Carbon powder grinding device

Abstract

The utility model relates to the technical field of carbon powder production, in particular to a carbon powder grinding device which comprises a grinding cylinder body and a plurality of wind pressure air pipes arranged on the side wall of the grinding cylinder body in a penetrating mode, carbon powder pipes are further arranged on the side wall of the grinding cylinder body in a penetrating mode, and a screening device is arranged at the top of the grinding cylinder body. A filtering structure penetrating through the top of the grinding cylinder and extending into the grinding cylinder is arranged at the bottom of the screening device, the filtering structure comprises an output pipe penetrating through the top of the grinding cylinder and communicating with the screening device and a filtering cover arranged at the bottom end of the output pipe and extending into the grinding cylinder, and a lifting ring is slidably arranged on the outer wall of the filtering cover; airflow entering the wind pressure air pipe pushes the lifting ring upwards, and the lifting ring falls down to scrape the outer wall of the filter cover after grinding is finished.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon powder production, in particular to a carbon powder grinding device. Background Art

[0002] The carbon powder grinding device accelerates compressed air through a Laval nozzle into a supersonic airflow, which is then injected into the crushing zone to fluidize the material (the airflow expands into a fluidized bed, causing suspension and boiling, and collisions). Therefore, each particle has the same motion state. In the crushing zone, the accelerated particles collide and shatter at the intersection of the nozzles, thereby destroying larger particles in the raw material and obtaining small particles that meet the required requirements. The finished particles are then discharged outward through a negative pressure fan to produce an exhaust effect, resulting in a high grinding speed, high product uniformity, and simple operation.

[0003] Although the above-mentioned existing technology can solve the corresponding technical problems, it still has certain defects: after the existing carbon powder grinding device sends the carbon powder into the flushing cylinder for flushing, small particles of carbon powder that meet the size will float up and enter the separation structure, while large particles of carbon powder will remain on the filter cover. After long-term use, large particles of carbon powder are easily accumulated on the filter cover, thereby reducing its permeability. The filter cover needs to be disassembled for cleaning or replacement every once in a while, which takes up the time for carbon powder grinding, shortens the maintenance cycle, and affects the carbon powder grinding efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a carbon powder grinding device with good carbon powder passing performance and long maintenance period in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a carbon powder grinding device, comprising a grinding cylinder and several wind pressure air pipes penetrating the side wall of the grinding cylinder, the side wall of the grinding cylinder is also penetrated by a carbon powder tube, the top of the grinding cylinder is provided with a sifter, the bottom of the sifter is provided with a filtering structure penetrating the top of the grinding cylinder and extending into the grinding cylinder, the filtering structure comprises an output pipe penetrating the top of the grinding cylinder and connected with the sifter, and a filter cover arranged at the bottom end of the output pipe and extending into the grinding cylinder, the outer wall of the filter cover is slidingly provided with a lifting ring, the airflow entering from the wind pressure air pipe pushes up the lifting ring, and causes it to fall and scrape the outer wall of the filter cover after the grinding is completed.

[0006] A further improvement is that a negative pressure tube is also provided on the sifter.

[0007] A further improvement is that a curved filter plate is provided at the bottom of the filter cover.

[0008] A further improvement is that a blocking block is provided at the bottom of the filter cover.

[0009] A further improvement is that the lifting ring includes a collar slidably arranged on the outer wall of the filter cover and a lower shovel ring arranged at the bottom of the collar, and the side wall of the collar is provided with an arc-shaped wind plate.

[0010] A further improvement is that the cross section of the lower shovel ring is triangular and the hypotenuse is arc-shaped.

[0011] A further improvement is that an upper shovel ring is provided on the top of the collar.

[0012] A further improvement is that a rolling ball is further provided on the inner wall of the collar.

[0013] A further improvement is that the cross section of the upper shovel ring is triangular and the hypotenuse is arc-shaped.

[0014] After adopting the above technical solution, the beneficial effect of the utility model is as follows: during use, the high-pressure airflow of grinding can be used to push up the lifting ring. After the grinding is completed, the air supply is stopped, and the lifting ring can be made to fall down by gravity, and the lower shovel ring is used to fit the surface of the filter cover to perform a shoveling action, thereby scraping off and cleaning the attached large particles of carbon powder. After each grinding, the filter cover can be automatically cleaned through the lifting ring, thereby maintaining the passability of the filter cover and greatly extending the replacement and maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a schematic structural diagram of a front cross-section of the grinding device of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the front cross section of the filter structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the front cross section of the lifting ring of the utility model. DETAILED DESCRIPTION

[0019] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0020] See Figure 1-3As shown, the technical solution adopted in this specific embodiment is: a carbon powder grinding device, including a grinding cylinder 1 and a plurality of air pressure pipes 2 penetrating the side wall of the grinding cylinder 1, the side wall of the grinding cylinder 1 is also penetrated by a carbon powder pipe 3, the top of the grinding cylinder 1 is provided with a sifter 5, the bottom of the sifter 5 is provided with a filter structure 4 that penetrates the top of the grinding cylinder 1 and extends into the grinding cylinder 1, the filter structure 4 includes an output pipe 43 that penetrates the top of the grinding cylinder 1 and is connected to the sifter 5, and a filter 43 that is provided at the bottom of the output pipe 43 and extends into the The filter cover 41 in the grinding cylinder 1 has a lifting ring 45 slidingly provided on the outer wall of the filter cover 41. The airflow entering the wind pressure air pipe 2 pushes up the lifting ring 45. The lifting ring 45 includes a sleeve 451 slidingly provided on the outer wall of the filter cover 41 and a lower shovel ring 452 provided at the bottom of the sleeve 451. The side wall of the sleeve 451 is provided with an arc-shaped wind plate 453, which is used to fall and scrape the outer wall of the filter cover 41 after the grinding is completed. When in use, the carbon powder raw material is fed into the grinding cylinder 1 through the carbon powder tube 3, and is compressed by the wind pressure air pipe 2 through the external high-pressure gas device. The carbon powder is then crushed into the grinding cylinder 1, and the high-speed air flow is generated in the grinding cylinder 1, which drives the carbon powder raw materials to move and collide with each other, and collide with the inner wall of the grinding cylinder 1. After a period of time, the carbon powder raw materials can be broken and crushed to meet the required coarseness and pass through the filter cover 41 of the filter structure 4, and then enter the sifter 5 through the output pipe 43 for screening and output of the finished carbon powder. After the high-pressure air is introduced into the grinding cylinder 1, the air flow will push the lifting ring 45 upward, thereby causing the wind plate 453 of the lifting ring 45 to be affected. The gas pushes and generates an upward thrust, thereby driving the collar 451 to move upward. After the grinding is completed, the air pressure pipe 2 no longer introduces high-pressure air. At this time, the collar 451 can be made to fall downward along the outer wall of the filter cover 41 by gravity, and the lower shovel ring 452 can be made to fall synchronously and fit the surface of the filter cover 41 to perform a shoveling action, thereby shoveling and cleaning the attached large particles of carbon powder. Furthermore, after each grinding, the filter cover 41 can be automatically cleaned through the lifting ring 45, thereby maintaining the passability of the filter cover 41 and significantly extending the replacement and maintenance cycle;

[0021] The sifter 5 is also provided with a negative pressure pipe 6, which is conducive to drawing the carbon powder screened by the sifter 5 through the negative pressure block 6;

[0022] The bottom of the filter cover 41 is provided with an arc-shaped filter plate 42, which is conducive to allowing the attachments at the bottom of the filter cover 41 to move along the arc-shaped filter plate 42 and accumulate at its edge, further ensuring the passability of the filter cover 41;

[0023] The bottom of the filter cover 41 is provided with a blocking block 44, which is helpful to limit the excessive downward movement of the lifting ring 45;

[0024] The cross section of the lower shovel ring 452 is triangular with an arc-shaped hypotenuse, which is conducive to improving the shoveling effect and guiding the shoveled attachments so that they are not easily attached and accumulated on the lower shovel ring 452;

[0025] An upper shovel ring 455 is provided on the top of the collar 451, which is conducive to cleaning the filter cover 41 upward when the collar 451 rises, further maintaining the passability of the filter cover 41;

[0026] The inner wall of the collar 451 is also provided with a rolling ball 454, which helps to reduce the friction resistance when the collar 451 falls;

[0027] The cross section of the upper shovel ring 455 is triangular and the beveled side is arc-shaped, which is beneficial to improving the shoveling effect and guiding the shoveled attachments so that they are not easily attached and accumulated on the upper shovel ring 455.

[0028] The working principle of the present invention is as follows: when the present invention is used, the carbon powder raw material is fed into the grinding cylinder 1 through the carbon powder tube 3, and is pressed into the grinding cylinder 1 through the wind pressure air pipe 2 by an external high-pressure gas device, thereby generating a high-speed air flow in the grinding cylinder 1 and driving the carbon powder raw material to move and collide with each other, and at the same time collide with the inner wall of the grinding cylinder 1. After a period of time, the carbon powder raw material can be broken and crushed to a coarseness that meets the requirements and passes through the filter cover 41 of the filtering structure 4, and then enters the sifter 5 through the output pipe 43 for screening and then the finished carbon powder is output. After the high-pressure air is introduced into the grinding cylinder 1, The airflow will push the lifting ring 45 upward, thereby causing the wind plate 453 of the lifting ring 45 to be pushed by the gas and generate an upward thrust, thereby driving the ring 451 to move upward. After the grinding is completed, the wind pressure air pipe 2 no longer introduces high-pressure air. At this time, the ring 451 can be made to fall downward along the outer wall of the filter cover 41 by gravity, and the lower shovel ring 452 can be made to fall synchronously and fit the surface of the filter cover 41 to perform a shoveling action, thereby shoveling and cleaning the attached large particles of carbon powder, and then the filter cover 41 can be automatically cleaned through the lifting ring 45 after each grinding, thereby maintaining the passability of the filter cover 41 and greatly extending the replacement and maintenance cycle.

[0029] This utility model protects the product's structure; the component models are not the subject of this utility model's protection and are generally known technology. Any commercially available component that can achieve the aforementioned functions of this utility model can be used as an alternative. Therefore, component models and other parameters are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the components.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements shall fall within the scope of the present invention as claimed. The scope of protection claimed in the present invention shall be defined by the appended claims and their equivalents. Any details not described in the present invention are well known to those skilled in the art.

Claims

1. A carbon powder grinding device, comprising a grinding cylinder (1) and a plurality of air pressure pipes (2) penetrating the side wall of the grinding cylinder (1), wherein the side wall of the grinding cylinder (1) is further penetrated by a carbon powder pipe (3), a sifter (5) is provided at the top of the grinding cylinder (1), and a filter structure (4) is provided at the bottom of the sifter (5) penetrating the top of the grinding cylinder (1) and extending into the grinding cylinder (1), characterized in that: The filtering structure (4) comprises an output pipe (43) penetrating the top of the grinding cylinder (1) and communicating with the screen (5), and a filter cover (41) arranged at the bottom end of the output pipe (43) and extending into the grinding cylinder (1). The outer wall of the filter cover (41) is provided with a lifting ring (45) for sliding. The airflow entering from the air pressure pipe (2) pushes up the lifting ring (45), and after grinding is completed, it causes it to fall and scrape the outer wall of the filter cover (41).

2. A carbon powder grinding device according to claim 1, characterized in that: The sifter (5) is also provided with a negative pressure pipe (6).

3. The carbon powder grinding device according to claim 1, characterized in that: An arc-shaped filter plate (42) is provided at the bottom of the filter cover (41).

4. A carbon powder grinding device according to claim 1, characterized in that: A blocking block (44) is provided at the bottom of the filter cover (41).

5. The carbon powder grinding device according to claim 1, characterized in that: The lifting ring (45) comprises a collar (451) slidably arranged on the outer wall of the filter cover (41) and a lower shovel ring (452) arranged at the bottom of the collar (451); a side wall of the collar (451) is provided with an arc-shaped wind plate (453).

6. A carbon powder grinding device according to claim 5, characterized in that: The cross section of the lower shovel ring (452) is triangular and the hypotenuse is arc-shaped.

7. The carbon powder grinding device according to claim 5, characterized in that: An upper shovel ring (455) is provided on the top of the collar (451).

8. The carbon powder grinding device according to claim 5, characterized in that: The inner wall of the collar (451) is further provided with a rolling ball (454).

9. The carbon powder grinding device according to claim 7, characterized in that: The cross section of the upper shovel ring (455) is triangular and the hypotenuse is arc-shaped.

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