Automatic iron removal device for silica powder

Abstract

The utility model provides an automatic deironing device for silica powder, which relates to the technical field of silica powder processing, and comprises a deironing box, the top of the deironing box is fixedly connected with a feed hopper, the bottom end of the deironing box is fixedly connected with a discharge port, the front side of the deironing box is fixedly provided with four driving motors, and the four driving motors are fixedly connected with the discharge port. And an output shaft of the driving motor penetrates into the iron removal box and is fixedly connected with a magnetic roller. When the magnetic roller rotates to the bottom and is in contact with the rubber scraping strip at the top of the U-shaped chip removal plate, the rubber scraping strip can continuously scrape scrap iron adsorbed on the magnetic roller, and the scrap iron falls into the U-shaped chip removal plate and enters the scrap iron collecting box through the communicating pipe on the rear side along the U-shaped chip removal plate. Through mutual cooperation of the magnetic roller, the U-shaped chip removal plate, the rubber scraping strip, the communicating pipe and the iron chip collecting box, automatic cleaning of iron chips is achieved, the situation that the iron chips are accumulated on the magnetic roller to affect the magnetic field intensity is avoided, the manual cleaning frequency is reduced, and the labor intensity and the production cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of silicon micropowder processing technology, and in particular to an automatic iron removal device for silicon micropowder. Background Technology

[0002] Silica powder is an inorganic non-metallic mineral powder produced from natural quartz or fused quartz through crushing, grinding, and grading processes. It is characterized by fine particle size, stable chemical properties, high hardness, and good insulation, and is widely used in industries such as electronic packaging, ceramics, coatings, and rubber. During the production of silica powder, iron impurities are inevitably introduced from the raw quartz and processing equipment. The presence of these iron impurities severely affects the quality and performance of silica powder, such as reducing its insulation, affecting the quality of electronic packaging products, and altering the color and mechanical properties of ceramic products. Therefore, it is necessary to use an iron removal device to treat silica powder to improve product quality. Iron removal devices utilize the attraction of a magnetic field to ferromagnetic materials to separate iron impurities from silica powder. Common iron removal devices include magnetic separators and magnetic drums.

[0003] The existing automatic iron removal device for silicon micropowder has the following shortcomings:

[0004] In traditional iron removal devices, magnets are usually fixed in place. As the amount of iron impurities adsorbed increases, an iron impurity accumulation layer forms on the magnet surface, weakening the magnetic field strength. This makes it difficult for subsequent iron impurities to be adsorbed, significantly reducing iron removal efficiency. Furthermore, frequent manual cleaning is required, increasing labor intensity and production costs. In addition, in the silicon powder feeding stage of existing devices, the silicon powder falls directly from the feed inlet, easily accumulating in a certain area of ​​the magnet, resulting in uneven distribution and some silicon powder failing to make sufficient contact with the magnet. At the same time, the silicon powder has a single flow path, and relying on only one magnetic treatment makes it difficult to ensure that all iron impurities are completely separated, resulting in incomplete iron removal and seriously affecting the final quality of the silicon powder. Utility Model Content

[0005] This invention proposes an automatic iron removal device for silicon micropowder. By setting up a magnetic roller structure that can automatically clean iron filings and a feeding structure that can evenly disperse and fall silicon micropowder, it achieves efficient automatic iron removal, reduces the frequency of manual cleaning, and improves the iron removal effect and silicon micropowder quality, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic iron removal device for silicon micro powder, comprising an iron removal box, with support legs fixedly connected to each of the four corners of the iron removal box, a feed hopper fixedly connected to the top of the iron removal box, a discharge port fixedly connected to the bottom of the iron removal box, and four drive motors fixedly installed on the front side of the iron removal box, the output shaft of the drive motor penetrating into the interior of the iron removal box and fixedly connected to a magnetic roller.

[0007] The inner wall of the iron removal box is fixedly connected to four U-shaped chip removal plates, which are respectively set at the bottom of the magnetic roller. A rubber scraper is fixedly connected to the top of the U-shaped chip removal plate, and the upper surface of the rubber scraper is in contact with the outer surface of the magnetic roller. Four connecting pipes are fixedly connected to the rear side of the outer surface of the iron removal box. The front end of the connecting pipe is connected to the rear end of the U-shaped chip removal plate. An iron chip collection box is fixedly connected to the bottom of the rear surface of the iron removal box.

[0008] Preferably, a conical guide plate is fixedly connected to the top center of the inner wall of the iron removal box, wherein two magnetic rollers are respectively rotatably connected to the bottom left and right sides of the conical guide plate.

[0009] Preferably, inclined guide plates are fixedly connected to the middle of the left and right sides of the inner wall of the iron removal box, and the other two magnetic rollers are rotatably connected to the bottom of the two inclined guide plates.

[0010] Preferably, the bottom end of the feed hopper is aligned with the top of the conical guide plate, a connecting groove is provided at the bottom of the inner surface of the feed hopper, a sliding guide plate is slidably connected to the inner surface of the connecting groove, and a plurality of vertically penetrating discharge holes are provided on the upper surface of the sliding guide plate.

[0011] Preferably, the rear end of the sliding guide plate extends through to the rear side of the iron removal box and is fixedly connected to a U-shaped frame plate. A rotating column is slidably connected to the inner surface of the U-shaped frame plate, and a rotating plate is fixedly connected to the bottom of the rotating column.

[0012] Preferably, a support plate is fixedly connected to the top of the rear surface of the iron removal box, a drive motor is fixedly installed on the top of the support plate, and the output shaft of the drive motor is fixedly connected to the bottom of the rotating plate.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. In this utility model, the drive motor drives the magnetic drum to rotate. When the silicon micro powder flows on the surface of the magnetic drum, the iron filings are attracted and adsorbed on the magnetic drum by the magnetic field. When the magnetic drum rotates to the bottom, it contacts the rubber scraper at the top of the U-shaped chip removal plate. The rubber scraper can continuously scrape off the iron filings adsorbed on the magnetic drum. The iron filings fall into the U-shaped chip removal plate and enter the iron filings collection box through the rear connecting pipe. Through the cooperation between the magnetic drum, the U-shaped chip removal plate, the rubber scraper, the connecting pipe and the iron filings collection box, the automatic cleaning of iron filings is realized, avoiding the accumulation of iron filings on the magnetic drum and affecting the magnetic field strength, reducing the frequency of manual cleaning, and reducing labor intensity and production costs.

[0015] 2. In this utility model, the silicon powder in the feed hopper falls through the discharge hole on the sliding guide plate. The drive motor drives the rotating plate to rotate, and the rotating plate drives the rotating column to slide on the inner surface of the U-shaped frame plate. This causes the U-shaped frame plate to drive the sliding guide plate and the discharge hole to slide back and forth, making the silicon powder more dispersed during the discharge process. At the same time, four magnetic rollers are set in the iron removal box. After the silicon powder flows over the outer surface of the top two magnetic rollers, it will fall on the outer surface of the bottom two magnetic rollers and finally be discharged from the discharge port. Through the cooperation between the drive motor, rotating plate, rotating column, U-shaped frame plate, sliding guide plate, discharge hole and four magnetic rollers, the distribution of silicon powder on the magnetic rollers is more uniform, ensuring that the silicon powder is in full contact with the magnetic rollers, further improving the iron removal effect and ensuring the quality of silicon powder. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the automatic iron removal device for silicon micro powder of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the iron removal box of this utility model;

[0018] Figure 3 This is a schematic diagram of the back structure of the iron removal box of this utility model;

[0019] Figure 4 This is an enlarged structural diagram of the back of the iron removal box of this utility model.

[0020] Legend: 1. Iron removal box; 11. Conical guide plate; 12. Inclined guide plate; 13. U-shaped chip removal plate; 14. Rubber scraper; 15. Connecting pipe; 16. Iron chip collection box; 17. Support plate; 18. Drive motor; 2. Support leg; 3. Feed hopper; 31. Connecting chute; 32. Sliding guide plate; 33. Drop hole; 34. U-shaped frame plate; 35. Rotating column; 36. Rotating plate; 4. Discharge port; 5. Drive motor; 51. Magnetic roller. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a technical solution: it includes a magnetic stripping box 1, with support legs 2 fixedly connected to each of the four corners of the magnetic stripping box 1, a feed hopper 3 fixedly connected to the top of the magnetic stripping box 1, a discharge port 4 fixedly connected to the bottom of the magnetic stripping box 1, four drive motors 5 fixedly installed on the front side of the magnetic stripping box 1, the output shaft of the drive motor 5 passing through the interior of the magnetic stripping box 1 and fixedly connected to a magnetic roller 51, and four U-shaped chip removal plates 13 fixedly connected to the inner wall of the magnetic stripping box 1. The plates are inclined forward and backward to facilitate the movement of iron filings along the U-shaped chip removal plates. 13 slides backward, and four U-shaped chip removal plates 13 are respectively set at the bottom of the magnetic roller 51. A rubber scraper 14 is fixedly connected to the top of the U-shaped chip removal plate 13. The upper surface of the rubber scraper 14 is in contact with the outer surface of the magnetic roller 51. Four connecting pipes 15 are fixedly connected to the rear side of the outer surface of the iron removal box 1. The front end of the connecting pipe 15 is connected to the rear end of the U-shaped chip removal plate 13. A chip collection box 16 is fixedly connected to the bottom of the rear surface of the iron removal box 1.

[0024] The effect achieved by the entire embodiment 1 is as follows: the drive motor 5 is started, and the drive motor 5 drives the magnetic roller 51 to rotate continuously. After the silicon micro powder enters the iron removal box 1 from the feed hopper 3, it falls on the surface of the rotating magnetic roller 51 under the action of gravity. The iron filings are attracted by the magnetic field of the magnetic roller 51 and are quickly adsorbed on its outer surface. As the magnetic roller 51 rotates, when the part with adsorbed iron filings rotates to the bottom and contacts the rubber scraper 14 at the top of the U-shaped chip removal plate 13, the rubber scraper 14 scrapes the iron filings off the surface of the magnetic roller 51 by its own elasticity and its close contact with the magnetic roller 51. The scraped iron filings fall into the U-shaped chip removal plate 13. Due to the inclined design of the U-shaped chip removal plate 13, the iron filings slide backward along the U-shaped chip removal plate 13 and enter the iron filings collection box 16 through the connecting pipe 15, thereby realizing the automatic cleaning of iron filings, avoiding the accumulation of iron filings on the magnetic roller 51 to weaken the magnetic field strength, effectively reducing the frequency of manual cleaning, reducing labor intensity and production costs.

[0025] Example 2: As Figure 2 and Figure 4As shown, this utility model provides a technical solution: a conical guide plate 11 is fixedly connected to the top center of the inner wall of the iron removal box 1, wherein two magnetic rollers 51 are respectively rotatably connected to the bottom left and right sides of the conical guide plate 11, and inclined guide plates 12 are fixedly connected to the center of the left and right sides of the inner wall of the iron removal box 1, and two other magnetic rollers 51 are respectively rotatably connected to the bottom of the two inclined guide plates 12. The bottom end of the feed hopper 3 is aligned with the top of the conical guide plate 11, and a connecting groove 31 is opened on the bottom of the inner surface of the feed hopper 3. A sliding guide plate 32 is slidably connected to the surface of the iron removal box 1. Several through-holes 33 are opened on the upper surface of the sliding guide plate 32. The rear end of the sliding guide plate 32 extends to the rear side of the iron removal box 1 and is fixedly connected to a U-shaped frame plate 34. A rotating column 35 is slidably connected to the inner surface of the U-shaped frame plate 34. A rotating plate 36 is fixedly connected to the bottom of the rotating column 35. A support plate 17 is fixedly connected to the top of the rear surface of the iron removal box 1. A drive motor 18 is fixedly installed on the top of the support plate 17. The output shaft of the drive motor 18 is fixedly connected to the bottom of the rotating plate 36.

[0026] The overall effect achieved in Embodiment 2 is as follows: The drive motor 18 is started, which drives the rotating plate 36 to rotate. The rotating plate 36 drives the rotating column 35 to slide circumferentially on the inner surface of the U-shaped frame plate 34. Due to the sliding engagement between the rotating column 35 and the U-shaped frame plate 34, the U-shaped frame plate 34 drives the sliding guide plate 32 to slide back and forth in the connecting groove 31 within the feed hopper 3. At this time, when the silicon powder in the feed hopper 3 falls through the discharge hole 33 on the sliding guide plate 32, the silicon powder is more evenly dispersed during the discharge process due to the reciprocating motion of the sliding guide plate 32. The dispersed silicon powder first falls onto the conical guide plate 11. Guided by the conical guide plate 11, it flows evenly to the rotating magnetic rollers 51 on the left and right sides of the bottom. After the first iron removal by the two magnetic rollers 51 at the top, the silicon powder continues to fall onto the inclined guide plate 12. It is then guided by the inclined guide plate 12 to the surface of the other two magnetic rollers 51 at the bottom for secondary iron removal. Finally, the silicon powder after iron removal is discharged from the discharge port 4. In this way, it is ensured that the silicon powder is in full contact with the four magnetic rollers 51 in the iron removal box 1, which greatly improves the iron removal effect and ensures the quality of the silicon powder.

[0027] The working principle of the whole equipment is as follows: First, the silicon powder to be removed is poured into the feed hopper 3. The drive motor 18 is started. The drive motor 18 drives the rotating plate 36 to rotate. Through the sliding connection between the rotating column 35 and the U-shaped frame plate 34, the sliding guide plate 32 is driven to slide back and forth in the connecting groove 31, so that the silicon powder is evenly dispersed from the discharge hole 33 and falls onto the conical guide plate 11.

[0028] Next, four drive motors 5 are started, and the drive motors 5 drive the magnetic rollers 51 to rotate at high speed. The silicon powder flowing down from the conical guide plate 11 falls on the surface of the top two magnetic rollers 51. The iron filings in the silicon powder are quickly adsorbed on the outer surface of the magnetic rollers 51 under the action of the magnetic field. As the magnetic rollers 51 rotate, when the part adsorbing the iron filings rotates to the bottom and contacts the rubber scraper 14 at the top of the U-shaped chip removal plate 13, the rubber scraper 14 scrapes the iron filings off onto the U-shaped chip removal plate 13. The iron filings then enter the iron filings collection box 16 through the connecting pipe 15 along the U-shaped chip removal plate 13.

[0029] After initial iron removal by the two top magnetic rollers 51, the silicon powder falls onto the inclined guide plate 12. Guided by the inclined guide plate 12, it continues to flow to the surface of the other two bottom magnetic rollers 51 for secondary iron removal. After two iron removal processes, the silicon powder is finally discharged from the discharge port 4, completing the entire iron removal process. Throughout the entire process, the magnetic rollers 51 rotate continuously and automatically clean up iron filings. The feeding structure ensures that the silicon powder is evenly dispersed and falls. The synergistic effect of multiple magnetic rollers achieves efficient and thorough iron removal of the silicon powder.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic iron removal device for silicon micropowder, comprising an iron removal box (1), wherein each of the four corners of the iron removal box (1) is fixedly connected to a support leg (2), characterized in that: The top of the iron removal box (1) is fixedly connected to a feed hopper (3), the bottom of the iron removal box (1) is fixedly connected to a discharge port (4), and four drive motors (5) are fixedly installed on the front side of the iron removal box (1). The output shaft of the drive motor (5) passes through the interior of the iron removal box (1) and is fixedly connected to a magnetic roller (51). The inner wall of the iron removal box (1) is fixedly connected with four U-shaped chip removal plates (13). The four U-shaped chip removal plates (13) are respectively set at the bottom of the magnetic roller (51). The top of the U-shaped chip removal plates (13) is fixedly connected with rubber scrapers (14). The upper surface of the rubber scrapers (14) is in contact with the outer surface of the magnetic roller (51). The rear side of the outer surface of the iron removal box (1) is fixedly connected with four connecting pipes (15). The front end of the connecting pipes (15) is connected to the rear end of the U-shaped chip removal plates (13). The bottom end of the four connecting pipes (15) is fixedly connected with an iron chip collection box (16). The iron chip collection box (16) is fixedly connected to the bottom of the rear surface of the iron removal box (1).

2. The automatic iron removal device for silicon micropowder according to claim 1, characterized in that: A conical guide plate (11) is fixedly connected to the top center of the inner wall of the iron removal box (1), wherein two magnetic rollers (51) are respectively rotatably connected to the bottom left and right sides of the conical guide plate (11).

3. The automatic iron removal device for silicon micropowder according to claim 1, characterized in that: The inner wall of the iron removal box (1) is fixedly connected to the middle of the left and right sides of the inclined guide plate (12), and the other two magnetic rollers (51) are respectively rotatably connected to the bottom of the two inclined guide plates (12).

4. The automatic iron removal device for silicon micropowder according to claim 1, characterized in that: The bottom end of the feed hopper (3) is aligned with the top of the conical guide plate (11). A connecting groove (31) is provided at the bottom of the inner surface of the feed hopper (3). A sliding guide plate (32) is slidably connected to the inner surface of the connecting groove (31). A number of vertically penetrating drop holes (33) are provided on the upper surface of the sliding guide plate (32).

5. The automatic iron removal device for silicon micropowder according to claim 4, characterized in that: The rear end of the sliding guide plate (32) extends through to the rear side of the iron removal box (1) and is fixedly connected to a spiral frame plate (34). A rotating column (35) is slidably connected to the inner surface of the spiral frame plate (34), and a rotating plate (36) is fixedly connected to the bottom of the rotating column (35).

6. The automatic iron removal device for silicon micropowder according to claim 5, characterized in that: A support plate (17) is fixedly connected to the top of the rear surface of the iron removal box (1), and a drive motor (18) is fixedly installed on the top of the support plate (17). The output shaft of the drive motor (18) is fixedly connected to the bottom of the rotating plate (36).

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