Efficient magnetic separation iron removal equipment for high-purity quartz sand
Through the design of multi-stage magnetic separation components and variable distance components, the problem of insufficient slurry flow in high-purity quartz sand magnetic separation equipment is solved, and more efficient iron impurity removal and purity improvement are achieved, reducing energy consumption and maintenance costs.
Patent Information
- Application Number
- CN202510941526.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2025-08-19
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing high-efficiency magnetic separation and removal equipment for high-purity quartz sand, the height between the drum and the top of the discharge box is fixed, resulting in a wide flow section of the quartz sand mortar and a fast flow rate. The middle and bottom slurry cannot fully contact the drum, resulting in leakage of iron impurities and reducing the iron removal effect.
Multi-stage magnetic separation assembly and variable distance assembly are adopted to control the height of the ore discharge body through hydraulic rods and laser rangefinders, adjust the flow space of the ore slurry, increase the contact area between the ore slurry and the magnetic separation cylinder, and separate iron impurities through the three-stage magnetic selection area, and remove residual impurities in combination with the water spray device.
It improves the contact area and flow rate uniformity between the ore slurry and the magnetic separator, reduces the leakage of iron impurities, improves the purity and magnetic separation effect of quartz sand, reduces energy consumption and equipment maintenance frequency, and extends the service life of the equipment.
Smart Images
Figure CN120502423A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of quartz sand magnetic separation, in particular to high-efficiency magnetic separation and iron removal equipment for high-purity quartz sand. Background Art
[0002] Quartz sand is a granular material primarily composed of quartz, typically containing small amounts of impurities such as feldspar, mica, and iron. It is used in a variety of industries, including glassmaking, ceramics, casting, building materials, and the electronics industry. High-purity quartz sand is extremely pure, and iron is one of the most challenging impurities to control in high-purity quartz sand. Magnetic separation utilizes magnetic field differences to efficiently separate iron from quartz sand. It is a key process for iron removal and can directly enhance the purity and application value of quartz sand, enabling its use in high-end applications such as semiconductors and optical fiber.
[0003] In the prior art, when high-purity quartz sand high-efficiency magnetic separation and iron removal equipment is in use, a discharge box is set at the bottom of the drum to guide the quartz sand slurry to flow between the top of the discharge box and the bottom of the drum, thereby facilitating the magnetic separation and iron removal of the quartz sand. However, the height between the drum and the top of the discharge box is usually fixed, the flow cross-section of the quartz sand slurry is wider, and the flow rate is faster. The slurry in the middle and bottom cannot fully contact the drum, which easily causes some iron impurities to not be adsorbed, resulting in missed selection, and reducing the magnetic separation and iron removal effect of the quartz sand.
[0004] Therefore, we propose a high-purity quartz sand high-efficiency magnetic separation and iron removal equipment to solve the problems raised in the above background technology. Summary of the Invention
[0005] The purpose of the present invention is to provide a high-purity quartz sand high-efficiency magnetic separation and iron removal equipment to solve the problem that when the high-purity quartz sand high-efficiency magnetic separation and iron removal equipment proposed in the above background technology is in use, the height between the drum and the top of the discharge box is usually fixed, the quartz sand slurry flow cross-section is wide, the flow rate is faster, and the slurry in the middle and bottom cannot fully contact the drum, which easily causes some iron impurities to not be adsorbed, resulting in missed selection, and reducing the quartz sand magnetic separation and iron removal effect.
[0006] To achieve the above object, the present invention provides the following technical solution: a high-purity quartz sand high-efficiency magnetic separation and iron removal equipment, comprising a multi-stage magnetic separation component, wherein a variable pitch component is arranged inside the multi-stage magnetic separation component;
[0007] The multi-stage magnetic separation assembly includes a magnetic separation tank body, and a slurry guide body is fixedly installed inside the magnetic separation tank body;
[0008] The variable pitch assembly includes an ore discharge body, the front and rear surfaces of which are fixedly connected to a first sealing strip, four top rods are fixedly installed on the bottom of the ore discharge body, a connecting plate is fixedly installed on the bottom ends of the four top rods, a U-shaped plate is fixedly installed on the bottom of the connecting plate, two fixed rods are fixedly installed on the bottom surface inside the U-shaped plate and the bottom of the connecting plate, two fixed plates are fixedly installed on the bottom of the magnetic separation tank body, a center rod is fixedly installed on the opposite side of the two fixed plates, and a lever plate is movably sleeved on the outer surface of the center rod.
[0009] Preferably, the internal movable sleeve of the lever plate is provided with a movable block, the bottom of the magnetic separation tank body is sequentially installed with a mounting frame and a fixed frame by bolts, a laser rangefinder is fixedly installed on the bottom surface of the mounting frame, a movable seat is fixedly installed on the bottom surface of the fixed frame, the internal movability of the movable seat is connected to a hydraulic rod, and a movable block is fixedly installed on the top of the hydraulic rod.
[0010] Preferably, sealing plates are fixedly installed on both sides of the bottom of the ore discharge body, and the front and rear surfaces of the two sealing plates are fixedly connected with second sealing strips. Two support plates are fixedly installed inside the magnetic separation tank near the slurry guide body, and first snap-fit strips are fixedly installed at the top of the outer surface of one side of the two support plates. The outer surfaces of the two first snap-fit strips are fixedly sleeved with first snap-fit sealing sleeves, and the bottoms of the two sealing plates are fixedly installed with second snap-fit strips, and the outer surfaces of the two second snap-fit strips are fixedly sleeved with second snap-fit sealing sleeves.
[0011] Preferably, the bottoms of the two second-engaging sealing sleeves are in contact with the bottom surface inside the slurry guide body, and the four second sealing strips are grouped into two second sealing strips distributed laterally. The outer surfaces of the two groups of second sealing strips are in contact with the front surface wall and the rear surface wall inside the magnetic separation tank body respectively. The bottoms of the two support plates are fixedly installed on the bottom surface inside the slurry guide body, and the tops of the two support plates are in contact with the two sides of the bottom of the ore discharge body respectively. The tops of the two groups of second sealing strips are in contact with the bottoms of the two first sealing strips respectively.
[0012] Preferably, the outer surfaces of the top ends of the four push rods are movably sleeved with springs, one ends of the four springs are fixedly mounted on the top of the slurry guide body, and the other ends of the four springs are fixedly mounted on the bottom of the ore discharge body. The outer surface of the lever plate is movably embedded in the inside of the U-shaped plate, and two limit rods are fixedly mounted on the front and rear surfaces of the lever plate. A rotation groove is opened on the opposite side of the two fixed plates, and one end of the four limit rods is movably embedded in the inside of the two rotation grooves.
[0013] Preferably, four sealing tubes are fixedly installed at the bottom of the slurry guide body, and the bottom ends of the four sealing tubes are fixedly installed on the bottom surface of the magnetic separation cell body. The bottom ends of the four top rods are respectively movable through the slurry guide body and the four sealing tubes to the bottom of the magnetic separation cell body. The outer surface of the ore discharge body is movably embedded in the interior of the magnetic separation cell body, and the outer surfaces of one side of the two first sealing strips are respectively in contact with the front surface wall and the rear surface wall inside the magnetic separation cell body.
[0014] Preferably, a PLC controller is fixedly installed on the edge of the front surface of the magnetic separation tank body, three magnetic separation cylinders are movably embedded in the interior of the magnetic separation tank body, a magnetic system is set inside the three magnetic separation cylinders, gears are set at one end of the three magnetic separation cylinders, and the outer surfaces of the three gears are meshed with chains. A motor is installed on the front surface of the magnetic separation tank body through an auxiliary frame, and the output end of the motor is fixedly connected to the front surface of one of the gears. A first collecting box is fixedly installed on the interior of the magnetic separation tank body near one of the magnetic separation cylinders, and a second collecting box is fixedly installed on the interior of the magnetic separation tank body near the other two magnetic separation cylinders. The rear surfaces of the first collecting box and the two second collecting boxes are fixedly connected to waste pipes.
[0015] Preferably, waterproof plates are installed on the front and rear surfaces of the top of the magnetic separation tank body by bolts, three water pipes are fixedly installed on the rear surface of one of the waterproof plates, and multiple nozzles are fixedly connected to the tops of the three water pipes. The multiple nozzles are evenly divided into three groups, and splash guards are provided on the outer surfaces of the three groups of nozzles, and multiple V-shaped guide strips are fixedly installed on the outer surface of one side of the three splash guards.
[0016] Preferably, one end of the three water spray pipes are fixed through the rear surface of another waterproof board, and the outer surfaces of both sides of the three splash plates are respectively fixedly installed on the opposite side of the two waterproof boards, wherein one end of the two waste pipes are fixed through the rear surface of the magnetic separation tank body, and a slurry discharge protective body is fixedly installed on the top surface of the inner wall of the magnetic separation tank body, and one side outer surface of the slurry discharge protective body is fixedly connected to the top surface of the inner wall of the slurry guide body, and a slurry guide body is fixedly installed inside the magnetic separation tank body away from the slurry discharge protective body, the bottom of the first collecting box is fixedly connected to the top of the slurry guide body, and a discharge pipe is fixedly connected to the edge of the bottom of the slurry guide body, and the bottom end of the discharge pipe is fixedly passed through the bottom of the magnetic separation tank body.
[0017] Preferably, mounting plates are fixedly installed on the front and rear surfaces of the magnetic separation tank body, and support seats are provided at one end of the three magnetic separation cylinders and one end of the three magnetic systems. The six support seats are grouped into three support seats distributed laterally, and two groups of support seats are respectively installed on the top of the two mounting plates by bolts. One end of the three magnetic separation cylinders can be movably penetrated to the front surface of the magnetic separation tank body, and one end of the three magnetic systems can be movably penetrated to the rear surface of the magnetic separation tank body.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] 1. When the present invention is used, the hydraulic rod pulls the movable block to move downward, driving one end of the lever plate to move downward, and the other end thereof to tilt upward, generating an upward thrust on the upper fixed rod, pushing the connecting plate and the top rod to move upward, and lifting the ore discharge body upward. When the distance data received by the PLC controller matches the set data, the hydraulic rod is closed, and the second locking sealing sleeve and the first locking sealing sleeve are tightly fitted together from top to bottom. Through the variable pitch component, an ore discharge body with adjustable variable pitch is set. By increasing the height of the ore discharge body, the distance between the ore discharge body and the magnetic separation drum can be reduced, so that the slurry flow space becomes narrower, and a thinner "slurry film" is formed when the slurry flows. The contact area between the unit volume of slurry and the surface of the magnetic separation drum increases, and the probability of iron impurities being adsorbed increases. After the spacing is reduced, the slurry flow cross-section becomes narrower, and the flow velocity distribution is more uniform, avoiding "missing selection" of iron impurities, and magnetic separation and iron removal are more sufficient, thereby improving the magnetic separation effect.
[0020] 2. When the present invention is used, the quartz sand slurry is transported from the injection port into the flow channel. Under the guidance of the slurry guide, it flows to the top of the ore discharge body and passes through the strong magnetic separation zone, the medium magnetic separation zone and the weak magnetic separation zone in sequence to achieve three-level magnetic separation. The strong magnetic separation preferentially captures strongly magnetic iron impurities, the medium magnetic separation processes medium magnetic impurities, and the weak magnetic separation further separates weakly magnetic fine iron impurities. It can more comprehensively remove various types of iron impurities and improve the purity of the quartz sand. The three-level magnetic separation removes iron in a graded manner and adopts the appropriate magnetic field strength at different stages as needed, avoiding the high energy consumption and excessive wear caused by the strong magnetic field throughout the process, reducing operating costs and equipment maintenance frequency.
[0021] 3. When the present invention is used, water is sprayed onto the outer surface of the magnetic separator through the nozzle to flush out the remaining iron impurities, preventing them from being carried back into the separated slurry and causing secondary pollution. At the same time, the splash guard protects the water pipe, preventing the splashing molten iron mixture from splashing onto the outer surface of the water pipe and corroding the pipe body. The V-shaped guide strip protects the nozzle, preventing the molten iron mixture from flowing to the top of the nozzle and corroding the nozzle, which is beneficial to extending the service life of the water pipe and nozzle. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a first-angle stereoscopic view of a high-efficiency magnetic separation and iron removal device for high-purity quartz sand according to the present invention;
[0023] Figure 2 This is a second-angle stereoscopic view of a high-efficiency magnetic separation and iron removal device for high-purity quartz sand according to the present invention;
[0024] Figure 3 This is a schematic cross-sectional view of the structure of a high-efficiency magnetic separation and iron removal device for high-purity quartz sand according to the present invention;
[0025] Figure 4 This is a schematic diagram of the structure of a multi-stage magnetic separation component in a high-efficiency magnetic separation and iron removal device for high-purity quartz sand according to the present invention;
[0026] Figure 5 This is a schematic cross-sectional view of the structure of a magnetic separation tank in a high-purity quartz sand high-efficiency magnetic separation and iron removal device according to the present invention;
[0027] Figure 6 This is a schematic cross-sectional view of the structure of the second collecting box in the high-purity quartz sand high-efficiency magnetic separation and iron removal equipment of the present invention;
[0028] Figure 7 This is a schematic cross-sectional view of the structure of a sealing tube in a high-purity quartz sand high-efficiency magnetic separation and iron removal device according to the present invention;
[0029] Figure 8 This is a perspective view of the structure of a variable pitch component in a high-efficiency magnetic separation and iron removal device for high-purity quartz sand according to the present invention;
[0030] Figure 9 This is a schematic cross-sectional view of the structure of a lever plate in a high-purity quartz sand high-efficiency magnetic separation and iron removal device according to the present invention;
[0031] Figure 10 The present invention provides a schematic cross-sectional view of the structure of a first engaging sealing sleeve in a high-purity quartz sand high-efficiency magnetic separation and iron removal device.
[0032] In the picture:
[0033] 1. Multi-stage magnetic separation assembly; 101. Magnetic separation tank; 102. Magnetic separation drum; 103. Magnetic system; 104. Slurry guide; 105. Slurry discharge protection; 106. Slurry guide; 107. First collection box; 108. Second collection box; 109. Waste pipe; 110. Spray pipe; 111. Spray head; 112. Splash guard; 113. V-shaped guide strip; 114. Waterproof board; 115. Gear; 116. Chain; 117. Motor; 118. Mounting plate; 119. Support base; 120. Discharge pipe; 121. Sealing tube; 2. Pitch change assembly; 201. Mounting bracket; 202. Laser rangefinder; 203. Fixed plate; 204. Fixed frame; 205. Ore discharge body; 206. First sealing strip; 207. Push rod; 208. Spring; 209. Connecting plate; 210. U-shaped plate; 211. Fixed rod; 212. Center rod; 213. Lever plate; 214. First locking sealing sleeve; 215. Movable block; 216. Hydraulic rod; 217. Movable seat; 218. Limiting rod; 219. Rotating groove; 220. Support plate; 221. First locking strip; 222. Sealing plate; 223. Second sealing strip; 224. Second locking strip; 225. Second locking sealing sleeve; 3. PLC controller. DETAILED DESCRIPTION
[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0035] Example 1: Please refer to Figures 1-10As shown, the present invention provides a technical solution: a high-purity quartz sand high-efficiency magnetic separation and iron removal equipment, including a multi-stage magnetic separation component 1, a variable pitch component 2 is arranged inside the multi-stage magnetic separation component 1; the multi-stage magnetic separation component 1 includes a magnetic separation tank body 101, and a slurry guide body 104 is fixedly installed inside the magnetic separation tank body 101; the variable pitch component 2 includes an ore discharge body 205, the front surface and the rear surface of the ore discharge body 205 are fixedly connected to a first sealing strip 206, four top rods 207 are fixedly installed at the bottom of the ore discharge body 205, the bottom ends of the four top rods 207 are fixedly installed with a connecting plate 209, the bottom of the connecting plate 209 is fixedly installed with a U-shaped plate 210, the bottom surface of the U-shaped plate 210 and the bottom of the connecting plate 209 are fixedly installed with two fixing rods 211, the magnetic separation tank body Two fixed plates 203 are fixedly installed at the bottom of 101, and a center rod 212 is fixedly installed on the opposite side of the two fixed plates 203. A lever plate 213 is movably mounted on the outer surface of the center rod 212. A PLC controller 3 is fixedly installed on the edge of the front surface of the magnetic separation tank body 101, and a movable block 215 is movably mounted on the inner sleeve of the lever plate 213. The bottom of the magnetic separation tank body 101 is sequentially mounted with a mounting frame 201 and a fixed frame 204 by bolts. A laser rangefinder 202 is fixedly installed on the bottom surface of the mounting frame 201, and a movable seat 217 is fixedly installed on the bottom surface of the fixed frame 204. The movable seat 217 is movably connected to a hydraulic rod 216, and a movable block 215 is fixedly mounted on the top of the hydraulic rod 216. The two bottom surfaces of the ore discharge body 205 are fixedly mounted. A sealing plate 222 is fixedly installed on each side, and a second sealing strip 223 is fixedly connected to the front and rear surfaces of the two sealing plates 222. Two support plates 220 are fixedly installed on the inside of the magnetic separation tank 101 near the slurry guide body 104. A first snap-fitting strip 221 is fixedly installed on the top of the outer surface of one side of the two support plates 220. The outer surfaces of the two first snap-fitting strips 221 are fixedly sleeved with a first snap-fitting sealing sleeve 214. The bottoms of the two sealing plates 222 are fixedly installed with a second snap-fitting strip 224. The outer surfaces of the two second snap-fitting strips 224 are fixedly sleeved with a second snap-fitting sealing sleeve 225. The bottoms of the two second snap-fitting sealing sleeves 225 are in contact with the bottom surface of the inside of the slurry guide body 104. The four second sealing strips 223 are distributed horizontally. The two second sealing strips 223 form a group. The outer surfaces of the two groups of second sealing strips 223 are respectively in contact with the front surface wall and the rear surface wall inside the magnetic separation tank body 101. The bottoms of the two support plates 220 are fixedly installed on the bottom surface inside the slurry guide body 104. The tops of the two support plates 220 are respectively in contact with the two sides of the bottom of the ore discharge body 205. The tops of the two groups of second sealing strips 223 are respectively in contact with the bottoms of the two first sealing strips 206. The outer surfaces of the top ends of the four top rods 207 are movably sleeved with springs 208. One end of the four springs 208 is fixedly installed on the top of the slurry guide body 104, and the other ends of the four springs 208 are fixedly installed on the bottom of the ore discharge body 205. The outer surface of the lever plate 213 is movably embedded in the interior of the U-shaped plate 210.Two limiting rods 218 are fixedly mounted on the front and rear surfaces of the lever plate 213. A rotation slot 219 is defined on opposite sides of the two fixed plates 203. One end of each of the four limiting rods 218 is movably embedded within the two rotation slots 219. Four sealing tubes 121 are fixedly mounted on the bottom of the slurry guide 104. The bottom ends of the four sealing tubes 121 are fixedly mounted on the bottom surface of the magnetic separation tank 101. The bottom ends of the four top rods 207 movably penetrate the slurry guide 104 and the four sealing tubes 121 to the bottom of the magnetic separation tank 101. The outer surface of the ore discharge body 205 is movably embedded within the magnetic separation tank 101. The outer surfaces of the two first sealing strips 206 are in contact with the front and rear walls of the magnetic separation tank 101.
[0036] In this embodiment, when in use, the magnetic system 103, the motor 117, the laser rangefinder 202, the hydraulic rod 216 and the PLC controller 3 are electrically connected. Figure 10 As shown, the bottom of the first sealing strip 206 is fixedly connected to the top of the second sealing strip 223, the bottom of the second sealing strip 223 is fixedly connected to the top of the second locking sealing sleeve 225, the bottom of the second sealing strip 223 is in contact with the bottom surface of the slurry guide body 104, the first locking sealing sleeve 214 is in contact with the sealing plate 222 and the second sealing strip 223, and the second locking sealing sleeve 225 is in contact with the support plate 220. The fixing rod 211 at the bottom of the connecting plate 209 is longer, and the fixing rod 211 inside the U-shaped plate 210 is shorter. The two ends of the fixing rod 211 at the bottom are in contact with the inner wall of the groove at the bottom of the lever plate 213. The lever plate 213 is located between the upper and lower fixing rods 211, as shown in FIG. Figure 9As shown. Start the hydraulic rod 216 and the laser rangefinder 202. The top of the hydraulic rod 216 pulls the movable block 215 downward, and under the limit of the center rod 212, it drives one end of the lever plate 213 to move downward, and causes the other end of the lever plate 213 to tilt upward, so that the bottom fixed rod 211 moves out of the bottom groove and the bottom end of the top fixed rod 211 enters the top groove. As one end of the lever plate 213 continues to pull downward, its other end continues to tilt upward, generating an upward thrust on the top fixed rod 211, pushing the connecting plate 209 upward, further pushing the top rod 207 upward, pushing the ore discharge body 205 upward, and at the same time driving the sealing plate 222, the second sealing strip 223 and the second engaging sealing sleeve 225 to move upward on the outer surface of the support plate 220. While the U-shaped plate 210 moves upward, the laser rangefinder 202 emits a laser to the bottom of the U-shaped plate 210, receives the reflected laser beam, detects the distance between the U-shaped plate 210, and transmits the distance data to the PLC controller 3 in the form of an electrical signal for identification and comparison. When the distance moved by the U-shaped plate 210 matches the set distance data, the PLC controller 3 controls the hydraulic rod 216 to close. At this time, the second locking bar 224 and the first locking bar 221 are locked together up and down, and the second locking sealing sleeve 225 and the first locking sealing sleeve 214 are tightly fitted together up and down, so that the sealing plate 222 and the support plate 220 remain sealed, without affecting the subsequent transportation and magnetic separation of the quartz sand slurry. By means of the variable pitch component 2, a discharge body 205 with adjustable variable pitch is provided. By increasing the height of the discharge body 205, the distance between the discharge body 205 and the magnetic separation drum 102 can be reduced, so that the slurry flow space becomes narrower, and a thinner "slurry film" is formed when the slurry flows. The contact area between the unit volume of slurry and the surface of the magnetic separation drum 102 is increased, and the probability of iron impurities being adsorbed is increased. Moreover, after the spacing is reduced, the slurry flow cross-section becomes narrower and the flow velocity distribution is more uniform, thus avoiding "missing selection" of iron impurities, making magnetic separation and iron removal more sufficient, and improving the magnetic separation effect. This solves the problem that when the high-efficiency magnetic separation and iron removal equipment for high-purity quartz sand is in use, the height between the drum and the top of the discharge box is usually fixed, the quartz sand slurry flow cross-section is wider, the flow velocity is faster, and the slurry in the middle and bottom cannot fully contact the drum, which easily causes some iron impurities to not be adsorbed, resulting in missed selection, thereby reducing the magnetic separation and iron removal effect of quartz sand.
[0037] Example 2: Figure 1-Figure 7As shown, the multi-stage magnetic separation component 1 includes a magnetic separation tank body 101, a slurry guide 104 is fixedly installed inside the magnetic separation tank body 101, a PLC controller 3 is fixedly installed on the edge of the front surface of the magnetic separation tank body 101, three magnetic separation cylinders 102 are movably embedded in the interior of the magnetic separation tank body 101, a magnetic system 103 is set inside the three magnetic separation cylinders 102, a gear 115 is set at one end of the three magnetic separation cylinders 102, and the outer surfaces of the three gears 115 are meshed with a chain 116. A motor 117 is installed on the front surface of the magnetic separation tank body 101 through an auxiliary frame, and the output end of the motor 117 is fixedly connected to the front surface of one of the gears 115. The interior of the magnetic separation tank body 101 is close to one of the magnetic separation A first collecting box 107 is fixedly installed at the cylinder 102, and a second collecting box 108 is fixedly installed at the inside of the magnetic separation tank 101 near the other two magnetic separation cylinders 102. The rear surfaces of the first collecting box 107 and the two second collecting boxes 108 are fixedly connected with a waste pipe 109. The front surface and the rear surface of the top of the magnetic separation tank 101 are fixed with waterproof plates 114 by bolts. Three water pipes 110 are fixedly installed on the rear surface of one of the waterproof plates 114. The tops of the three water pipes 110 are fixedly connected with a plurality of nozzles 111. The plurality of nozzles 111 are evenly divided into three groups. The outer surfaces of the three groups of nozzles 111 are provided with splash plates 112. The outer surfaces of the three splash plates 112 are The surfaces are fixedly installed with a plurality of V-shaped guide strips 113, one end of the three water spray pipes 110 is fixed to the rear surface of another waterproof plate 114, and the outer surfaces of both sides of the three splash plates 112 are fixedly installed on the opposite side of the two waterproof plates 114, wherein one end of the two waste pipes 109 is fixed to the rear surface of the magnetic separation tank body 101, and a slurry discharge protection body 105 is fixedly installed on the top surface of the interior of the magnetic separation tank body 101, and the outer surface of one side of the slurry discharge protection body 105 is fixedly connected to the top surface of the inner wall of the slurry guide body 104, and a slurry guide body 106 is fixedly installed on the interior of the magnetic separation tank body 101 away from the slurry discharge protection body 105, and the bottom of the first collecting box 107 is connected to the top of the slurry guide body 106. The slurry guide body 104 is fixedly connected to the edge of the bottom of the slurry guide body 104, and the bottom end of the discharge pipe 120 is fixedly connected to the bottom of the magnetic separation tank body 101. The front and rear surfaces of the magnetic separation tank body 101 are fixedly installed with mounting plates 118. One end of the three magnetic separation cylinders 102 and one end of the three magnetic systems 103 are each provided with a support seat 119. The six support seats 119 are grouped with three support seats 119 distributed horizontally. The two groups of support seats 119 are respectively installed on the top of the two mounting plates 118 by bolts. One end of the three magnetic separation cylinders 102 is movable to penetrate to the front surface of the magnetic separation tank body 101, and one end of the three magnetic systems 103 is movable to penetrate to the rear surface of the magnetic separation tank body 101.
[0038] In this embodiment, during operation, a slurry flow channel is formed between the slurry guide 104 and the magnetic separation tank 101. Quartz sand slurry is fed into the flow channel from the left injection port. The slurry then flows along the flow channel to the right side of the magnetic separation tank 101 and, guided by the slurry guide 106, flows to the top of the ore discharge body 205, where it sequentially contacts the three magnetic separation drums 102. Motor 117 is pre-activated, driving the connected gear 115 to rotate. This, in turn, is coupled to the chain 116, driving the other two gears 115 to rotate, thereby driving the three magnetic separation drums 102 to rotate simultaneously in the same direction. The three magnetic systems 103 are activated. Under the magnetic action of the corresponding magnetic systems 103, iron impurities are attracted to the outer surfaces of the magnetic separation drums 102 during slurry flow and are transported to the corresponding first and second collection boxes 107 and 108. The high-purity quartz sand slurry, after magnetic separation, continues to flow along the left side of the slurry guide 104, ultimately being discharged through the discharge pipe 120 as the magnetically separated quartz sand. From right to left, the three magnetic systems 103 are strong, medium, and weak, respectively, dividing the magnetic separation zone into three regions of varying magnetic strength. As the slurry flows, it first passes through the strong magnetic separation zone, then the medium magnetic separation zone, and finally the weak magnetic separation zone, achieving three-stage magnetic separation. Strong magnetic separation prioritizes the capture of highly magnetic iron impurities, medium magnetic separation processes those with medium magnetism, and weak magnetic separation further separates fine, weakly magnetic iron impurities. This more comprehensively removes all types of iron impurities and improves the purity of the quartz sand. The three-stage magnetic separation removes iron in stages, using appropriate magnetic field strengths as needed at different stages. This avoids the high energy consumption and excessive wear caused by a strong magnetic field throughout the entire process, reducing operating costs and equipment maintenance frequency.
[0039] Furthermore, after the adsorbed iron impurities leave the magnetic separation zone, they lose their adsorption force and automatically fall into the corresponding first and second collection boxes 107 and 108. At the same time, the external water spraying equipment delivers flushing water to the water spray pipe 110, and then sprays water onto the outer surface of the magnetic separation drum 102 through multiple nozzles 111, flushing away the iron impurities remaining on the outer surface of the magnetic separation drum 102, preventing the iron impurities from being carried back into the separated slurry and causing secondary contamination. At the same time, under the action of the splash guard 112, the water spray pipe 110 is protected to prevent the splashing molten iron mixture from splashing onto the outer surface of the water spray pipe 110 and accumulating on the outside of the pipe body, forming stubborn attachments and causing erosion of the pipe body. A V-shaped guide bar 113 is provided above the nozzle 111. When the molten iron mixture or water droplets on the side of the splash plate 112 flow downward, the V-shaped guide bar 113 can protect the nozzle 111, separate the flowing objects, and prevent the molten iron mixture from flowing to the top of the nozzle 111 and causing corrosion to the nozzle 111, which is beneficial to improving the service life of the water pipe 110 and the nozzle 111.
[0040] The effect and working principle achieved by the entire mechanism are as follows: the hydraulic rod 216 and the laser rangefinder 202 are started, the hydraulic rod 216 pulls the movable block 215 to move downward, and under the limit of the center rod 212, drives one end of the lever plate 213 to move downward, and makes the other end of the lever plate 213 tilt upward, generating an upward thrust on the top fixed rod 211, pushing the connecting plate 209 to move upward, further pushing the push rod 207 to move upward, pushing the ore discharge body 205 upward, and at the same time driving the sealing plate 222, the second sealing strip 223 and the second engaging sealing sleeve 225 to move upward on the outer surface of the support plate 220. As the U-shaped plate 210 moves upward, the laser rangefinder 202 detects the distance between it and the U-shaped plate 210 and transmits the distance data to the PLC controller 3 for identification and comparison. When the distance moved by the U-shaped plate 210 matches the set distance data, the PLC controller 3 controls the hydraulic rod 216 to close. At this time, the second locking sealing sleeve 225 and the first locking sealing sleeve 214 are tightly fitted together. By increasing the height of the ore discharge body 205 through the variable pitch component 2, the distance between it and the magnetic separation drum 102 can be reduced, narrowing the slurry flow space. The motor 117 and the three magnetic systems 103 are started in advance. The output end of the motor 117 drives the connected gear 115 to rotate. Under the connection of the chain 116, it drives the other two gears 115 to rotate, thereby driving the three magnetic separation drums 102 to rotate simultaneously in the same direction. The quartz sand slurry is delivered from the injection port on the left into the flow channel. Guided by the slurry guide 106, it flows to the top of the ore discharge body 205 and contacts the three magnetic separation drums 102 in sequence. Under the magnetic action of the corresponding magnetic system 103, the iron impurities are adsorbed onto the outer surface of the magnetic separation drum 102. The high-purity quartz sand slurry after magnetic separation continues to flow along the left side of the slurry guide 104, and finally discharged through the discharge pipe 120 as the magnetically separated quartz sand. As the magnetic separation drum 102 rotates, the adsorbed iron impurities lose their adsorption force after leaving the magnetic separation area and automatically fall into the corresponding first collection box 107 and second collection box 108. At the same time, the external water spraying equipment delivers flushing water to the water spray pipe 110, and then sprays water onto the outer surface of the magnetic separation drum 102 through multiple nozzles 111 to flush off the iron impurities remaining on the outer surface of the magnetic separation drum 102. At the same time, under the action of the splash plate 112, the water spray pipe 110 is protected, and the V-shaped guide strip 113 protects the nozzle 111.
[0041] Among them, the magnetic system 103, the motor 117, the laser rangefinder 202, the hydraulic rod 216 and the PLC controller 3 are all existing technologies, and their components and operating principles are all public technologies, so no further explanation is given here.
[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A high-efficiency magnetic separation and iron removal device for high-purity quartz sand, comprising a multi-stage magnetic separation assembly (1), characterized in that: A variable pitch component (2) is provided inside the multi-stage magnetic separation component (1); The multi-stage magnetic separation assembly (1) comprises a magnetic separation tank (101), wherein a slurry guide (104) is fixedly installed inside the magnetic separation tank (101); The variable pitch assembly (2) includes an ore discharge body (205), the front surface and the rear surface of the ore discharge body (205) are fixedly connected to a first sealing strip (206), the bottom of the ore discharge body (205) is fixedly installed with four top rods (207), the bottom ends of the four top rods (207) are fixedly installed with a connecting plate (209), the bottom of the connecting plate (209) is fixedly installed with a U-shaped plate (210), the bottom surface inside the U-shaped plate (210) and the bottom of the connecting plate (209) are fixedly installed with two fixed rods (211), the bottom of the magnetic separation tank (101) is fixedly installed with two fixed plates (203), the opposite side of the two fixed plates (203) is fixedly installed with a center rod (212), and the outer surface of the center rod (212) is movably sleeved with a lever plate (213).
2. The high-purity quartz sand high-efficiency magnetic separation and iron removal equipment according to claim 1, characterized in that: The lever plate (213) is movably sleeved with a movable block (215); the bottom of the magnetic separation tank (101) is sequentially mounted with a mounting frame (201) and a fixed frame (204) via bolts; a laser rangefinder (202) is fixedly mounted on the bottom surface of the mounting frame (201); a movable seat (217) is fixedly mounted on the bottom surface of the fixed frame (204); a hydraulic rod (216) is movably connected to the inside of the movable seat (217); and a movable block (215) is fixedly mounted on the top end of the hydraulic rod (216).
3. The high-purity quartz sand high-efficiency magnetic separation and iron removal equipment according to claim 2, characterized in that: Sealing plates (222) are fixedly installed on both sides of the bottom of the ore discharge body (205), and the front and rear surfaces of the two sealing plates (222) are fixedly connected with second sealing strips (223). Two support plates (220) are fixedly installed inside the magnetic separation tank (101) near the slurry guide body (104). A first locking strip (221) is fixedly installed on the top of the outer surface of one side of the two support plates (220). The outer surfaces of the two first locking strips (221) are fixedly sleeved with a first locking sealing sleeve (214). The bottoms of the two sealing plates (222) are fixedly installed with a second locking strip (224), and the outer surfaces of the two second locking strips (224) are fixedly sleeved with a second locking sealing sleeve (225).
4. The high-purity quartz sand high-efficiency magnetic separation and iron removal equipment according to claim 3 is characterized in that: The bottoms of the two second locking sealing sleeves (225) are in contact with the bottom surface inside the slurry guide body (104); the two second sealing strips (223) distributed laterally form a group; the outer surfaces of the two groups of second sealing strips (223) are in contact with the front surface wall and the rear surface wall inside the magnetic separation tank body (101); the bottoms of the two support plates (220) are fixedly installed on the bottom surface inside the slurry guide body (104); the tops of the two support plates (220) are in contact with the two sides of the bottom of the ore discharge body (205); and the tops of the two groups of second sealing strips (223) are in contact with the bottoms of the two first sealing strips (206).
5. The high-purity quartz sand high-efficiency magnetic separation and iron removal equipment according to claim 4 is characterized in that: The outer surfaces of the top ends of the four push rods (207) are movably sleeved with springs (208), one end of the four springs (208) is fixedly mounted on the top of the slurry guide body (104), and the other end of the four springs (208) is fixedly mounted on the bottom of the ore discharge body (205). The outer surface of the lever plate (213) is movably embedded in the interior of the U-shaped plate (210), and two limiting rods (218) are fixedly mounted on the front and rear surfaces of the lever plate (213). A rotation groove (219) is provided on the opposite side of the two fixed plates (203), and one end of the four limiting rods (218) is movably embedded in the interior of the two rotation grooves (219).
6. The high-purity quartz sand high-efficiency magnetic separation and iron removal equipment according to claim 5, characterized in that: Four sealing tubes (121) are fixedly installed at the bottom of the slurry guide body (104), and the bottom ends of the four sealing tubes (121) are fixedly installed on the bottom surface of the magnetic separation tank body (101). The bottom ends of the four top rods (207) are respectively movable through the slurry guide body (104) and the four sealing tubes (121) to the bottom of the magnetic separation tank body (101). The outer surface of the ore discharge body (205) is movably embedded in the interior of the magnetic separation tank body (101), and the outer surfaces of one side of the two first sealing strips (206) are respectively in contact with the front surface wall and the rear surface wall inside the magnetic separation tank body (101).
7. The high-purity quartz sand high-efficiency magnetic separation and iron removal equipment according to claim 1 is characterized in that: A PLC controller (3) is fixedly installed on the edge of the front surface of the magnetic separation tank (101), three magnetic separation cylinders (102) are movably embedded inside the magnetic separation tank (101), a magnetic system (103) is set inside the three magnetic separation cylinders (102), a gear (115) is set at one end of the three magnetic separation cylinders (102), and the outer surfaces of the three gears (115) are meshed and connected with a chain (116), and a motor (116) is installed on the front surface of the magnetic separation tank (101) through an auxiliary frame. 7), the output end of the motor (117) is fixedly connected to the front surface of one of the gears (115), a first collection box (107) is fixedly installed inside the magnetic separation tank (101) near one of the magnetic separation cylinders (102), and a second collection box (108) is fixedly installed inside the magnetic separation tank (101) near the other two magnetic separation cylinders (102), and the rear surfaces of the first collection box (107) and the two second collection boxes (108) are fixedly connected to waste pipes (109).
8. The high-purity quartz sand high-efficiency magnetic separation and iron removal equipment according to claim 7, characterized in that: Waterproof plates (114) are installed on the front and rear surfaces of the top of the magnetic separation tank (101) by bolts, three water spray pipes (110) are fixedly installed on the rear surface of one of the waterproof plates (114), and the tops of the three water spray pipes (110) are fixedly connected to a plurality of nozzles (111), and the plurality of nozzles (111) are evenly divided into three groups. Splashproof plates (112) are provided on the outer surfaces of the three groups of nozzles (111), and a plurality of V-shaped guide strips (113) are fixedly installed on the outer surfaces of one side of the three splashproof plates (112).
9. The high-purity quartz sand high-efficiency magnetic separation and iron removal equipment according to claim 8, characterized in that: One end of each of the three water spray pipes (110) is fixedly connected to the rear surface of another waterproof plate (114), and the outer surfaces of both sides of the three splash plates (112) are fixedly installed on the opposite sides of the two waterproof plates (114). One end of each of the two waste pipes (109) is fixedly connected to the rear surface of the magnetic separation tank (101), and a slurry discharge protection body (105) is fixedly installed on the top surface of the interior of the magnetic separation tank (101). The slurry discharge protection body (105) The outer surface of one side is fixedly connected to the top surface of the inner wall of the slurry guide body (104), a slurry guide body (106) is fixedly installed inside the magnetic separation tank body (101) away from the slurry discharge protection body (105), the bottom of the first collecting box (107) is fixedly connected to the top of the slurry guide body (106), and a discharge pipe (120) is fixedly connected to the edge of the bottom of the slurry guide body (104), and the bottom end of the discharge pipe (120) is fixedly passed through the bottom of the magnetic separation tank body (101).
10. The high-efficiency magnetic separation and iron removal equipment for high-purity quartz sand according to claim 9, characterized in that: The front and rear surfaces of the magnetic separation tank body (101) are fixedly mounted with mounting plates (118); one end of the three magnetic separation cylinders (102) and one end of the three magnetic systems (103) are provided with support seats (119); three support seats (119) distributed laterally form a group of six support seats (119); two groups of support seats (119) are respectively mounted on the top of two mounting plates (118) by bolts; one end of the three magnetic separation cylinders (102) is movable through the front surface of the magnetic separation tank body (101); one end of the three magnetic systems (103) is movable through the rear surface of the magnetic separation tank body (101).