Soft carbon material purification device

Abstract

A soft carbon material purification device comprises a crushing furnace, a low-temperature furnace and a high-temperature furnace which are arranged from top to bottom, a feeding port is formed in the top of the crushing furnace and at the end away from the low-temperature furnace, a grinding structure is arranged at the end, close to the low-temperature furnace, of the feeding port, and a sieve plate is arranged at the end, away from the feeding port, of the grinding structure. A cam vibration structure is arranged at the end, away from the grinding structure, of the sieve plate and on one side of the crushing furnace, and a sieve plate fixing structure is further arranged on the inner wall of the crushing furnace. According to the soft carbon material purification device provided by the invention, the particle sizes of purified pulverized coal are distinguished by arranging the sieve plate which is convenient to disassemble, and the grinding gap is adjusted by arranging the adjusting structure in the grinding motor box, so that the final grinding particle size range is optimized.

Description

Technical Field

[0001] The present invention relates to the field of purification of anode materials, and more specifically, to a purification device for soft carbon materials. Background Art

[0002] Soft carbon refers to carbon with a high degree of graphitization after the heat treatment temperature reaches the graphitization temperature. Common soft carbon materials include coke, graphitized mesophase carbon microbeads (MCMB), carbon fiber, etc. Graphitization is to use thermal activation to realize the orderly transformation of thermodynamically unstable carbon atoms from a turbostratic structure to a graphite crystal structure.

[0003] It has been found through research that coal materials such as coke materials and anthracite can all show graphitization to varying degrees at high temperatures above 2500°C. For example, when choosing coke materials for high-temperature carbonization treatment above 2500°, some coke does not form a graphitized structure at high temperatures, so that coke is still doped after high-temperature heat treatment, affecting the purity of the final product. Therefore, it is necessary to re-heat treat the coke materials after high-temperature heat treatment in order to achieve the purpose of improving the purity of the final product.

[0004] At the same time, during the pretreatment process, the soft carbon materials after crushing and screening will be separated into components with different particle sizes. Some soft carbon materials that are too large or too small will be screened out, which will cause waste of resources.

[0005] Therefore, the problems existing in the prior art need to be further improved and developed. Summary of the Invention

[0006] (I) Object of the Invention: To solve the problems existing in the above-mentioned prior art, the object of the present invention is to provide a purification device for soft carbon materials.

[0007] (II) Technical Solution: To solve the above technical problems, the present technical solution provides a purification device for soft carbon materials, including a crushing furnace, a low-temperature furnace, and a high-temperature furnace arranged from top to bottom. At the top of the crushing furnace, a feeding port is arranged at one end far from the low-temperature furnace. A grinding structure is arranged at one end of the feeding port close to the low-temperature furnace. A sieve plate is arranged at one end of the grinding structure far from the feeding port. A cam vibration structure is arranged at one end of the sieve plate far from the grinding structure and on one side of the crushing furnace. A sieve plate fixing structure is also arranged on the inner wall of the crushing furnace.

[0008] Further, the grinding structure includes a grinding plate, a grinding head, a grinding motor, and a grinding motor box. The grinding plate is located at one end close to the feeding port. The grinding head is located at the center of the grinding plate. The grinding motor is located at one end away from the feeding port and is arranged inside the grinding motor box. The grinding motor box is fixed to the end of the grinding plate away from the feeding port. The grinding motor is connected to the grinding head through a connecting shaft.

[0009] Further, the grinding plate is in an inverted conical shape, has the lowest position at the center, gradually approaches the feeding port away from the center, and has a truncated conical hole at the center. The shape of the grinding head is adapted to the truncated conical hole, and there is a grinding gap between the truncated conical hole and the grinding head.

[0010] Further, the grinding gap gradually narrows in the direction away from the feeding port.

[0011] Further, an adjustment table is provided in the grinding motor box. Adjusting rods, adjusting nuts, and second springs are provided on both sides of the adjustment table close to the inner wall of the grinding motor box. The adjustment table is located below the grinding motor and at one end close to the sieve plate. The adjustment table supports the grinding motor. The second spring is fixed on the bottom plane inside the grinding motor box. The adjusting rod passes through the adjustment table and is inserted into the second spring. The adjusting nut is matched with the threaded section of the adjusting rod.

[0012] Further, sieve holes and mounting holes are provided on the sieve plate.

[0013] Further, the cam vibration structure includes a cam, a cam motor, and a rotating shaft. The cam motor is located on one side of the outer wall of the crushing furnace. The rotating shaft passes through the outer wall of the crushing furnace, is connected to the cam motor at one end, and is connected to the cam at the other end. The cam is located at one end of the sieve plate away from the grinding structure.

[0014] Further, the sieve plate fixing structure includes a nut, a spring, a fixing column, and a convex block. The convex block is fixed on the inner wall of the crushing furnace. The fixing column is fixed at one end of the convex block close to the grinding motor box. A thread is provided at the end of the fixing column away from the sieve plate. The spring is sleeved on the fixing column. The spring contacts the sieve plate at one end away from the grinding motor box.

[0015] Further, a discharge port is also provided on the outer wall of the crushing furnace corresponding to the position between the grinding plate and the sieve plate. The discharge port is located at one end close to the sieve plate, and the height of the end of the discharge port close to the low-temperature furnace is flush with the sieve plate.

[0016] Further, a sealing plate is installed at the discharge port.

[0017] (III) Beneficial effects: The present invention provides a soft carbon material purification device. By setting a screen plate that is easy to disassemble, the particle size of the pulverized coal for purification is distinguished. Moreover, through the adjustment structure provided in the grinding motor box, the grinding gap is adjusted, optimizing the final grinding particle size range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of a soft carbon material purification device of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the crushing furnace;

[0020] Figure 3 is a schematic diagram of the enlarged structure of the partial area A;

[0021] Figure 4 is a schematic diagram of the enlarged structure of the partial area B;

[0022] Figure 5 is a schematic diagram of the screen plate fixing structure of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the present invention in detail with reference to the preferred embodiments. More details are elaborated in the following description for a full understanding of the present invention. However, the present invention is obviously capable of being implemented in many other ways different from this description. Those skilled in the art can make similar generalizations and deductions according to the actual application situation without departing from the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0024] The accompanying drawings are schematic diagrams of the embodiments of the present invention. It should be noted that this accompanying drawing is only for illustration and is not drawn according to the condition of equal proportion, and should not be used to limit the actual protection scope required by the present invention.

[0025] A soft carbon material purification device uses low-ash coal with a low ash content as the raw material, minimizing the influence of the ash content of the raw material. It includes a crushing furnace 1, a low-temperature furnace 2, and a high-temperature furnace 3 arranged from top to bottom, as Figure 1 shown. The crushing furnace 1 performs crushing treatment on the coal raw material to be purified, making the crushed coal raw material reach a powder state. The low-temperature furnace 2 performs low-temperature preheating treatment on the incoming coal raw material in powder state. The high-temperature furnace 3 performs high-temperature purification treatment on the preheated coal raw material entering due to gravity.

[0026] Among them, the crushing furnace 1, the low-temperature furnace 2, and the high-temperature furnace 3 are all cylindrical, and connecting pipes are provided between the crushing furnace 1 and the low-temperature furnace 2, and between the low-temperature furnace 2 and the high-temperature furnace 3, and control valves are provided on the connecting pipes. When the control valve is opened, the internal spaces of the crushing furnace 1 and the low-temperature furnace 2 are communicated, and the internal spaces of the low-temperature furnace 2 and the high-temperature furnace 3 are communicated.

[0027] Specifically, as Figure 2 shown, a feeding port 11 is provided at one end of the top of the crushing furnace 1 away from the low-temperature furnace 2. A grinding structure 12 is provided at one end of the feeding port 11 close to the low-temperature furnace 2. A sieve plate 14 is provided at one end of the grinding structure 12 away from the feeding port 11. A cam vibration structure 15 is provided on one side of the crushing furnace 1 at one end of the sieve plate 14 away from the grinding structure 12. A sieve plate fixing structure 16 is further provided on the inner wall of the crushing furnace 1.

[0028] More specifically, the grinding structure 12 includes a grinding plate 121, a grinding head 122, a grinding motor 124, and a grinding motor box 123. The grinding plate 121 is located at one end close to the feeding port 11. The grinding head 122 is located at the center position of the grinding plate 121. The grinding motor 124 is located at one end away from the feeding port and is arranged inside the grinding motor box 123.

[0029] The grinding plate 121 is inverted conical, has the lowest position at the center, gradually approaches the feeding port 11 away from the center, and has a truncated conical hole at the center. The shape of the grinding head 122 is adapted to the truncated conical hole. And there is a grinding gap between the truncated conical hole and the grinding head 122. The grinding gap gradually narrows in the direction away from the feeding port 11, so that the coal raw materials falling on the grinding plate 121 are continuously ground and crushed in the grinding gap.

[0030] The grinding motor box 123 is fixed at one end of the grinding plate 121 away from the feeding port 11 for accommodating the grinding motor 124. The grinding motor 124 is connected to the grinding head 122 through a connecting shaft, so that the grinding motor 124 drives the grinding head 122 to rotate in the truncated conical hole.

[0031] As Figure 4As shown in the figure, an adjustment table 1231 is provided in the grinding motor box 123. Adjusting rods 1232, adjusting nuts 1233, and second springs 1234 are provided on both sides of the adjustment table 1231 close to the inner wall of the grinding motor box 123. The adjustment table 1231 is located below the grinding motor 124 and at one end close to the sieve plate 14. The adjustment table 1231 supports the grinding motor 124. The second spring 1234 is fixed on the bottom plane inside the grinding motor box 123. The adjusting rod 1232 passes through the adjustment table 1231 and is inserted into the second spring 1234. The adjusting nut 1233 cooperates with the threaded section of the adjusting rod 1232, so that the height of the adjustment table 1231 can be adjusted by screwing the adjusting nut 1233. Thus, the depth of the grinding head 122 entering the truncated conical hole is adjusted, and further the grinding gap is adjusted, so that pulverized coal with different particle sizes can be obtained inside the crushing furnace 1 after grinding.

[0032] Sieve holes 141 are provided on the sieve plate 14, and the sieve holes 141 allow the coal powder that meets the particle size requirements after grinding to enter the bottom of the crushing furnace 1. Mounting holes are also provided on the sieve plate 14, so that the sieve plate 14 can be mounted inside the crushing furnace 1.

[0033] The cam vibration structure includes a cam 151, a cam motor 152, and a rotating shaft. As Figure 3 shown, the cam motor 152 is located on one side of the outer wall of the crushing furnace 1. The rotating shaft passes through the outer wall of the crushing furnace 1, is connected to the cam motor 152 at one end, and is connected to the cam 151 at the other end. The cam 151 is located at one end of the sieve plate 14 away from the grinding structure 12.

[0034] The sieve plate fixing structure 16 includes a nut 161, a spring 162, a fixing column 163, and a convex block 164. As Figure 5 shown, the convex block 164 is fixed on the inner wall of the crushing furnace 1, and the number of the convex blocks 164 is set in pairs to stably support the sieve plate 14. In the present invention, two convex blocks 164 are preferably provided. The fixing column 163 is fixed at one end of the convex block 164 close to the grinding motor box 123. It should be noted that the number of the fixing columns 163 is the same as the number of the convex blocks 164. During installation, first pass the fixing column 163 through the mounting hole on the sieve plate 14, then sleeved the spring 162 on the fixing column 163 so that the spring 162 contacts the sieve plate 14 at one end away from the grinding motor box 123, and finally screw the nut 161 onto the top of the fixing column 163.

[0035] Specifically, a thread is provided at one end of the fixed column 163 away from the sieve plate 14, so as to be adapted to the nut 161.

[0036] More specifically, a discharge port 13 is further provided on the outer wall of the crushing furnace 1 corresponding to the position between the grinding plate 121 and the sieve plate 14. The discharge port 13 is located at one end close to the sieve plate 14, and the height of one end of the discharge port 13 close to the low-temperature furnace 2 is flush with the sieve plate 14. The discharge port 13 enables the sieve plate 14 to be smoothly installed inside the crushing furnace 1, and after the screening is completed, the pulverized coal that does not meet the particle size is removed from the inside of the crushing furnace 1.

[0037] A sealing plate is further installed on the discharge port 13. The sealing plate is closed during the grinding and screening of the crushing furnace 1, and is opened when installing the sieve plate 14, so as to facilitate the installation or replacement of the sieve plate 14; it is opened after the screening is completed, so as to facilitate the timely removal of the pulverized coal that does not meet the particle size.

[0038] The low-temperature furnace 2 performs an electric heating and low-temperature preheating treatment on the coal raw material entering the interior. The pulverized coal that meets the particle size requirements is heated to 500°C - 800°C in the low-temperature furnace. The heating of the low-temperature furnace can remove the moisture and volatile substances in the pulverized coal. At the same time, the organic substances in the coal material begin to decompose, generating small-molecule volatile compounds. The release of these volatile compounds leads to a reduction in solid substances and forms a preliminary carbon structure. Moreover, when the coal material is heated to 500°C - 800°C, the coal material enters the carbonization stage. In this stage, the microstructure of the solid carbon gradually becomes more ordered, forming a more stable carbon structure.

[0039] The high-temperature furnace 3 performs a high-temperature electric heating treatment on the pulverized coal entering the interior. The coal material is heated to 800°C - 1200°C, and the coal material begins to transform into a graphite structure. In this stage, the carbon atoms begin to rearrange to form graphite microcrystals with a layered structure. As the heating time prolongs, in this stage, the graphitization degree of the coal material is significantly improved, forming graphite with a highly ordered layered structure. The graphitized coal material is discharged through the discharge port.

[0040] The present invention provides a soft carbon material purification device. By setting a sieve plate that is easy to disassemble, the particle size of the pulverized coal for purification is distinguished. Also, through the adjustment structure provided in the grinding motor box, the grinding gap is adjusted, optimizing the final grinding particle size range.

[0041] The above content is an illustration of the preferred embodiments of the present invention, which can help those skilled in the art better understand the technical solutions of the present invention. However, these embodiments are merely examples and it cannot be determined that the specific implementation of the present invention is limited to the description of these embodiments. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions and transformations can still be made, which should all be regarded as falling within the protection scope of the present invention.

Claims

1. A purification device for soft carbon materials, comprising a crushing furnace, a low-temperature furnace, and a high-temperature furnace arranged from top to bottom, characterized in that, At the top of the crushing furnace, a feed inlet is arranged at one end far from the low-temperature furnace. A grinding structure is arranged at one end of the feed inlet close to the low-temperature furnace. A sieve plate is arranged at one end of the grinding structure far from the feed inlet. A cam vibration structure is arranged at one end of the sieve plate far from the grinding structure and on one side of the crushing furnace. A sieve plate fixing structure is also arranged on the inner wall of the crushing furnace.

2. The purification device for soft carbon materials according to claim 1, wherein The grinding structure includes a grinding plate, a grinding head, a grinding motor, and a grinding motor box. The grinding plate is located at one end close to the feed inlet. The grinding head is located at the center of the grinding plate. The grinding motor is located at one end far from the feed inlet and is arranged inside the grinding motor box. The grinding motor box is fixed at one end of the grinding plate far from the feed inlet. The grinding motor is connected to the grinding head through a connecting shaft.

3. The purification device for soft carbon materials according to claim 2, characterized in that, The grinding plate is in an inverted conical shape, has the lowest position at the center, gradually approaches the feed inlet at a position far from the center, and has a truncated conical hole at the center. The shape of the grinding head is adapted to the truncated conical hole, and there is a grinding gap between the truncated conical hole and the grinding head.

4. The purification device for a soft carbon material according to claim 3, wherein, The grinding gap gradually becomes narrower in the direction far from the feed inlet.

5. The purification device for soft carbon materials according to claim 2, characterized in that, An adjusting table is arranged in the grinding motor box. Adjusting rods, adjusting nuts, and second springs are arranged on both sides of the adjusting table close to the inner wall of the grinding motor box. The adjusting table is located below the grinding motor and at one end close to the sieve plate. The adjusting table supports the grinding motor. The second spring is fixed on the bottom plane inside the grinding motor box. The adjusting rod passes through the adjusting table and is inserted into the second spring. The adjusting nut is matched with the threaded section of the adjusting rod.

6. The purification device for soft carbon materials according to claim 1, characterized in that, Sieve holes and mounting holes are arranged on the sieve plate.

7. The purification device for soft carbon materials according to claim 1, characterized in that, The cam vibration structure includes a cam, a cam motor, and a rotating shaft. The cam motor is located on one side of the outer wall of the crushing furnace. The rotating shaft passes through the outer wall of the crushing furnace, is connected to the cam motor at one end, and is connected to the cam at the other end. The cam is located at one end of the sieve plate far from the grinding structure.

8. The purification device for soft carbon materials according to claim 1, characterized in that, The sieve plate fixing structure includes a nut, a spring, a fixing column, and a convex block. The convex block is fixed on the inner wall of the crushing furnace. The fixing column is fixed at one end of the convex block close to the grinding motor box. A thread is arranged at one end of the fixing column far from the sieve plate. The spring is sleeved on the fixing column. The spring contacts the sieve plate at one end far from the grinding motor box.

9. The purification device for soft carbon materials according to claim 2, wherein An outlet is also arranged on the outer wall of the crushing furnace corresponding to the position between the grinding plate and the sieve plate. The outlet is located at one end close to the sieve plate, and the height of the end of the outlet close to the low-temperature furnace is flush with the sieve plate.

10. The purification device for soft carbon materials according to claim 9, wherein, A sealing plate is installed on the outlet.

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