Cooling device for graphitization processing of negative electrode material

By using a cooling device with a tumbling function and a circulating water cooling system during the graphitization process of lithium-ion battery anode materials, the problems of slow and uneven cooling speed were solved, achieving uniform cooling of materials and improved safety.

CN224302766UActive Publication Date: 2026-05-29SHIMIAN JINENG NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIMIAN JINENG NEW MATERIAL CO LTD
Filing Date
2025-07-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing equipment exhibits slow and uneven cooling rates during the graphitization process of lithium-ion battery anode materials, posing safety risks.

Method used

A cooling device with a tumbling function was designed. By tumbling the material with spiral blades and combining it with a circulating water cooling system, the material is ensured to be in uniform contact with the cooling medium and to achieve rapid cooling.

Benefits of technology

It improves the uniformity and speed of cooling, and reduces safety risks to equipment and operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cooling device is used in negative material graphitization processing, including bottom plate, the top fixed connection of bottom plate has the water tank, the top fixed connection of bottom plate has the casing, the inside of casing is provided with the mechanism that turns over, the top of casing is provided with the motor, the top intercommunication of water tank has the water pipe, the one end intercommunication of water pipe is away from water tank has the shell, the inside fixed connection of shell has the placement cylinder, the inside setting of water tank has the cooling mechanism, through bottom plate can support water tank and casing, through water pipe can recover the water in the shell inside to water tank, through placement cylinder can place raw material, through mechanism that turns over, can make material in the cooling process constantly turn over, ensure that every part can evenly contact cooling medium, avoid local overheating or supercooling to improve the uniformity of cooling effect, through cooling mechanism, can make water cooling circulation, make cooling water in circulation flow, absorb the heat in placement cylinder to realize quick cooling.
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Description

Technical Field

[0001] This utility model belongs to the technical field of cooling devices, specifically relating to a cooling device for graphitization processing of negative electrode materials. Background Technology

[0002] Graphitization is a crucial step in the production of lithium-ion battery anode materials. High-temperature treatment brings the structure of carbon materials closer to graphite, thereby improving the material's conductivity and cycle stability. However, the graphitized powder requires cooling to ensure material performance and the safety of subsequent processing.

[0003] However, in actual use, most existing equipment uses air cooling, which is slow, inefficient, and may lead to uneven material properties. Although air cooling is faster than natural cooling, the cooling speed is still limited, and there are certain risks to the safety of equipment and operators at high temperatures. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a cooling device for graphitization processing of negative electrode materials. This device has a turning function, which allows the material to be continuously turned during the cooling process, ensuring that each part can be evenly contacted by the cooling medium, avoiding local overheating or overcooling, thereby improving the uniformity of the cooling effect. It also has a circulating water cooling function, which allows the cooling water to circulate in the system, absorbing heat from the furnace, thereby achieving the advantage of rapid cooling.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for graphitization processing of negative electrode materials, comprising a base plate, a water tank fixedly connected to the top of the base plate, a housing fixedly connected to the top of the base plate, a flipping mechanism provided inside the housing, a motor provided at the top of the housing, a water pipe connected to the top of the water tank, an outer shell connected to the end of the water pipe away from the water tank, a placement cylinder fixedly connected inside the outer shell, and a cooling mechanism provided inside the water tank.

[0006] Preferably, the flipping mechanism includes a feeding column, which is fixedly connected to the inside of the housing. A rotating column is rotatably connected inside the feeding column, and a spiral blade is fixedly connected to the outside of the rotating column. The output end of the motor is fixedly connected to the rotating column, and a discharge pipe is provided between the housing and the outer shell.

[0007] Preferably, one end of the feeding pipe is connected to the feeding column, and the other end of the feeding pipe is connected to the placement cylinder. The bottom of the outer shell is provided with a feeding pipe, one end of which is connected to the placement cylinder, and the other end of which is connected to the feeding column.

[0008] Preferably, the cooling mechanism includes a refrigeration pipe, which is fixedly connected to the inside of the water tank, and a water pump is fixedly connected to the outside of the water tank, with the input end of the water pump connected to the water tank.

[0009] Preferably, the output end of the water pump is connected to a water inlet pipe, and the water inlet pipe is connected to the housing.

[0010] Preferably, a connecting pipe is provided between the housing and the outer shell, one end of the connecting pipe is connected to the housing, and the other end of the connecting pipe is connected to the outer shell, and a feed pipe is provided at the top of the placement cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When it is necessary to tumble the graphitized powder, the motor is started. The motor output rotates, which in turn drives the rotating column to rotate. The rotation of the rotating column drives the spiral blades to rotate, allowing the graphitized powder inside the placement cylinder to pass through the feeding pipe and enter the feeding column. The rotation of the spiral blades causes the graphitized powder to rise. When the graphitized powder rises to the designated position, it is discharged through the discharge pipe and then re-enters the placement cylinder. Through the above mechanism, the material can be continuously tumbled during the cooling process, ensuring that each part can be evenly contacted with the cooling medium, avoiding local overheating or overcooling, thereby improving the uniformity of the cooling effect.

[0013] 2. When cooling the graphitized powder is required, first add water to the water tank and cool it through the cooling pipe. Then, start the water pump, drawing water from the water tank through its output end. The cooled water is then discharged into the upper water pipe, flowing through it again into the gap between the feeding column and the shell. The water level in this gap rises continuously, and when it reaches a designated position, it is discharged through the connecting pipe into the gap between the placement cylinder and the outer shell. The water level in this gap continues to rise, reaching the designated position... The water flows back into the water tank through the water pipe, thus achieving a circulation effect. At the same time, when the graphitized powder inside the placement cylinder comes into contact with it, the cooling water in the gap between the placement cylinder and the outer shell will achieve a cooling effect. Meanwhile, the graphitized powder rises driven by the spiral blades and can evenly contact the feeding column. The cooling water in the gap between the feeding column and the shell will exchange heat, thus achieving a cooling effect. Through the above mechanism, the water cooling circulation can be achieved, and the cooling water will absorb the heat in the placement cylinder and the feeding column in the circulation, thereby achieving rapid cooling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the overall structure of this utility model;

[0016] Figure 3 This is a partial structural schematic diagram of the cooling mechanism of this utility model;

[0017] Figure 4 for Figure 1 A magnified schematic diagram of point A in the middle.

[0018] In the diagram: 1. Base plate; 2. Tilting mechanism; 201. Feeding column; 202. Rotating column; 203. Spiral blade; 204. Feeding pipe; 205. Discharging pipe; 3. Cooling mechanism; 301. Refrigeration pipe; 302. Water pump; 303. Water supply pipe; 304. Connecting pipe; 4. Water tank; 5. Water pipe; 6. Shell; 7. Motor; 8. Feeding pipe; 9. Outer shell; 10. Placement cylinder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Please see Figure 1-4 This utility model provides a technical solution: a cooling device for graphitization processing of negative electrode materials, including a base plate 1, a water tank 4 fixedly connected to the top of the base plate 1, a housing 6 fixedly connected to the top of the base plate 1, a flipping mechanism 2 provided inside the housing 6, a motor 7 provided at the top of the housing 6, a water pipe 5 connected to the top of the water tank 4, an outer shell 9 connected to the end of the water pipe 5 away from the water tank 4, a placement cylinder 10 fixedly connected inside the outer shell 9, and a cooling mechanism 3 provided inside the water tank 4.

[0022] In this embodiment, the base plate 1 supports the water tank 4 and the shell 6. The water pipe 5 can recycle the water inside the shell 9 back into the water tank 4. The placement cylinder 10 can be used to place the raw materials. The turning mechanism 2 can continuously turn the materials during the cooling process to ensure that each part can be evenly contacted by the cooling medium, avoiding local overheating or overcooling, thereby improving the uniformity of the cooling effect. The cooling mechanism 3 can circulate the cooling water, allowing the cooling water to absorb the heat inside the placement cylinder 10, thereby achieving rapid cooling.

[0023] Example 2:

[0024] Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: the flipping mechanism 2 includes a feeding column 201, which is fixedly connected to the inside of the housing 6. A rotating column 202 is rotatably connected inside the feeding column 201, and a spiral blade 203 is fixedly connected to the outside of the rotating column 202. The output end of the motor 7 is fixedly connected to the rotating column 202. A feeding pipe 205 is provided between the housing 6 and the outer shell 9. One end of the feeding pipe 205 is connected to the feeding column 201, and the other end of the feeding pipe 205 is connected to the placement cylinder 10. A feeding pipe 204 is provided at the bottom of the outer shell 9. One end of the feeding pipe 204 is connected to the placement cylinder 10, and the other end of the feeding pipe 204 is connected to the feeding column 201.

[0025] In this embodiment, when it is necessary to tumble the graphitized powder, the motor 7 is started. The output end of the motor 7 rotates, thereby driving the rotating column 202 to rotate. The rotation of the rotating column 202 drives the spiral blades 203 to rotate. The graphitized powder inside the placement cylinder 10 passes through the feeding pipe 204 and enters the interior of the feeding column 201. The rotation of the spiral blades 203 drives the graphitized powder to rise. When the graphitized powder rises to the designated position, it is discharged through the discharge pipe 205 and then re-enters the interior of the placement cylinder 10. Through the above mechanism, the material can be continuously tumbled during the cooling process, ensuring that each part can be evenly contacted with the cooling medium, avoiding local overheating or overcooling, thereby improving the uniformity of the cooling effect.

[0026] Example 3:

[0027] Please see Figure 1-4 Based on Embodiment 1 and Embodiment 2, this utility model provides a technical solution: the cooling mechanism 3 includes a refrigeration pipe 301, which is fixedly connected to the inside of the water tank 4. A water pump 302 is fixedly connected to the outside of the water tank 4. The input end of the water pump 302 is connected to the water tank 4, and the output end of the water pump 302 is connected to a water inlet pipe 303. The water inlet pipe 303 is connected to the housing 6. A connecting pipe 304 is provided between the housing 6 and the outer shell 9. One end of the connecting pipe 304 is connected to the housing 6, and the other end of the connecting pipe 304 is connected to the outer shell 9. A feed pipe 8 is provided at the top of the placement cylinder 10.

[0028] In this embodiment, when it is necessary to cool the graphitized powder, water is first added to the water tank 4, and the water is cooled through the cooling pipe 301. Then, the water pump 302 is started, and water is drawn from the water tank 4 through the output end of the water pump 302. The cooled water is then discharged into the upper water pipe 303 through the output end. The water then flows through the upper water pipe 303 again and into the gap between the feeding column 201 and the housing 6. The water level in the gap between the feeding column 201 and the housing 6 rises continuously. When it reaches a designated position, it is discharged through the connecting pipe 304 into the gap between the placement cylinder 10 and the outer shell 9. The water level in the gap between the placement cylinder 10 and the outer shell 9 continues to rise. When it rises to the designated position, it flows back into the water tank 4 through the water pipe 5, thus achieving a circulation effect. At the same time, when the graphitized powder inside the placement cylinder 10 comes into contact with it, the cooling water in the gap between the placement cylinder 10 and the outer shell 9 will achieve a cooling effect. Meanwhile, the graphitized powder rises by being driven by the spiral blades 203 and can evenly contact the feeding column 201. The cooling water in the gap between the feeding column 201 and the shell 6 will exchange heat, thus achieving a cooling effect. Through the above mechanism, the water cooling circulation can be achieved, and the cooling water will absorb the heat in the placement cylinder 10 and the feeding column 201 in the circulation flow, thereby achieving rapid cooling.

[0029] The working principle and usage process of this utility model are as follows: When it is necessary to turn the graphitized powder, the motor 7 is started. The output end of the motor 7 rotates, thereby driving the rotating column 202 to rotate. The rotation of the rotating column 202 drives the spiral blade 203 to rotate. At any time, the graphitized powder inside the placement cylinder 10 passes through the feeding pipe 204 and enters the interior of the feeding column 201. The rotation of the spiral blade 203 drives the graphitized powder to rise. When the graphitized powder rises to the designated position, it is discharged through the discharge pipe 205 and then enters the interior of the placement cylinder 10 again.

[0030] When the graphitized powder needs to be cooled, water is first added to the water tank 4 and cooled through the cooling pipe 301. Then, the water pump 302 is started, and water is drawn from the water tank 4 through the output end of the water pump 302. The cooled water is then discharged into the upper water pipe 303 through the output end. The water then flows through the upper water pipe 303 and into the gap between the feeding column 201 and the shell 6. The water level in the gap between the feeding column 201 and the shell 6 rises continuously. When it rises to the designated position, it is discharged through the connecting pipe 304 into the gap between the placement cylinder 10 and the outer shell 9. Subsequently, the water level in the gap between the placement cylinder 10 and the outer shell 9 rises continuously. When it rises to the designated position, it flows back into the water tank 4 through the water pipe 5, thereby achieving a circulation effect. At the same time, when the graphitized powder inside the placement cylinder 10 comes into contact with it, the cooling water in the gap between the placement cylinder 10 and the outer shell 9 will achieve a cooling effect. Meanwhile, the graphitized powder rises by being driven by the spiral blades 203 and can evenly contact the feeding column 201. The cooling water in the gap between the feeding column 201 and the shell 6 will exchange heat, thereby achieving a cooling effect.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for graphitization processing of negative electrode materials, comprising a base plate (1), characterized in that: A water tank (4) is fixedly connected to the top of the base plate (1), and a housing (6) is fixedly connected to the top of the base plate (1). A flipping mechanism (2) is provided inside the housing (6), and a motor (7) is provided on the top of the housing (6). A water pipe (5) is connected to the top of the water tank (4), and an outer shell (9) is connected to the end of the water pipe (5) away from the water tank (4). A placement cylinder (10) is fixedly connected inside the outer shell (9), and a cooling mechanism (3) is provided inside the water tank (4).

2. The cooling device for graphitization processing of negative electrode materials according to claim 1, characterized in that: The flipping mechanism (2) includes a feeding column (201), which is fixedly connected to the inside of the housing (6). A rotating column (202) is rotatably connected inside the feeding column (201), and a spiral blade (203) is fixedly connected to the outside of the rotating column (202). The output end of the motor (7) is fixedly connected to the rotating column (202), and a discharge pipe (205) is provided between the housing (6) and the outer shell (9).

3. The cooling device for graphitization processing of negative electrode materials according to claim 2, characterized in that: One end of the feeding pipe (205) is connected to the feeding column (201), and the other end of the feeding pipe (205) is connected to the placement cylinder (10). The bottom of the outer shell (9) is provided with a feeding pipe (204), one end of the feeding pipe (204) is connected to the placement cylinder (10), and the other end of the feeding pipe (204) is connected to the feeding column (201).

4. The cooling device for graphitization processing of negative electrode materials according to claim 1, characterized in that: The cooling mechanism (3) includes a refrigeration pipe (301), which is fixedly connected to the inside of the water tank (4). A water pump (302) is fixedly connected to the outside of the water tank (4), and the input end of the water pump (302) is connected to the water tank (4).

5. A cooling device for graphitization processing of negative electrode materials according to claim 4, characterized in that: The output end of the water pump (302) is connected to a water inlet pipe (303), and the water inlet pipe (303) is connected to the housing (6).

6. A cooling device for graphitization processing of negative electrode materials according to claim 5, characterized in that: A connecting pipe (304) is provided between the housing (6) and the outer shell (9). One end of the connecting pipe (304) is connected to the housing (6), and the other end of the connecting pipe (304) is connected to the outer shell (9). A feed pipe (8) is provided at the top of the placement cylinder (10).