Silica powder impurity removal equipment
By introducing electromagnets and stirring devices into the silicon micropowder impurity removal equipment, combined with the design of cleaning brushes and screening boards, the problem of difficulty in efficiently cleaning iron impurities in existing equipment is solved, and the automation and efficient production of the silicon micropowder impurity removal process is achieved.
Patent Information
- Application Number
- CN202422412176.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-07
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-07
AI Technical Summary
The existing silicon micro-powder impurity removal equipment is difficult to efficiently clean iron impurities after long-term operation, which affects production efficiency, and it is complicated to manually clean large-grain silicon micro-powder on the filter.
The electromagnet and agitator are used to set up an impurity removal device, and the electromagnet is used to absorb iron filing impurities, and the automatic cleaning of impurities is achieved through the cooperation of the cleaning brush and the driving cylinder. Combined with the design of the screening plate and the oscillator, the timely collection of impurities is achieved.
It realizes efficient automation of the silicon micro powder removal process, reduces equipment downtime, improves production efficiency and cleaning convenience.
Smart Images
Figure CN223249524U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of silicon micropowder production, and particularly relates to silicon micropowder impurity removal equipment. Background Art
[0002] Silicon micropowder is a kind of inorganic non-metallic material with extremely wide applications. It has excellent dielectric properties, low thermal expansion coefficient, high thermal conductivity and good wear resistance.
[0003] During the production process, silicon micropowder often contains impurities, especially conductive impurities such as iron filings, which directly affect the quality of silicon carbide micropowder. Existing silicon micropowder impurity removal equipment typically uses magnetic separation to remove iron impurities from silicon micropowder. After a period of impurity removal, the iron impurities accumulate in the magnetic separation equipment and are difficult to clean directly. The equipment needs to be suspended for impurity cleaning, which takes a long time and affects the efficiency of silicon micropowder impurity removal. Some silicon micropowders are screened using filters. During the screening and impurity removal process, the large particles of silicon micropowder remaining on the top of the filter require manual operation, which is a cumbersome process. Utility Model Content
[0004] The purpose of the utility model is to provide a silicon micropowder impurity removal device, which can effectively remove impurities in the silicon micropowder and clean the impurities in time, thereby improving production efficiency.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a silicon micropowder impurity removal device, comprising a box body, characterized in that a feed hopper is provided on the top plate of the box body, a first discharge port is provided at the bottom, a stirring device is provided in the box body, a screening plate is provided below the stirring device, electromagnets are respectively provided on both side walls of the box body, a cleaning device is provided on the electromagnet, the cleaning device comprises a cleaning brush, the cleaning brush is provided on the electromagnet, the cleaning brush is connected to a driving cylinder for controlling its up and down movement, the driving cylinder is provided on the top plate of the box body, and a telescopic channel for the lifting rod on the driving cylinder is provided on the top plate.
[0006] As a further solution of the present invention: the electromagnets are flatly embedded in the side walls on both sides of the box, and the two electromagnets are rectangular in shape and of equal size. The electromagnets are electrically connected to the outside of the box. The stirring device includes a rotating shaft and a drive motor. The rotating shaft is arranged parallel to the direction of the two electromagnets and is arranged on the central axis of the box. One side of the rotating shaft is connected to the drive motor outside the box, and a plurality of stirring paddles are evenly arranged along the circumference of the rotating shaft. By arranging the electromagnets on the side walls of the box in conjunction with the stirring device, the electromagnets can smoothly absorb iron filings and other impurities in the silicon micropowder when the silicon micropowder is uniformly dispersed and stirred in the box.
[0007] As a further solution of the present invention: the cleaning brush includes a cleaning brush head and a cleaning brush handle, and the size of the cleaning brush head is consistent with the depth of the electromagnet embedded in the side wall of the box. The cleaning brush handle is detachably connected to the end of the lifting rod on the driving cylinder by a bolt. Through the setting of the cleaning device, when the iron filings impurities in the silicon micropowder are adsorbed on the electromagnet, the external power supply of the electromagnet is turned off, and some iron filings will fall onto the screening plate, but some will still remain on the electromagnet. At this time, the cleaning brush can be driven up and down by the driving cylinder to remove the remaining iron filings impurities. There is no need to pause the equipment for cleaning, which can improve work efficiency.
[0008] As a further embodiment of the present invention, the screening plate is tilted within the housing, with a second discharge port provided on the sidewall of the housing at the lower end of the screening plate. An oscillator is provided on the screening plate. A baffle of a suitable size is provided at the second discharge port, the lower end of the baffle being hinged to the lower end of the second discharge port. A movable latch is provided on the housing above the second discharge port to secure the baffle. By combining the tilted screening plate with the structural arrangement of the second discharge port and vibrating the screening plate with the oscillator, impurities on the screening plate can be collected as waste.
[0009] As a further solution of the present invention, a guide plate is provided at the bottom of the box body, and the guide plate forms a first discharge port. The provision of the guide plate facilitates the collection of the silicon micropowder after the impurities are removed.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] By installing an electromagnet on the side wall of the box in conjunction with the stirring device, the silicon micropowder is dispersed and stirred at a uniform speed in the box, and the electromagnet can smoothly absorb the iron filings and other impurities in the silicon micropowder. Through the setting of the cleaning device, when the iron filings and other impurities in the silicon micropowder are adsorbed on the electromagnet, the external power supply of the electromagnet is turned off, and some iron filings will fall onto the screening plate, but some will still remain on the electromagnet. At this time, the cleaning brush can be driven up and down by the driving cylinder to remove the remaining iron filings and impurities, without having to stop the equipment for cleaning, which can improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the external structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the utility model;
[0014] Figure 3 This is a schematic structural diagram of the cleaning device of the utility model;
[0015] Figure 4 This is a schematic diagram of the screening plate structure of the utility model;
[0016] In the figure: 1. Box body; 2. Feed hopper; 3. First discharge port; 4. Screening plate; 5. Electromagnet; 6. Driving cylinder; 7. Cleaning brush; 8. Cleaning brush head; 9. Cleaning brush handle; 10. Rotating shaft; 11. Driving motor; 12. Agitator; 13. Second discharge port; 14. Oscillator; 15. Baffle; 16. Movable buckle; 17. Guide plate. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It is obvious that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] See also Figure 1-Figure 4 As shown, the utility model provides the following technical solutions:
[0019] A silicon micropowder impurity removal device includes a box body 1, a feed hopper 2 is provided on the top plate of the box body 1, a first discharge port 3 is provided at the bottom, a stirring device is provided in the box body 1, a screening plate 4 is provided below the stirring device, and electromagnets 5 are respectively provided on both side walls of the box body 1. A cleaning device is provided on the electromagnet 5, and the cleaning device includes a cleaning brush 7, which is tightly arranged on the electromagnet 5. The cleaning brush 7 is connected to a driving cylinder 6 for controlling its up and down movement. The driving cylinder 6 is provided on the top plate of the box body 1, and a telescopic channel for the lifting rod on the driving cylinder 6 is provided on the top plate.
[0020] The electromagnets 5 are flatly embedded in the side walls on both sides of the box 1. The two electromagnets 5 are in the shape of rectangles of the same size. The electromagnets 5 are electrically connected to the outside of the box 1. The stirring device includes a rotating shaft 10 and a drive motor 11. The rotating shaft 10 is arranged parallel to the direction of the two electromagnets 5. The rotating shaft 10 is arranged on the central axis of the box 1. One side of the rotating shaft 10 is connected to the drive motor 11 outside the box 1. A number of stirring paddles 12 are evenly arranged along the circumference of the rotating shaft 10 along its length. By arranging the electromagnets 5 on the side walls of the box 1 in conjunction with the use of the stirring device, when the silicon micropowder is uniformly dispersed and stirred in the box 1, the electromagnets 5 can smoothly absorb the iron filings and other impurities in the silicon micropowder.
[0021] The cleaning brush 7 includes a cleaning brush head 8 and a cleaning brush handle 9. The size of the cleaning brush head 8 is consistent with the depth of the electromagnet 5 embedded in the side wall of the box body 1. The cleaning brush handle 9 is detachably connected to the end of the lifting rod on the driving cylinder 6 by a bolt. Through the setting of the cleaning device, when the iron filings impurities in the silicon micropowder are adsorbed on the electromagnet 5, the external power supply of the electromagnet 5 is turned off, and some iron filings will fall onto the screening plate 4, but some will still remain on the electromagnet 5. At this time, the cleaning brush 7 can be driven up and down by the driving cylinder 6 to remove the remaining iron filings impurities. There is no need to pause the equipment for cleaning, which can improve work efficiency.
[0022] The screening plate 4 is tilted and arranged in the housing 1. A second discharge port 13 is provided on the side wall of the housing 1 at the lower end of the screening plate 4. An oscillator 14 is provided on the screening plate 4. A baffle 15 of a size matching the second discharge port 13 is provided at the second discharge port 13. The lower end of the baffle 15 is hinged to the lower end of the second discharge port 13. A movable buckle 16 is provided on the housing 1 above the second discharge port 13 to fix the baffle 15. By adjusting the tilt of the screening plate 4 in conjunction with the structural arrangement of the second discharge port 13 and vibrating the screening plate 4 with the oscillator 14, impurities on the screening plate 4 can be collected as waste.
[0023] A guide plate 17 is provided at the bottom of the box body 1, and the guide plate 17 forms the first discharge port 3. The guide plate 17 can be provided to facilitate the collection of the silicon powder after the impurities are removed.
[0024] During use, the silicon micropowder raw material is fed from the feed hopper 2 into the interior of the box 1, and the driving motor 11 of the stirring device is turned on to break up and stir the silicon micropowder inside the box 1. At the same time, the external power supply of the electromagnet 5 is turned on, and the iron filings impurities inside the silicon micropowder will be adsorbed on the surface of the electromagnet 5. The qualified silicon micropowder is screened by the screening plate 4 and then discharged and collected through the first discharge port 3. When there are more iron filings adsorbed on the electromagnet 5, the external power supply of the electromagnet 5 is turned off, and some of the iron filings will fall onto the screening plate 4. There will still be residues on the electromagnet 5. The driving cylinder 6 on the top plate of the box 1 can be controlled to drive the cleaning brush 7 to move up and down, so that the residual iron filings impurities on the electromagnet 5 can be removed to the screening plate 4. The electromagnet 5 is clean and convenient for subsequent use, so as to achieve timely adsorption and cleaning, and improve work efficiency. The iron filings scattered on the screening plate 4 are larger than the particle size of the silicon powder, so they can only be scattered on the screening plate 4. When there are too many impurities on the screening plate 4, the movable snap 16 on the side wall of the box 1 is opened to open the baffle 15. The screening plate 4 is vibrated by the oscillator 14 to collect the impurities on the screening plate 4 from the second discharge port 13.
[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may 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 silicon micropowder impurity removal device, characterized by: The invention comprises a box body (1), a feeding hopper (2) is provided on the top plate of the box body (1), a first discharging port (3) is provided at the bottom, a stirring device is provided in the box body (1), a screening plate (4) is provided below the stirring device, electromagnets (5) are provided on both side walls of the box body (1), a cleaning device is provided on the electromagnets (5), the cleaning device comprises a cleaning brush (7), the cleaning brush (7) is provided on the electromagnets (5), the cleaning brush (7) is connected to a driving cylinder (6) for controlling its up and down movement, the driving cylinder (6) is provided on the top plate of the box body (1), and a telescopic channel for a lifting rod on the driving cylinder (6) is provided on the top plate.
2. A silicon micropowder impurity removal device according to claim 1, characterized in that: The electromagnets (5) are flatly embedded on the side walls of both sides of the box (1). The two electromagnets (5) are in the shape of rectangles with the same size. The electromagnets (5) are electrically connected to the outside of the box (1).
3. The silicon micropowder impurity removal equipment according to claim 1, characterized in that: The cleaning brush (7) comprises a cleaning brush head (8) and a cleaning brush handle (9), and the size of the cleaning brush head (8) is consistent with the depth of the electromagnet (5) embedded in the side wall of the box (1).
4. The silicon micropowder impurity removal device according to claim 3, characterized in that: The cleaning brush handle (9) is detachably connected to the end of the lifting rod on the driving cylinder (6) via bolts.
5. The silicon micropowder impurity removal equipment according to claim 1, characterized in that: The stirring device comprises a rotating shaft (10) and a driving motor (11). The rotating shaft (10) is arranged parallel to the direction of the two electromagnets (5). The rotating shaft (10) is arranged on the central axis of the box (1). One side of the rotating shaft (10) is connected to the driving motor (11) outside the box (1). A plurality of stirring paddles (12) are evenly arranged along the circumference of the rotating shaft (10) in the length direction.
6. The silicon micropowder impurity removal equipment according to claim 1, characterized in that: The screening plate (4) is arranged obliquely in the box body (1), and a second discharge port (13) is provided on the side wall of the box body (1) at the lower end of the screening plate (4).
7. The silicon micropowder impurity removal device according to claim 6, characterized in that: An oscillator (14) is provided on the screening plate (4).
8. The silicon micropowder impurity removal device according to claim 6, characterized in that: A baffle (15) of a size matching the second discharge port (13) is provided at the second discharge port (13), the lower end of the baffle (15) is hinged to the lower end of the second discharge port (13), and a movable buckle (16) for fixing the baffle (15) is provided on the box body (1) above the second discharge port (13).
9. The silicon micropowder impurity removal device according to claim 1, characterized in that: A guide plate (17) is provided at the bottom of the box body (1), and the guide plate (17) forms a first discharge port (3).