Separating device for fine screening of silicon carbide powder

Abstract

The utility model relates to the field of silicon carbide, and discloses a separating device for fine screening of silicon carbide powder, which comprises a support column I, a support column II and a collecting box, the top of the support column I is fixedly connected with a motor I, the output end of the motor I is fixedly connected with an auger, and the outer wall of the auger is rotatably connected with a cylinder; a feeding pipe is arranged at the top of the cylinder, a rotating column is fixedly connected to one side of the outer wall of the auger, fixing strips are fixedly connected to the two sides of the outer wall of the rotating column, a filter cartridge is fixedly connected to one side of the outer wall of each fixing strip, an arc-shaped shell is fixedly connected to one end of the cylinder, and an outer shell is fixedly connected to the top of a second supporting column. According to the separation device for fine screening of the silicon carbide powder, the outer wall of the filter cartridge and the inner wall of the outer shell are cleaned, the problem that in the prior art, screen holes of the filter cartridge in a silicon carbide powder screening mechanism are blocked when fine powder is treated is solved, and the service life of the separation device for fine screening of the silicon carbide powder is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of silicon carbide, in particular to a separation device for fine screening of silicon carbide powder. Background Art

[0002] Silicon carbide powder is an important industrial raw material, widely used in fields such as ceramics, electronic materials, coatings, and chemical engineering. The main purpose of fine screening silicon carbide powder is to control the particle size distribution and particle size to ensure the uniformity and stability of the product. Fine screening can remove impurities and irregular particles, improve the purity and operability of the powder, thereby enhancing its accuracy and efficiency in the manufacturing process.

[0003] Traditional separation devices for fine screening of silicon carbide powder usually use a drum sieve. Through the rotational movement of the drum, the powder is gradually classified on the inner drum. Larger particles fall after rotating on the right - hand sieve mesh of the drum, while smaller particles fall through the sieve holes earlier into the lower part, thus achieving fine screening of silicon carbide powder.

[0004] However, the drum sieve faces problems such as sieve hole blockage and easy wear of the sieve mesh when dealing with fine powder. It requires frequent maintenance and replacement of the sieve mesh. At the same time, for powders with strong adhesiveness, there will be powder residue on the inner wall of the drum sieve, thus affecting the production quality of the product. Therefore, a separation device for fine screening of silicon carbide powder is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a separation device for fine screening of silicon carbide powder, aiming to improve the problem of sieve hole blockage faced by the filter cylinder in the silicon carbide powder screening mechanism in the prior art when dealing with fine powder.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A separation device for fine screening of silicon carbide powder, including a first support column, a second support column and a collection box. A first motor is fixedly connected to the top of the first support column. A screw conveyor is fixedly connected to the output end of the first motor. A cylinder is rotatably connected to the outer wall of the screw conveyor. A feed pipe is arranged at the top of the cylinder. A rotating column is fixedly connected to one side of the outer wall of the screw conveyor. Fixed strips are fixedly connected to both sides of the outer wall of the rotating column. A filter cylinder is fixedly connected to one side of the outer wall of the fixed strip. An arc-shaped shell is fixedly connected to one end of the cylinder. A housing is fixedly connected to the top of the second support column. The top of the housing is fixedly connected to the bottom of the arc-shaped shell. A fixing plate is fixedly connected to one side of the inner wall of the arc-shaped shell. A second motor is fixedly connected to one side of the outer wall of the fixing plate. A disc is fixedly connected to the output end of the second motor. A limiting column is fixedly connected to one side of the outer wall of the disc. A sector gear is slidably connected to the outer wall of the limiting column. A fixed column is fixedly connected to one side of the outer wall of the fixing plate. The inner part of the sector gear is rotatably connected to the outer wall of the fixed column. A fixed ring is fixedly connected to one side of the outer wall of the fixing plate. A tooth column is slidably connected to the inner wall of the fixed ring. The top of the tooth column meshes with the bottom of the sector gear. A cleaning brush is fixedly connected to the bottom of the tooth column. The inner wall of the cleaning brush is slidably connected to the outer wall of the filter cylinder. An outlet assembly is arranged at the bottom of the arc-shaped shell. The outlet assembly is used to guide the screened silicon carbide powder for centralized collection;

[0008] As a further description of the above technical solution:

[0009] The outlet assembly includes a coarse material outlet pipe and a fine material outlet pipe. The top of the coarse material outlet pipe is fixedly connected to the bottom of the housing. The top of the fine material outlet pipe is fixedly connected to the bottom of the housing;

[0010] As a further description of the above technical solution:

[0011] A chute body is fixedly connected to one side of the inner wall of the collection box. A sliding plate is slidably connected to the inner wall of the chute body;

[0012] As a further description of the above technical solution:

[0013] A cylinder is fixedly connected to one side of the inner wall of the collection box. A push plate is fixedly connected to the output end of the cylinder;

[0014] As a further description of the above technical solution:

[0015] One side of the outer wall of the push plate is fixedly connected to one side of the outer wall of the sliding plate;

[0016] As a further description of the above technical solution:

[0017] One side of the outer wall of the sliding plate is rotatably connected to a first connecting rod. The other side of the outer wall of the sliding plate is rotatably connected to a second connecting rod;

[0018] As a further description of the above technical solution:

[0019] A top cover is rotatably connected to the top of the first connecting rod;

[0020] As a further description of the above technical solution:

[0021] One side of the inner wall of the collection box is fixedly connected with an arc-shaped block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, starting the second motor drives the disc to rotate, further drives the sector gear to swing left and right around the fixed column, and finally drives the cleaning brush to slide on the outer wall of the filter cylinder, realizing the cleaning of the outer wall of the filter cylinder and the inner wall of the housing, solving the problem of screen hole blockage faced by the filter cylinder in the existing silicon carbide powder screening mechanism when dealing with fine powder, and improving the service life of the separation device for fine screening of silicon carbide powder.

[0024] 2. In the utility model, starting the cylinder to extend drives the push plate to move to the right, thereby driving the top cover to slide to the right. When the right side of the top cover touches the outer wall of the arc-shaped block, the top cover moves upward, realizing the sealing of the collection box, solving the problem of dust diffusion of the silicon carbide powder after fine screening, and improving the convenience of device storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional schematic diagram of the separation device for fine screening of silicon carbide powder proposed by the utility model;

[0026] Figure 2 is a schematic structural diagram of the cross-section of the arc-shaped shell of the separation device for fine screening of silicon carbide powder proposed by the utility model;

[0027] Figure 3 is a schematic structural diagram of the cross-section of the collection box of the separation device for fine screening of silicon carbide powder proposed by the utility model;

[0028] Figure 4 is Figure 2 the enlarged view of A in

[0029] Figure 5 is Figure 3 the enlarged view of B in

[0030] Legend:

[0031] 1. First support column; 2. First motor; 3. Feed pipe; 4. Arc-shaped shell; 5. Cylinder; 6. Outer shell; 7. Second support column; 8. Coarse material discharge pipe; 9. Fine material discharge pipe; 10. Screw conveyor; 11. Second motor; 12. Fixed plate; 13. Disc; 14. Fixed column; 15. Sector gear; 16. Limit column; 17. Fixed ring; 18. Tooth column; 19. Cleaning brush; 20. Filter cylinder; 21. Rotating column; 22. Collection box; 23. Cylinder; 24. Pushing plate; 25. Chute body; 26. Slide plate; 27. First connecting rod; 28. Top cover; 29. Second connecting rod; 30. Arc-shaped block; 31. Fixed strip. Detailed implementation manner

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Referring to Figure 2 、 Figure 3 and Figure 4 , an embodiment provided by the present invention: A separation device for fine screening of silicon carbide powder, including a first support column 1, a second support column 7 and a collection box 22. The top of the first support column 1 is fixedly connected to a first motor 2. The output end of the first motor 2 is fixedly connected to a screw conveyor 10. The outer wall of the screw conveyor 10 is rotatably connected to a cylinder 5. The top of the cylinder 5 is provided with a feed pipe 3. One side of the outer wall of the screw conveyor 10 is fixedly connected to a rotating column 21. Both sides of the outer wall of the rotating column 21 are fixedly connected to a fixed strip 31. One side of the outer wall of the fixed strip 31 is fixedly connected to a filter cylinder 20. One end of the cylinder 5 is fixedly connected to an arc-shaped shell 4. The top of the second support column 7 is fixedly connected to an outer shell 6. The top of the outer shell 6 is fixedly connected to the bottom of the arc-shaped shell 4. One side of the inner wall of the arc-shaped shell 4 is fixedly connected to a fixed plate 12. One side of the outer wall of the fixed plate 12 is fixedly connected to a second motor 11. The output end of the second motor 11 is fixedly connected to a disc 13. One side of the outer wall of the disc 13 is fixedly connected to a limit column 16. The outer wall of the limit column 16 is slidably connected to a sector gear 15. One side of the outer wall of the fixed plate 12 is fixedly connected to a fixed column 14. The inner part of the sector gear 15 is rotatably connected to the outer wall of the fixed column 14. One side of the outer wall of the fixed plate 12 is fixedly connected to a fixed ring 17. The inner wall of the fixed ring 17 is slidably connected to a tooth column 18. The top of the tooth column 18 meshes with the bottom of the sector gear 15. The bottom of the tooth column 18 is fixedly connected to a cleaning brush 19. The inner wall of the cleaning brush 19 is slidably connected to the outer wall of the filter cylinder 20. The bottom of the arc-shaped shell 4 is provided with a discharge assembly for guiding the sieved silicon carbide powder for centralized collection;

[0034] Specifically, during the screening and separation of silicon carbide powder, first, the silicon carbide powder to be processed is loaded into the feed pipe 3. The first motor 2 is started, and the auger 10 begins to rotate, guiding the untreated silicon carbide powder into the interior of the filter cylinder 20. The filter cylinder 20 starts to rotate under the drive of the fixing strip 31, thereby filtering the silicon carbide powder. The fine silicon carbide powder after preliminary screening passes through the filter cylinder 20 and enters the space between the filter cylinder 20 and the outer housing 6. Subsequently, the second motor 11 is started to drive the disc 13 to rotate, and then drive the limit post 16 to perform a circular motion. The sliding of the limit post 16 on the inner wall of the sector gear 15 causes the sector gear 15 to swing left and right around the center of the fixed post 14. At the same time, the engagement between the bottom of the sector gear 15 and the top of the tooth post 18 causes the tooth post 18 to slide on the inner wall of the fixed ring 17, and finally drives the cleaning brush 19 to move on the outer wall of the filter cylinder 20. The cleaning brush 19 is designed in a circular ring shape and is covered with bristles on the outside, which is convenient for cleaning the powder on the surface of the filter cylinder 20. At the same time, the outer wall of the cleaning brush 19 contacts the inner wall of the outer housing 6, and also cleans the powder attached to the inner wall of the outer housing 6, improving the screening efficiency and product quality of the silicon carbide powder.

[0035] Refer to Figure 1 , the discharge assembly includes a coarse material discharge pipe 8 and a fine material discharge pipe 9. The top of the coarse material discharge pipe 8 is fixedly connected to the bottom of the outer housing 6, and the top of the fine material discharge pipe 9 is fixedly connected to the bottom of the outer housing 6;

[0036] Specifically, the processed powder passes through the coarse material discharge pipe 8 and the fine material discharge pipe 9 respectively. The device is provided with two collection boxes 22, and the processed powder is collected in the collection boxes 22, realizing the separation and centralized treatment of the silicon carbide powder. By guiding the coarse and fine powder to different collection boxes 22 respectively, the automation of the device is improved.

[0037] Refer to Figure 3 and Figure 5 , one side of the inner wall of the collection box 22 is fixedly connected with a chute body 25, the inner wall of the chute body 25 is slidably connected with a slide plate 26, one side of the inner wall of the collection box 22 is fixedly connected with a cylinder 23, the output end of the cylinder 23 is fixedly connected with a push plate 24, one side of the outer wall of the push plate 24 is fixedly connected to one side of the outer wall of the slide plate 26, one side of the outer wall of the slide plate 26 is rotatably connected with a first connecting rod 27, the other side of the outer wall of the slide plate 26 is rotatably connected with a second connecting rod 29, the top of the first connecting rod 27 is rotatably connected with a top cover 28, and one side of the inner wall of the collection box 22 is fixedly connected with an arc-shaped block 30;

[0038] Specifically, the device is equipped with two collection bins 22 for collecting the processed powder. Once the powder collection is completed, the cylinder 23 is activated. The extension movement of the cylinder 23 pushes the push plate 24 to move to the right, driving the sliding plate 26 to slide to the right on the inner wall of the chute body 25, and further driving the top cover 28 to move to the right. When the right side of the top cover 28 touches the outer wall of the arc-shaped block 30, the top cover 28 is guided to move upward, thus sealing the collection bin 22, making the powder collection process more efficient and precise. The stable movement of the top cover 28 and the reliable sealing of the collection bin 22 ensure the safe storage of the powder in the collection bin 22.

[0039] Working principle: When screening and separating silicon carbide powder, first put the silicon carbide powder to be screened into the feed pipe 3. Activate the first motor 2 to drive the auger 10 to rotate, so as to bring the untreated silicon carbide powder into the inside of the filter cylinder 20. The auger 10 drives the filter cylinder 20 to rotate through the fixing strip 31 to realize the filtration of the silicon carbide powder. The fine silicon carbide powder quickly passes through the filter cylinder 20 to the space between the filter cylinder 20 and the outer casing 6. By activating the second motor 11 to drive the disc 13 to rotate, the limit post 16 is driven to perform a circular motion, and further drive the limit post 16 to slide on the inner wall of the sector gear 15. Since there is a fixed post 14 inside the sector gear 15 fixed on one side of the outer wall of the fixing plate 12, the sector gear 15 swings left and right with the fixed post 14 as the center. At the same time, since the bottom of the sector gear 15 meshes with the top of the tooth post 18, the tooth post 18 is driven to slide on the inner wall of the fixed ring 17, and finally drive the cleaning brush 19 to slide on the outer wall of the filter cylinder 20 to clean the powder on the surface of the filter cylinder 20. At the same time, the outer wall of the cleaning brush 19 contacts the inner wall of the outer casing 6, and also cleans the powder attached to the inner wall of the outer casing 6, so that the processed powder passes through the coarse material discharge pipe 8 and the fine material discharge pipe 9 respectively. The device is provided with two collection bins 22, and the processed powder is collected in the collection bins 22. After the collection is completed, activate the cylinder 23 to perform an extension movement, drive the push plate 24 to move to the right, thus driving the sliding plate 26 to slide to the right on the inner wall of the chute body 25, and further driving the top cover 28 to slide to the right. When the right side of the top cover 28 touches the outer wall of the arc-shaped block 30, the top cover 28 moves upward to complete the sealing of the collection bin 22.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A separation device for fine screening of silicon carbide powder, comprising a support column 1 (1), a support column 2 (7) and a collecting box (22), characterized in that: The top of the support column 1 (1) is fixedly connected to the motor 1 (2), the output end of the motor 1 (2) is fixedly connected to the auger (10), the outer wall of the auger (10) is rotatably connected to the cylinder (5), the top of the cylinder (5) is provided with a feed pipe (3), one side of the outer wall of the auger (10) is fixedly connected to a rotating column (21), both sides of the outer wall of the rotating column (21) are fixedly connected to fixing bars (31), one side of the outer wall of the fixing bar (31) is fixedly connected to a filter cartridge (20), one end of the cylinder (5) is fixedly connected to an arc-shaped shell (4), the top of the support column 2 (7) is fixedly connected to an outer shell (6), the top of the outer shell (6) is fixedly connected to the bottom of the arc-shaped shell (4), one side of the inner wall of the arc-shaped shell (4) is fixedly connected to a fixing plate (12), one side of the outer wall of the fixing plate (12) is fixedly connected to the motor 2 (11), the motor 2 (1 1) A disc (13) is fixedly connected to the output end, a limiting column (16) is fixedly connected to one side of the outer wall of the disc (13), a sector gear (15) is slidably connected to the outer wall of the limiting column (16), a fixing column (14) is fixedly connected to one side of the outer wall of the fixing plate (12), the sector gear (15) is internally rotatably connected to the outer wall of the fixing column (14), a fixing ring (17) is fixedly connected to one side of the outer wall of the fixing plate (12), a tooth column (18) is slidably connected to the inner wall of the fixing ring (17), the top of the tooth column (18) is meshed with the bottom of the sector gear (15), a cleaning brush (19) is fixedly connected to the bottom of the tooth column (18), the inner wall of the cleaning brush (19) is slidably connected to the outer wall of the filter cartridge (20), and a discharging assembly is arranged at the bottom of the arc shell (4), the discharging assembly is used to guide the screened silicon carbide powder for centralized collection.

2. The separation device for fine screening of silicon carbide powder according to claim 1, characterized in that: The discharge assembly comprises a coarse material discharge pipe (8) and a fine material discharge pipe (9), the top of the coarse material discharge pipe (8) being fixedly connected to the bottom of the outer shell (6), and the top of the fine material discharge pipe (9) being fixedly connected to the bottom of the outer shell (6).

3. The separation device for fine screening of silicon carbide powder according to claim 1, characterized in that: A chute body (25) is fixedly connected to one side of the inner wall of the collection box (22), and a slide plate (26) is slidably connected to the inner wall of the chute body (25).

4. The separation device for fine screening of silicon carbide powder according to claim 1, characterized in that: A cylinder (23) is fixedly connected to one side of the inner wall of the collection box (22), and a push plate (24) is fixedly connected to the output end of the cylinder (23).

5. The separation device for fine screening of silicon carbide powder according to claim 4, characterized in that: One side of the outer wall of the push plate (24) is fixedly connected to one side of the outer wall of the slide plate (26).

6. The separation device for fine screening of silicon carbide powder according to claim 5, characterized in that: One side of the outer wall of the slide plate (26) is rotatably connected to a connecting rod 1 (27), and the other side of the outer wall of the slide plate (26) is rotatably connected to a connecting rod 2 (29).

7. The separation device for fine screening of silicon carbide powder according to claim 6, characterized in that: The top of the connecting rod 1 (27) is rotatably connected with a top cover (28).

8. The separation device for fine screening of silicon carbide powder according to claim 1, characterized in that: An arc-shaped block (30) is fixedly connected to one side of the inner wall of the collection box (22).

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