011] Preferably, the inner sidewalls of the gear two are keyed with cross-shaped vibration frames, the middle part of the cross-shaped vibration frame is connected to the adjacent receiving frame, and the free end of the cross-shaped vibration frame is pressed into contact with the top surface of the support seat.

[0012] Preferably, the upper surface of the conveyor belt is covered with a baffle plate.

[0013] Preferably, each free end of the cross-shaped vibration frame is provided with a roller.

[0014] Preferably, filter plates with holes are fixed to the left and right sides of the conveyor frame, and the holes of the filter plates are connected to the inner cavity of the detachable collection box.

[0015] Preferably, a closed cover is fixed to the support base via a connecting frame. The closed cover is suspended above the baffle plate. Both the front and rear ends of the closed cover are slidably connected to closed plates. The bottom of the closed plate directly contacts the top of the baffle plate. Air holes are opened on the baffle plate. A mounting cover is detachably connected to the top of the closed cover. The top of the mounting cover is connected to an external exhaust gas collection device via a pipe. The inner cavity of the mounting cover is connected to the inner cavity of the closed cover. A connecting frame is fixed inside the mounting cover. A second motor is mounted on the connecting frame. A rotating rod is rotatably connected through the connecting frame. The end of the rotating rod is keyed to the output shaft of the second motor. A spiral fan is keyed to the rotating rod.

[0016] Preferably, ventilation slots are provided on both the left and right sides of the enclosure, and adjustable louvers are installed in the ventilation slots. A rotating frame is keyed to the rotating rod, and the rotating frame is located below the spiral fan. Two symmetrically distributed swinging parts are hinged to the rotating frame, and the swinging parts have a large mass. A lifting frame is slidably connected to the bottom of the rotating rod. The lifting frame and the swinging parts are hinged together by a connecting rod. A sliding frame is rotatably connected to the bottom of the lifting frame and is slidably connected to the rotating rod. Adjusting gears are rotatably connected to the side walls of the louvers. Gear threes, corresponding to and meshing with the adjusting gears, are rotatably connected inside the enclosure. Racks, corresponding to and meshing with gear threes, are keyed to both ends of the sliding frame.

[0017] Preferably, the front side of the conveyor frame is provided with an inclined feed inlet, the outlet end of the feed inlet is connected to the upper surface of the conveyor belt, a spiral component is connected through the feed inlet, a belt is provided between the end of the first rotating shaft and the corresponding end of the spiral component, a discharge plate is slidably connected to the feed inlet of the conveyor frame, two symmetrically distributed support rods are fixed to the conveyor frame, the left and right ends of the discharge plate are slidably connected to the adjacent support rods, and a connecting rod two is hinged between the end of the discharge plate and the end of the spiral component.

[0018] Beneficial effects: Compared with the existing technology, this device provides a vibration foundation for the conveyor frame and the residue it carries through the vibration component. The mechanical vibration effectively breaks the adhesion state of the electrolyte in the pores of the residue, promotes its rapid precipitation, accelerates the outflow rate of the electrolyte, and improves the collection efficiency.

[0019] The harmful gas collection component collects the toxic and harmful gases generated by the reaction of trace amounts of electrolyte and electrode materials remaining in the residue, preventing them from spreading in the open environment.

[0020] The centrifugal speed regulator structure is formed by the rotating frame, connecting rod 1, and lifting frame. The opening of the louvers is linked to introduce external air to form a supplementary airflow, which effectively accelerates the airflow circulation inside the sealed enclosure and increases the emission rate of harmful gases. Attached Figure Description

[0021] Figure 1 : A three-dimensional structural schematic diagram of the present invention; Figure 2 : A partial structural schematic diagram of the present invention; Figure 3 : A schematic diagram of the structure at point A of this invention; Figure 4 : A schematic diagram of the structure of the belt, spiral component, feed plate and other related components of this invention; Figure 5 : A schematic diagram of the structure of the conveyor frame, filter plate, and collection box of the present invention; Figure 6 : A schematic diagram of the structure of the spiral fan, rotating frame, oscillating component, and other related parts of this invention; In the diagram: 1-Support base, 11-Conveyor frame, 101-Shaft 1, 102-Shaft 2, 12-Conveyor belt, 13-Motor 1, 14-Support frame, 2-Blocking plate, 21-Gear 1, 22-Gear 2, 23-Compression spring, 24-Collection box, 25-Filter plate, 26-Cross-shaped vibrating frame, 261-Roller, 3-Enclosed cover, 31-Mounting cover, 311-Connecting frame, 312-Motor 2, 313-Adjusting gear, 314-Enclosed plate, 32-Rotor, 321-Spiral fan, 33-Rotating frame, 34-Swinging component, 35-Connecting rod 1, 36-Lifting frame, 37-Sliding frame, 38-Rack and pinion, 39-Gear 3, 391-Louvre, 4-Belt, 41-Spiral component, 42-Discharge plate, 43-Connecting rod 2, 44-Support rod. Detailed Implementation

[0022] Next, combine Figures 1-6 A specific embodiment of the present invention will be described in detail below.

[0023] refer to Figure 1 and Figure 2 An automatic lithium battery feeding device includes a support base 1, on which a conveyor frame 11 is slidably connected. A compression spring 23 is provided between the conveyor frame 11 and the support base 1 to provide a reset base for the conveyor frame 11. A rotating shaft 101 and a rotating shaft 102 are respectively connected to the front and rear ends of the conveyor frame 11. A conveyor belt 12 is wound between the rotating shaft 101 and the rotating shaft 102 to carry and convey the crushed lithium battery residue (hereinafter collectively referred to as: residue). A motor 13 is installed at the rear end of the conveyor frame 11. The output shaft of the motor 13 is keyed to the rotating shaft 102 to provide a stable driving force for the conveyor belt 12 and realize the continuous conveying of residue. Removable collection boxes 24 are symmetrically arranged on the left and right sides of the conveyor frame 11 to receive and collect residual electrolyte precipitated from the residue on the conveyor belt 12 for subsequent processing and recycling.

[0024] As described in the background art, conventional feeding devices rely on the natural dripping of electrolyte under gravity for collection. To improve the electrolyte removal efficiency, the bottom of the conveyor frame 11 is provided with two sets of symmetrically distributed vibration components, which are designed to provide a vibration foundation for the conveyor frame 11 and the residue it carries. Through mechanical vibration, the adhesion state of the electrolyte in the pores of the residue is effectively destroyed, promoting its rapid precipitation, accelerating the outflow speed of the electrolyte, and improving the collection efficiency.

[0025] refer to Figure 1 and Figure 2The vibration assembly includes a support frame 14 fixed to the front and rear sides of the bottom of the conveyor frame 11. The two support frames 14 are distributed corresponding to the first rotating shaft 101 and the second rotating shaft 102. Each support frame 14 is connected to two symmetrically distributed gears 22. Both ends of the first rotating shaft 101 and the second rotating shaft 102 are keyed to gears 21. Gears 21 and adjacent gears 22 are distributed corresponding to each other and mesh with each other for transmission.

[0026] refer to Figure 3 The inner wall of the gear 22 is keyed with a cross-shaped vibration frame 26. The middle part of the cross-shaped vibration frame 26 is connected to the adjacent receiving frame 14. The rotation of the gear 22 is linked to the rotation of the cross-shaped vibration frame 26. The free end of the cross-shaped vibration frame 26 is pressed and contacted with the top surface of the support seat 1, providing a vibration source and generating radial impact. This impact force is transmitted to the conveyor frame 11 through the gear 22 and the receiving frame 14, thereby causing the rotating shaft 101, the rotating shaft 202 and the entire conveyor frame 11 to reciprocate in the up and down direction.

[0027] Lithium battery residue is fed into conveyor belt 12. Motor 13 is started, and shaft 102 is activated. Shaft 101 and conveyor belt 12 rotate under control, conveying the residue. Based on the rotation of shaft 102, gear 21 rotates accordingly, meshing with adjacent gear 22. The cross-shaped vibrating frame 26, keyed to the rear wall of gear 22, rotates. The end of the cross-shaped vibrating frame 26 periodically presses against the support seat 1, generating radial pressure. This causes gear 22 to reciprocate vertically. This vibration is transmitted to the entire conveyor frame 11 through the receiving frame 14, causing shaft 101, shaft 102, and conveyor belt 12 to vibrate vertically. The vibration energy effectively acts on the residue carried on conveyor belt 12, disrupting the adhesion of residual electrolyte within the residue pores and significantly promoting its rapid precipitation and dripping.

[0028] To prevent the residue carried on the conveyor belt 12 from spilling due to mechanical vibration during vibration, a baffle plate 2 is provided on the upper surface of the conveyor belt 12. The baffle plate 2 has a certain weight and is stably attached to the surface of the conveyor belt 12, providing all-round physical coverage of the residue material without hindering its normal operation.

[0029] refer to Figure 3 During the rotation of the cross-shaped vibration frame 26 and the generation of periodic vibration, in order to reduce frictional resistance and mechanical wear during relative motion, each free end of the cross-shaped vibration frame 26 is provided with a roller 261. The roller 261 rotates synchronously with the vibration frame and forms rolling contact with the top surface of the support seat 1, effectively converting sliding friction into rolling friction, significantly reducing frictional resistance, improving vibration transmission efficiency, and ensuring the stability and durability of equipment operation.

[0030] refer to Figure 5 To optimize electrolyte collection during the vibration-induced dehydration process, perforated filter plates 25 are fixed to the left and right sides of the conveyor frame 11. The perforations of the filter plates 25 are connected to the inner cavity of the detachable collection box 24. Under mechanical vibration, residual electrolyte shaken off from the lithium battery residue flows out through the holes in the filter plates 25 on the side wall of the conveyor frame 11 and collects into the collection box 24, achieving efficient and orderly liquid recovery. After the operation is completed, the collection box 24 can be disassembled from both sides of the conveyor frame 11 for unified processing or resource recycling of the collected electrolyte.

[0031] While the vibration component of this device can effectively promote the removal of residual electrolyte from lithium battery residues and improve collection efficiency, it is difficult to achieve complete electrolyte precipitation due to limitations such as material morphology, pore adsorption, and contact conditions. The trace amounts of electrolyte remaining in the residue may still undergo hydrolysis or thermal decomposition reactions with electrode materials (such as fluorinated phosphates and transition metal oxides) during subsequent transportation and processing, continuously releasing hydrogen fluoride (HF), volatile organic compounds (VOCs), and phosphorus oxides (PO4). x This device contains toxic and harmful gases such as [list of gases]. These gases are not only highly corrosive, toxic, and environmentally hazardous, but can also cause serious damage to the respiratory system of operators, threatening operational safety. Therefore, this device is equipped with a hazardous gas collection component. This component is used to collect and guide the release of toxic gases during the transportation process, preventing their diffusion in open environments.

[0032] refer to Figure 6 A closed cover 3 is fixed to the support base 1 via a connecting frame 311. The closed cover 3 is suspended above the baffle plate 2. Both the front and rear ends of the closed cover 3 are slidably connected to a closed plate 314. The bottom of the closed plate 314 directly contacts the top of the baffle plate 2. Its function is twofold: firstly, the closed plate 314 and the closed cover 3 always form a complete sealed space at the top of the baffle plate 2; secondly, the sliding connection of the closed plate 314 ensures that the closed cover 3 does not affect the overall vibration effect of the conveyor frame 11 and the baffle plate 2. The baffle plate 2 has vents, through which harmful gases from the reaction of trace amounts of electrolyte with electrode materials are released into the closed cover 3.

[0033] The top of the enclosed cover 3 is detachably connected to an installation cover 31. The installation cover 31 is equipped with components for gas collection. The top of the installation cover 31 is connected to an external waste gas collection device through a pipe. Harmful gases are directionally transported to the subsequent treatment unit to achieve centralized purification and emission compliance.

[0034] The inner cavity of the mounting cover 31 is connected to the inner cavity of the closed cover 3. A connecting frame 311 is fixedly connected inside the mounting cover 31. A second motor 312 is mounted on the connecting frame 311. A rotating rod 32 is connected through the connecting frame 311. The end of the rotating rod 32 is keyed to the output shaft of the second motor 312. A spiral fan 321 is keyed to the rotating rod 32.

[0035] When the device is in operation, harmful gases generated by the reaction of trace electrolyte with electrode materials are released into the sealed cover 3 through the pores. Based on the sealing plate 314 and the sealed cover 3 forming a complete sealed space on top of the baffle plate 2, covering the baffle plate 2, the harmful gases are effectively controlled in the sealed cover 3 and cannot escape.

[0036] Subsequently, motor 312 is started, driving the rotating rod 32 and the spiral fan 321 to rotate at high speed, generating directional negative pressure airflow, which causes the harmful gases accumulated inside the sealed cover 3 to be forcibly discharged through the connecting pipe under the guidance of the airflow and transported to the external collection device.

[0037] refer to Figure 6 To enhance the flow efficiency of harmful gases inside the enclosure 3 and promote their rapid discharge, ventilation slots are provided on both the left and right sides of the enclosure 3. Adjustable louvers 391 are installed in the ventilation slots. Initially, the lower louvers 391 are kept closed to maintain the airtightness inside the enclosure 3.

[0038] This device introduces external air to form a supplementary airflow by regulating the opening of the louvers 391, which effectively accelerates the airflow circulation inside the enclosed enclosure and increases the emission rate of harmful gases. The following design is made to achieve automatic and linked adjustment of the louvers 391.

[0039] A rotating frame 33 is keyed to the rotating rod 32, located below the spiral fan 321. Two symmetrically distributed swinging members 34 are hinged to the rotating frame 33, each with a large mass, forming a centrifugal mass body. A lifting frame 36 is slidably connected to the bottom of the rotating rod 32. The lifting frame 36 and the swinging members 34 are hinged together by a connecting rod 35. That is, the rotating frame 33, the connecting rod 35, and the lifting frame 36 together constitute a centrifugal speed regulator structure. A sliding frame 37 is slidably connected to the bottom of the lifting frame 36, and the sliding frame 37 is slidably connected to the rotating rod 32. When the motor 312 drives the rotating rod 32 to rotate, the swinging members 34 are thrown outward under the action of centrifugal force, pushing the lifting frame 36 to slide upward along the rotating rod 32 through the connecting rod 35. The higher the rotation speed, the greater the centrifugal force, the more significant the swinging amplitude, and the greater the upward displacement of the lifting frame 36, which in turn drives the sliding frame 37 to move upward.

[0040] Each side wall of the louver 391 is connected to an adjusting gear 313, and the rotation angle of the louver 391 can be adjusted by rotating the adjusting gear 313. Inside the enclosure 3, there is a gear 39 that corresponds to and meshes with the adjusting gear 313. Both ends of the sliding frame 37 are keyed to racks 38 that correspond to and mesh with the gears 39.

[0041] As the sliding frame 37 moves upward, it drives the rack 38 to move upward. As the rack 38 moves upward, the rack 38 and the gear 39 mesh, and the gear 39 is driven to rotate. The rotation of the gear 39 drives the adjusting gear 313 to rotate, thereby controlling the opening of the louver 391. The higher the speed, the larger the opening angle of the louver 391, and the air intake increases accordingly, forming an intelligent air replenishment mechanism that dynamically matches the exhaust capacity.

[0042] At this time, the harmful gases inside the enclosed hood 3 are forcibly discharged into the external exhaust gas treatment device through the top pipe of the mounting hood 31, leading to the formation of negative pressure inside the enclosed hood 3. As the louvers 391 gradually open under the action of the centrifugal speed regulating mechanism, external air is drawn into the enclosed hood 3 from the ventilation slots on both sides, forming a directional airflow that effectively flushes and carries the residual harmful gases toward the top pipe of the mounting hood 31, thereby increasing the emission rate of the harmful gases.

[0043] refer to Figure 4 To achieve uniform distribution of residue on the conveyor belt 12, this device is equipped with a uniform feeding component on the front side of the conveyor frame 11 to achieve controllable and decentralized feeding. The front side of the conveyor frame 11 is provided with an inclined feeding port, and the outlet end of the feeding port is connected to the upper surface of the conveyor belt 12. A spiral component 41 is connected through the feeding port. The residue is fed in from the feeding port. Through the rotation of the spiral component 41, the accumulated residue is stirred and dispersed, so that it is evenly distributed on the conveyor belt 12, preventing local accumulation and improving the uniformity and efficiency of subsequent vibration dehydration.

[0044] To achieve the rotation of the spiral component 41, a belt 4 is provided between the end of the rotating shaft 101 and the corresponding end of the spiral component 41 to transmit the rotational motion of the rotating shaft 101 to the spiral component 41, so as to achieve synchronous rotation without the need for an additional drive device.

[0045] The feed inlet of the conveyor frame 11 is slidably connected to a feed plate 42. Under normal conditions, the feed plate 42 is sealed at the feed inlet to control the feeding and unloading of materials. Two symmetrically distributed support rods 44 are fixedly connected to the conveyor frame 11. The left and right ends of the feed plate 42 are slidably connected to the adjacent support rods 44 to realize the vertical guiding and sliding of the feed plate 42. A connecting rod 43 is hinged between the end of the feed plate 42 and the end of the auger 41.

[0046] When motor 13 starts, shaft 2 102, shaft 1 101 and conveyor belt 12 rotate under control. Based on the rotation of shaft 1 101, under the action of belt 4, the linkage screw 41 rotates to continuously disperse the residue entering the feed inlet. As the screw 41 rotates, under the action of connecting rod 2 43, the linkage discharge plate 42 slides up and down on the support rod 44 to realize the periodic opening and closing of the feed inlet. Through the reciprocating motion of the discharge plate 42, the intermittent feeding of residue is controlled. The synchronous rotation of screw 41 spreads the residue evenly, and finally the residue falls steadily onto the conveyor belt 12 in a dispersed and continuous state.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic lithium battery feeding device, comprising a support base (1), a conveyor frame (11) slidably connected to the support base (1), a compression spring (23) provided between the conveyor frame (11) and the support base (1), a rotating shaft one (101) and a rotating shaft two (102) respectively rotatably connected to the front and rear ends of the conveyor frame (11), a conveyor belt (12) wound between the rotating shaft one (101) and the rotating shaft two (102), a motor one (13) installed at the rear end of the conveyor frame (11), the output shaft of the motor one (13) being keyed to the rotating shaft two (102), and detachable collection boxes (24) symmetrically arranged on the left and right sides of the conveyor frame (11), characterized in that: To improve the electrolyte removal efficiency, the bottom of the conveyor frame (11) is provided with two sets of symmetrically distributed vibration components.

2. The automatic lithium battery feeding device according to claim 1, characterized in that: The vibration assembly includes a support frame (14) fixed to the front and rear sides of the bottom of the conveyor frame (11). The two support frames (14) are distributed in correspondence with the first rotating shaft (101) and the second rotating shaft (102). Each support frame (14) is connected to two symmetrically distributed gears (22). Both ends of the first rotating shaft (101) and the second rotating shaft (102) are keyed with gears (21). The gears (21) and the adjacent gears (22) are distributed in correspondence and mesh with each other for transmission.

3. The automatic lithium battery feeding device according to claim 2, characterized in that: The inner sidewall of the gear 2 (22) is keyed with a cross-shaped vibration frame (26). The middle part of the cross-shaped vibration frame (26) is connected to the adjacent support frame (14). The free end of the cross-shaped vibration frame (26) is pressed against the top surface of the support seat (1).

4. The automatic lithium battery feeding device according to claim 1, characterized in that: The upper surface of the conveyor belt (12) is covered with a baffle plate (2).

5. The automatic lithium battery feeding device according to claim 3, characterized in that: Each free end of the cross-shaped vibration frame (26) is provided with a roller (261).

6. The automatic lithium battery feeding device according to claim 2, characterized in that: The left and right sides of the conveyor frame (11) are fixed with filter plates (25) with holes, and the holes of the filter plates (25) are connected to the inner cavity of the detachable collection box (24).

7. The automatic lithium battery feeding device according to claim 1, characterized in that: A closed cover (3) is fixedly connected to the support base (1) via a connecting frame (311). The closed cover (3) is suspended above the baffle plate (2). Both the front and rear ends of the closed cover (3) are slidably connected to a closed plate (314). The bottom of the closed plate (314) is in direct contact with the top of the baffle plate (2). The baffle plate (2) has air holes. The top of the closed cover (3) is detachably connected to an installation cover (31). The top of the installation cover (31) is connected to an external exhaust gas collection device via a pipe. The inner cavity of the installation cover (31) is connected to the inner cavity of the closed cover (3). A connecting frame (311) is fixedly connected inside the installation cover (31). A second motor (312) is installed on the connecting frame (311). A rotating rod (32) is rotatably connected through the connecting frame (311). The end of the rotating rod (32) is keyed to the output shaft of the second motor (312). A spiral fan (321) is keyed to the rotating rod (32).

8. The automatic lithium battery feeding device according to claim 7, characterized in that: Ventilation slots are provided on both the left and right sides of the enclosed cover (3), and adjustable louvers (391) are installed in the ventilation slots. A rotating frame (33) is keyed to the rotating rod (32), and the rotating frame (33) is located below the spiral fan (321). Two symmetrically distributed swinging parts (34) are hinged on the rotating frame (33). The swinging parts (34) have a large mass. A lifting frame (36) is slidably connected to the bottom of the rotating rod (32). The lifting frame (36) and the swinging parts (391) are connected to each other. 34) are hinged together by a connecting rod (35). The bottom of the lifting frame (36) is connected to a sliding frame (37). The sliding frame (37) is slidably connected to the rotating rod (32). The side walls of the louvers (391) are connected to adjusting gears (313). The enclosed cover (3) is connected to gear three (39) that corresponds to and meshes with the adjusting gear (313). The left and right ends of the sliding frame (37) are keyed to racks (38) that correspond to and mesh with gear three (39).

9. The automatic lithium battery feeding device according to claim 6, characterized in that: The front side of the conveyor frame (11) is provided with an inclined feed inlet. The outlet end of the feed inlet is connected to the upper surface of the conveyor belt (12). A spiral component (41) is connected through the feed inlet. A belt (4) is provided between the end of the rotating shaft (101) and the corresponding end of the spiral component (41). A feed plate (42) is slidably connected to the feed inlet of the conveyor frame (11). Two symmetrically distributed support rods (44) are fixed on the conveyor frame (11). The left and right ends of the feed plate (42) are slidably connected to the adjacent support rods (44). A connecting rod (43) is hinged between the end of the feed plate (42) and the end of the spiral component (41).

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