Plate type magnetic separator for quartz sand
By designing a plate magnetic separator with its own grinding and screening, the problem of insufficient processing capacity of conventional magnetic separators for large particles and high humidity materials is solved, efficient separation and purity improvement are achieved, and energy consumption and maintenance costs are reduced.
Patent Information
- Application Number
- CN202422710086.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-07
AI Technical Summary
In the prior art, conventional magnetic separators have poor selectivity for different magnetic minerals, making it difficult to effectively separate weak magnetic or non-magnetic minerals, and have insufficient processing capacity for large particles or high humidity materials, resulting in low separation efficiency, high energy consumption, uneven magnetic field, easy to blockage, and high maintenance costs.
A plate magnetic separator with its own grinding and filtration is designed, including feeding device, grinding device, rotating cylinder and permanent magnet. Appropriate particles are screened through the screening plate, the rotating cylinder and permanent magnet are combined to separate magnetic impurities, the arc-shaped channel is optimized for flow path, and the design of blanking plate and discharge groove improves separation efficiency and accuracy.
It improves the purity and separation efficiency of quartz sand, reduces clogging and maintenance costs, improves the stability and accuracy of the magnetic separation process, saves space and simplifies the cleaning process.
Smart Images
Figure CN223233886U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of quartz sand purification equipment, in particular to a plate-type magnetic separator for quartz sand. Background Art
[0002] Quartz sand is primarily composed of quartz (SiO2) and typically appears as transparent or translucent particles. Quartz sand is typically mined through open pit mining. After mining, it undergoes processing steps such as crushing, screening, and washing to remove impurities and unqualified particles. Depending on the application requirements, quartz sand must meet specific quality standards and specifications, such as particle size and purity.
[0003] Conventional magnetic separators have poor selectivity for different magnetic minerals and may not be able to effectively separate weakly magnetic or non-magnetic minerals. For large particles or high-humidity materials, conventional magnetic separators may encounter insufficient processing capacity, resulting in reduced separation efficiency.
[0004] The magnetic field strength of conventional magnetic separators may not be sufficient to handle certain applications that require high magnetic field strength, limiting their application in high-demand situations; during long-term use, the magnetic rollers or magnets of the magnetic separator may need to be replaced, increasing maintenance costs and downtime.
[0005] The energy consumption during the operation is high, which affects the overall economy. For some materials with larger particle size or easy to clog, conventional magnetic separators may easily become clogged, affecting the normal operation of the equipment. In addition, the distribution of the magnetic field is not uniform, resulting in inconsistent material separation effects. Summary of the Invention
[0006] The technical problem to be solved by the utility model is to provide a plate-type magnetic separator for quartz sand, which is capable of grinding, filtering and efficiently screening quartz sand, in view of the deficiencies in the prior art.
[0007] The technical problem to be solved by the utility model is achieved through the following technical solutions: a plate-type magnetic separator for quartz sand, comprising a magnetic separation box, a feeding device for quartz sand is provided above the magnetic separation box, a grinding device for quartz sand is provided just below the feeding device, a blanking plate is provided below the quartz sand grinding device, a rotating cylinder is provided on one side of the quartz sand grinding device, a rotating motor is provided at the end of the rotating cylinder, the rotating motor drives the rotating cylinder to rotate unidirectionally from the blanking plate to the discharging direction, and a permanent magnet is provided inside the rotating cylinder which is always in the lower half of the rotating cylinder. The permanent magnet is fixedly mounted on the rotating drum. A curved plate, connected to the blanking plate, is positioned axially below the rotating drum. The curved plate matches the outer surface of the rotating drum, forming a curved channel between the two surfaces. The end of the curved channel where it meets the blanking plate serves as the feed inlet, and the end of the curved channel serves as the fine material discharge outlet. A fine material discharge chute is located at the fine material discharge outlet, which is below the top surface of the permanent magnet. A tailings discharge outlet is located on the curved plate to one side of the curved channel discharge outlet, and a tailings discharge chute is located at the tailings discharge outlet. The grinding device effectively grinds the quartz sand uniformly, improving the efficiency of subsequent magnetic separation. The combination of the rotating drum and permanent magnet separates magnetic impurities from the quartz sand, thereby enhancing its purity. The curved channel design optimizes the flow path of the quartz sand, effectively separating the fine material and tailings. The fine material and tailings discharge chute ensure efficient separation and cleaning. The overall efficiency and accuracy of the magnetic separation process are improved.
[0008] As a further embodiment of the present invention, the feeding device includes a feed cone with an upward opening, a vertical guide tube disposed below the feed cone, and a sieve plate disposed between the feed cone and the guide tube. The sieve plate is uniformly provided with a plurality of sieve holes, each of which has an aperture larger than the maximum diameter of the quartz sand particles. This effectively reduces the accumulation and clogging of quartz sand. The sieve holes on the sieve plate ensure that only quartz sand particles of appropriate size can pass through, avoiding interference from larger particles, thereby improving the efficiency and effectiveness of subsequent processing. The entire system improves the uniformity of feeding and the fluidity of the quartz sand, contributing to the stability and precision of the magnetic separation process.
[0009] As a further embodiment of the present invention, the grinding device comprises two horizontal, parallel grinding rollers, a grinding gap defined between the rollers, a feed drum positioned directly opposite the grinding gap, and a grinding motor mounted on the same side of each grinding roller. The two grinding motors drive the grinding rollers to rotate synchronously in opposite directions. The two horizontal, parallel grinding rollers ensure that the quartz sand passes through a uniform grinding gap, resulting in effective grinding. The alignment of the feed drum with the grinding gap ensures smooth sand delivery and comprehensive, uniform grinding.
[0010] As a further embodiment of the present invention, the blanking plate includes a first blanking plate and a second blanking plate that are connected and transitionally arranged with each other. The first blanking plate and the second blanking plate are arranged as a whole along the side panels of the magnetic separation box body from top to bottom in the direction of the curved plate. The inclination angle of the first blanking plate is smaller than the inclination angle of the second blanking plate. The first blanking plate is arranged directly below the grinding roller, and the second blanking plate is connected to the curved plate in a transitional manner. The smaller inclination angle of the first blanking plate helps to effectively guide the ground quartz sand to the second blanking plate, while the larger inclination angle of the second blanking plate ensures that the quartz sand can be smoothly transitioned to the curved plate, reducing the retention and accumulation of quartz sand, thereby improving the efficiency of the entire magnetic separation process.
[0011] As a further solution of the present invention, the fine material discharge trough includes a fine material vertical cylinder that cooperates with the fine material discharge port, and a fine material cone cylinder with an enlarged opening is provided at the lower end of the fine material vertical cylinder. The fine material cone cylinder extends to the outside of the magnetic separation box, and the end of the fine material cone cylinder is connected to a fine material storage box.
[0012] The collection baffle guides and collects the concentrate, minimizing leakage and waste. The design of the concentrate cylinder and cone ensures smooth flow of concentrate to the storage bin, preventing blockage or obstruction. The cone extends beyond the magnetic separation bin, saving internal space and improving processing efficiency. The concentrate storage bin conveniently stores and manages concentrate, simplifying subsequent processing.
[0013] As a further solution of the present invention, the tailings discharge trough includes a tailings vertical cylinder that cooperates with the tailings discharge port. A collecting baffle is provided on the cylinder plate of the tailings vertical cylinder away from the rotating cylinder. A tailings cone cylinder with an enlarged opening is provided at the lower end of the tailings vertical cylinder. The tailings cone cylinder extends outward to the outside of the magnetic separation box, and the end of the tailings cone cylinder is connected to a tailings storage box.
[0014] The tailings vertical cylinder cooperates with the tailings discharge port to efficiently guide the tailings into the tailings cone, ensuring smooth discharge of the tailings; the tailings cone extends outside the magnetic separation box, which can effectively utilize space, reduce the complexity inside the magnetic separation box, simplify storage, reduce waste and leakage of tailings, and improve overall processing efficiency.
[0015] The beneficial effects of the utility model are:
[0016] The utility model provides a plate-type magnetic separator for quartz sand, comprising a magnetic separation box, and a feeding device for quartz sand is provided above the magnetic separation box, which effectively reduces the accumulation and blockage of quartz sand. The sieve holes on the sieve plate ensure that only quartz sand particles of appropriate size can pass through, avoiding interference from larger particles, thereby improving the efficiency and effect of subsequent processing. A grinding device for quartz sand is provided directly below the feeding device, which effectively grinds the quartz sand evenly, thereby improving the efficiency of subsequent magnetic separation. The combination of the rotating drum and the permanent magnet separates the magnetic impurities in the quartz sand, thereby improving the purity of the quartz sand. The design of the arc channel optimizes the flow path of the quartz sand, so that the concentrate and tailings can be effectively separated, and through the concentrate discharge trough and the tailings discharge trough, an efficient separation and cleaning process is guaranteed. The efficiency and accuracy of the magnetic separation process are improved as a whole.
[0017] The smaller inclination angle of the first blanking plate helps to effectively guide the ground quartz sand to the second blanking plate, while the larger inclination angle of the second blanking plate ensures that the quartz sand can smoothly transition to the curved plate, reducing the retention and accumulation of quartz sand, thereby improving the efficiency of the entire magnetic separation process.
[0018] The collection baffle guides and collects the fine material, reducing leakage and waste of fine material. The tailing cone extends outside the magnetic separation box, which can effectively utilize space, reduce the complexity of the magnetic separation box, simplify storage, reduce waste and leakage of tailings, and improve overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model Figure 2 ;
[0021] Figure 3 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 4 It is a rear view of the utility model;
[0023] Figure 5 It is a side view of the utility model;
[0024] Figure 6 This is a schematic diagram of the curved plate structure of the present utility model;
[0025] Figure 7 This is a schematic diagram of the installation of the rotating cylinder and permanent magnet of the utility model.
[0026] Among them: 1-magnetic separation box, 2-blanking plate, 201-first blanking plate, 202-second blanking plate, 3-grinding device, 301-grinding roller, 302-grinding motor, 4-feeding device, 401-feeding cone, 402-screen plate, 403-leading cylinder, 5-arc channel, 501-feeding port, 502-fine material discharge port, 503-tailing material discharge port, 6-arc plate, 7-rotating cylinder, 701-rotating motor, 8-tailing material discharge trough, 801-collecting baffle, 802-tailing material vertical cylinder, 803-tailing material cone, 804-tailing material storage box, 9-fine material discharge trough, 901-fine material vertical cylinder, 902-fine material cone, 903-fine material storage box, 10-permanent magnet, 11-discharge port. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0028] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.
[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0030] like Figures 1 to 6As shown, a plate-type magnetic separator for quartz sand includes a magnetic separation box 1, above which is a feeding device 4 for quartz sand. The feeding device includes an upward-opening feed cone 401. Quartz sand is added to the feed cone. A vertical guide tube 403 is located below the feed cone. A sieve plate 402 is located between the feed cone and the guide tube. The sieve plate is uniformly distributed with a plurality of sieve holes, each with a diameter larger than the maximum diameter of the quartz sand particles. Quartz sand and materials with a diameter smaller than the quartz sand particles are screened through the sieve holes. After the impurities are filtered out, the coarse-screened quartz sand falls along the guide tube.
[0031] A grinding device 3 for quartz sand is provided directly below the feeding device. The grinding device includes two horizontally and parallelly arranged grinding rollers 301. A grinding gap is provided between the grinding rollers. The feed cylinder is arranged opposite to the grinding gap. A grinding motor 302 is provided on the same side of the two grinding rollers. The two grinding motors drive the grinding rollers to rotate synchronously in opposite directions.
[0032] The grinding motor 302 is started, driving the grinding rollers 301 to rotate synchronously in opposite directions, and the coarse-screened quartz sand is ground along the grinding gap between the two grinding rollers to be ground into small particles of quartz sand.
[0033] A blanking plate 2 is located below the quartz sand grinding device. It comprises a first blanking plate 201 and a second blanking plate 202, which are arranged in a transitional arrangement. The first and second blanking plates are arranged as a whole, tilted from top to bottom along the side panels of the magnetic separation box toward the curved plate. The first blanking plate has a smaller inclination angle than the second blanking plate. The first blanking plate is positioned directly below the grinding rollers, while the second blanking plate transitions to the curved plate. Small quartz sand particles first fall onto the first blanking plate, which has a smaller inclination angle, and accumulate. Once a certain amount of quartz sand accumulates, it is effectively guided to the second blanking plate, which has a larger inclination angle. The quartz sand on the second blanking plate transitions and falls onto the curved plate.
[0034] A rotating cylinder 7 is provided on one side of the quartz sand grinding device, and a rotating motor 701 is provided at the end of the rotating cylinder. A cylinder cover is provided at the end of the rotating cylinder on the side of the rotating motor, and the center of the cylinder cover is fixedly connected to the shaft of the rotating motor. A cylinder rotary bearing is provided on the side of the rotating cylinder away from the rotating motor, and the cylinder rotates circumferentially with the rotary bearing.
[0035] like Figure 7 As shown, the rotary motor drives the rotary drum to rotate unidirectionally from the blanking plate to the discharging direction, and the rotary drum drives the small particles of quartz sand to rotate around the drum.
[0036] A permanent magnet 10 is provided inside the rotating cylinder and is always located in the lower half of the rotating cylinder. The permanent magnet is fixedly arranged. A rigid support frame is provided at the end of the permanent magnet away from the rotating motor. The rigid support frame is fixed axially along the upper surface of the permanent magnet. The other side of the rigid support frame is fixedly connected to the inner wall of the magnetic separation box. The rigid support frame is arranged within the diameter range of the rotating cylinder and does not interfere with the rotational movement of the rotating cylinder.
[0037] An arc-shaped plate 6 connected to the blanking plate is provided below the rotating drum along the axial direction of the rotating drum. The arc-shaped plate matches the outer surface of the rotating drum roller body, and an arc-shaped channel 5 is formed between the arc-shaped plate and the outer surface of the rotating drum roller body. The end of the arc-shaped channel connected to the blanking plate is set as a feed port 501. Small particles of quartz sand enter the arc-shaped channel along the feed port. The rotation of the rotating drum drives the small particles of quartz sand to rotate around the cylinder body. The magnetic impurities are attracted by the permanent magnet and adsorbed to the outer wall of the rotating drum. The quartz sand with magnetic impurities removed forms refined material, which continues to be transported forward along the arc-shaped channel.
[0038] The tail end of the curved channel is set as a fine material discharge port 502. The fine material continues to be transported forward along the curved channel to the fine material discharge port. The fine material discharge port is lower than the top surface of the permanent magnet. The fine material discharge port is equipped with a fine material discharge chute 9. The fine material discharge chute 9 includes a fine material vertical cylinder 901 that cooperates with the fine material discharge port. The lower end of the fine material vertical cylinder is equipped with a fine material cone 902 with a larger opening. The fine material cone extends outward from the magnetic separation box. The end of the fine material cone is connected to the fine material storage box 903. The fine material enters the fine material storage box along the fine material vertical cylinder and the fine material cone. The bottom of the fine material storage box is equipped with a discharge port 11, which is equipped with a sealing cover.
[0039] A tailings discharge port 503 is provided on the curved plate on one side of the curved channel discharge port, and a tailings discharge chute 8 is provided at the tailings discharge port. The tailings discharge chute 8 includes a tailings vertical cylinder 802 that cooperates with the tailings discharge port. A collection baffle 801 is provided on the cylinder plate on the side of the tailings vertical cylinder away from the rotating cylinder. The lower end of the tailings vertical cylinder is provided with a tailings cone 803 with a larger opening. The tailings cone extends outward from the outside of the magnetic separation box, and the end of the tailings cone is connected to a tailings storage box 804.
[0040] The rotating drum 7, with magnetic impurities adsorbed on its surface, continues to rotate until it reaches a position where it is free from the permanent magnet 10. The impurities fall off automatically due to gravity, mix with the remaining quartz sand, and form tailings that fall into the tailings vertical drum 802. The tailings then enter the tailings conical drum and enter the tailings storage bin 804 for collection and storage. A discharge port is provided at the bottom of the tailings storage bin, which is sealed with a cap.
[0041] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0042] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.
Claims
1. A plate magnetic separator for quartz sand, characterized in that: The invention comprises a magnetic separation box (1), a feeding device (4) for quartz sand is provided above the magnetic separation box, a grinding device (3) for quartz sand is provided just below the feeding device, a blanking plate (2) is provided below the quartz sand grinding device, a rotating cylinder (7) is provided on one side of the quartz sand grinding device, a rotating motor (701) is provided at the end of the rotating cylinder, the rotating motor drives the rotating cylinder to rotate unidirectionally from the blanking plate to the discharge direction, a permanent magnet (10) is provided inside the rotating cylinder and is always located in the lower half of the rotating cylinder, the permanent magnet is fixedly arranged, and a rotating cylinder is provided below the rotating cylinder along the axial direction of the rotating cylinder. An arc plate (6) is connected to the blanking plate, and the shape of the arc plate matches that of the outer surface of the rotating drum roller. An arc channel (5) is formed between the arc plate and the outer surface of the rotating drum roller. The end of the arc channel connected to the blanking plate is set as a feed port (501), and the tail end of the arc channel is set as a fine material discharge port (502). A fine material discharge trough (9) is provided at the fine material discharge port. The fine material discharge port is lower than the top surface height of the permanent magnet. A tail material discharge port (503) is provided on the arc plate located on one side of the arc channel discharge port, and a tail material discharge trough (8) is provided at the tail material discharge port.
2. The plate magnetic separator for quartz sand according to claim 1, characterized in that: The feeding device (4) comprises a feeding cone (401) with an opening facing upward, a vertical guide cylinder (403) provided below the feeding cone, a screening plate (402) provided between the feeding cone and the guide cylinder, and a plurality of screening holes uniformly distributed on the screening plate, wherein the aperture of the screening holes is larger than the maximum diameter of the quartz sand particles.
3. The plate magnetic separator for quartz sand according to claim 2, characterized in that: The grinding device (3) comprises two grinding rollers (301) arranged horizontally and in parallel, a grinding gap being provided between the grinding rollers, a material guide cylinder (403) being arranged opposite to the grinding gap, and a grinding motor (302) being provided on the same side of the two grinding rollers, the two grinding motors driving the grinding rollers to rotate synchronously in opposite directions.
4. The plate magnetic separator for quartz sand according to claim 2, characterized in that: The blanking plate (2) comprises a first blanking plate (201) and a second blanking plate (202) which are connected and transitionally arranged with each other. The first blanking plate and the second blanking plate are arranged as a whole to be tilted from top to bottom along the side plate of the magnetic separation box body toward the arc plate. The tilt angle of the first blanking plate is smaller than the tilt angle of the second blanking plate. The first blanking plate is arranged directly below the grinding roller, and the second blanking plate is transitionally connected with the arc plate.
5. The plate magnetic separator for quartz sand according to claim 1, characterized in that: The fine material discharge trough (9) comprises a fine material vertical cylinder (901) matched with the fine material discharge port, a fine material cone cylinder (902) with a larger opening is provided at the lower end of the fine material vertical cylinder, the fine material cone cylinder extends outward to the outside of the magnetic separation box, and the end of the fine material cone cylinder is connected to the fine material storage box (903).
6. The plate magnetic separator for quartz sand according to claim 1, characterized in that: The tailings discharge chute (8) comprises a tailings vertical cylinder (802) matched with a tailings discharge port, a collecting baffle (801) being provided on a cylinder plate of the tailings vertical cylinder away from the rotating cylinder, a tailings cone cylinder (803) with a larger opening being provided at the lower end of the tailings vertical cylinder, the tailings cone cylinder extending outwardly to the outside of the magnetic separation box, and a tailings storage box (804) being connected to the end of the tailings cone cylinder.