Multi-stage progressive silica iron removal magnetic separator

By using a multi-stage progressive silica iron removal magnetic separator, and by employing a vibration assembly and scraper design, the problem of low screening efficiency caused by uneven silica mixture in traditional magnetic separators has been solved, thereby improving silica purity and iron recovery efficiency.

CN224157014UActive Publication Date: 2026-04-24HENAN HENGSHUO MAGNETIC SEPARATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN HENGSHUO MAGNETIC SEPARATION EQUIP CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Traditional magnetic separators struggle to efficiently remove fine-grained weakly magnetic impurities and iron inclusions from silica during the sorting process due to insufficient sorting gradient and uneven feeding of the silica mixture. Furthermore, uneven distribution of the silica mixture leads to insufficient magnetic field penetration, affecting screening efficiency.

Method used

The multi-stage progressive silica magnetic separator for iron removal uses a vibration assembly to drive the conveyor belt to vibrate, which spreads the silica mixture evenly and performs screening during the multi-stage conveying process. Combined with the design of scrapers and isolation covers, it improves screening efficiency and iron recovery efficiency.

Benefits of technology

This technology enables the uniform spreading and multiple screening of silica mixtures, improving silica purity and iron recovery efficiency while reducing the impact of the magnetic separator on surrounding electrical appliances.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The multi-stage progressive silica iron removal magnetic separator comprises a box body, a first conveying device, a second conveying device, a scraper, magnetic poles and an oscillation starting assembly, a feeding port is formed in the upper side of the box body, two iron discharging ports are formed in the lower side of the box body, and a discharging port is formed in the lower side of the discharging position of the second conveying device; the first conveying device comprises a first driving wheel, a first driven wheel and a first conveying belt, the first conveying device is horizontally installed on the lower side of the feeding port, the vibration starting assembly comprises a first motor, a deformable vibration starting piece and a check block, the first motor and the check block are fixedly installed on the box body, and the deformable vibration starting piece is fixedly installed on a rotating shaft of the first motor; the first motor drives the deformable oscillation starting piece to rotate, the deformable oscillation starting piece vibrates when passing through the check block, and the magnetic poles are fixedly installed at idle positions in the first conveying device and the second conveying device respectively. The device has the effect of automatically and uniformly laying the silica mixture.
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Description

Technical Field

[0001] This application relates to the field of screening technology, and in particular to a multi-stage progressive silica magnetic separator. Background Technology

[0002] In the industrial production of silica, the presence of iron impurities can seriously affect the chemical stability and optical properties of the product, especially in the fields of photovoltaics, electronics and high-end glass, where the purity requirements for silica are extremely strict.

[0003] Traditional magnetic separators, due to insufficient separation gradient and uneven feeding of silica mixtures, are unable to efficiently remove fine-particle weak magnetic impurities and iron inclusions in silica. Furthermore, if the silica mixture is not evenly spread in the magnetic separation area, some material layers may be too thick, resulting in insufficient magnetic field penetration and the inability to fully adsorb iron impurities.

[0004] Regarding the aforementioned technologies, the applicant believes that there is a defect of uneven screening of silica mixtures. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a multi-stage progressive silica magnetic separator for iron removal.

[0006] This application provides a multi-stage progressive silica magnetic separator for iron removal, which adopts the following technical solution:

[0007] A multi-stage progressive silica magnetic separator includes a housing, a first conveying device, a second conveying device, a scraper, magnetic poles, and a vibration assembly. The housing has a feed inlet on its upper side and two iron discharge outlets on its lower side. The discharge outlet is located below the material discharge point of the second conveying device. The first conveying device includes a first driving wheel, a first driven wheel, and a first conveyor belt. The first conveying device is horizontally installed below the feed inlet. The vibration assembly includes a first motor, a deformable vibrating plate, and a stop block. The first motor and the stop block are respectively fixedly installed on the housing. The deformable vibrating plate is fixedly installed on the shaft of the first motor. The first motor drives the deformable vibrating plate to rotate. The deformable vibrating plate vibrates when it passes the stop block. The magnetic poles are respectively fixedly installed in the empty positions inside the first and second conveying devices.

[0008] By adopting the above technical solution, the vibration component drives the first conveyor belt to vibrate. The vibration component can spread the silica mixture falling on the conveyor belt evenly and reduce the working pressure of the local magnetic poles on the lower side of the first conveyor belt, thereby improving the screening efficiency.

[0009] Preferably, the second conveying device includes a second driving wheel, a second driven wheel, a second conveyor belt, and a second motor. The second conveying device is installed below the material drop point of the first conveying device, and the second motor is connected to the second driving wheel and fixedly installed on the box.

[0010] By adopting the above technical solution, the silica mixture is transported from the first conveying device to the second conveying device. This process allows the silica mixture to be screened multiple times, thereby extracting silicon with higher purity.

[0011] Preferably, the two iron discharge ports are respectively located on the lower side of the first conveying device and the second conveying device, and the two extend downward to form a centralized iron discharge port.

[0012] By adopting the above technical solution, the two iron discharge outlets can be extended into a single centralized iron discharge outlet, which can help workers handle iron more conveniently and quickly, and improve the iron recycling efficiency.

[0013] Preferably, an isolation cover for isolating magnetic fields is installed on the outside of the enclosure, and a certain gap is left between the isolation cover and the outer surface of the enclosure.

[0014] By adopting the above technical solution, the magnetic field can be isolated by the isolation cover during operation, ensuring that other electrical appliances around the magnetic separator are not affected. In addition, the isolation cover leaves a certain gap with the surface of the box, which can also ensure that the magnetic separator itself is not disturbed during operation.

[0015] Preferably, scrapers are respectively located on the lower side of the first conveying device and the second conveying device. The scrapers can scrape the iron adsorbed on the first conveying device and the second conveying device into the iron discharge port.

[0016] The preferred iron discharge port has at least two holes on each side of the box and the lower side of the scraper, and the holes of the scraper correspond to the holes on both sides of the iron discharge port. Two fixing rods are inserted into the two corresponding holes respectively.

[0017] By adopting the above technical solution, the scraper is positioned by a fixing rod. When cleaning the scraper, the fixing rod can be pulled out to remove the scraper, which improves the utilization rate of the scraper and the work efficiency.

[0018] Preferably, an opening is provided on one side of the lower part of the box, and a sealing cover is provided at the opening, with the sealing cover being rotatably connected to the box.

[0019] By adopting the above technical solution, opening the sealing cover allows staff to easily observe the internal condition of the chamber and provides a convenient passage for staff to clean up the accumulated waste inside the chamber, keeping the inside of the magnetic separator clean.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The vibration component drives the first conveyor belt to vibrate. The vibration component can spread the silica mixture falling on the conveyor belt evenly and reduce the working pressure of the local magnetic poles on the lower side of the first conveyor belt, thereby improving the screening efficiency.

[0022] 2. The scraper is positioned by a fixing rod. When cleaning the scraper, the fixing rod can be pulled out to remove the scraper, which improves the utilization rate of the scraper and the work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic cross-sectional view of the embodiment.

[0024] Figure 2 This is a schematic diagram of the structure of the first and second transmission devices.

[0025] Figure 3 This is an enlarged view of the vibration starter assembly.

[0026] Figure 4 This is a schematic diagram of the overall appearance of the embodiment.

[0027] Explanation of reference numerals in the attached drawings: 1. Box body; 12. Feed inlet; 13. Iron discharge outlet; 14. Discharge outlet; 15. Centralized iron discharge outlet; 2. First conveyor device; 21. First driving wheel; 22. First driven wheel; 23. First conveyor belt; 3. Second conveyor device; 31. Second driving wheel; 32. Second driven wheel; 33. Second conveyor belt; 4. Scraper; 5. Magnetic pole; 6. Vibration assembly; 61. Deformable vibrating plate; 62. Stop block; 63. First motor; 7. Isolation cover; 8. Fixing rod; 9. Sealing cover plate. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses a multi-stage progressive silica magnetic separator for iron removal. (Refer to...) Figure 1 , Figure 2 and Figure 3 The system includes a housing 1, a first conveying device 2, a second conveying device 3, a scraper 4, a magnetic pole 5, and a vibration assembly 6. An isolation cover 7 is mounted on the housing 1 using a support frame to isolate the magnetic separator from the surrounding electrical appliances during operation. The first conveying device 2 and the second conveying device 3 are fixed to the housing 1, with the first conveying device 2 located diagonally above the second conveying device 3. The first conveying device 2 can transfer materials to the second conveying device 3, achieving multi-stage conveying. The first conveying device 2 includes a first conveyor belt 23, a first driving wheel 21, and a first driven wheel 22. The second conveying device 3 includes a second conveyor belt 33, a second driving wheel 31, and a second driven wheel 32. The vibration assembly 6 is installed inside the first conveying device 2 and includes a deformable vibrating plate 61, a stop block 62, and a first motor 63. The first motor 63 and the stop block 62 are respectively fixed to the housing 1, and the first motor 63 and the deformable vibrating plate 61 are fixedly connected.

[0030] The scraper 4 is attached to the inside of the box 1 and fixed by two fixing rods 8. The two fixing rods 8 support the scraper 4 and facilitate disassembly during replacement. The two fixing rods 8 pass through the holes on the scraper 4 and the box 1. The two iron discharge ports 13 inside the box 1 extend downward to form a centralized iron discharge port 15, which reduces the working range of the staff and improves work efficiency. The lower side of the box 1 is also provided with a discharge port 14. The silica mixture is screened by the first conveying device 2 and the second conveying device 3 and finally falls out from the discharge port 14. There is an opening on one side of the lower part of the box 1, and a sealing cover plate 9 is provided at the opening. The sealing cover plate 9 is rotatably connected to the box 1.

[0031] The working principle of the multi-stage progressive silica iron removal magnetic separator in this application is as follows: The silica mixture enters the magnetic separator through the feed inlet 12 and then falls onto the first conveyor belt 23 in the first conveying device 2. The first motor 63 in the vibration assembly 6 drives the deformable vibrating plate 61 to rotate. The deformable vibrating plate 61 is bounced up when it reaches the stop block 62. The deformable vibrating plate 62 hits the inside of the first conveyor belt 23 in the first conveying device 2, causing the first conveyor belt 23 to vibrate and spread the silica mixture evenly. The silica mixture is transported to the magnetic pole 5 position, where the iron in the mixture is attracted to the magnetic pole 5. The non-magnetic silicon falls onto the second conveying device 3 by gravity to perform a second screening of the silica mixture. The iron and silicon are then transported to the centralized iron discharge port 15 and the discharge port 14, respectively.

[0032] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-stage progressive silica iron removal magnetic separator, characterized by: The system includes a housing (1), a first conveying device (2), a second conveying device (3), a scraper (4), a magnetic pole (5), and a vibration assembly (6). The housing (1) has a feed inlet (12) on its upper side and two iron discharge outlets (13) on its lower side. The discharge outlet (14) is located below the material discharge point of the second conveying device (3). The first conveying device (2) includes a first driving wheel (21), a first driven wheel (22), and a first conveyor belt (23). The first conveying device (2) is horizontally installed below the feed inlet (12). The vibration assembly... The component (6) includes a deformable vibrating plate (61), a stop (62) and a first motor (63). The first motor (63) and the stop (62) are respectively fixedly installed on the housing (1). The deformable vibrating plate (61) is fixedly installed on the rotating shaft of the first motor (63). The first motor (63) drives the deformable vibrating plate (61) to rotate. The deformable vibrating plate (61) vibrates when it passes the stop (62). The magnetic poles (5) are respectively fixedly installed in the empty positions inside the first conveying device (2) and the second conveying device (3).

2. A multi-stage progressive silica de-ironing magnetic separator according to claim 1, characterized in that: The second conveying device (3) includes a second driving wheel (31), a second driven wheel (32), a second conveyor belt (33) and a second motor. The second conveying device (3) is installed on the lower side of the material drop point of the first conveying device (2). The second motor is connected to the second driving wheel (31) and fixedly installed on the box (1).

3. A multi-stage progressive silica de-ironing magnetic separator according to claim 1, characterized in that: Two iron discharge ports (13) are respectively set on the lower side box (1) of the first conveying device (2) and the second conveying device (3), and the two extend downward to form a centralized iron discharge port (15).

4. A multi-stage progressive silica de-ironing magnetic separator as claimed in claim 1, wherein: An isolation cover (7) for isolating magnetic fields is installed on the outside of the box (1), and a certain gap is left between the isolation cover (7) and the outer surface of the box (1).

5. A multi-stage progressive silica de-ironing magnetic separator as claimed in claim 1, wherein: The scraper (4) is located on the lower side of the first conveying device (2) and the second conveying device (3). The scraper (4) can scrape the iron adsorbed on the first conveying device (2) and the second conveying device (3) into the iron discharge port (13).

6. A multi-stage progressive silica de-ironing magnetic separator according to claim 5, characterized in that: At least two holes are provided on the box body (1) on both sides of the iron discharge port (13) and the lower side of the scraper (4), and the holes of the scraper (4) correspond to the holes on both sides of the iron discharge port (13). Two fixing rods (8) are inserted into the two corresponding holes respectively.

7. A multi-stage progressive silica de-ironing magnetic separator as claimed in claim 1, wherein: An opening is provided on one side of the lower part of the box (1), and a sealing cover (9) is provided at the opening. The sealing cover (9) is rotatably connected to the box (1).