A high-efficiency iron-removal magnetic separation device for ore pulp

Abstract

The utility model relates to a technical field of removing iron and magnetic separation, and disclose a kind of high-efficiency removing iron and magnetic separation device of ore pulp, including magnetic separation box and magnetic separation component and pretreatment component and cleaning component, magnetic separation component is set on magnetic separation box, pretreatment component, pretreatment component is set on magnetic separation box, cleaning component, cleaning component is set on magnetic separation box, by the driving motor of the rear surface of starting pretreatment jar, its output end drives stirring shaft rotation, stirring shaft drives the synchronous rotation of multiple stirring rods of outer wall, can break the reunion particle in kaolin ore pulp, make ore pulp concentration uniform, lay stable foundation for subsequent magnetic separation deironing, with the continuous rotation of magnetic separation cylinder, the ferromagnetic impurities adsorbed on its surface are brought to the scraper at right side, scraper and magnetic separation cylinder surface closely adhere to, can scrape impurities from the surface of magnetic separation cylinder;At the same time, the external water inlet pipe and the external water inlet pipe connector on connecting pipe are connected, and the spray head sprays clean water on the surface of the magnetic separation cylinder, washing residual fine impurities.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separation technology for iron removal, specifically a high-efficiency magnetic separation device for removing iron from slurry. Background Technology

[0002] In the processing of minerals such as kaolin, ferromagnetic impurities in the slurry directly affect key indicators such as whiteness and purity of subsequent products. Therefore, magnetic separation for iron removal is one of the core processes in mineral processing. Currently, kaolin slurry is prone to agglomeration and block formation during transportation. Existing equipment lacks a targeted pretreatment process. When the agglomerated slurry directly enters the magnetic separation process, the ferromagnetic impurities encased inside cannot fully contact the magnetic field, resulting in incomplete iron removal and residual iron impurities affecting product quality. On the other hand, after the magnetic separator adsorbs iron impurities, the existing cleaning methods are mostly simple scraping with a single scraper. This not only fails to remove the fine impurities remaining on the surface, but also allows impurities to accumulate on the surface of the magnetic separator after long-term use, gradually weakening the magnetic field's adsorption capacity and causing a continuous decline in magnetic separation efficiency. This necessitates frequent shutdowns for manual cleaning, which interrupts the production process and increases maintenance costs. The aforementioned problems of "incomplete iron removal" and "easy decline in magnetic separation efficiency" are compounded. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a high-efficiency magnetic separation device for removing iron from slurry. It solves the problem that existing cleaning methods mostly rely on a single scraper, which not only makes it difficult to remove fine impurities remaining on the surface, but also causes impurities to accumulate on the surface of the magnetic separator after long-term use, gradually weakening the magnetic field adsorption capacity and leading to a continuous decline in magnetic separation efficiency. This necessitates frequent shutdowns for manual cleaning, which interrupts the production process and increases maintenance costs.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency iron removal magnetic separation device for slurry, comprising a magnetic separation box and a magnetic separation component, wherein the magnetic separation component is disposed on the magnetic separation box; The pretreatment component is installed on the magnetic separator. The cleaning component is mounted on the magnetic separator and includes two second concave mounting brackets, which are respectively fixedly connected to the front and rear surfaces of the magnetic separator. Among them, the two second concave mounting brackets are fixedly connected to the opposite sides of the connecting pipe, and the upper surface of the connecting pipe is fixedly connected to the same external water inlet pipe connector as the inside. Multiple nozzles are fixedly installed on the lower surface of the connecting pipe, and all nozzles are tilted to the right.

[0005] Preferably, the cleaning assembly further includes two first concave mounting brackets, which are respectively fixedly connected to the front and rear surfaces of the magnetic separator, and both first concave mounting brackets are located to the right of the two second concave mounting brackets. In this case, rectangular plates are fixedly connected to the opposite surfaces of the two first concave mounting brackets.

[0006] Preferably, the rectangular plate is inclined, a waste collection groove is provided on the upper surface of the rectangular plate, and a scraper is provided on the left side of the rectangular plate; Two L-shaped discharge pipes are fixedly connected to the lower surface of the rectangular plate, and both L-shaped discharge pipes are connected to the waste collection trough.

[0007] Preferably, the pretreatment component includes an arc-shaped discharge box, which is fixedly connected to the right side of the magnetic separator. The arc-shaped discharge box communicates with the interior of the magnetic separator, and a pretreatment tank communicating with the interior of the arc-shaped discharge box is fixedly connected to the upper surface of the arc-shaped discharge box. The pretreatment tank has a drive motor fixedly installed on its rear surface.

[0008] Preferably, the output end of the drive motor is fixedly connected to a stirring shaft, the front end of which rotates through the interior of the pretreatment tank and is rotatably connected to the inner wall of the pretreatment tank. The outer wall of the stirring shaft is fixedly connected with multiple stirring rods, and the interior of the pretreatment tank is equipped with four arc-shaped plates arranged in a cross shape, with the arc-shaped parts of the four arc-shaped plates fitting against the inner wall of the pretreatment tank. The four arc-shaped plates are fixedly connected to the corresponding stirring rods, and a rectangular feed box communicating with the interior of the pretreatment tank is fixedly connected to the upper surface of the pretreatment tank.

[0009] Preferably, the magnetic separation assembly includes a semi-circular cover, which is fixedly connected to the inside of the magnetic separation box. A magnetic separation cylinder is installed inside the semi-circular cover. The inside of the magnetic separation cylinder is a vacuum structure, and a fixed shaft is installed inside the magnetic separation cylinder. The fixed shaft has two ends that rotate through the front and rear surfaces of the magnetic separator drum and the semi-circular cover and magnetic separator box, respectively.

[0010] Preferably, the magnetic separator is equipped with a magnetic system inside, consisting of 5-7 magnetic poles, with the main permanent magnet material being strontium ferrite. The magnetic system is fixed on the cylindrical shaft and does not rotate during operation. The rear surface of the magnetic separator is fixedly equipped with a motor, and the output end of the motor is fixedly connected to a fixed shaft.

[0011] Preferably, a baffle is fixedly connected to the left side of the lower surface of the semi-circular cover, and the baffle is fixedly connected to the bottom of the magnetic separator. Among them, a rectangular feed chute communicating with the interior is opened on the left side of the lower surface of the semi-circular cover, and the rectangular feed chute is located on the right side of the baffle; Among them, two rectangular discharge boxes that communicate with the interior are fixedly connected to the right side of the lower surface of the semi-circular cover, and both rectangular discharge boxes are tilted to the right. The lower ends of the two rectangular discharge boxes extend through the lower surface of the magnetic separator, and the scraper is in contact with the surface of the magnetic separator.

[0012] Preferably, the stirring rod can be replaced with an anti-tangling stirring rod with blades.

[0013] Preferably, the stirring rod can be replaced with a serrated stirring rod. (III) Beneficial Effects Compared with the prior art, this utility model provides a high-efficiency magnetic separation device for removing iron from slurry, which has the following beneficial effects: By starting the drive motor on the rear surface of the pretreatment tank, its output drives the stirring shaft to rotate. The stirring shaft drives multiple stirring rods on the outer wall to rotate synchronously, which breaks up the agglomerated particles in the kaolin slurry, making the slurry concentration uniform and laying a stable foundation for subsequent magnetic separation to remove iron. As the magnetic separator continues to rotate, the ferromagnetic impurities adsorbed on its surface are carried to the scraper on the right side. The scraper is in close contact with the surface of the magnetic separator, which can scrape the impurities off the surface of the magnetic separator. At the same time, the external water inlet pipe is connected to the external water inlet connector on the connecting pipe. Clean water is delivered through the connecting pipe to multiple right-tilted nozzles. The nozzles spray clean water onto the surface of the magnetic separator to wash away residual fine impurities, ensuring that the surface of the magnetic separator is clean and avoiding the accumulation of impurities that will affect the efficiency of subsequent magnetic separation, thus maintaining the long-term stable operation of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the high-efficiency iron removal magnetic separation device for slurry of this utility model; Figure 2 This is a schematic diagram of the motor of this utility model; Figure 3 This is a schematic diagram of the stirring shaft of this utility model; Figure 4 This is a schematic diagram of the rectangular discharge box of this utility model; Figure 5 This is a schematic diagram of the replaceable stirring rod of this utility model; Figure 6 This is a schematic diagram of the replacement stirring rod of this utility model.

[0015] In the diagram: 1. Magnetic separator box; 2. Magnetic separator cylinder; 3. Semi-circular cover; 4. Fixed shaft; 5. First concave mounting bracket; 6. Second concave mounting bracket; 7. Pretreatment tank; 8. Connecting pipe; 9. Nozzle; 10. Drive motor; 11. Arc-shaped discharge box; 12. Motor; 13. Rectangular plate; 14. Stirring rod; 15. Stirring shaft; 16. Arc-shaped plate; 17. Rectangular discharge box; 18. Rectangular feed chute; 19. Baffle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-6 This utility model provides a new technical solution: a high-efficiency iron removal magnetic separation device for slurry, including a semi-circular cover 3 fixedly connected inside the magnetic separation box 1 to accommodate the magnetic separation cylinder 2, a baffle 19 fixedly connected to the left side of the lower surface and a rectangular feed chute 18, and two rectangular discharge boxes 17 fixedly connected to the right side of the lower surface to guide the flow path of the slurry and ensure that the slurry fully contacts the magnetic separation cylinder 2.

[0018] The magnetic separator 2 is set inside the semi-circular cover 3, which is a vacuum. The front and rear ends are connected by a fixed shaft 4 and rotate synchronously with the fixed shaft 4 (rotation direction from left to right). The outer surface is used to adsorb ferromagnetic impurities in the slurry.

[0019] The fixed shaft 4 rotates through the front and rear ends of the magnetic separator 2, the semi-circular cover 3 and the front and rear surfaces of the magnetic separator box 1, respectively. The front end is fixedly connected to the output end of the motor 12, and the magnetic system is fixedly installed on the outer wall to transmit the motor power to drive the magnetic separator 2 to rotate, while providing a fixed carrier for the magnetic system.

[0020] The magnetic system is set inside the magnetic separator 2 and fixed on the fixed shaft 4 (it does not rotate during operation). It consists of 5-7 magnetic poles, and the main permanent magnet material is strontium ferrite. It generates a stable magnetic field to adsorb ferromagnetic impurities, forming a magnetic separation structure where the drum rotates but the magnet does not.

[0021] The motor 12 is fixedly installed on the rear surface of the magnetic separator 1, and its output end is fixedly connected to the fixed shaft 4 to provide power for the rotation of the fixed shaft 4 and the magnetic separator 2.

[0022] The baffle 19 is fixedly connected between the left side of the lower surface of the semi-circular cover 3 and the bottom of the magnetic separator 1, preventing the slurry that has not been magnetically separated from flowing directly into the rectangular discharge box 17 on the right side, and forcing the slurry to pass through the surface of the magnetic separator 2 to remove iron, thereby improving the thoroughness of iron removal.

[0023] A rectangular feed chute 18 is located on the left side of the lower surface of the semi-circular cover 3 (to the right of the baffle 19), and communicates with the interior of the semi-circular cover 3, allowing the pre-treated slurry to flow into the semi-circular cover 3 and guide the slurry to fall onto the outer surface of the magnetic separator 2.

[0024] There are two rectangular discharge boxes 17, which are fixedly connected to the right side of the lower surface of the semi-circular cover 3. Both are tilted to the right, and their lower ends extend through the lower surface of the magnetic separator 1 and communicate with the interior of the semi-circular cover 3. They are used to discharge the non-magnetic kaolin slurry after iron removal.

[0025] The scraper is located on the left side of the rectangular plate 13 and is in close contact with the surface of the magnetic separator 2. It is used to scrape off the ferromagnetic impurities adsorbed on the outer surface of the magnetic separator 2, ensuring that the impurities are removed from the magnetic separator.

[0026] The arc-shaped discharge box 11 is fixedly connected between the right side of the magnetic separator 1 and the lower surface of the pretreatment tank 7, and communicates with the interior of the magnetic separator 1 and the pretreatment tank 7. It guides the pretreated slurry from the pretreatment tank 7 into the magnetic separator 1, and achieves smooth conveying by gravity.

[0027] The pretreatment tank 7 is fixedly connected to the upper surface of the arc-shaped discharge box 11, the drive motor 10 is fixedly installed on the rear surface, and the rectangular feed box is fixedly connected to the upper surface. The tank contains kaolin slurry and is subjected to stirring and pretreatment.

[0028] Drive motor 10: It is fixedly installed on the rear surface of the pretreatment tank 7, and its output end is fixedly connected to the stirring shaft 15 to provide power for the rotation of the stirring shaft 15 and the stirring rod 14.

[0029] Stirring shaft 15: The front end rotates through the interior of the pretreatment tank 7 and is rotatably connected to the inner wall of the tank. The rear end is connected to the output end of the drive motor 10. Multiple stirring rods 14 are fixedly connected to the outer wall, which transmits the power of the drive motor to drive the stirring rods to rotate.

[0030] There are two second concave mounting brackets 6, which are fixedly connected to the front and rear surfaces of the magnetic separator 1 respectively, and the connecting pipes 8 are fixedly connected to the opposite surfaces to support the connecting pipes 8 and the nozzles 9, ensuring the stability of the nozzle position.

[0031] The connecting pipe 8 is fixedly connected to the opposite sides of the two second concave mounting brackets 6. The upper surface is fixedly connected to the external water inlet pipe connector, and the lower surface is fixedly installed with multiple nozzles 9 for conveying clean water to the nozzles and providing a water channel for rinsing the magnetic separator 2.

[0032] Multiple nozzles 9 are fixedly installed on the lower surface of the connecting pipe 8, all tilted to the right, spraying clean water onto the surface of the magnetic separator 2 to rinse away residual fine impurities and ensure that the surface of the magnetic separator 2 is clean.

[0033] There are two first concave mounting brackets 5, which are fixedly connected to the front and rear surfaces of the magnetic separator 1 respectively (located on the right side of the second concave mounting bracket 6). The rectangular plate 13 is fixedly connected to the opposite surface to support the rectangular plate 13 and ensure its tilt angle is stable.

[0034] The rectangular plate 13 is fixedly connected to the opposite sides of the two first concave mounting brackets 5 and is set at an angle. The upper surface is provided with a waste collection trough, the left side is provided with a scraper, and the lower surface is fixedly connected with two L-shaped discharge pipes to receive scraped impurities and rinsing water, and to collect impurities in a concentrated manner.

[0035] There are two L-shaped discharge pipes, which are fixedly connected to the lower surface of the rectangular plate 13. Both are connected to the waste collection tank and are used to discharge impurities and water in the waste collection tank, thus completing the final collection of ferromagnetic impurities.

[0036] Furthermore, when using this high-efficiency iron removal magnetic separation device for slurry, the rotation direction of motor 12 is from left to right; First, the kaolin slurry is fed into the pretreatment tank 7 through a rectangular feed box; The drive motor 10 on the surface of the pretreatment tank 7 is started. The output end of the drive motor 10 drives the stirring shaft 15 to rotate. The stirring shaft 15 drives multiple stirring rods 14 on the outer wall to rotate synchronously. When the stirring rods 14 rotate, they stir the kaolin slurry in the pretreatment tank 7, break up any agglomerated particles in the slurry, and make the slurry concentration uniform. At the same time, the four arc-shaped plates 16 fixedly connected to the stirring rods 14 rotate with them. The arc-shaped part of the arc plate 16 fits against the inner wall of the pretreatment tank 7, which can scrape off the slurry attached to the tank wall, avoid slurry residue and waste, and ensure that all slurry in the pretreatment tank 7 can participate in the stirring. The pretreated kaolin slurry, under the influence of gravity, flows into the magnetic separator 1 through the arc-shaped discharge box 11 below the pretreatment tank 7, and then enters the semi-circular cover 3 through the rectangular feed chute 18 on the lower surface of the semi-circular cover 3, falling onto the outer surface of the magnetic separator 2. At this time, the motor 12 on the rear surface of the magnetic separator 1 is started, and the output end of the motor 12 drives the fixed shaft 4 to rotate (rotation direction from left to right). The fixed shaft 4 drives the magnetic separator 2 to rotate synchronously, while the magnetic system inside the magnetic separator 2 (composed of 5-7 magnetic poles, the permanent magnet material is strontium ferrite) is fixed on the fixed shaft 4 and does not rotate, forming a magnetic separation structure of "the cylinder rotates but the magnet does not rotate". When the kaolin slurry comes into contact with the surface of the rotating magnetic separator 2, the ferromagnetic impurities in the slurry are attracted to the outer wall of the magnetic separator 2 by the magnetic field generated by the magnetic system and rotate synchronously with the magnetic separator 2; while the non-magnetic kaolin slurry flows downward along the inner wall of the semi-circular cover 3 under the action of gravity, and is finally discharged from the two rectangular discharge boxes 17 (set to the right) on the right side of the semi-circular cover 3, completing the initial separation of the slurry and the ferromagnetic impurities and achieving the iron removal effect; As the magnetic separator 2 continues to rotate, the ferromagnetic impurities adsorbed on its surface are carried to the scraper on the right side. Since the scraper is in close contact with the surface of the magnetic separator 2, the scraper scrapes the impurities off the surface of the magnetic separator 2 during rotation. The scraped impurities fall into the waste collection trough of the rectangular plate 13 set at an incline below. At the same time, the external water inlet pipe is connected to the external water inlet pipe connector on the connecting pipe 8. Clean water is transported through the connecting pipe 8 to multiple right-inclined nozzles 9. The nozzles 9 spray clean water onto the surface of the magnetic separator 2 to wash away the residual fine impurities, ensuring that the surface of the magnetic separator 2 is clean and avoiding the impact of impurity residue on the subsequent magnetic separation efficiency. The impurities after rinsing flow into the waste collection tank of the rectangular plate 13 along with the clean water, and are finally discharged through the two L-shaped discharge pipes on the lower surface of the rectangular plate 13, thus completing the collection of ferromagnetic impurities. The baffle 19 on the left side of the semi-circular cover 3 can prevent the slurry that has not been magnetically separated from flowing directly into the right side, ensuring that all slurry can pass through the surface of the magnetic separator 2 for iron removal, further improving the thoroughness of iron removal. The process involves starting the drive motor 10 on the surface of the pretreatment tank 7, which drives the stirring shaft 15 to rotate. The stirring shaft 15 then drives multiple stirring rods 14 on the outer wall to rotate synchronously, breaking up agglomerated particles in the kaolin slurry and ensuring uniform slurry concentration. This provides a stable foundation for subsequent magnetic separation to remove iron. As the magnetic separator 2 continues to rotate, ferromagnetic impurities adsorbed on its surface are carried to the scraper on the right side. The scraper is in close contact with the surface of the magnetic separator 2, scraping the impurities off the surface of the magnetic separator 2. Simultaneously, the external water inlet pipe is connected to the external water inlet connector on the connecting pipe 8. Clean water is delivered through the connecting pipe 8 to multiple right-tilted nozzles 9. The nozzles 9 spray clean water onto the surface of the magnetic separator 2 to wash away residual fine impurities, ensuring the surface of the magnetic separator 2 is clean and preventing impurity accumulation from affecting the efficiency of subsequent magnetic separation, thus maintaining the long-term stable operation of the equipment.

[0037] Example 1: like Figure 5 As shown Application of iron removal in slurry containing fibrous impurities after replacement of the blade-equipped anti-winding stirring rod 14 Scene background A paper mill processing plant was processing kaolin pulp containing plant fibers (fiber length 2-5mm, content approximately 5%). Iron impurities encased in the fibers could not contact the magnetic field of the magnetic separator 2, resulting in an iron removal rate of only 78%. Furthermore, the entangled fibers required manual disassembly and cleaning of the agitator rod 14 (taking approximately 30 minutes per cleaning session), causing two daily downtimes and impacting production efficiency. To address this, the agitator rod 14 was replaced with a "blade-equipped anti-entanglement agitator rod," retaining the welded connection to the agitator shaft 15. Three sets of stainless steel blades (with the cutting edge facing the direction of rotation) were added to the middle of the agitator rod 14, and an arc-shaped fiber scraper (with a 2mm gap between the scraper and the inner wall of the pretreatment tank 7) was added to the end. Structural function and practical effect Fiber impurity treatment adaptation: When the stirring rod 14 rotates, the blades can cut plant fibers 2-5mm long (cutting rate up to 95%), avoiding fiber entanglement; the arc-shaped scraper scrapes away fiber residue on the inner wall of the pretreatment tank 7 in real time (the original fiber adhesion rate on the inner wall was 30%, now it has been reduced to 2%), the stirring dead angle is reduced by 80%, the slurry concentration difference is reduced from ±15% to ±3%, the exposure rate of iron impurities wrapped in fibers is improved, and the iron removal rate is increased from 78% to 94%.

[0038] Example 2: like Figure 6 As shown: Application of iron removal in high-viscosity slurry containing hard agglomerates after replacement of serrated stirring rod 14 Scene background A ceramic kaolin processing plant was processing a high-viscosity slurry containing hard agglomerates (viscosity 600-800 cP, hard agglomerate diameter 1.5-3 mm, main component is clay lumps, content about 25%). Unbroken hard agglomerates encapsulated iron impurities (encapsulation rate about 35%), causing the magnetic separator 2 to fail to effectively adsorb them, with an iron removal rate of only 76%. Furthermore, the hard agglomerates easily got stuck at the discharge port of the arc-shaped discharge box 11 (blockage rate about 18% / day), requiring manual unblocking with tools (taking 25 minutes / time), resulting in an average of 3 downtimes per day, severely impacting production. To address this, the stirring rod 14 was replaced with a "serrated stirring rod 14," retaining the welded fixing structure with the stirring shaft 15. The serrations adopted an isosceles triangular design (tooth height 5 mm, tooth pitch 8 mm, material is wear-resistant manganese steel, hardness HRC55). The rod length and diameter were consistent with the original stirring rod, and the end still retained an arc-shaped scraper adapted to the inner wall of the pretreatment tank 7. Structural function and practical effect High-viscosity hard agglomerate crushing adaptation: The serrated structure enhances the crushing force on hard agglomerates through "point contact shearing"—when the stirring rod 14 rotates, the serrated edge can quickly cut into clay clumps, crushing hard agglomerates of 1.5-3mm into fine particles of ≤0.2mm, increasing the crushing rate from 50% to 92%; after the hard agglomerates are crushed, the exposure rate of iron impurities encased inside increases from 65% to 98%, and the adsorption efficiency of the magnetic separator 2 for iron impurities is significantly improved, with the iron removal rate increasing from 76% to 93%, meeting the quality requirement of "iron removal rate ≥90%" for kaolin used in ceramics.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency iron removal magnetic separation device for ore slurry, comprising a magnetic separation box (1), a magnetic separation assembly, a pretreatment assembly, and a cleaning assembly, characterized in that: The magnetic separation assembly is mounted on the magnetic separator (1); Among them, the pretreatment component is set on the magnetic separator (1); Among them, the cleaning component is set on the magnetic separator (1). The cleaning component includes two second concave mounting brackets (6), which are respectively fixedly connected to the front and rear surfaces of the magnetic separator (1). Among them, the two second concave mounting brackets (6) are fixedly connected to the opposite sides of the connecting pipe (8), and the upper surface of the connecting pipe (8) is fixedly connected to the same external water inlet pipe connector as the inside. Among them, multiple nozzles (9) are fixedly installed on the lower surface of the connecting pipe (8), and the multiple nozzles (9) are all tilted to the right.

2. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 1, characterized in that: The cleaning assembly also includes two first concave mounting brackets (5), which are fixedly connected to the front and rear surfaces of the magnetic separator (1) respectively. The two first concave mounting brackets (5) are located to the right of the two second concave mounting brackets (6). Among them, the opposite faces of the two first concave mounting brackets (5) are fixedly connected with rectangular plates (13).

3. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 2, characterized in that: The rectangular plate (13) is inclined, and a waste collection groove is provided on the upper surface of the rectangular plate (13). A scraper is provided on the left side of the rectangular plate (13). Among them, two L-shaped discharge pipes are fixedly connected to the lower surface of the rectangular plate (13), and both L-shaped discharge pipes are connected to the waste collection trough.

4. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 1, characterized in that: The pretreatment component includes an arc-shaped discharge box (11), which is fixedly connected to the right side of the magnetic separator (1). The arc-shaped discharge box (11) communicates with the interior of the magnetic separator (1), and a pretreatment tank (7) communicating with its interior is fixedly connected to the upper surface of the arc-shaped discharge box (11). Among them, a drive motor (10) is fixedly installed on the rear surface of the pretreatment tank (7).

5. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 4, characterized in that: The output end of the drive motor (10) is fixedly connected to a stirring shaft (15). The front end of the stirring shaft (15) rotates through the interior of the pretreatment tank (7) and is rotatably connected to the inner wall of the pretreatment tank (7). Among them, multiple stirring rods (14) are fixedly connected to the outer wall of the stirring shaft (15), and four arc-shaped plates (16) arranged in a cross shape are provided inside the pretreatment tank (7). The arc-shaped parts of the four arc-shaped plates (16) are all in contact with the inner wall of the pretreatment tank (7). Among them, four arc-shaped plates (16) are fixedly connected to the corresponding stirring rods (14), and a rectangular feed box communicating with the interior is fixedly connected to the upper surface of the pretreatment tank (7).

6. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 1, characterized in that: The magnetic separation assembly includes a semi-circular cover (3), which is fixedly connected inside the magnetic separator (1). A magnetic separator (2) is installed inside the semi-circular cover (3). The magnetic separator (2) has a vacuum structure inside and a fixed shaft (4) is installed inside the magnetic separator (2). The front and rear ends of the fixed shaft (4) rotate through the front and rear surfaces of the magnetic separator (2) respectively, and rotate through the front and rear surfaces of the semi-circular cover (3) and the magnetic separator (1).

7. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 6, characterized in that: The magnetic separator (2) is equipped with a magnetic system inside, consisting of 5-7 magnetic poles. The main permanent magnet material is strontium ferrite. The magnetic system is fixed on the cylindrical shaft and does not rotate during operation. Among them, a motor (12) is fixedly installed on the rear surface of the magnetic separator (1), and the output end of the motor (12) is fixedly connected to the fixed shaft (4).

8. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 6, characterized in that: A baffle (19) is fixedly connected to the left side of the lower surface of the semicircular cover (3), and the baffle (19) is fixedly connected to the bottom of the magnetic separator (1). Among them, a rectangular feed chute (18) communicating with the interior is provided on the left side of the lower surface of the semi-circular cover (3), and the rectangular feed chute (18) is located on the right side of the baffle (19); Among them, two rectangular discharge boxes (17) that communicate with the interior are fixedly connected to the right side of the lower surface of the semicircular cover (3), and both rectangular discharge boxes (17) are inclined to the right. The lower ends of the two rectangular discharge boxes (17) extend through the lower surface of the magnetic separator (1), and the scraper is in contact with the surface of the magnetic separator (2).

9. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 5, characterized in that: The stirring rod (14) can be replaced with an anti-tangling stirring rod with blades.

10. The high-efficiency iron removal magnetic separation device for ore slurry according to claim 5, characterized in that: The stirring rod (14) can be replaced with a serrated stirring rod.

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