Silica powder negative pressure collecting device
By using a spray device in the negative pressure collection device of silicon powder to wet and bring the silicon powder to agglomerate the blocks, and then using the screening structure to screen out the blocked silicon powder, the problem of silicon powder particles passing through the filter in traditional devices is solved, and the problem of silicon powder particles passing through the filter is improved. Filtration efficiency is reduced and filter replacement frequency is reduced.
Patent Information
- Application Number
- CN202421266211.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-05
AI Technical Summary
When traditional negative pressure collection devices treat silicon micropowder, particles are prone to pass through the mesh or gaps of the filter mesh or filter element, resulting in some particles not being completely adsorbed, and the filter mesh or filter element needs to be replaced regularly, affecting the filtration efficiency.
A negative pressure collection device for silicon micropowder is designed to wet the silicon micropowder in the air through the spraying device to make it clumps, and then the screening structure is used to screen out the clumped silicon micropowder to achieve more efficient filtration.
Through wetting and screening, the silicon powder in the air can be effectively absorbed, filtration efficiency can be improved, and the need to regularly replace the filter screen or filter element is avoided.
Smart Images
Figure CN222433530U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of silicon micropowder collection, in particular to a silicon micropowder negative pressure collection device. Background Art
[0002] Silica powder is a fine silicon powder that is commonly used in various industrial and commercial applications. It is obtained by processing silicon material into powder form, with a fine particle size and a large surface area. Due to its special properties, silica powder has a wide range of uses in many fields. As a versatile material, its wide range of applications makes it an indispensable part of industrial production.
[0003] The existing technology has the following deficiencies: in some specific industrial production processes, a large amount of silicon micropowder dust may be generated. At this time, a negative pressure collection device is needed to collect the silicon micropowder to prevent it from spreading into the environment and causing pollution. Since the particles of silicon micropowder are usually very small, with a size between nanometers and micrometers, for the filter screen or filter element of the traditional negative pressure collection device, some particles may pass through the mesh of the filter screen or the gap of the filter element and cannot be completely adsorbed. In addition, the traditional negative pressure collection device needs to replace the filter screen or filter element regularly. Otherwise, as the use time increases, the filter screen or filter element may accumulate more particulate matter, greatly affecting the filtration efficiency of the silicon micropowder.
[0004] Therefore, it is necessary to invent a silicon micropowder negative pressure collection device. Utility Model Content
[0005] To this end, the utility model provides a silicon micropowder negative pressure collection device, which draws air mixed with silicon micropowder into an outer sleeve, wets the silicon micropowder in the air through a spray device to make it agglomerate, and then uses a screening structure to screen out the agglomerated silicon micropowder, so as to solve the problem that since the particles of silicon micropowder are usually very small, with a size between nanometer level and micrometer level, for the filter screen or filter element of the traditional negative pressure collection device, some particles may pass through the mesh of the filter screen or the gap of the filter element and cannot be completely adsorbed, and the traditional negative pressure collection device needs to replace the filter screen or filter element regularly, otherwise as the use time increases, the filter screen or filter element may accumulate more particulate matter, greatly affecting the filtration efficiency of the silicon micropowder.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure collection device for silicon micropowder, comprising an outer sleeve, the top surface of the outer sleeve is set to be an opening, the bottom surface of the outer sleeve is sealed, a collection box is inserted and installed on the lower side of the outer wall of the outer sleeve, an air outlet is arranged on the upper side of the outer wall of the outer sleeve, a top plate is fixedly installed at the opening of the top surface of the outer sleeve, an inner sleeve is inserted and installed in the center of the top plate, the lower end of the inner sleeve extends downward to the middle of the inner wall of the outer sleeve, a spray device is installed at the bottom of the inner sleeve, the spray device can wet the silicon micropowder in the air, and a screening structure is arranged in the collection box, and the screening structure can screen out the silicon micropowder that is agglomerated.
[0007] Preferably, the spray device comprises a hole plate, which is fixedly mounted at the lower end of the inner sleeve, with a plurality of circular holes formed on the surface of the hole plate, and a spray head is inserted and mounted in the non-hole area of the hole plate.
[0008] Preferably, the spray device includes a water tank, which is fixedly mounted on the side of the outer wall of the outer sleeve away from the collecting box, and a water pipe is inserted into the top surface of the water tank. The end of the water pipe away from the water tank passes through the outer sleeve and the inner sleeve in sequence and is connected to the spray head.
[0009] Preferably, the screening structure includes a grid and a second screen, the upper and lower sides of the collection box are set as openings, the grid is fixedly installed on the inner wall of the opening on the top surface of the collection box, and the second screen is fixedly installed on the inner wall of the opening on the bottom surface of the collection box.
[0010] Preferably, an opening is provided on a side of the bottom inner wall of the outer sleeve close to the water tank, the bottom inner wall of the outer sleeve is connected with the water tank through the opening, and a filter is fixedly installed on the inner wall of the opening at the bottom inner wall of the outer sleeve.
[0011] Preferably, a first screen is fixedly mounted on the inner wall of the opening on the top surface of the inner sleeve, and a fan is fixedly mounted on the inner wall of the inner sleeve.
[0012] Preferably, a condenser is embedded in the inner wall of the outer sleeve below the air outlet, and the condenser is arranged around the inner sleeve and the outer sleeve.
[0013] Preferably, a condenser is provided on one side of the outer wall of the outer sleeve, and both ends of the condenser tube penetrate the inner wall of the outer sleeve and extend into the condenser.
[0014] The beneficial effects of the utility model are as follows: air mixed with silicon micropowder is drawn into the outer sleeve, the silicon micropowder in the air is wetted by a spray device to make it agglomerate, and then the agglomerated silicon micropowder can be screened out by a screening structure, so as to achieve the effect of further completely absorbing the silicon micropowder in the air through the sprayed water mist, and there is no need to regularly replace the filter screen or filter element, thereby improving the filtering efficiency of the silicon micropowder. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view of a negative pressure collection device for silicon micropowder provided by the utility model;
[0016] Figure 2 This is a front view of a negative pressure collection device for silicon micropowder provided by the utility model;
[0017] Figure 3 A cross-sectional view of a negative pressure collection device for silicon micropowder provided by the utility model;
[0018] Figure 4 A cross-sectional view of a negative pressure collection device for silicon micropowder provided by the utility model;
[0019] Figure 5 The utility model provides a schematic diagram of the spray system structure of a silicon micropowder negative pressure collection device.
[0020] In the figure: outer sleeve 11, air outlet 12, top plate 13, inner sleeve 14, first screen 15, fan 16, hole plate 17, sprinkler head 18, water pipe 19, water tank 20, collection box 21, grid 22, second screen 23, filter 24, condenser 25, condenser 26. DETAILED DESCRIPTION
[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0022] Example 1
[0023] like Figure 1 and Figure 3 As shown, a silicon micropowder negative pressure collection device in an embodiment of the first aspect of the utility model comprises an outer sleeve 11, the top surface of the outer sleeve 11 is set to be an opening, the bottom surface of the outer sleeve 11 is sealed, a collecting box 21 is inserted and installed on the lower side of the outer wall of the outer sleeve 11, an air outlet 12 is arranged on the upper side of the outer wall of the outer sleeve 11, a top plate 13 is fixedly installed at the opening of the top surface of the outer sleeve 11, an inner sleeve 14 is inserted and installed in the center of the top plate 13, the lower end of the inner sleeve 14 extends downward to the middle part of the inner wall of the outer sleeve 11, a spray device is installed at the bottom of the inner sleeve 14, the spray device can wet the silicon micropowder in the air, and a screening structure is arranged in the collecting box 21, and the screening structure can screen out the silicon micropowder that is agglomerated.
[0024] In the above embodiment, it should be noted that the collecting box 21 can be pulled out or inserted into the outer sleeve 11, and the air mixed with silicon micropowder is drawn into the outer sleeve 11 along the inner sleeve 14, and the silicon micropowder in the air is wetted by a spray device to make it agglomerate, and then the agglomerated silicon micropowder can be screened out by a screening structure, so as to achieve the effect of further completely adsorbing the silicon micropowder in the air through the sprayed water mist, and there is no need to regularly replace the filter screen or filter element, thereby improving the filtration efficiency of the silicon micropowder, and the collected silicon micropowder can be obtained by pulling out the outer sleeve 11, and the air after collecting the silicon micropowder will be discharged to the outside of the outer sleeve 11 from the air outlet 12.
[0025] Example 2
[0026] like Figure 3-Figure 5 As shown, a negative pressure collection device for silicon micropowder includes all the contents of Example 1. In addition, the spray device includes a hole plate 17, which is fixedly installed at the lower end of the inner sleeve 14, and a plurality of circular holes are opened on the surface of the hole plate 17. A spray head 18 is inserted and installed in the non-opened area of the hole plate 17. The spray device includes a water tank 20, which is fixedly installed on the side of the outer wall of the outer sleeve 11 away from the collection box 21, and a water pipe 19 is inserted into the top surface of the water tank 20. The end of the water pipe 19 away from the water tank 20 passes through the outer sleeve 11 and the inner sleeve 14 in sequence and is connected to the spray head 18.
[0027] In the above embodiment, it should be noted that a water pump is provided in the water tank 20. When the air mixed with silicon micropowder is drawn into the outer sleeve 11 along the inner sleeve 14 through the hole plate 17, the water pump in the water tank 20 is started. The water pump pumps the water in the water tank 20 into the water pipe 19 and transports it to the sprinkler head 18 to spray water mist, which wets the air entering the outer sleeve 11, so as to achieve the effect of using the water mist to absorb the silicon micropowder in the air and make it agglomerate.
[0028] Example 3
[0029] like Figure 3-Figure 5 As shown, a negative pressure collection device for silicon micropowder includes all the contents of Example 2. In addition, the screening structure includes a grid 22 and a second screen 23. The upper and lower sides of the collection box 21 are set as openings. The grid 22 is fixedly installed on the inner wall of the opening on the top surface of the collection box 21. The second screen 23 is fixedly installed on the inner wall of the opening on the bottom surface of the collection box 21. An opening is provided on the side of the bottom of the inner wall of the outer sleeve 11 close to the water tank 20. The bottom of the inner wall of the outer sleeve 11 is connected with the water tank 20 through the opening, and a filter 24 is fixedly installed on the inner wall of the bottom opening of the inner wall of the outer sleeve 11.
[0030] In the above embodiment, it should be noted that the grids 22 are spaced relatively large, and the agglomerated silicon micropowder can pass through the grids 22 or adhere to the surface of the grids 22. The second screen 23 is relatively fine, and the second screen 23 has the function of screening out excess moisture and intercepting the agglomerated silicon micropowder. The agglomerated silicon micropowder is easy to adhere to the grid 22 after encountering the grid 22, and is continuously accumulated on the surface of the grid 22. The accumulated large silicon micropowder clumps will fall into the collection box 21 and be intercepted by the fine second screen 23. The moisture screened out by the second screen 23 will fall into the bottom of the inner wall of the outer sleeve 11, and after being filtered by the filter 24, it will enter the water tank 20 again and enter the next spray cycle.
[0031] Example 4
[0032] like Figure 1-Figure 4 As shown, a negative pressure collection device for silicon micropowder includes all the contents of Example 3. In addition, a first screen 15 is fixedly installed on the inner wall of the top opening of the inner sleeve 14, a fan 16 is fixedly installed on the inner wall of the inner sleeve 14, a condenser 25 is embedded in the inner wall of the outer sleeve 11 below the air outlet 12, and the condenser 25 is arranged between the inner sleeve 14 and the outer sleeve 11. A condenser 26 is arranged on one side of the outer wall of the outer sleeve 11, and both ends of the condenser 25 pass through the inner wall of the outer sleeve 11 and extend into the condenser 26.
[0033] In the above embodiment, it should be noted that the first screen 15 has the function of protecting the fan 16. The first screen 15 and the second screen 23 are both relatively fine screens, but because the silicon micropowder in the air is not agglomerated, the silicon micropowder can pass through the first screen 15. By starting the fan 16, the effect of drawing external air into the inner sleeve 14 is achieved. Coolant is injected into the condenser 25. The condenser 26 is an evaporative condenser, which belongs to the prior art. The coolant in the condenser 25 is circulated through the condenser 26 to reduce the temperature of the condenser 25. The condenser 25 can cool the air that is about to be discharged from the air outlet 12, so that the discharged air remains dry, and the condensed water will flow along the inner wall of the outer sleeve 11 into the bottom of the outer sleeve 11.
[0034] The use process of the utility model is as follows: a technician in this field starts to draw external air into the inner sleeve 14, and the air mixed with silicon micropowder is drawn into the outer sleeve 11 along the inner sleeve 14 through the hole plate 17, and the water pump in the water tank 20 is started. The water pump pumps the water in the water tank 20 into the water pipe 19 and transports it to the sprinkler head 18 to spray water mist, wet the air entering the outer sleeve 11, and use the water mist to absorb the silicon micropowder in the air and make it agglomerate. The agglomerated silicon micropowder is easy to adhere to the grid 22 after encountering the grid 22, and is continuously accumulated on the surface of the grid 22. The accumulated large silicon micropowder clumps will fall into the collection box 21 and be intercepted by the fine second screen 23. The moisture sifted out by the second screen 23 will fall into the bottom of the inner wall of the outer sleeve 11, and after being filtered by the filter 24, it enters the water tank 20 again. Finally, the collection box 21 is drawn out, and the collected silicon micropowder is dried to complete the collection of silicon micropowder.
[0035] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.
Claims
1. A negative pressure collection device for silicon micropowder, comprising an outer sleeve (11), wherein the top surface of the outer sleeve (11) is set to be open, and the bottom surface of the outer sleeve (11) is sealed, characterized in that: A collecting box (21) is inserted and installed on the lower side of the outer wall of the outer sleeve (11); an air outlet (12) is provided on the upper side of the outer wall of the outer sleeve (11); a top plate (13) is fixedly installed at the opening of the top surface of the outer sleeve (11); an inner sleeve (14) is inserted and installed in the center of the top plate (13); the lower end of the inner sleeve (14) extends downward to the middle of the inner wall of the outer sleeve (11); a spray device is installed at the bottom of the inner sleeve (14); the spray device can wet the silicon micropowder in the air; a screening structure is provided in the collecting box (21); the screening structure can screen out the silicon micropowder that is clumped together.
2. A negative pressure silicon powder collecting device according to claim 1, characterized in that: The spray device comprises a hole plate (17), which is fixedly mounted on the lower end of the inner sleeve (14), with a plurality of circular holes opened on the surface of the hole plate (17), and a spray head (18) is inserted and installed in the non-opened area of the hole plate (17).
3. A negative pressure collection device for silicon micropowder according to claim 2, characterized in that: The spray device comprises a water tank (20), wherein the water tank (20) is fixedly mounted on a side of the outer wall of the outer sleeve (11) away from the collecting box (21), a water pipe (19) is inserted into the top surface of the water tank (20), and an end of the water pipe (19) away from the water tank (20) passes through the outer sleeve (11) and the inner sleeve (14) in sequence and is connected to the spray head (18).
4. A negative pressure collection device for silicon micropowder according to claim 3, characterized in that: The screening structure comprises a grid (22) and a second screen (23); the upper and lower sides of the collection box (21) are both arranged to be openings; the grid (22) is fixedly mounted on the inner wall of the opening on the top surface of the collection box (21); and the second screen (23) is fixedly mounted on the inner wall of the opening on the bottom surface of the collection box (21).
5. A negative pressure collection device for silicon micropowder according to claim 4, characterized in that: An opening is provided on one side of the bottom of the inner wall of the outer sleeve (11) close to the water tank (20); the bottom of the inner wall of the outer sleeve (11) is connected to the water tank (20) via the opening; and a filter screen (24) is fixedly mounted on the inner wall of the bottom opening of the inner wall of the outer sleeve (11).
6. A negative pressure collection device for silicon micropowder according to claim 1, characterized in that: A first screen (15) is fixedly mounted on the inner wall of the top opening of the inner sleeve (14), and a fan (16) is fixedly mounted on the inner wall of the inner sleeve (14).
7. A negative pressure collection device for silicon micropowder according to claim 1, characterized in that: A condenser tube (25) is embedded and installed in the inner wall of the outer sleeve (11) below the air outlet hole (12), and the condenser tube (25) is arranged around the inner sleeve (14) and the outer sleeve (11).
8. A negative pressure collection device for silicon micropowder according to claim 7, characterized in that: A condenser (26) is provided on one side of the outer wall of the outer sleeve (11), and both ends of the condenser tube (25) penetrate the inner wall of the outer sleeve (11) and extend into the condenser (26).