Integrated processing equipment for manufacturing ultra-small spherical graphite negative electrode of lithium battery

Abstract

The application discloses a kind of integrated processing equipment of ultra-small spherical graphite for manufacturing lithium battery negative electrode, belong to integrated processing equipment technical field, for solving the technical problems that multiple processing equipment is needed to be used in cooperation for processing and forming lithium battery negative electrode graphite material, cause powdery graphite material waste, surrounding operation environment pollution, multiple equipment patching combination processing needs certain manpower assistance, prone to operation error;Including feed hopper, the top of feed hopper is equipped with telescopic baffle, and guide pillar is erected in the inner chamber bottom of feed hopper;In the application, large-capacity feed hopper accommodates multiple graphite powder at a time, avoids continuous filling to cause graphite powder to drift and diffuse with airflow, and servo motor drives forming roller to extrude graphite powder in ball forming equipment, to facilitate one-time multiple graphite pellet forming processing.

Description

Technical Field

[0001] This invention relates to the field of integrated processing equipment technology, and in particular to an integrated processing equipment for manufacturing ultra-small spherical graphite anodes for lithium batteries. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Currently, the negative electrode materials used in lithium-ion batteries are basically carbon materials, such as artificial graphite, natural graphite, mesophase carbon microspheres, petroleum coke, carbon fiber, pyrolytic resin carbon, etc.

[0003] The current processing of graphite materials for lithium battery anodes requires the use of multiple processing devices. This often results in powdered graphite material being dispersed and scattered by airflow during the transfer, feeding, molding, and discharge processes between these devices. This not only wastes the powdered graphite material and pollutes the surrounding work environment, but also requires manual assistance to process multiple devices, which can lead to operational errors and affect processing efficiency. Furthermore, the graphite waste generated during the feeding, molding, and discharge processes cannot be recycled and reused immediately, resulting in contamination of the graphite waste and reducing its utilization value.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated processing equipment for ultra-small spherical graphite for manufacturing lithium battery anodes. This addresses the problem that existing lithium battery anode graphite processing equipment requires multiple processing devices to work together, which easily leads to the powdered graphite material being transferred, added, shaped, and discharged between these devices, causing it to be scattered and dispersed by airflow. This not only wastes the powdered graphite material and pollutes the surrounding working environment, but also requires a certain amount of human assistance to process multiple devices, which is prone to operational errors and affects processing efficiency. Furthermore, the graphite waste generated during the adding, shaping, and discharging processes of existing equipment cannot be recycled and reused in a timely manner, resulting in the contamination of graphite waste and reducing its utilization value.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] An integrated processing device for producing ultra-small spherical graphite anodes for lithium batteries includes a feeding hopper, a telescopic baffle at the top of the feeding hopper, guide columns at the bottom of the inner cavity of the feeding hopper, vibration frames on the outer walls of both sides of the guide columns, a circulating conveying mechanism mounted on the outer wall of one end of the feeding hopper, a spherical forming device fixedly connected to the bottom of the feeding hopper, forming rollers symmetrically rotatably connected to both sides inside the spherical forming device, a strainer at the bottom of the forming rollers, a discharge port connected to the strainer at the bottom side of the spherical forming device, and a powder filtering mechanism connected to the circulating conveying mechanism at one end of the spherical forming device.

[0008] The powder filtration mechanism is equipped with an exhaust fan at the top, and a cloth belt filter is embedded inside one end of the pelletizing device at the bottom of the exhaust fan. The discharge port is equipped with a second conveying pipe connected to the cloth belt filter at the top, and a lifting machine is embedded between the pelletizing device and the cloth belt filter at the bottom of the circulating conveying mechanism.

[0009] The top opening of the feed hopper is provided with slide rails on both sides that are connected to the telescopic baffle. The top of one side of the telescopic baffle is provided with a handle. There are multiple sets of dust suction holes in a rectangular array on the inner wall of the top of the feed hopper. Springs that are engaged with the vibration frame are symmetrically installed in the middle of both sides of the inner wall of the feed hopper. There are multiple sets of plates arranged at equal intervals on the surface of the vibration frame.

[0010] The guide post end face is provided with a transmission component that penetrates the feed hopper, and the other end of the feed hopper is provided with a vibrating motor connected to the transmission component at the bottom outside. The bottom of both sides of the guide post is provided with a discharge port that penetrates the ball-forming device.

[0011] The powder filtration mechanism is installed side by side with the cover, and a pulse valve is provided on the top side of the cloth belt filter;

[0012] The top of the lifting machine is provided with a return port that extends into the feed hopper. The side of the lifting machine is provided with a storage box connected to the belt filter. The bottom of the storage box is provided with a conveyor belt connected to the lifting machine. The top two sides of the lifting machine are provided with a conveyor pipe connected to the dust suction hole and the belt filter, and a pulse valve. The pulse valve is activated at regular intervals to generate pulse airflow that vibrates the belt filter, causing the belt filter to intercept the graphite circulating powder and slide it into the storage box.

[0013] Preferably, the top two sides of the inner cavity of the ball-forming device are provided with guide frames that partially cover the forming rollers. The surface of the forming rollers is recessed with multiple sets of arc-shaped grooves. A cover is snapped onto the top of the guide frame. Support columns connected to the cover are provided at the bottom of both sides of the outer wall of the feed hopper. A vibrating element connected to the vibration motor is provided at the bottom of one side of the sluice plate.

[0014] Preferably, the bottom of the squeegee is provided with a powder collection chamber, and the surface of the squeegee is provided with a hole communicating with the powder collection chamber. The powder collection chamber is provided with a conveying pipe connected to the cloth belt filter on the side near the discharge port. A servo motor is embedded in the middle of one end of the ball forming device, and the output end of the servo motor is provided with a drive shaft connected to the multi-group forming roller drive.

[0015] Preferably, a limiting block is provided on the edge of the top of the discharge port away from the balling device, a dust suction port connected to the conveying pipe is provided on the inner wall of the discharge port, and a discharge plate is provided at the bottom of the discharge port.

[0016] An integrated processing device for fabricating ultra-small spherical graphite anodes for lithium batteries, the working method of which includes the following steps:

[0017] Step 1: Pour the graphite powder into the feed hopper. The exhaust fan provides suction to the conveying pipe and dust extraction hole to extract and absorb the graphite powder that is scattered during the feeding process. When the feeding is complete, push the handle to close the feed hopper opening along the slide rail with the telescopic baffle.

[0018] Step 2: The vibrating motor drives the vibrating frame and vibrating components to vibrate synchronously through the transmission components. The vibrating frame drives the plate to vibrate and stir the graphite powder in the feed hopper. The graphite powder is kept loose and evenly enters the feeding port through continuous vibration. The forming rollers rotate and squeeze each other, so that the graphite powder in the relatively arc-shaped grooves is squeezed into balls to obtain graphite balls.

[0019] Step 3: The extruded graphite spheres are released from the arc-shaped groove as the forming roller rotates. The graphite spheres roll along the sprue to the discharge port, completing the graphite sphere forming process. The third conveyor pipe is provided with suction by the exhaust fan, which promotes the graphite powder waste residue on the sprue plate and the air containing graphite powder waste residue in the sphere forming equipment to enter the powder collection chamber. The third conveyor pipe extracts the graphite powder waste residue in the powder collection chamber and conveys it to the belt filter. The second conveyor pipe extracts the graphite powder waste residue in the discharge port area and conveys it to the belt filter. The belt filter intercepts and filters the air containing graphite powder waste residue to obtain graphite circulating powder. The pulse valve is activated at regular intervals to generate pulse airflow to vibrate the belt filter, causing the belt filter to intercept the graphite circulating powder and slide it into the storage box. The conveyor belt continuously transports the graphite circulating powder collected in the storage box to the lifting machine. The lifting machine extracts and conveys the graphite circulating powder through the return port into the feed hopper.

[0020] The beneficial effects of this invention are as follows:

[0021] (1) This invention uses a large-capacity feed hopper to accommodate a large amount of graphite powder at one time. The telescopic baffle assists in closing and opening the feed hopper, avoiding the graphite powder from being scattered and diffused by the airflow due to continuous filling, which would cause waste of graphite powder and pollution of the surrounding working environment. The vibrating frame, spring parts, and guide columns assist in the use of the feed hopper, keeping the graphite powder in the feed hopper in a loose state, and promoting the orderly entry of graphite powder into the discharge port under the action of vibration, avoiding blockage. The servo motor drives the forming roller to squeeze the graphite powder in the pelletizing equipment, which facilitates the one-time processing of a large amount of graphite pellets, saving time and effort. At the same time, the stencil and powder collection chamber are used to collect the graphite powder residue left in the pelletizing equipment.

[0022] (2) This invention uses a dust suction port and a conveying pipe to collect graphite powder residue left over from the graphite ball forming process. The air containing the graphite powder residue is intercepted and filtered by a cloth belt filter and a pulse valve to obtain graphite recycled powder. The recycling conveying mechanism transports the graphite recycled powder intercepted by the powder filtration mechanism to the feed hopper through a lifting machine, thus completing the recycling and utilization of graphite powder during the processing of graphite balls, reducing graphite powder waste, improving graphite powder utilization rate, and forming an integrated device. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings;

[0024] Figure 1 This is a three-dimensional view of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the feed hopper of the present invention;

[0026] Figure 3 This is a top view of the feed hopper section of the present invention;

[0027] Figure 4 This is a cross-sectional view of the pelletizing device of the present invention;

[0028] Figure 5 This is a side view of the powder filtration mechanism of the present invention;

[0029] Figure 6 This is a bottom view of the inner wall of the discharge port of the present invention;

[0030] Figure 7 These are schematic diagrams of the respective structures of the circulating conveying mechanism of the present invention.

[0031] Legend: 1. Feed hopper; 101. Telescopic baffle; 102. Dust suction hole; 103. Spring component; 104. Vibrating frame; 105. Plate; 106. Support column; 107. Guide column; 108. Transmission component; 109. Discharge port; 110. Handle; 111. Vibrating motor; 2. Circulating conveyor mechanism; 201. Return port; 202. Lifting machine; 203. Conveyor belt; 204. Storage box; 205. Conveying... 1. Pipe 1; 3. Powder filtration mechanism; 301. Exhaust fan; 302. Belt filter; 303. Pulse valve; 4. Cover; 5. Pelletizing equipment; 501. Guide frame; 502. Forming roller; 503. Vibrating component; 504. Strainer plate; 505. Powder collection chamber; 506. Conveying pipe 3; 507. Servo motor; 508. Drive shaft; 6. Discharge port; 601. Conveying pipe 2; 602. Discharge plate; 603. Dust suction port. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1:

[0034] This embodiment addresses the problem that existing graphite materials for lithium battery anodes require multiple processing devices during processing and molding. This often results in powdered graphite material being transferred, added, molded, and dispersed by airflow during the process, leading to waste, pollution of the surrounding work environment, and the need for manual assistance in combining multiple devices, which can easily cause operational errors and affect processing efficiency.

[0035] Please see Figure 1-5As shown, this invention is an integrated processing equipment for producing ultra-small spherical graphite for lithium battery anodes. It includes a feeding hopper 1, with a telescopic baffle 101 at the top and a guide column 107 at the bottom of the inner cavity. The large-capacity feeding hopper 1 can hold a large amount of graphite powder at once. The telescopic baffle 101 assists in closing and opening the feeding hopper 1, preventing continuous filling from causing graphite powder to disperse and spread with the airflow, resulting in graphite powder waste and pollution of the surrounding working environment. Vibration frames 104 are mounted on the outer walls of both sides of the guide column 107. A circulating conveying mechanism 2 is mounted on the outer wall of one end of the feeding hopper 1. A spherical forming device 5 is fixedly connected to the bottom of the feeding hopper 1. Forming rollers 502 are symmetrically rotatably connected to both sides inside the spherical forming device 5. A strainer 504 is located at the bottom of the forming rollers 502. An outlet 6 connected to the strainer 504 is located on the bottom side of the spherical forming device 5. A powder filtering mechanism 3 connected to the circulating conveying mechanism 2 is located at one end of the spherical forming device 5.

[0036] The top opening of the feed hopper 1 is provided with slide rails on both sides that are connected to the telescopic baffle 101. The top of one side of the telescopic baffle 101 is provided with a handle 110. There are multiple sets of dust suction holes 102 in a rectangular array on the inner wall of the top of the feed hopper 1. Springs 103 that are engaged with the vibrating frame 104 are symmetrically installed in the middle of both sides of the inner wall of the feed hopper 1. Multiple sets of plates 105 are arranged at equal intervals on the surface of the vibrating frame 104. The vibrating frame 104, springs 103, and guide columns 107 assist the feed hopper 1 in its use, keeping the graphite powder in the feed hopper 1 in a loose state, and promoting the orderly entry of the graphite powder into the discharge port 109 under the action of vibration, so as to avoid blockage.

[0037] The end face of the guide column 107 is provided with a transmission component 108 that penetrates the feed hopper 1, and the bottom of the other end of the feed hopper 1 is provided with a vibration motor 111 connected to the transmission component 108. The bottom of both sides of the guide column 107 is provided with a discharge port 109 that penetrates the ball forming device 5.

[0038] The top two sides of the inner cavity of the pelletizing equipment 5 are provided with guide frames 501 that partially cover the forming roller 502. The surface of the forming roller 502 is recessed with multiple sets of arc-shaped grooves. The servo motor 507 drives the forming roller 502 to extrude graphite powder in the pelletizing equipment 5, which facilitates the one-time processing of a large number of graphite pellets. The top of the guide frame 501 is snapped with a cover 4. The bottom of both sides of the outer wall of the feed hopper 1 is provided with support columns 106 connected to the cover 4. The bottom of one side of the sprue plate 504 is provided with a vibrating element 503 that is driven by the vibrating motor 111.

[0039] The bottom of the stencil 504 is provided with a powder collection chamber 505. The surface of the stencil 504 is provided with a hole communicating with the powder collection chamber 505. The powder collection chamber 505 is provided with a conveying pipe 506 connected to the cloth belt filter 302 on the side near the discharge port 6. A servo motor 507 is embedded in the middle of one end of the ball forming device 5. The output end of the servo motor 507 is provided with a drive shaft 508 that is connected to the multi-group forming roller 502.

[0040] The large-capacity feed hopper 1 can hold a large amount of graphite powder at one time. The telescopic baffle 101 assists the feed hopper 1 in closing and opening, avoiding the graphite powder from being dispersed by the airflow due to continuous filling. The vibration frame 104, spring 103, and guide column 107 assist the feed hopper 1 in keeping the graphite powder in the feed hopper 1 in a loose state, and promote the orderly entry of the graphite powder into the discharge port 109 under the action of vibration. The servo motor 507 drives the forming roller 502 to squeeze the graphite powder in the pelletizing equipment 5, which facilitates the one-time processing of a large number of graphite pellets.

[0041] Example 2:

[0042] This embodiment addresses the problem that graphite waste generated during the feeding, molding, and discharging processes of existing equipment cannot be recycled and reused immediately, leading to contamination of the graphite waste and reduced utilization value.

[0043] Please see Figure 1 , Figure 5 , Figure 6 , Figure 7 As shown, the ultra-small spherical graphite integrated processing equipment for manufacturing lithium battery negative electrodes in this embodiment includes a powder filtration mechanism 3 with an exhaust fan 301 embedded at the top, a cloth filter 302 embedded inside one end of the ball-forming device 5 at the bottom of the exhaust fan 301, a conveying pipe 601 connected to the cloth filter 302 embedded at the top of the discharge port 6, and a dust suction port and a conveying pipe 601 used as auxiliary discharge ports to collect graphite powder residues left when the graphite balls are formed and removed from the equipment; and a lifting machine 202 embedded between the ball-forming device 5 and the cloth filter 302 at the bottom of the circulating conveying mechanism 2.

[0044] A limiting block 604 is provided on the edge of the top of the discharge port 6 away from the ball forming device 5. A dust suction port 603 connected to the conveying pipe 601 is provided on the inner wall of the discharge port 6. A discharge plate 602 is provided at the bottom of the discharge port 6.

[0045] The powder filtration mechanism 3 and the cover 4 are installed side by side. The top side of the cloth belt filter 302 is equipped with a pulse valve 303 that is fixedly connected to the inner wall of the pelletizing device 5. The cloth belt filter 302 and the pulse valve 303 intercept and filter the air containing graphite powder waste to obtain graphite recycled powder.

[0046] The top of the lifting machine 202 is provided with a return port 201 that extends into the inside of the feed hopper 1. The side of the lifting machine 202 is provided with a storage box 204 connected to the cloth belt filter 302. The bottom of the storage box 204 is provided with a conveyor belt 203 connected to the lifting machine 202. The circulating conveying mechanism 2 conveys the graphite circulating powder intercepted by the powder filtering mechanism 3 to the feed hopper 1 through the lifting machine 202. The top two sides of the lifting machine 202 are provided with conveying pipes 205 connected to the dust suction hole 102 and the cloth belt filter 302.

[0047] The dust suction port and the auxiliary discharge port of the conveying pipe are used to collect the graphite powder residue left when the graphite balls are formed and detached from the equipment; the cloth filter 302 and the pulse valve 303 intercept and filter the air containing the graphite powder residue to obtain graphite circulating powder; the circulating conveying mechanism 2 transports the graphite circulating powder intercepted by the powder filtering mechanism 3 to the feed hopper 1 through the lifting machine 202.

[0048] like Figure 1-7 As shown, the specific steps of this integrated processing equipment for fabricating ultra-small spherical graphite anodes for lithium batteries include:

[0049] Step 1: Pour graphite powder into the feed hopper 1. Use handle 110 to pull the telescopic baffle 101 along the slide rail to slide on top of the feed hopper 1 to open the feed hopper 1. Adjust the size of the top opening of the feed hopper 1 according to the feeding requirements. The exhaust fan 301 provides suction to the conveying pipe 205 and the dust suction hole 102. The dust suction hole 102 provides suction to the opening area of ​​the feed hopper 1 to extract and absorb the graphite powder that is scattered during feeding of the feed hopper 1, and enter the belt filter 302 along the conveying pipe 205. When feeding is complete, push handle 110 to close the opening of the feed hopper 1 along the slide rail with the telescopic baffle 101.

[0050] Step 2: Vibration motor 111 and servo motor 507 are started. Vibration motor 111 drives vibration frame 104 and vibration element 503 to vibrate synchronously through transmission component 108. Vibration frame 104 drives plate 105 to vibrate and stir graphite powder in feed hopper 1. The discharge port 109 is opened. Graphite powder is kept loose and evenly enters the discharge port 109 through continuous vibration. Servo motor 507 drives multiple forming rollers 502 to rotate synchronously through transmission shaft 508. Graphite powder slides down the discharge port 109 and guide frame 501 onto forming rollers 502. Loose graphite powder is filled into the arc grooves on forming rollers 502. The forming rollers 502 rotate and squeeze each other, so that the graphite powder in the opposite arc grooves is squeezed into balls to obtain graphite balls.

[0051] Step 3: The forming roller 502 continues to rotate. The extruded graphite balls detach from the arc-shaped groove as the forming roller 502 rotates, and fall onto the surface of the stencil plate 504. The graphite balls roll along the stencil plate 504 to the discharge port 6, completing the graphite ball forming process. At the same time, when the graphite balls detach from the forming roller 502, some residual graphite powder waste remains on the surface of the forming roller 502. This waste falls onto the stencil plate 504 through contact and friction with the guide frame 501. As the graphite balls roll along the stencil plate, some uncompacted graphite powder waste falls onto the stencil plate 504. The vibrating component 503 drives the stencil plate 504 to vibrate, promoting the rolling of the graphite balls and simultaneously promoting the graphite powder waste on the surface of the stencil plate 504 to pass through the holes and enter the powder collection chamber 505. The conveying pipe 306 is provided with suction by the exhaust fan 301, promoting the flow of graphite powder waste onto the stencil plate 504. The graphite powder waste residue and the air containing graphite powder waste residue in the pelletizing equipment 5 enter the powder collection chamber 505. The third conveyor pipe 506 extracts the graphite powder waste residue in the powder collection chamber 505 and conveys it to the belt filter 302. The second conveyor pipe 601 extracts the graphite powder waste residue in the discharge port 6 area and conveys it to the belt filter 302. The belt filter 302 intercepts and filters the air containing graphite powder waste residue to obtain graphite circulating powder. The pulse valve 303 is activated at regular intervals to generate pulse airflow to vibrate the belt filter 302, causing the belt filter 302 to intercept the graphite circulating powder and slide it into the storage box 204. The conveyor belt 203 continuously transports the graphite circulating powder collected in the storage box 204 to the lifting machine 202. The lifting machine 202 extracts and conveys the graphite circulating powder through the return port 201 into the feed hopper 1.

[0052] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated processing device for fabricating ultra-small spherical graphite anodes for lithium batteries, comprising a feed hopper (1), characterized in that, The top of the feeding hopper (1) is provided with a telescopic baffle (101), the bottom of the inner cavity of the feeding hopper (1) is provided with a guide column (107), the outer walls on both sides of the guide column (107) are provided with a vibrating frame (104), the outer wall of one end of the feeding hopper (1) is provided with a circulating conveying mechanism (2), the bottom of the feeding hopper (1) is fixedly connected with a ball forming device (5), the two sides of the ball forming device (5) are symmetrically connected to a forming roller (502), the bottom of the forming roller (502) is provided with a strainer (504), the bottom of the side of the ball forming device (5) is provided with a discharge port (6) connected to the strainer (504), and one end of the ball forming device (5) is provided with a powder filtering mechanism (3) connected to the circulating conveying mechanism (2). The powder filtration mechanism (3) is equipped with an exhaust fan (301) at the top, and a cloth belt filter (302) is embedded in one end of the ball forming device (5) at the bottom of the exhaust fan (301). The discharge port (6) is equipped with a conveying pipe (601) connected to the cloth belt filter (302) at the top. The circulating conveying mechanism (2) is equipped with a lifting machine (202) embedded between the ball forming device (5) and the cloth belt filter (302) at the bottom. The top opening of the feed hopper (1) is provided with slide rails on both sides that are connected to the telescopic baffle (101). The top of one side of the telescopic baffle (101) is provided with a handle (110). The inner wall of the top of the feed hopper (1) has a rectangular array of multiple sets of dust suction holes (102). The middle of both sides of the inner wall of the feed hopper (1) is symmetrically equipped with spring pieces (103) that are engaged with the vibration frame (104). The surface of the vibration frame (104) is arranged with multiple sets of plates (105) at equal intervals. The end face of the guide post (107) is provided with a transmission component (108) that penetrates the feed hopper (1), and the bottom of the other end of the feed hopper (1) is provided with a vibration motor (111) connected to the transmission component (108). The bottom of both sides of the guide post (107) is provided with a discharge port (109) that penetrates the ball forming device (5). The powder filtration mechanism (3) and the cover (4) are installed side by side, and the cloth belt filter (302) is provided with a pulse valve (303) on the top side. The top of the lifting machine (202) is provided with a return port (201) that extends into the feed hopper (1). The side of the lifting machine (202) is provided with a storage box (204) connected to the cloth belt filter (302). The bottom of the storage box (204) is provided with a conveyor belt (203) connected to the lifting machine (202). The top two sides of the lifting machine (202) are provided with a conveying pipe (205) connected to the dust suction hole (102) and the cloth belt filter (302). The pulse valve (303) is activated at regular intervals to generate pulse airflow to vibrate the cloth belt filter (302), so that the cloth belt filter (302) intercepts the graphite circulating powder and slides into the storage box (204).

2. The integrated processing equipment for fabricating ultra-small spherical graphite for lithium battery anodes according to claim 1, characterized in that, The ball-forming device (5) has a guide frame (501) that partially covers the forming roller (502) on both sides of the top of the inner cavity. The forming roller (502) has multiple sets of arc-shaped grooves on its surface. The guide frame (501) is fitted with a cover (4) on the top. The bottom of the outer wall of the feed hopper (1) is provided with a support column (106) connected to the cover (4). The bottom of one side of the sluice plate (504) is provided with a vibrating element (503) that is connected to the vibration motor (111).

3. The integrated processing equipment for fabricating ultra-small spherical graphite for lithium battery anodes according to claim 2, characterized in that, The bottom of the squeegee (504) is provided with a powder collection chamber (505). The surface of the squeegee (504) is provided with a hole communicating with the powder collection chamber (505). The powder collection chamber (505) is provided with a conveying pipe (506) connected to the cloth belt filter (302) on the side near the discharge port (6). A servo motor (507) is embedded in the middle of one end of the ball forming device (5). The output end of the servo motor (507) is provided with a drive shaft (508) that is connected to the multi-group forming roller (502).

4. The integrated processing equipment for fabricating ultra-small spherical graphite for lithium battery anodes according to claim 3, characterized in that, The top edge of the discharge port (6) away from the ball forming device (5) is provided with a limiting block (604), the inner wall of the discharge port (6) is provided with a dust suction port (603) connected to the conveying pipe (601), and the bottom of the discharge port (6) is provided with a discharge plate (602).

5. The integrated processing equipment for fabricating ultra-small spherical graphite for lithium battery anodes according to claim 4, characterized in that, The working method of this integrated processing equipment includes the following steps: Step 1: Pour graphite powder into the feed hopper (1). The exhaust fan (301) provides suction to the conveying pipe (205) and the dust suction hole (102) to extract and absorb the graphite powder that is scattered during the feeding of the feed hopper (1). When the feeding is completed, push the handle (110) to close the opening of the feed hopper (1) along the slide rail with the telescopic baffle (101). Step 2: The vibration motor (111) drives the vibration frame (104) and the vibration component (503) to vibrate synchronously through the transmission component (108). The vibration frame (104) drives the plate (105) to vibrate and stir the graphite powder in the feed hopper (1). The graphite powder is kept loose by continuous vibration and enters the feed port (109) evenly. The forming roller (502) rotates and squeezes each other, so that the graphite powder in the opposite arc groove is squeezed into a ball to obtain graphite balls. Step 3: The extruded graphite spheres are dislodged from the arc-shaped groove as the forming roller (502) rotates. The graphite spheres roll along the sprue plate (504) to the discharge port (6), completing the graphite sphere forming process. The third conveying pipe (506) is supplied with suction by the exhaust fan (301), which promotes the graphite powder waste residue on the sprue plate (504) and the air containing graphite powder waste residue in the sphere forming equipment (5) to enter the powder collection chamber (505). The third conveying pipe (506) extracts the graphite powder waste residue in the powder collection chamber (505) and conveys it to the belt filter (302). The second conveying pipe (601) extracts the graphite powder from the discharge port (6) area. The waste residue is conveyed to the belt filter (302). The belt filter (302) intercepts and filters the air containing the waste residue containing graphite powder to obtain graphite circulating powder. The pulse valve (303) is activated at regular intervals to generate pulse airflow to vibrate the belt filter (302), so that the belt filter (302) intercepts the graphite circulating powder and slides into the storage box (204). The conveyor belt (203) continuously transports the graphite circulating powder collected in the storage box (204) to the lifting machine (202). The lifting machine (202) extracts and conveys the graphite circulating powder through the return port (201) into the feed hopper (1).

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