Silicon carbide micro-powder collecting device

Abstract

The invention relates to the technical field of dust collection, in particular to a silicon carbide micro powder collecting device. Comprising a drying device, a feeding device and a discharging device, the drying device comprises a supporting frame, a feeding disc and a material distribution bin, the feeding disc is fixedly connected with the supporting frame, the lower end of the feeding disc is in sliding fit with a supporting disc, the supporting disc is provided with an air pressure device and clamped with the material distribution bin, and the material distribution bin is divided into an upper cavity and a lower cavity through a partition plate; the lower chamber is divided into an inner chamber and an outer chamber, the upper chamber is communicated with the inner chamber and the outer chamber, the inner chamber is matched with the discharging device through the first discharging port, the outer chamber is matched with the discharging device through the second discharging port, and the material distribution bin rotates through the power device; according to the device, the drying device is arranged for drying, and when the drying device is used for drying, silicon carbide dust is further crushed through rotation of crushing blades, so that the silicon carbide dust is subjected to accumulation, condensation and damage caused by acid pickling, and condensation of the silicon carbide dust is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of dust collection technology, specifically to a silicon carbide micro powder collection device. Background Technology

[0002] Silicon carbide (SiC) is an inorganic compound produced by high-temperature smelting in an electric resistance furnace from raw materials such as quartz sand, petroleum coke (or coal coke), and sawdust (salt is added when producing green silicon carbide). Silicon carbide also exists in nature as a rare mineral, moissanite. Among non-oxide high-tech refractory materials such as C, N, and B, silicon carbide is the most widely used and economical, and can be called carborundum or refractory sand. Industrially produced silicon carbide in China is divided into two types: black silicon carbide and green silicon carbide, both hexagonal crystals with a specific gravity of 3.20–3.25 and a microhardness of 2840–3320 kg / mm².

[0003] In modern production, silicon carbide dust needs to be finely ground to achieve better results when used. The existing grinding method involves crushing silicon carbide raw materials with a crusher, screening them into silicon carbide particles no larger than 5 mm, and then using a molding machine to shape them into silicon carbide particles no larger than 2 mm, with more than 80% of them being elliptical particles. After that, they are acid-washed and dried, and then stored.

[0004] However, in practical applications, during pickling, silicon carbide dust accumulates and condenses, making it difficult to break up the silicon carbide. Furthermore, the accumulation and condensation make drying the silicon carbide dust difficult, as it is hard to dry the interior of the dust. Moreover, the accumulation and condensation also make storage inconvenient. Existing equipment simply breaks up the accumulated dust, which has little impact on the drying process, resulting in low dust drying efficiency. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies, such as the tendency for powder to accumulate and condense, which affects drying, by providing a silicon carbide micro powder collection device.

[0006] To address the aforementioned technical problem of easy accumulation and condensation affecting drying, the present invention provides the following technical solution.

[0007] This invention provides a silicon carbide micro powder collection device, including a drying device, a feeding device, and a discharging device. The drying device includes a support frame, a feeding tray, and a distributing bin. The feeding tray is fixedly connected to the support frame, and a support tray is slidably fitted to the lower end of the feeding tray. The support tray is equipped with an air pressure device. The support tray engages with the distributing bin. The distributing bin is divided into an upper chamber and a lower chamber by a partition. The lower chamber is further divided into an inner chamber and an outer chamber. The upper chamber communicates with both the inner and outer chambers. The inner chamber engages with the discharging device through a first discharge port, and the outer chamber engages with the discharging device through a second discharge port. The distributing bin is rotated by a power device, and the feeding device and the discharging device transport the dust through a transport device.

[0008] Furthermore, the material distribution bin is divided into an upper chamber and a lower chamber by a partition. The lower chamber is further divided into an inner chamber and an outer chamber. The upper chamber is connected to both the inner and outer chambers. The inner chamber is connected to the discharge device via a first discharge port, and the outer chamber is connected to the discharge device via a second discharge port. By setting up the upper and lower chambers of the material distribution bin, the silicon carbide dust can remain after passing through the partition, resulting in a longer drying time and higher drying efficiency. Furthermore, by setting up the outer and inner chambers, silicon carbide dust particles of different diameters can be stored separately, thereby effectively improving the quality of the silicon carbide dust.

[0009] Furthermore, the support frame has a second groove that slides with the outer wall of the distribution bin, and a third groove is provided at the lower end of the support frame, which cooperates with the power device. By providing the second and third grooves, the support frame and the distribution bin are connected. Preferably, a baffle is provided at the bottom of the second groove, which makes the connection between the distribution bin and the support frame more stable. The power device is then connected to the distribution bin through the third groove, thus enabling the rotation of the distribution bin to be controlled by the power device.

[0010] Furthermore, the lower outer wall of the material distribution bin is provided with gear teeth, which mesh with a gear. The upper and lower ends of the gear slide in fit with the third groove, and the gear is connected to the power device. By setting the gear teeth and the gear, the gear can be rotated by controlling the gear through the power device. The gear meshing with the gear teeth drives the material distribution bin to rotate. The rotation of the material distribution bin causes the internal dust to be centrifuged, thereby further improving the drying efficiency. Moreover, the centrifugation process further separates the particles by size.

[0011] Furthermore, a first locking block is provided on the upper inner wall of the material distribution bin, and a second locking block is provided on the edge of the support plate to cooperate with the first locking block; by setting the first locking block and the second locking block, the support plate and the material distribution bin are fixedly connected, that is, when the material distribution bin rotates, the support plate rotates accordingly, thereby making the support plate and the feeding plate rotate relative to each other.

[0012] Furthermore, the support plate has a fourth groove, which is hinged to the air pressure device. The air pressure device includes a rotating shaft and a fan blade. The fan blade is fixedly connected to the outer wall of the rotating shaft, and the fan blade is engaged with the lower end of the feed plate. By setting the fourth groove and the fan blade, when the support plate and the feed plate rotate relative to each other, the lower end of the feed plate engages with the fan blade. Preferably, the fan blade is made of soft rubber material, which causes the feed plate to drive the fan blade to rotate. The rotation of the fan blade drives the airflow downward, which causes the fine dust in the distribution bin to sink to the bottom as much as possible. Preferably, the distribution bin is provided with a vent hole, which is connected to the lower edge of the support plate. When the support plate rotates, water vapor condenses at the lower end of the support plate and flows into the vent hole through centrifugal force, and finally is discharged through the vent hole. This also achieves air pressure balance in the distribution bin, thereby further improving the drying effect of silicon carbide dust.

[0013] Furthermore, the partition is provided with a perforation that communicates with the inner chamber, and a first through hole is provided on the edge of the partition that communicates with the outer chamber. By providing the perforation, secondary particle screening is achieved through the perforation, further improving the fine powder quality of silicon carbide dust. The preferred partition is U-shaped, so that when silicon carbide dust is placed on the upper end of the partition, it first cooperates with the perforation, and then the centrifugal force separates the large particles of dust to the edge of the partition. Finally, it enters the outer chamber through the first through hole for further separation, further improving the quality of silicon carbide dust.

[0014] Furthermore, a support rod is provided at the central axis of the partition, and a crushing blade is provided on the outer wall of the support rod. The crushing blade cooperates with the inner wall of the connecting sleeve. By setting the support rod and the crushing blade, when silicon carbide dust enters the connecting sleeve through the feed pan, the rotation of the distribution bin drives the crushing blade to rotate. The rotation of the crushing blade further crushes the silicon carbide dust, thereby breaking down the accumulation and agglomeration of silicon carbide dust during acid washing. Then, the heat on the feed pan is transferred downward by centrifugation and fan blades, which causes secondary heating and drying of silicon carbide dust, further improving the drying efficiency of silicon carbide dust and making the internal drying efficiency of silicon carbide dust even higher, effectively improving the quality of silicon carbide dust.

[0015] Furthermore, a connecting sleeve is provided at the lower end of the central axis of the feeding disc, and a first groove is provided at the lower end of the feeding disc. A sliding ring that cooperates with the first groove is provided at the upper end of the distributing bin. By setting the first groove and the sliding ring, the feeding disc and the distributing bin are cooperated. When the distributing bin rotates, the feeding of the feeding disc is not affected. The discharge device includes a left conveyor belt and a right conveyor belt. The left conveyor belt cooperates with the second discharge port, and the right conveyor belt cooperates with the first discharge port. By setting the structure of the discharge device, the silicon carbide dust is centrifuged and then collected separately, thereby effectively improving the quality of the silicon carbide dust.

[0016] Furthermore, a connecting plate is provided at the lower end of the support frame, and the upper end of the connecting plate is slidably engaged with the lower end of the material distribution bin. The two ends of the connecting plate are respectively connected to the first discharge port and the second discharge port. By providing the connecting plate, the connection between the first discharge port and the second discharge port and the discharge device is realized.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This device uses a drying unit to dry the silicon carbide dust. During the drying process, the silicon carbide dust is further broken down by the rotation of the crushing blades, which in turn destroys the accumulation and agglomeration of silicon carbide dust caused by acid washing, effectively reducing the agglomeration of silicon carbide dust.

[0019] The heat from the feed tray is then transferred downwards by centrifugation and fan blades, resulting in secondary heating and drying of the silicon carbide dust. The baffle is U-shaped, so when the silicon carbide dust is placed on the upper part of the baffle, it first engages with the perforation. Then, centrifugal force separates large dust particles to the edge of the baffle. Finally, the particles enter the outer chamber through the first through-hole for further separation. Subsequently, dust particles of different diameters are collected through two discharge ports, thereby effectively improving the quality of the silicon carbide dust and the drying efficiency inside the silicon carbide dust. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a top view of the overall structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the support plate and the material distribution bin of the present invention;

[0024] Figure 4 This is a schematic diagram of the material distribution bin structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the support frame of the present invention;

[0026] Figure 6 This is a schematic diagram of the support disk structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the air pressure device structure of the present invention.

[0028] The labels in the diagram represent: 1. Drying device; 2. Feeding device; 3. Discharging device; 4. Support frame; 5. Feeding tray; 6. Distribution bin; 7. Support tray; 8. Air pressure device; 9. Partition plate; 10. Upper chamber; 11. Lower chamber; 12. Inner chamber; 13. Outer chamber; 14. First discharge port; 15. Second discharge port; 16. Power unit; 17. Connecting sleeve; 18. First groove; 19. Sliding ring; 20. Second groove; 21. Third groove; 22. Gear tooth; 23. Gear; 24. First locking block; 25. Second locking block; 26. Fourth groove; 27. Rotating shaft; 28. Fan blade; 29. ​​Leakage hole; 30. First through hole; 31. Support rod; 32. Crushing blade; 33. Left conveyor belt; 34. Right conveyor belt; 35. Connecting tray. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0031] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0032] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0033] This invention provides a silicon carbide micro powder collection device, including a drying device 1, a feeding device 2, and a discharging device 3. The drying device 1 includes a support frame 4, a feeding tray 5, and a distributing bin 6. Preferably, the drying device 1 is also equipped with a drying lamp, which is located at the upper end of the feeding device 2. Preferably, the feeding tray 5 is made of metal, and the upper surface of the feeding tray 5 is non-reflective, so that the heat from the drying lamp of the drying device 1 is transferred to the feeding tray 5, and then to the distributing bin 6, forming a warm environment in the distributing bin 6, further improving the drying time of silicon carbide dust and thus achieving higher drying efficiency. The feeding tray 5 is fixedly connected to the support frame 4, and a support tray 7 is slidably fitted at the lower end of the feeding tray 5. The disk 7 is equipped with a wind pressure device 8. Preferably, the wind pressure device 8 is fixedly connected to the support disk 7, so that when the support disk 7 rotates, the wind pressure device 8 works in conjunction with the feeding disk 5 to achieve linkage. The support disk 7 engages with the distribution bin 6, and the distribution bin 6 is rotated by the power device 16. The feeding device 2 and the discharging device 3 transport the dust through the conveying device. Preferably, the conveying structure of the feeding device 2 is provided with a water control hole, so that the silicon carbide dust undergoes initial water control drying through the feeding device 2. Preferably, the conveying structure of the feeding device 2 has large vibration, which further improves the drying effect of the feeding device 2, so that the drying time of silicon carbide dust when it enters the drying device 1 is shorter, effectively improving the drying efficiency of silicon carbide dust.

[0034] The material distribution bin 6 is divided into an upper chamber 10 and a lower chamber 11 by a partition 9. The lower chamber 11 is further divided into an inner chamber 12 and an outer chamber 13. The upper chamber 10 is connected to both the inner chamber 12 and the outer chamber 13. The inner chamber 12 is connected to the discharge device 3 via a first discharge port 14, and the outer chamber 13 is connected to the discharge device 3 via a second discharge port 15. By setting up the upper chamber 10 and the lower chamber 11 of the material distribution bin 6, the silicon carbide dust can remain on the partition 9, resulting in a longer drying time and higher drying efficiency. Furthermore, by setting up the outer chamber 13 and the inner chamber 12, particles of different diameters of silicon carbide dust can be stored separately, thereby effectively improving the quality of the silicon carbide dust.

[0035] The support frame 4 has a second groove 20, which slides with the outer wall of the distribution bin 6. The lower end of the support frame 4 has a third groove 21, which works with the power device 16. By setting the second groove 20 and the third groove 21, the support frame 4 and the distribution bin 6 are connected. Preferably, the bottom end of the second groove 20 is provided with a baffle, which makes the connection between the distribution bin 6 and the support frame 4 more stable. The power device 16 is connected to the distribution bin 6 through the third groove 21, that is, the rotation of the distribution bin 6 is controlled by the power device 16.

[0036] The lower outer wall of the material distribution bin 6 is provided with gear teeth 22, which mesh with gear 23. The upper and lower ends of gear 23 are slidably engaged with the third groove 21. Gear 23 is connected to the power device 16. By setting gear teeth 22 and gear 23, the power device 16 controls the rotation of gear 23. Gear 23 meshes with gear teeth 22 to drive the material distribution bin 6 to rotate. The rotation of material distribution bin 6 causes the internal dust to be centrifuged, thereby further improving the drying efficiency. Furthermore, the centrifugation process is used to further separate the particles by size.

[0037] The upper inner wall of the material distribution bin 6 is provided with a first locking block 24, and the edge of the support plate 7 is provided with a second locking block 25 that cooperates with the first locking block 24. By setting the first locking block 24 and the second locking block 25, the support plate 7 and the material distribution bin 6 are fixedly connected, that is, when the material distribution bin 6 rotates, the support plate 7 rotates accordingly, thereby making the support plate 7 and the feeding plate 5 rotate relative to each other.

[0038] The support plate 7 has a fourth groove 26, which is hinged to the air pressure device 8. The air pressure device 8 includes a rotating shaft 27 and a fan blade 28. The fan blade 28 is fixedly connected to the outer wall of the rotating shaft 27 and is engaged with the lower end of the feed plate 5. By setting the fourth groove 26 and the fan blade 28, when the support plate 7 and the feed plate 5 rotate relative to each other, the lower end of the feed plate 5 engages with the fan blade 28. Preferably, the fan blade 28 is made of soft rubber material, which causes the feed plate 5 to drive the fan blade 28 to rotate. The rotation of the fan blade 28 causes the airflow to press down, which causes the fine dust in the distribution bin 6 to sink to the bottom as much as possible. Preferably, the distribution bin 6 is provided with a vent hole, which is connected to the lower edge of the support plate 7. When the support plate 7 rotates, water vapor condenses at the lower end of the support plate 7 and flows into the vent hole through centrifugal force, and finally is discharged through the vent hole. This also achieves air pressure balance in the distribution bin 6, which further improves the drying effect of silicon carbide dust.

[0039] The partition 9 is provided with a perforation 29, which is connected to the inner chamber 12. The edge of the partition 9 is provided with a first through hole 30, which is connected to the outer chamber 13. By providing the perforation 29, secondary particle screening can be achieved through the perforation 29, which further improves the quality of silicon carbide dust. The partition 9 is preferably U-shaped, so that when silicon carbide dust is placed on the upper end of the partition 9, it first cooperates with the perforation 29, and then the centrifugal force separates the large dust particles to the edge of the partition 9. Finally, it enters the outer chamber 13 through the first through hole 30 for further separation, which further improves the quality of silicon carbide dust.

[0040] A support rod 31 is installed at the central axis of the partition 9, and a crushing blade 32 is installed on the outer wall of the support rod 31. The crushing blade 32 cooperates with the inner wall of the connecting sleeve 17. By setting the support rod 31 and the crushing blade 32, when silicon carbide dust enters the connecting sleeve 17 through the feed plate 5, the distribution bin 6 rotates, which drives the crushing blade 32 to rotate. The rotation of the crushing blade 32 further crushes the silicon carbide dust, thereby destroying the accumulation and agglomeration of silicon carbide dust during pickling. Then, the heat on the feed plate 5 is transferred downward by centrifugation and fan blades 28, which causes secondary heating and drying of silicon carbide dust, further improving the drying efficiency of silicon carbide dust and making the internal drying efficiency of silicon carbide dust even higher, effectively improving the quality of silicon carbide dust.

[0041] The feeding disc 5 has a connecting sleeve 17 at its lower end along its central axis, and a first groove 18 at its lower end. The distribution bin 6 has a sliding ring 19 at its upper end that engages with the first groove 18. By setting the first groove 18 and the sliding ring 19, the feeding disc 5 and the distribution bin 6 are coordinated. When the distribution bin 6 rotates, the feeding of the feeding disc 5 is not affected. The discharge device 3 includes a left conveyor belt 33 and a right conveyor belt 34. The left conveyor belt 33 engages with the second discharge port 15, and the right conveyor belt 34 engages with the first discharge port 14. By setting the structure of the discharge device 3, the silicon carbide dust is centrifuged and then collected separately, thereby effectively improving the quality of the silicon carbide dust.

[0042] The lower end of the support frame 4 is provided with a connecting plate 35. The upper end of the connecting plate 35 is slidably engaged with the lower end of the material distribution bin 6. The two ends of the connecting plate 35 are respectively connected to the first discharge port 14 and the second discharge port 15. By setting the connecting plate 35, the connection between the first discharge port 14 and the second discharge port 15 and the discharge device 3 is realized.

[0043] Working Principle: This device uses a feeding device 2 to transport silicon carbide dust, which is then dried by a drying device 1. During drying, the silicon carbide dust enters the connecting sleeve 17 through the feeding disc 5. The rotating distribution bin 6 drives the crushing blades 32 to rotate, further crushing the silicon carbide dust and breaking down the accumulation and agglomeration caused by acid washing. The heat from the feeding disc 5 is then transferred downwards by centrifugation and the fan blades 28, resulting in secondary heating and drying of the silicon carbide dust. The partition 9 is U-shaped, so when the silicon carbide dust is placed on the upper part of the partition 9, it first engages with the perforation 29. Then, centrifugal force separates large dust particles to the edge of the partition 9. Finally, the dust enters the outer chamber 13 through the first through hole 30 for further separation. Subsequently, dust particles of different diameters are collected through two discharge ports, effectively improving the quality of the silicon carbide dust and the drying efficiency inside the dust.

[0044] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A silicon carbide micro powder collecting device, comprising a drying device (1), a feeding device (2), and a discharging device (3), characterized in that, The drying device (1) includes a support frame (4), a feeding tray (5) and a distributing bin (6). The feeding tray (5) is fixedly connected to the support frame (4). The lower end of the feeding tray (5) is slidably fitted with a support plate (7). The support plate (7) is equipped with an air pressure device (8). The support plate (7) is engaged with the distributing bin (6). The distributing bin (6) is rotated by a power device (16). The feeding device (2) and the discharging device (3) transport dust through a transport device.

2. The silicon carbide micro powder collecting device according to claim 1, characterized in that, The material distribution bin (6) is divided into an upper chamber (10) and a lower chamber (11) by a partition (9). The lower chamber (11) is divided into an inner chamber (12) and an outer chamber (13). The upper chamber (10) is connected to the inner chamber (12) and the outer chamber (13) respectively. The inner chamber (12) is connected to the discharge device (3) through a first discharge port (14). The outer chamber (13) is connected to the discharge device (3) through a second discharge port (15).

3. The silicon carbide micro powder collecting device according to claim 1, characterized in that, The support frame (4) has a second groove (20), which slides with the outer wall of the distribution bin (6). The lower end of the support frame (4) has a third groove (21), which cooperates with the power device (16).

4. The silicon carbide micro powder collecting device according to claim 3, characterized in that, The lower outer wall of the material distribution bin (6) is provided with gear teeth (22), which mesh with gears (23). The upper and lower ends of the gears (23) slide in cooperation with the third groove (21), and the gears (23) are connected to the power device (16).

5. The silicon carbide micro powder collecting device according to claim 1, characterized in that, The upper inner wall of the material distribution bin (6) is provided with a first locking block (24), and the edge of the support plate (7) is provided with a second locking block (25) that cooperates with the first locking block (24).

6. The silicon carbide micro powder collecting device according to claim 5, characterized in that, The support plate (7) has a fourth groove (26), which is hinged to the air pressure device (8). The air pressure device includes a rotating shaft (27) and a fan blade (28). The outer wall of the rotating shaft (27) is fixedly connected to the fan blade (28), and the fan blade (28) is engaged with the lower end of the feed plate (5).

7. The silicon carbide micro powder collecting device according to claim 2, characterized in that, The partition (9) is provided with a leakage hole (29) which is connected to the inner chamber (12). The edge of the partition (9) is provided with a first through hole (30) which is connected to the outer chamber (13).

8. A silicon carbide micro powder collecting device according to claim 2, characterized in that, A support rod (31) is provided at the central axis of the partition (9). A crushing blade (32) is provided on the outer wall of the support rod (31). The crushing blade (32) cooperates with the inner wall of the connecting sleeve (17). A connecting sleeve (17) is provided at the lower end of the central axis of the feed plate (5). A first groove (18) is provided at the lower end of the feed plate (5). A sliding ring (19) that cooperates with the first groove (18) is provided at the upper end of the distribution bin (6).

9. A silicon carbide micro powder collecting device according to claim 1, characterized in that, The discharge device (3) includes a left conveyor belt (33) and a right conveyor belt (34). The left conveyor belt (33) is connected to the second discharge port (15), and the right conveyor belt (34) is connected to the first discharge port (14).

10. A silicon carbide micro powder collecting device according to claim 1, characterized in that, The lower end of the support frame (4) is provided with a connecting plate (35), the upper end of the connecting plate (35) is slidably engaged with the lower end of the material distribution bin (6), and the two ends of the connecting plate (35) are respectively connected to the first discharge port (14) and the second discharge port (15).

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