Pneumatic silicon carbide micro-powder mixing device

Abstract

The invention provides a pneumatic mixing device for silicon carbide micro powder, and relates to the technical field of silicon carbide micro powder processing. The pneumatic silicon carbide micro-powder mixing device comprises a mounting table plate, and the upper surface of the mounting table plate is fixedly connected with a fixed base. According to the feeding device, the electromagnet is powered off, so that the permanent magnet and the electromagnet are not magnetically attracted together any more, at the moment, under the action of the reset spring, the linkage push-pull rod drives the movable push plate to move, the feeding space in the arc-shaped mounting box body is compressed, and meanwhile the air compressor is started; an air compressor feeds pressurized air into the arc-shaped mounting box body through a third connecting pipe, at the moment, raw materials and air enter a fourth connecting pipe together, enter a spiral conveying pipe through a fifth connecting pipe and are conveyed and mixed in the spiral conveying pipe, the raw materials are conveyed in a pneumatic mode, and the conveying efficiency is improved. The raw materials have good fluidity, the mixing effect of the raw materials is effectively guaranteed, and the production quality of the silicon carbide micro powder is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of silicon carbide micropowder processing, and particularly to a pneumatic mixing device for silicon carbide micropowder. Background Art

[0002] Silicon carbide micropowder refers to micron-sized silicon carbide powder that is ultrafinely pulverized and classified using JZFZ equipment. The silicon carbide micropowder is mainly 1200# and 1500#. Since the silicon carbide micropowder is mainly used in the abrasive industry, there are special requirements for the classification of the micropowder, and no large particles can appear in the micropowder. Therefore, in order to meet the international and domestic product requirements, high-precision classification is generally carried out using JZF classification equipment. The domestic silicon carbide micropowder is mainly black silicon carbide micropowder and green silicon carbide micropowder.

[0003] During the production and processing of silicon carbide micropowder, it is necessary to mix the raw materials for preparing silicon carbide. Some mixing devices use mechanical mixing methods for stirring and mixing. Since there are easily dead corners in stirring and mixing, this method cannot fully mix the materials in the mixing cylinder during use, and it is also impossible to stir and mix the materials at the bottom of the mixing cylinder, resulting in the problem that some materials cannot be mixed, affecting the material mixing quality in the entire mixing device, and thus affecting the quality of the prepared silicon carbide micropowder. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a pneumatic mixing device for silicon carbide micropowder, which solves the problems in the prior art that there are easily dead corners in stirring and mixing, so this method cannot fully mix the materials in the mixing cylinder during use, and it is also impossible to stir and mix the materials at the bottom of the mixing cylinder, resulting in the problem that some materials cannot be mixed, affecting the material mixing quality in the entire mixing device, and thus affecting the quality of the prepared silicon carbide micropowder.

[0005] (II) Technical Solutions To achieve the above object, the present invention is realized by the following technical solutions: A pneumatic mixing device for silicon carbide micropowder, including a mounting table board, on the upper surface of the mounting table board is fixedly connected with a fixed base, on the top of the fixed base is fixedly connected with a large hollow disc, on the top of the large hollow disc is fixedly connected with a first connecting pipe, on the top of the first connecting pipe is fixedly connected with a small hollow disc, on the top of the small hollow disc is fixedly connected with a storage hopper, the back of the large hollow disc is rotationally connected through a first rotating shaft, on the upper surface of the mounting table board is installed a driving mechanism for driving the first rotating shaft to rotate, one end of the first rotating shaft extends into the interior of the large hollow disc and is fixedly connected with a rotating disc body, the back of the small hollow disc is rotationally connected through a third rotating shaft, one end of the third rotating shaft extends into the interior of the small hollow disc and is fixedly connected with a guiding disc, on the outer surface of the guiding disc is provided with a feeding opening, between the first rotating shaft and the third rotating shaft is provided a linkage assembly, inside the large hollow disc is fixedly connected with an arc-shaped mounting box body, one end of the arc-shaped mounting box body is fixedly connected with a second connecting pipe, the other end of the second connecting pipe is fixedly connected with the bottom end of the first connecting pipe, between the rotating disc body and the arc-shaped mounting box body is provided a pushing assembly, on the outer surface of the arc-shaped mounting box body is fixedly connected with a fourth connecting pipe, and the end of the fourth connecting pipe is connected with a collecting box through a mixing pipeline.

[0006] Preferably, the driving mechanism includes a fixed vertical plate fixedly connected to the upper surface of the mounting table board, on the side wall of the fixed vertical plate is rotationally connected with a second rotating shaft, the end of the second rotating shaft away from the fixed vertical plate is fixedly connected with a permanent magnet, one end of the first rotating shaft away from the rotating disc body is fixedly connected with an electromagnet, and the permanent magnet and the electromagnet are magnetically coupled. On the side wall of the fixed vertical plate is fixedly connected with a servo motor, the output shaft of the servo motor is fixedly connected with a first rotating gear, and on the outer surface of the second rotating shaft is fixedly connected with a second rotating gear, and the first rotating gear and the second rotating gear are meshed and connected.

[0007] Preferably, the linkage assembly includes a first pulley fixedly connected to the outer surface of the first rotating shaft, the end of the third rotating shaft is fixedly connected with a second pulley, and the first pulley and the second pulley are connected by a belt transmission.

[0008] Preferably, the pushing assembly includes a movable push plate sealingly and slidably arranged inside the arc-shaped mounting box body, a linkage push rod is inserted through one end of the arc-shaped mounting box body away from the second connecting pipe, one end of the linkage push rod is fixedly connected with the rotating disc body, the other end of the linkage push rod is fixedly connected with the movable push plate, a return spring is sleeved on the outer surface of the linkage push rod, one end of the return spring is fixedly connected with the movable push plate, and the other end of the return spring is fixedly connected with the inner wall of the arc-shaped mounting box body.

[0009] Preferably, an air compressor is fixedly connected to the front surface of the large hollow disc. The outlet of the air compressor is fixedly connected to a third connecting pipe, and one end of the third connecting pipe away from the air compressor is fixedly connected to the arc-shaped installation box body.

[0010] Preferably, the mixing pipeline includes a fifth connecting pipe fixedly connected to the end of the fourth connecting pipe. One end of the fifth connecting pipe away from the fourth connecting pipe is fixedly connected to a spiral conveyor pipe. One end of the spiral conveyor pipe away from the fifth connecting pipe is fixedly connected to a sixth connecting pipe. One end of the sixth connecting pipe away from the spiral conveyor pipe is fixedly connected to the collection box body. Installation vertical plates are fixedly connected to the outer surfaces of the fifth connecting pipe and the sixth connecting pipe, and the installation vertical plates are fixedly connected to the upper surface of the installation table board.

[0011] Preferably, an exhaust pipe is fixedly connected to the side wall of the collection box body. A filter screen and a collection drawer are arranged inside the collection box body. The filter screen is located between the sixth connecting pipe and the exhaust pipe, and the collection drawer is located below the sixth connecting pipe.

[0012] Preferably, an air inlet pipe is installed on the outer surface of the large hollow disc. The air inlet pipe is fixedly connected to the arc-shaped installation box body. Check valves are provided on both the fourth connecting pipe and the air inlet pipe, and a valve is installed on the outer surface of the first connecting pipe.

[0013] (III) Beneficial Effects The present invention provides a pneumatic mixing device for silicon carbide micropowder. It has the following beneficial effects: 1. In the present invention, when the electromagnet is powered off, the permanent magnet and the electromagnet are no longer magnetically attracted to each other. At this time, under the action of the return spring, the linkage push rod drives the movable push plate to move, compressing the feeding space inside the arc-shaped installation box body. At the same time, the air compressor is started, and the air compressor sends pressurized air into the arc-shaped installation box body through the third connecting pipe. At this time, the raw materials and air enter the fourth connecting pipe together, enter the spiral conveyor pipe through the fifth connecting pipe, and are transported and mixed inside the spiral conveyor pipe. The raw materials are transported in a pneumatic manner, making the raw materials have good fluidity, effectively ensuring the mixing effect of the raw materials, and improving the production quality of silicon carbide micropowder.

[0014] 2. In the present invention, when the electromagnet is powered off, the linkage push rod drives the rotating disc body to rotate. The rotating disc body drives the first rotating shaft to rotate together. When the first rotating shaft rotates, it drives the third rotating shaft to rotate through the belt, and the third rotating shaft drives the guiding disc to rotate and reset, so that the feeding opening is reset to the position below the storage hopper, and the raw materials re-enter the feeding opening, preparing for the next feeding, realizing small-batch automatic feeding, and further ensuring the mixing effect. Description of the Drawings

[0015] Figure 1 Schematic diagram of the three - dimensional structure of the first perspective of a pneumatic mixing device for silicon carbide micropowder provided by the present invention; Figure 2 Schematic diagram of the three - dimensional structure of the second perspective of a pneumatic mixing device for silicon carbide micropowder provided by the present invention; Figure 3 Schematic diagram of the internal structure of the large hollow disc of a pneumatic mixing device for silicon carbide micropowder provided by the present invention; Figure 4 Schematic diagram of the internal structure of the arc - shaped installation box body of a pneumatic mixing device for silicon carbide micropowder provided by the present invention; Figure 5 Schematic diagram of the internal structure of the collection box body of a pneumatic mixing device for silicon carbide micropowder provided by the present invention; Figure 6 For a pneumatic mixing device for silicon carbide micropowder provided by the present invention Figure 2 Enlarged schematic diagram at position A.

[0016] Among them, 1. Installation table board; 2. Fixed base; 3. Large hollow disc; 4. First connecting pipe; 5. Small hollow disc; 6. Stock hopper; 7. First rotating shaft; 8. Fixed vertical plate; 9. Servo motor; 10. First rotating gear; 11. Second rotating shaft; 12. Second rotating gear; 13. Permanent magnet; 14. Electromagnet; 15. Rotating disc body; 16. Arc - shaped installation box body; 17. Second connecting pipe; 18. Movable push plate; 19. Linkage push - pull rod; 20. Return spring; 21. Third rotating shaft; 22. Guide material disc; 23. Feeding opening; 24. Air compressor; 25. Third connecting pipe; 26. Fourth connecting pipe; 27. Fifth connecting pipe; 28. Screw conveyor pipe; 29. Sixth connecting pipe; 30. Installation vertical plate; 31. Collection box body; 32. Exhaust pipe; 33. Filter screen; 34. Collection drawer; 35. Intake pipe. Detailed implementation manners

[0017] 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.

[0018] Embodiment: As Figures 1-6As shown in the figure, an embodiment of the present invention provides a pneumatic mixing device for silicon carbide micropowder, which includes a mounting table board 1. A fixed base 2 is fixedly connected to the upper surface of the mounting table board 1. A large hollow disc 3 is fixedly connected to the top of the fixed base 2. A first connecting pipe 4 is fixedly connected to the top of the large hollow disc 3. A small hollow disc 5 is fixedly connected to the top of the first connecting pipe 4. The connection between the first connecting pipe 4 and the small hollow disc 5 is through. A storage hopper 6 is fixedly connected to the top of the small hollow disc 5. A first rotating shaft 7 is rotatably connected through the back surface of the large hollow disc 3. A driving mechanism for driving the rotation of the first rotating shaft 7 is installed on the upper surface of the mounting table board 1. The driving mechanism includes a fixed vertical plate 8 fixedly connected to the upper surface of the mounting table board 1. A second rotating shaft 11 is rotatably connected to the side wall of the fixed vertical plate 8. A permanent magnet 13 is fixedly connected to the end of the second rotating shaft 11 away from the fixed vertical plate 8. An electromagnet 14 is fixedly connected to the end of the first rotating shaft 7 away from the rotating disc body 15. The permanent magnet 13 and the electromagnet 14 are magnetically coupled. A servo motor 9 is fixedly connected to the side wall of the fixed vertical plate 8. The output shaft of the servo motor 9 is fixedly connected to a first rotating gear 10. A second rotating gear 12 is fixedly connected to the outer surface of the second rotating shaft 11. The first rotating gear 10 and the second rotating gear 12 are meshed and connected. When the servo motor 9 is started, the output shaft of the servo motor 9 drives the first rotating gear 10 to rotate, so that the second rotating gear 12 drives the second rotating shaft 11 to rotate. Since the permanent magnet 13 and the electromagnet 14 are magnetically attracted together, the second rotating shaft 11 drives the first rotating shaft 7 to rotate together. The first rotating shaft 7 drives the rotating disc body 15 to rotate. When the rotating disc body 15 rotates, the movable push plate 18 is pulled by the linkage push rod 19 to move inside the arc-shaped installation box body 16, increasing the feeding space inside the arc-shaped installation box body 16; One end of the first rotating shaft 7 extends into the large hollow disc 3 and is fixedly connected to a rotating disc body 15. A third rotating shaft 21 is rotatably connected through the back surface of the small hollow disc 5. One end of the third rotating shaft 21 extends into the small hollow disc 5 and is fixedly connected to a guiding disc 22. A feeding opening 23 is arranged on the outer surface of the guiding disc 22. A linkage assembly is arranged between the first rotating shaft 7 and the third rotating shaft 21. The linkage assembly includes a first pulley fixedly connected to the outer surface of the first rotating shaft 7. A second pulley is fixedly connected to the end of the third rotating shaft 21. The first pulley and the second pulley are connected by a belt for transmission. When the first rotating shaft 7 rotates, the third rotating shaft 21 is driven to rotate by the belt, and the third rotating shaft 21 drives the guiding disc 22 to rotate; An arc-shaped mounting box body 16 is fixedly connected inside the large hollow disc 3. One end of the arc-shaped mounting box body 16 is fixedly connected with a second connecting pipe 17, and the other end of the second connecting pipe 17 is fixedly connected with the bottom end of the first connecting pipe 4. A pushing component is arranged between the rotating disc body 15 and the arc-shaped mounting box body 16. The pushing component includes a movable push plate 18 that is hermetically and slidably arranged inside the arc-shaped mounting box body 16. A linkage push-pull rod 19 is inserted through one end of the arc-shaped mounting box body 16 away from the second connecting pipe 17. One end of the linkage push-pull rod 19 is fixedly connected with the rotating disc body 15, and the other end of the linkage push-pull rod 19 is fixedly connected with the movable push plate 18. A return spring 20 is sleeved on the outer surface of the linkage push-pull rod 19. One end of the return spring 20 is fixedly connected with the movable push plate 18, and the other end of the return spring 20 is fixedly connected with the inner wall of the arc-shaped mounting box body 16. An air compressor 24 is fixedly connected to the front surface of the large hollow disc 3. The outlet of the air compressor 24 is fixedly connected with a third connecting pipe 25, and the end of the third connecting pipe 25 away from the air compressor 24 is fixedly connected with the arc-shaped mounting box body 16; The outer surface of the arc-shaped mounting box body 16 is fixedly connected with a fourth connecting pipe 26. The end of the fourth connecting pipe 26 is connected with a collecting box body 31 through a mixing pipeline. The mixing pipeline includes a fifth connecting pipe 27 fixedly connected to the end of the fourth connecting pipe 26. One end of the fifth connecting pipe 27 away from the fourth connecting pipe 26 is fixedly connected with a spiral conveying pipe 28. One end of the spiral conveying pipe 28 away from the fifth connecting pipe 27 is fixedly connected with a sixth connecting pipe 29. One end of the sixth connecting pipe 29 away from the spiral conveying pipe 28 is fixedly connected with the collecting box body 31. Mounting vertical plates 30 are fixedly connected to the outer surfaces of the fifth connecting pipe 27 and the sixth connecting pipe 29. The mounting vertical plates 30 are fixedly connected to the upper surface of the mounting table board 1. An exhaust pipe 32 is fixedly connected to the side wall of the collecting box body 31. A filter screen 33 and a collecting drawer 34 are arranged inside the collecting box body 31. The air is filtered through the arranged filter screen 33 to intercept the silicon carbide micropowder in the air. The filter screen 33 is located between the sixth connecting pipe 29 and the exhaust pipe 32. The collecting drawer 34 is located below the sixth connecting pipe 29. An air inlet pipe 35 is installed on the outer surface of the large hollow disc 3. The air inlet pipe 35 is fixedly connected with the arc-shaped mounting box body 16. Check valves are arranged on both the fourth connecting pipe 26 and the air inlet pipe 35. A valve is installed on the outer surface of the first connecting pipe 4. Cut off the power supply of the electromagnet 14, so that the permanent magnet 13 and the electromagnet 14 [1] are no longer magnetically attracted to each other. When selecting the electromagnet 14, the electromagnet 14 with a larger rotational electromagnetic force should be selected, and it should be ensured that there is enough adsorption force between the electromagnet 14 and the permanent magnet 13 to avoid slipping. At this time, under the action of the return spring 20, the linkage push rod 19 drives the movable push plate 18 to move, compressing the feeding space inside the arc-shaped mounting box body 16. At the same time, start the air compressor 24. The air compressor 24 sends the pressurized air into the inside of the arc-shaped mounting box body 16 through the third connecting pipe 25. At this time, the raw material and the air enter the fourth connecting pipe 26 together, enter the spiral conveying pipe 28 through the fifth connecting pipe 27, are conveyed and mixed inside the spiral conveying pipe 28, and finally enter the collecting drawer 34 inside the collecting box body 31 through the sixth connecting pipe 29 for collection.

[0019] During use, put the mixed raw material into the inside of the storage hopper 6, and the raw material inside the storage hopper 6 enters the feeding opening 23. Start the servo motor 9. The output shaft of the servo motor 9 drives the first rotating gear 10 to rotate, so that the second rotating gear 12 drives the second rotating shaft 11 to rotate. Since the permanent magnet 13 and the electromagnet 14 are magnetically attracted to each other, the second rotating shaft 11 drives the first rotating shaft 7 to rotate together. The first rotating shaft 7 drives the rotating disc body 15 to rotate. When the rotating disc body 15 rotates [2], [3], the movable push plate 18 is pulled by the linkage push rod 19 to move inside the arc-shaped mounting box body 16, increasing the feeding space inside the arc-shaped mounting box body 16. When the first rotating shaft 7 rotates, the third rotating shaft 21 is driven to rotate by a belt. The third rotating shaft 21 drives the material guiding disc 22 to rotate, so that the feeding opening 23 rotates to the position of the first connecting pipe 4. At this time, the raw materials inside the feeding opening 23 enter the first connecting pipe 4. Then, the valve on the outer surface of the first connecting pipe 4 is opened, and the raw materials enter the inside of the arc-shaped mounting box body 16 through the second connecting pipe 17. The electromagnet 14 is powered off, so that the permanent magnet 13 and the electromagnet 14 are no longer magnetically attracted to each other. At this time, under the action of the return spring 20, the linkage push-pull rod 19 drives the movable push plate 18 to move, compressing the feeding space inside the arc-shaped mounting box body 16. At the same time, the air compressor 24 is started. The air compressor 24 sends pressurized air into the inside of the arc-shaped mounting box body 16 through the third connecting pipe 25. At this time, the raw materials and the air enter the fourth connecting pipe 26 together, and enter the spiral conveying pipe 28 through the fifth connecting pipe 27, and are conveyed and mixed inside the spiral conveying pipe 28. Finally, they enter the collection drawer 34 inside the collection box body 31 through the sixth connecting pipe 29 for collection. When compressing the feeding space, pneumatic conveying of the raw materials can be completed in cooperation with high-pressure air. At the same time, the feeding space is also reduced, so that as much of the raw materials in the feeding space as possible can be conveyed out. When the electromagnet 14 is powered off, the linkage push-pull rod 19 drives the rotating disc body 15 to rotate. The rotating disc body 15 drives the first rotating shaft 7 to rotate together. When the first rotating shaft 7 rotates, the third rotating shaft 21 is driven to rotate by a belt. The third rotating shaft 21 drives the material guiding disc 22 to rotate and reset, so that the feeding opening 23 resets to the position below the storage hopper 6, and the raw materials re-enter the feeding opening 23 to prepare for the next feeding. Then, the electromagnet 14 can be powered on again.

[0020] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a reference structure" does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic mixing device for silicon carbide micropowder, comprising a mounting table board (1), characterized in that: The upper surface of the installation platen (1) is fixedly connected with a fixed base (2). The top of the fixed base (2) is fixedly connected with a large hollow disc (3). The top of the large hollow disc (3) is fixedly connected with a first connecting pipe (4). The top of the first connecting pipe (4) is fixedly connected with a small hollow disc (5). The top of the small hollow disc (5) is fixedly connected with a storage hopper (6). The back of the large hollow disc (3) is rotatably connected through a first rotating shaft (7). A driving mechanism for driving the first rotating shaft (7) to rotate is installed on the upper surface of the installation platen (1). One end of the first rotating shaft (7) extends into the large hollow disc (3) and is fixedly connected with a rotating disc body (15). The back of the small hollow disc (5) is rotatably connected through a third rotating shaft (21). One end of the third rotating shaft (21) extends into the small hollow disc (5) and is fixedly connected with a material guiding disc (22). A feeding opening (23) is formed on the outer surface of the material guiding disc (22). A linkage assembly is arranged between the first rotating shaft (7) and the third rotating shaft (21). An arc-shaped installation box body (16) is fixedly connected inside the large hollow disc (3). One end of the arc-shaped installation box body (16) is fixedly connected with a second connecting pipe (17). The other end of the second connecting pipe (17) is fixedly connected with the bottom end of the first connecting pipe (4). A pushing assembly is arranged between the rotating disc body (15) and the arc-shaped installation box body (16). The outer surface of the arc-shaped installation box body (16) is fixedly connected with a fourth connecting pipe (26). The end of the fourth connecting pipe (26) is connected with a collection box body (31) through a mixing pipeline.

2. The pneumatic mixing device for silicon carbide micropowder according to claim 1, characterized in that: The driving mechanism includes a fixed vertical plate (8) fixedly connected to the upper surface of the installation platen (1). A second rotating shaft (11) is rotatably connected to the side wall of the fixed vertical plate (8). A permanent magnet (13) is fixedly connected to the end of the second rotating shaft (11) away from the fixed vertical plate (8). An electromagnet (14) is fixedly connected to the end of the first rotating shaft (7) away from the rotating disc body (15). The permanent magnet (13) and the electromagnet (14) are magnetically coupled. A servo motor (9) is fixedly connected to the side wall of the fixed vertical plate (8). The output shaft of the servo motor (9) is fixedly connected with a first rotating gear (10). A second rotating gear (12) is fixedly connected to the outer surface of the second rotating shaft (11). The first rotating gear (10) and the second rotating gear (12) are meshed and connected.

3. The pneumatic mixing device for silicon carbide micropowder according to claim 1, wherein: The linkage assembly includes a first pulley fixedly connected to the outer surface of the first rotating shaft (7). A second pulley is fixedly connected to the end of the third rotating shaft (21). The first pulley and the second pulley are connected by a belt drive.

4. A silicon carbide micropowder pneumatic mixing device according to claim 1, characterized in that: The driving assembly includes a movable push plate (18) sealingly and slidably arranged inside an arc-shaped mounting box body (16). One end of the arc-shaped mounting box body (16) away from the second connecting pipe (17) is inserted with a linkage push-pull rod (19) in a penetrating manner. One end of the linkage push-pull rod (19) is fixedly connected to a rotating disc body (15), and the other end of the linkage push-pull rod (19) is fixedly connected to the movable push plate (18). A return spring (20) is sleeved on the outer surface of the linkage push-pull rod (19). One end of the return spring (20) is fixedly connected to the movable push plate (18), and the other end of the return spring (20) is fixedly connected to the inner wall of the arc-shaped mounting box body (16).

5. The pneumatic mixing device for silicon carbide micropowder according to claim 1, wherein: A air compressor (24) is fixedly connected to the front surface of the large hollow disc (3). The outlet of the air compressor (24) is fixedly connected to a third connecting pipe (25). One end of the third connecting pipe (25) away from the air compressor (24) is fixedly connected to the arc-shaped mounting box body (16).

6. The pneumatic mixing device for silicon carbide micropowder according to claim 1, wherein: The mixing pipeline includes a fifth connecting pipe (27) fixedly connected to the end of a fourth connecting pipe (26). One end of the fifth connecting pipe (27) away from the fourth connecting pipe (26) is fixedly connected to a spiral conveying pipe (28). One end of the spiral conveying pipe (28) away from the fifth connecting pipe (27) is fixedly connected to a sixth connecting pipe (29). One end of the sixth connecting pipe (29) away from the spiral conveying pipe (28) is fixedly connected to a collection box body (31). Mounting vertical plates (30) are fixedly connected to the outer surfaces of the fifth connecting pipe (27) and the sixth connecting pipe (29). The mounting vertical plates (30) are fixedly connected to the upper surface of a mounting table plate (1).

7. The pneumatic mixing device for silicon carbide micropowder according to claim 6, wherein: An exhaust pipe (32) is fixedly connected to the side wall of the collection box body (31). A filter screen (33) and a collection drawer (34) are arranged inside the collection box body (31). The filter screen (33) is located between the sixth connecting pipe (29) and the exhaust pipe (32), and the collection drawer (34) is located below the sixth connecting pipe (29).

8. The pneumatic mixing device for silicon carbide micropowder according to claim 1, characterized in that: An intake pipeline (35) is installed on the outer surface of the large hollow disc (3). The intake pipeline (35) is fixedly connected to the arc-shaped mounting box body (16). Check valves are provided on both the fourth connecting pipe (26) and the intake pipeline (35). A valve is installed on the outer surface of the first connecting pipe (4).

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