Multistage magnetic separation device for removing iron from silicon carbide

Abstract

This utility model relates to the field of silicon carbide magnetic separation technology and proposes a multi-stage magnetic separation iron removal device for silicon carbide, including a magnetic separation frame. A storage box is welded to the top of one side of the magnetic separation frame, and a guide box is welded to the top of the other side of the magnetic separation frame. A first roller is provided at the bottom of the storage box. In this multi-stage magnetic separation iron removal device for silicon carbide, the silicon carbide raw material falls onto the first roller. Utilizing the magnetic attraction effect of the magnet, ferromagnetic impurities are attracted to the first roller, while the silicon carbide rolls into the guide box. Guided by the guide box, the silicon carbide falls onto the second roller. The magnet in the second roller also uses the magnetic attraction effect to further attract the ferromagnetic impurities mixed in with the silicon carbide. A first motor drives a second gear, and the rotation of the first gear causes the first roller to rotate. The second motor drives a third gear, and under the transmission of the annular tooth groove, the second roller can be rotated.

Description

Technical Field

[0001] This utility model relates to the field of silicon carbide magnetic separation technology, specifically to a silicon carbide multi-stage magnetic separation iron removal device. Background Technology

[0002] Silicon carbide is an inorganic compound composed of silicon and carbon bonded together by covalent bonds. It has a unique tetrahedral crystal structure. The main purpose of magnetic separation of silicon carbide for removing iron is to remove ferromagnetic impurities from the raw materials to ensure product quality and purity.

[0003] A search revealed an existing technology (publication number: CN221413470U) for a magnetic separator used in mineral processing. The technology describes a device that "includes a main body, with a motor fixedly connected to the outer wall of the main body, the main body fixing the motor, a rotating rod fixedly connected to the output end of the motor, a feed box fixedly connected to the top of the main body, a feeding structure for intermittently feeding minerals inside the feed box, and a striking structure for striking the minerals inside the feed box." However, in existing magnetic separation methods, minerals are fed into the magnetic separation location in batches during use, and the resulting impacts can affect the magnetic attraction effect on ferromagnetic impurities. Therefore, designing a multi-stage magnetic separation device for silicon carbide to remove iron is essential. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage magnetic separation device for silicon carbide to remove iron, which solves the problem in related technologies where the impact generated when minerals are fed into the magnetic separation position in batches during use affects the magnetic attraction effect on ferromagnetic impurities.

[0005] The technical solution of this utility model is as follows: A multi-stage magnetic separation device for removing iron from silicon carbide includes a magnetic separator frame. A storage box is welded to the top of one side of the magnetic separator frame, and a guide box is welded to the top of the other side. A first roller is located below the bottom of the storage box, and a second roller is located below the bottom of the guide box. Supports are inserted inside both the first and second rollers. Magnets are screwed onto the outside of the supports, with the outer contours of the two magnets respectively fitting the inner contours of the first and second rollers. First support rods are screwed to both ends of the support inside the first roller, and the other end of each first support rod is screwed and fixed to the bottom end face of the storage box. Second support rods are screwed to both ends of the support inside the second roller, and the other end of each second support rod is screwed and fixed to the other side of the magnetic separator frame. One side of the magnetic separator frame is welded with… A screen box is connected and located below the bottom of the first roller. Limiting rings are welded to the outer periphery of both ends of the first and second rollers. A drive plate is welded to the outer wall of one end of the first roller, and a first gear is welded through the drive plate to one end of the inner support of the first roller. A first motor is screwed onto one of the first support rods, and a second gear is welded to the output end of the first motor. The second gear meshes with the first gear. A second motor is screwed onto one of the second support rods, and a third gear is welded to the output end of the second motor. An annular toothed groove is opened on the limiting ring at one end of the second roller, and the third gear meshes with the annular toothed groove. A magnetic screen is screwed into the inside of the screen box, and a vibrating motor is screwed onto the bottom end face of the magnetic screen.

[0006] Preferably, the inner arc of the annular tooth groove is a smooth surface, and the tooth groove of the annular tooth groove is located at the outer arc.

[0007] Preferably, a first screw is threadedly mounted on another second support rod, and a first limiting groove is provided on the limiting ring at the other end of the second roller, with one end of the first screw extending into the first limiting groove.

[0008] Preferably, a second limiting groove is provided on the limiting rings at both ends of the first roller, and a second screw is threaded onto each of the two first support rods, with one end of the second screw extending into the second limiting groove.

[0009] Preferably, a first scraper is provided below the bottom of the storage box, and a first connecting rod is screwed to both ends of the first scraper. The top end of the first connecting rod is screwed and fixed to the bottom end face of the storage box, and one side of the first scraper is in contact with the outer wall of the first roller. A second scraper is provided below the bottom of the guide box, and a second connecting rod is screwed to both ends of the second scraper. The top end of the second connecting rod is screwed and fixed to the bottom end face of the guide box, and one side of the second scraper is in contact with the outer wall of the second roller.

[0010] Preferably, a first guide plate is welded to both sides of the bottom of the screen box, and the first guide plate is located below the bottom of the magnetic screen. A discharge pipe is welded to the center of the bottom of the screen box, and the discharge pipe is connected to the interior of the screen box. A collection box is placed at the bottom of the magnetic separator, and a partition is screwed into the interior of the collection box. One side of the partition is a silicon carbide storage area, which is located below the screen box. The other side of the partition is a waste storage area, which is located below the second roller.

[0011] Preferably, a second guide plate is screwed to the inner bottom of the storage box, and side plates are welded to both sides of the second guide plate. A conveying plate is hinged to one end of the storage box, and baffles are welded to both sides of the conveying plate. The baffles are located between the side plates and the storage box. Electric telescopic rods are screwed to both outer walls of the storage box, and the telescopic ends of the electric telescopic rods are movably connected to the baffles through a rotating shaft.

[0012] Preferably, a controller is screwed onto one side of the magnetic separator.

[0013] The beneficial effects of this utility model are: Silicon carbide raw material falls onto the first roller, where the magnetic attraction of magnets attracts ferromagnetic impurities. The silicon carbide then rolls into the guide box, where it falls onto the second roller. Magnets in the second roller also attract the ferromagnetic impurities within the silicon carbide. A first motor drives a second gear, which in turn rotates the first roller. The second motor drives a third gear, which, through a ring-shaped toothed groove, rotates the second roller. As the first and second rollers rotate, when the ferromagnetic impurities move to a position where there is no magnetic attraction, the first and second scrapers scrape them off. The scraped impurities fall into a screen box, where the silicon carbide mixed with the ferromagnetic impurities is screened out. This multi-stage magnetic separation method improves the separation effect and reduces the impact of shocks on the magnetic attraction of ferromagnetic impurities. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is an isometric view of the entire utility model; Figure 2 This is a schematic diagram of the back structure of this utility model; Figure 3 This is a schematic diagram of the bottom structure of this utility model; Figure 4 This is a cross-sectional view of the entire utility model; Figure 5 This is a partial sectional view of the present invention.

[0016] In the diagram: 1. Magnetic separator; 2. Storage bin; 3. Guide bin; 4. First roller; 5. Second roller; 6. Support; 7. Magnet; 8. First support rod; 9. Second support rod; 10. Screen box; 11. Drive plate; 12. First gear; 13. First motor; 14. Second gear; 15. Second motor; 16. Annular toothed groove; 17. Magnetic screen; 18. Vibrating motor; 19. Limiting ring; 20. First screw; 21. First limiting groove; 22. Second limiting groove; 23. Second screw; 24. First scraper; 25. First connecting rod; 26. Second scraper; 27. Second connecting rod; 28. First guide plate; 29. ​​Discharge pipe; 30. Collection box; 31. Partition plate; 32. Second guide plate; 33. Side plate; 34. Conveying plate; 35. Baffle; 36. Electric telescopic rod; 37. Controller; 38. Third gear. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0018] like Figure 1-5As shown, this embodiment proposes a multi-stage magnetic separation iron removal device for silicon carbide, including a magnetic separator 1. A storage box 2 is welded to the top of one side of the magnetic separator 1, and a guide box 3 is welded to the top of the other side of the magnetic separator 1. A first roller 4 is provided below the bottom of the storage box 2, and a second roller 5 is provided below the bottom of the guide box 3. A bracket 6 is inserted into the interior of both the first roller 4 and the second roller 5. Magnets 7 are screwed onto the exterior of the bracket 6, and the outer contours of the two magnets 7 are respectively fitted to the inner contours of the first roller 4 and the second roller 5. A first support rod 8 is screwed to both ends of the bracket 6 inside the first roller 4, and the other end of the first support rod 8 is screwed and fixed to the bottom end face of the storage box 2. A second support rod 9 is screwed to both ends of the bracket 6 inside the second roller 5, and the other end of the second support rod 9 is connected to the magnetic separator 1. The other side is screwed and fixed. A screen box 10 is welded to one side of the magnetic separator 1, and the screen box 10 is located below the bottom of the first roller 4. Limiting rings 19 are welded to the outer periphery of both ends of the first roller 4 and the second roller 5. A drive plate 11 is welded to the outer wall of one end of the first roller 4, and one end of the inner support 6 of the first roller 4 passes through the drive plate 11 and is welded with a first gear 12. A first motor 13 is screwed onto one of the first support rods 8, and a second gear 14 is welded to the output end of the first motor 13. The second gear 14 meshes with the first gear 12. A second motor 15 is screwed onto one of the second support rods 9, and a third gear 38 is welded to the output end of the second motor 15. An annular toothed groove 16 is opened on the limiting ring 19 at one end of the second roller 5, and the third gear 38... The screen box 10 is screwed with a magnetic screen 17, which meshes with the annular toothed groove 16. A vibrating motor 18 is screwed to the bottom end face of the magnetic screen 17. The inner arc of the annular toothed groove 16 is a smooth surface, and the tooth groove of the annular toothed groove 16 is set at the outer arc. A first screw 20 is threaded onto another second support rod 9. A first limiting groove 21 is opened on the limiting ring 19 at the other end of the second roller 5, and one end of the first screw 20 extends into the first limiting groove 21. By turning the first screw 20, one end is inserted into the first limiting groove 21. In conjunction with the third gear 38 and the annular toothed groove 16, a limiting effect on the second roller 5 can be formed. A second limiting groove 22 is opened on the limiting ring 19 at both ends of the first roller 4. Both first support rods 8 are threaded onto the first screw 20. A second screw 23 is installed, with one end of the second screw 23 extending into the second limiting groove 22. By turning the second screw 23 so that one end is inserted into the second limiting groove 22, the first roller 4 can be limited. A first scraper 24 is provided at the bottom of the storage box 2, and a first connecting rod 25 is screwed to both ends of the first scraper 24. The top end of the first connecting rod 25 is screwed and fixed to the bottom end face of the storage box 2. One side of the first scraper 24 is in contact with the outer wall of the first roller 4. A second scraper 26 is provided at the bottom of the guide box 3, and a second connecting rod 27 is screwed to both ends of the second scraper 26. The top end of the second connecting rod 27 is screwed and fixed to the bottom end face of the guide box 3. One side of the second scraper 26 is in contact with the outer wall of the second roller 5.Ferromagnetic impurities on the first roller 4 and the second roller 5 can be scraped off by the first scraper 24 and the first connecting rod 25. First guide plates 28 are welded to both sides of the bottom of the screen box 10, and the first guide plates 28 are located below the bottom of the magnetic screen 17. A discharge pipe 29 is welded to the center of the bottom of the screen box 10, and the discharge pipe 29 is connected to the interior of the screen box 10. A collection box 30 is placed at the bottom of the magnetic separator 1, and a partition 31 is screwed into the interior of the collection box 30. One side of the partition 31 is a silicon carbide storage area, located below the screen box 10; the other side of the partition 31 is a waste storage area, located below the second roller 5. The silicon carbide screened out by the magnetic screen 17 can be transported to the discharge pipe 29 by the first guide plate 28, and under the guidance of the discharge pipe 29, it falls into the silicon carbide storage area inside the collection box 30. A second guide plate 32 is screwed to the inner bottom of the storage box 2, and side plates 33 are welded to both sides of the second guide plate 32. A conveyor plate 34 is hinged to one end of the storage box 2, and baffles 35 are welded to both sides of the conveyor plate 34. The baffles 35 are located between the side plates 33 and the storage box 2. Electric telescopic rods 36 are screwed to both outer walls of the storage box 2, and the telescopic ends of the electric telescopic rods 36 are movably connected to the baffles 35 through a rotating shaft. By extending the electric telescopic rods 36, the conveyor plate 34 can be pushed out and tilted downwards. Under the action of the second guide plate 32, the silicon carbide raw material can be conveyed to the first roller 4. The baffles 35 can prevent the silicon carbide raw material from rolling off the sides of the conveyor plate 34. A controller 37 is screwed to one side of the magnetic separator 1. The controller 37 can control the first motor 13, the second motor 15, the vibrating motor 18, and the electric telescopic rods 36 through programming.

[0019] In this embodiment, the first motor 13, the second motor 15, the vibration motor 18, the electric telescopic rod 36, and the controller 37 are all existing mature technologies, and therefore will not be described in detail below. In use, silicon carbide raw material is poured into the storage bin 2, and the first motor 13, the second motor 15, and the vibration motor 18 are started by the controller 37. The controller 37 controls the extension of the electric telescopic rod 36 to push out the conveyor plate 34 and tilt it downwards. Under the action of the second guide plate 32, the silicon carbide raw material can be conveyed onto the first roller 4. The baffle 35 prevents the silicon carbide raw material from falling off the conveyor. The silicon carbide raw material rolls down from both sides of the feeding plate 34. When it falls onto the first roller 4, the magnetic attraction of the magnet 7 attracts ferromagnetic impurities onto the first roller 4, while the silicon carbide rolls into the guide box 3. Guided by the guide box 3, the silicon carbide falls onto the second roller 5. The magnet 7 in the second roller 5 also attracts the ferromagnetic impurities mixed in with the silicon carbide a second time. The first motor 13 drives the second gear 14, which, under the rotation of the first gear 12, causes the first roller 4 to rotate. The second motor 15 drives the third gear 38, and under the transmission of the annular toothed groove 16, the first roller 4 can rotate. The second roller 5 rotates. As the first roller 4 and the second roller 5 rotate, when the ferromagnetic impurities move to a position where there is no magnetic attraction from the magnet 7, the first scraper 24 and the second scraper 26 will scrape off the ferromagnetic impurities on the first roller 4 and the second roller 5 respectively. The ferromagnetic impurities scraped off from the first roller 4 will fall into the screen box 10, and the ferromagnetic impurities scraped off from the second roller 5 will fall into the collection box 30. The silicon carbide screened out by the second roller 5 will also fall into the collection box 30. The partition 31 can separate the areas where ferromagnetic impurities and silicon carbide are stored. The vibration motor 18 and the magnetic screen 1... 7 can further screen the ferromagnetic impurities that fall into the screen box 10. The magnetic screen 17 can adsorb the ferromagnetic impurities, and the vibrating motor 18 can screen out the silicon carbide mixed in with the ferromagnetic impurities. Under the guidance of the first guide plate 28 and the discharge pipe 29, the silicon carbide falls into the silicon carbide storage area in the collection box 30. By turning the first screw 20, one end of it is inserted into the first limiting groove 21. With the cooperation of the third gear 38 and the annular tooth groove 16, a limiting effect can be formed on the second roller 5. By turning the second screw 23, one end of it is inserted into the second limiting groove 22, which can limit the first roller 4.

[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A silicon carbide multi-stage magnetic separation iron removal device, comprising a magnetic separator (1), characterized in that, A storage box (2) is welded to the top of one side of the magnetic separator (1), and a guide box (3) is welded to the top of the other side of the magnetic separator (1). A first roller (4) is provided below the bottom of the storage box (2), and a second roller (5) is provided below the bottom of the guide box (3). A bracket (6) is inserted into the interior of both the first roller (4) and the second roller (5). A magnet (7) is screwed onto the exterior of the bracket (6), and the outer contours of the two magnets (7) are respectively located on the first roller (4) and the second roller (5). The inner contour of the roller (5) fits together. Both ends of the inner support (6) of the first roller (4) are screwed with first support rods (8), and the other end of the first support rods (8) is screwed and fixed to the bottom end face of the storage box (2). Both ends of the inner support (6) of the second roller (5) are screwed with second support rods (9), and the other end of the second support rods (9) is screwed and fixed to the other side of the magnetic separator (1). A screen box (10) is welded to one side of the magnetic separator (1), and the screen box (10) is located on the first roller (4). Below the bottom, limit rings (19) are welded to the outer periphery of both ends of the first roller (4) and the second roller (5). A drive plate (11) is welded to the outer wall of one end of the first roller (4), and one end of the inner support (6) of the first roller (4) passes through the drive plate (11) and is welded with a first gear (12). A first motor (13) is screwed onto one of the first support rods (8), and a second gear (14) is welded to the output end of the first motor (13). The second gear (14) meshes with the first gear (12). A second motor (15) is screwed onto one of the second support rods (9), and a third gear (38) is welded to the output end of the second motor (15). An annular tooth groove (16) is opened on the limit ring (19) at one end of the second roller (5), and the third gear (38) meshes with the annular tooth groove (16). A magnetic screen (17) is screwed into the inside of the screen box (10), and a vibration motor (18) is screwed onto the bottom end face of the magnetic screen (17).

2. The silicon carbide multi-stage magnetic separation iron removal device according to claim 1, characterized in that, The inner arc of the annular tooth groove (16) is a smooth surface, and the tooth groove of the annular tooth groove (16) is located at the outer arc.

3. The silicon carbide multi-stage magnetic separation iron removal device according to claim 1, characterized in that, Another second support rod (9) is threadedly mounted with a first screw (20), and a first limiting groove (21) is provided on the limiting ring (19) at the other end of the second roller (5), and one end of the first screw (20) extends into the first limiting groove (21).

4. The silicon carbide multi-stage magnetic separation iron removal device according to claim 1, characterized in that, The first roller (4) has a second limiting groove (22) on the limiting ring (19) at both ends. The two first support rods (8) are each threaded with a second screw (23), and one end of the second screw (23) extends into the second limiting groove (22).

5. The silicon carbide multi-stage magnetic separation iron removal device according to claim 1, characterized in that, The storage box (2) is provided with a first scraper (24) at the bottom, and a first connecting rod (25) is screwed to both ends of the first scraper (24). The top end of the first connecting rod (25) is screwed to the bottom end face of the storage box (2). One side of the first scraper (24) is in contact with the outer wall of the first roller (4). The guide box (3) is provided with a second scraper (26) at the bottom, and a second connecting rod (27) is screwed to both ends of the second scraper (26). The top end of the second connecting rod (27) is screwed to the bottom end face of the guide box (3). One side of the second scraper (26) is in contact with the outer wall of the second roller (5).

6. The silicon carbide multi-stage magnetic separation iron removal device according to claim 1, characterized in that, The bottom sides of the screen box (10) are welded with first guide plates (28), and the first guide plates (28) are located below the bottom of the magnetic screen (17). The bottom center of the screen box (10) is welded with a discharge pipe (29), and the discharge pipe (29) is connected to the inside of the screen box (10). The bottom of the magnetic separator (1) is placed with a collection box (30), and the inside of the collection box (30) is screwed with a partition (31). One side of the partition (31) is a silicon carbide storage area, and the silicon carbide storage area is located below the screen box (10). The other side of the partition (31) is a waste storage area, and the waste storage area is located below the second roller (5).

7. The silicon carbide multi-stage magnetic separation iron removal device according to claim 1, characterized in that, The storage box (2) has a second guide plate (32) screwed to its inner bottom, and side plates (33) are welded to both sides of the second guide plate (32). A conveying plate (34) is hinged to one end of the storage box (2), and baffles (35) are welded to both sides of the conveying plate (34). The baffles (35) are located between the side plates (33) and the storage box (2). Electric telescopic rods (36) are screwed to both outer walls of the storage box (2), and the telescopic ends of the electric telescopic rods (36) are movably connected to the baffles (35) through a rotating shaft.

8. The silicon carbide multi-stage magnetic separation iron removal device according to claim 1, characterized in that, A controller (37) is screwed onto one side of the magnetic separator (1).

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