Material spraying and dust removing device for pre-grading of silicon carbide micro powder

Abstract

The utility model discloses a material spraying dust removal device for silicon carbide micro powder pre-grading, it includes: stock bin, pre-separation device, dust removal chamber, drying cylinder, pre-separation device is composed of feed inlet, dust removal fan no. 1, filter screen no. A cyclone separator is fixedly connected to the interior of the dust removal chamber, the height of the collecting tank is lower than the position of the inclined panel, the end, away from the collecting tank, of the flow guide pipe is fixedly connected with the drying cylinder, the spraying device is located on the inner top face of the dust removal chamber, and the spraying device is composed of a spraying pipe and a spraying head. And meanwhile, the wet-type dust removal efficiency is higher than the traditional dry-type dust removal efficiency and effect, so that the overall dust removal efficiency of the dust removal device is improved to the maximum extent.

Description

Technical Field

[0001] This utility model relates to the technical field of silicon carbide micro powder pre-classification device, and in particular to a spray dust removal device for silicon carbide micro powder pre-classification. Background Technology

[0002] Silicon carbide micro powder is a very useful industrial material. Due to its excellent hardness and wear resistance, it is widely used in grinding and polishing in glass, electronics, semiconductor and other fields. Due to its high heat resistance and corrosion resistance, it is an important raw material for manufacturing various refractory bricks, crucibles and other refractory materials. With its excellent physical and chemical properties, silicon carbide micro powder has become an indispensable key material in many cutting-edge industrial fields.

[0003] In the preparation of silicon carbide micron powder, particles ranging from a few micrometers to hundreds of micrometers are typically generated. This wide particle size distribution poses a significant challenge to subsequent dust removal processes, as the collection mechanisms and efficiencies vary considerably depending on the particle size. Coarser particles rely more on inertial separation, while finer particles depend more on filter media collection. Introducing a wide range of dust particles into the main dust collector at once would place an excessive processing load on the main dust collector, affecting its dust removal efficiency and stability. Therefore, to further improve the practicality and adaptability of the dust collection device, we propose a spray dust collector for the pre-classification of silicon carbide micron powder to address the aforementioned issues. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a spray dust removal device for pre-classification of silicon carbide micro powder. A pre-separation device is added between the silo and the dust removal chamber for primary pre-separation. By using an inertial separation plate, coarser particles can be removed first, reducing the load on the main dust removal chamber. Then, combined with a spray device installed in the dust removal chamber, and by using the dust removal chamber separately from the cyclone separator within the dust removal chamber, the fine dust particles separated in the cyclone separator undergo wet dust removal. Finally, a drying cylinder dries the moist fine dust particles, and the dried powder is collected and packaged for subsequent use. This improves the efficiency and stability of the main dust removal process. Furthermore, the wet dust removal efficiency is higher than that of traditional dry dust removal, maximizing the overall dust removal efficiency of the dust removal device.

[0005] This utility model also provides a spray dust removal device for pre-classification of silicon carbide micro powder, comprising: a silo, a pre-separation device, a dust removal chamber, and a drying cylinder. The pre-separation device consists of a feed inlet, a dust removal fan, a filter screen, and a collection hopper. The dust removal chamber consists of a collection trough, a guide pipe, an inclined plate, and a spray device. A cyclone separator is fixedly connected inside the dust removal chamber. The height of the collection trough is lower than the position of the inclined plate. The end of the guide pipe away from the collection trough is fixedly connected to the drying cylinder. The spray device is located on the inner top surface of the dust removal chamber and consists of a spray pipe and a spray head.

[0006] According to the present invention, a spray dust removal device for pre-classification of silicon carbide micro powder is provided, wherein a conveying pipe is fixedly connected between the side of the hopper and the pre-separation device, and a screw conveyor is rotatably connected inside the conveying pipe. This is used to control and convey an appropriate amount of micro powder to the inlet of the pre-separation device.

[0007] According to the present invention, a spray dust removal device for pre-classification of silicon carbide micro powder is provided. The pre-separation device has a side-mounted feed inlet connected to a screw conveyor, and the feed inlet is positioned opposite to a filter screen. This facilitates the intake of dust filtered by the dust removal fan and filter screen into a cyclone separator.

[0008] According to the present invention, a spray dust removal device for pre-classification of silicon carbide micro powder is provided, wherein the pre-separation device is connected to the dust removal chamber via a pipeline, and a suction fan is fixedly connected between the pre-separation device and the dust removal chamber.

[0009] According to the present invention, a spray dust removal device for pre-classification of silicon carbide micro powder is provided, wherein a filter media barrel is fixedly connected to the bottom surface of the cyclone separator, and a conveying pipe is fixedly connected to the surface of the filter media barrel.

[0010] According to the present invention, a spray dust removal device for pre-classification of silicon carbide micro powder is provided, wherein a second filter screen is provided at the connection between the filter media barrel and the conveying pipe, and the end of the conveying pipe away from the filter media barrel passes through the dust removal chamber and is fixedly connected to a second dust removal fan. This device is used to filter and convey fine particulate dust separated by a cyclone separator.

[0011] According to the present invention, a spray dust removal device for pre-classification of silicon carbide micropowder is provided, wherein a sealing cover is fixedly connected to the bottom surface of the filter media barrel. This is used to collect and periodically discharge the separated micropowder particles.

[0012] According to the present invention, a spray dust removal device for pre-classification of silicon carbide micro powder is provided, wherein the hopper and the dust removal chamber are respectively fixedly connected to a fixed frame, the pre-separation device penetrates the interior of the fixed frame, and the drying cylinder is located on the bottom surface of the fixed frame. This facilitates the conveying and discharge of dust.

[0013] Beneficial effects: Adding a pre-separation device between the silo and the dust collection chamber allows for primary pre-separation. By using an inertial separation plate, coarser particles can be removed first, reducing the load on the main dust collection chamber. Combined with the spray device in the dust collection chamber and the separate use of the dust collection chamber and the cyclone separator in the dust collection chamber, the fine dust particles separated by the cyclone separator are subjected to wet dust collection. Finally, the wet fine dust particles are dried using a drying cylinder. The dried powder is collected and packaged to prepare for subsequent use. This helps improve the efficiency and stability of the main dust collection. At the same time, wet dust collection is more efficient and effective than traditional dry dust collection, allowing the dust collection device to maximize the overall dust collection efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall structural diagram of the spray dust removal device for pre-classification of silicon carbide micro powder according to this utility model.

[0016] Figure 2 This is a structural diagram of the pre-separation device of the spray dust removal device for pre-classification of silicon carbide micro powder according to this utility model;

[0017] Figure 3 This is a structural diagram of the dust removal chamber of the spray dust removal device for pre-classification of silicon carbide micro powder according to this utility model;

[0018] Figure 4 This utility model relates to a spray dust removal device for pre-classification of silicon carbide micro powder. Figure 3 Enlarged view of point A in the middle.

[0019] Legend:

[0020] 1. Material hopper; 2. Conveying pipe; 3. Pre-separation device; 31. Filter screen one; 4. Suction fan; 5. Dust removal chamber; 51. Collection tank; 52. Guide pipe; 53. Inclined panel; 54. Spraying device; 6. Cyclone separator; 61. Filter media barrel; 62. Filter screen two; 7. Conveying pipe; 71. Dust removal fan two; 8. Drying cylinder; 9. Screw conveyor; 10. Fixing frame. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4This utility model discloses a spray dust removal device for pre-classification of silicon carbide micro powder, comprising: a hopper 1, a pre-separation device 3, a dust removal chamber 5, and a drying cylinder 8. It achieves multi-stage separation of silicon carbide micro powder. The pre-separation device 3 consists of an inlet, a dust removal fan, a filter screen 31, and a collection hopper, used to remove coarser particles first, reducing the load on the main dust removal device. The dust removal chamber 5 consists of a collection trough 51, a guide pipe 52, an inclined plate 53, and a spray device 54, used in conjunction with the spray device 54 to perform wet dust removal by utilizing the collision and adsorption of droplets with dust particles. This can improve the capture effect of fine particles. A cyclone separator 6 is fixedly connected inside the dust removal chamber 5, which uses the centrifugal force generated by the rotation of airflow to separate the larger fine powder particles in the dust removal chamber 5. The height of the collection tank 51 is lower than the position of the inclined plate 53, so that the mixture of droplets and dust can flow into the guide pipe 52. The end of the guide pipe 52 away from the collection tank 51 is fixedly connected to the drying cylinder 8 for drying the wet dust. The spray device 54 is located on the inner top surface of the dust removal chamber 5. The spray device 54 consists of a spray pipe and a spray head, which makes it convenient to capture fine dust particles.

[0023] A conveying pipe 2 is fixedly connected between the side of the hopper 1 and the pre-separation device 3. A screw conveyor 9 is rotatably connected inside the conveying pipe 2 to control and convey an appropriate amount of fine powder to the feed inlet of the pre-separation device 3. The feed inlet on the side of the pre-separation device 3 is fixedly connected to the screw conveyor 9. The feed inlet is opposite to the filter screen 31 to facilitate the dust filtered by the dust removal fan and the filter screen 31 to be sucked into the cyclone separator 6 for further classification. The pre-separation device 3 is connected to the dust removal chamber 5 through a pipe. A suction fan 4 is fixedly connected between the pre-separation device 3 and the dust removal chamber 5 to convey the separated fine dust to the dust removal chamber 5 for further capture and classification. A filter media barrel 61 is fixedly connected to the bottom of the cyclone separator 6. A conveying pipe 7 is fixedly connected to the surface of the filter media barrel 61 for conveying the separated fine dust to the dust collection chamber 5 for capture and classification. A filter screen 62 is installed at the connection between the filter media barrel 61 and the conveying pipe 7. The end of the conveying pipe 7 away from the filter media barrel 61 passes through the dust collection chamber 5 and is fixedly connected to a dust collection fan 71 for filtering and conveying the fine dust particles separated by the cyclone separator 6. A sealing cover is fixedly connected to the bottom of the filter media barrel 61 for collecting and periodically discharging the separated fine powder particles. A fixed frame 10 is fixedly connected to the hopper 1 and the dust collection chamber 5 respectively. A pre-separation device 3 passes through the interior of the fixed frame 10. A drying cylinder 8 is located on the bottom surface of the fixed frame 10 for convenient dust conveying and discharge.

[0024] Working principle: When using this silicon carbide micro powder pre-classification spray dust removal device, the screw conveyor 9 inside the conveying pipe 2 conveys the silicon carbide micro powder raw material in the hopper 1 to the pre-separation device 3. The dust removal fan separates the large particles of micro powder into the collection hopper. At the same time, the suction fan 4 conveys the separated small particles of micro powder from the filter screen 31 to the cyclone separator 6. The filter screen 31 prevents large particles of micro powder from being sucked into the cyclone separator 6 by the suction fan 4. The centrifugal force generated by the airflow rotation separates the coarser particles of micro powder and they enter the filter media tank 61. Filter screen 2 62 also prevents larger particles from being sucked into dust collection chamber 5 by dust collector fan 2 71. At the same time, the finer particles intercepted are conveyed to dust collection chamber 5 by dust collector fan 2 71 through conveying pipe 7. In dust collection chamber 5, wet dust removal is carried out by the collision and adsorption of droplets and dust particles through spray device 54, thereby improving the collection effect of fine particles. Then, the wet fine particles flow into collection tank 51 through inclined plate 53, and then are guided into drying cylinder 8 through guide pipe 52. After drying, the powder is collected and packaged to prepare for subsequent use.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A spray dedusting device for pre-classification of silicon carbide micro-powder, characterized in that, include: The container consists of a hopper (1), a pre-separation device (3), a dust removal chamber (5), and a drying cylinder (8). The pre-separation device (3) is composed of a feed inlet, a dust removal fan, a filter screen (31), and a collection hopper. The dust removal chamber (5) is composed of a collection trough (51), a guide pipe (52), an inclined plate (53), and a spray device (54). A cyclone separator (6) is fixedly connected inside the dust removal chamber (5). The height of the collection trough (51) is lower than that of the inclined plate (53). The end of the guide pipe (52) away from the collection trough (51) is fixedly connected to the drying cylinder (8). The spray device (54) is located on the inner top surface of the dust removal chamber (5). The spray device (54) is composed of a spray pipe and a spray head.

2. The device for pre-classification of silicon carbide micro-powder according to claim 1, characterized in that, A conveying pipe (2) is fixedly connected between the side of the hopper (1) and the pre-separation device (3), and a screw conveyor (9) is rotatably connected inside the conveying pipe (2).

3. The device for pre-classification of silicon carbide micro-powder according to claim 1, characterized in that, The pre-separation device (3) has a fixed feed inlet on its side that is connected to the screw conveyor (9), and the feed inlet is positioned opposite to the filter screen (31).

4. The device for pre-classification of silicon carbide micro-powder according to claim 1, characterized in that, The pre-separation device (3) is connected to the dust removal chamber (5) by a pipe, and a suction fan (4) is fixedly connected between the pre-separation device (3) and the dust removal chamber (5).

5. The device for pre-classification of silicon carbide micro-powder according to claim 1, characterized in that, The bottom surface of the cyclone separator (6) is fixedly connected to a filter media barrel (61), and the surface of the filter media barrel (61) is fixedly connected to a conveying pipe (7).

6. The device for pre-classification of silicon carbide micro-powder according to claim 5, characterized in that, A filter screen (62) is provided at the connection between the filter media barrel (61) and the conveying pipe (7). The end of the conveying pipe (7) away from the filter media barrel (61) passes through the dust removal chamber (5) and is fixedly connected to the dust removal fan (71).

7. The device for pre-classification of silicon carbide micro-powder according to claim 5, characterized in that, A sealing cap is fixedly connected to the bottom of the filter media bucket (61).

8. The device for pre-classification of silicon carbide micro-powder according to claim 1, characterized in that, The silo (1) and dust removal chamber (5) are respectively fixedly connected to a fixed frame (10), the pre-separation device (3) penetrates the interior of the fixed frame (10), and the drying cylinder (8) is located on the bottom surface of the fixed frame (10).

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