Device for improving magnetic strength through fine powder magnetic separation

Abstract

The utility model relates to the technical field of magnetic separation equipment, in particular to a fine powder magnetic separation magnetic strength improving device which comprises a belt body cleaning assembly installed on the back face of a magnetic material bin, the belt body cleaning assembly comprises a back plate, the back plate is detachably connected with the magnetic material bin, and an adjusting base is arranged on the side, away from the magnetic material bin, of the back plate. A lifting structure for adjusting the height of the adjusting seat is arranged on the back plate, a knife rest is arranged at the upper end of the adjusting seat, a scraper is arranged at the upper end of the knife rest, and a spring telescopic structure is arranged at the joint of the scraper and the knife rest. When the conveyor belt works, the scrapers can scrape off powder residues remaining on the surface of the conveyor belt, the separation magnetic force of the magnetic separation equipment is improved, the scrapers are adjustable, the scrapers can be automatically retracted after the conveyor belt is cleaned, surface abrasion of the conveyor belt is reduced, and when the scrapers make contact with the conveyor belt, the spring telescopic structures support the scrapers to elastically stretch out and draw back in a small range. And the scraper is prevented from suddenly rising to damage the conveyor belt body, and the reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic separation equipment, in particular to a device for improving magnetic strength of fine powder magnetic separation. Background Art

[0002] A magnetic separator is a device that uses magnetic materials to separate magnetic and non-magnetic minerals. Its principle is based on the magnetic differences in the minerals, and the magnetic and non-magnetic minerals are separated by the action of the magnetic field.

[0003] The existing magnetic suction equipment for sorting sand ore mainly includes a conveyor belt. A magnet is installed in the belt roller at the top of the conveyor belt. When the mineral powder passes the end of the conveyor belt, the non-magnetic mineral will fall naturally. The non-magnetic material bin is set in front of the belt roller to collect the fallen non-magnetic mineral powder, and the magnetic metal fine powder will be sucked on the belt body of the conveyor belt. Then the conveyor belt turns, and the metal fine powder adsorbed on it falls away from the belt roller with the magnet. The magnetic material bin collects the fallen metal fine powder. When the conveyor belt works for a long time, dirt, mud, slag or other non-magnetic materials will accumulate on the surface of the conveyor belt. When the accumulation is too much, the accumulated dirt, mud, slag or other non-magnetic materials may cover the magnetic minerals in the process of conveying the mineral powder, so that the magnetic material cannot directly contact the magnetic field of the magnetic separator, thereby reducing the magnetic separation efficiency. Utility Model Content

[0004] In view of the above problems, the utility model proposes a device for improving the magnetic strength of fine powder magnetic separation, which is used to solve the disadvantage that in the process of conveying mineral powder in the existing fine powder magnetic separation equipment, accumulated dirt, mud, slag or other non-magnetic materials may cover the magnetic minerals, making it impossible for the magnetic materials to directly contact the magnetic field of the magnetic separator, thereby reducing the magnetic separation efficiency.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a device for improving magnetic strength of fine powder magnetic separation, including a belt cleaning assembly installed on the back of a magnetic material bin;

[0006] The belt cleaning assembly includes a back plate, which is detachably connected to the magnetic material bin, an adjustment seat is provided on the side of the back plate away from the magnetic material bin, the adjustment seat is slidably connected to the back plate, and a lifting structure for adjusting the height of the adjustment seat is provided on the back plate;

[0007] A tool holder is provided at the upper end of the adjustment seat, and a scraper for cleaning the surface of the conveyor belt is provided at the upper end of the tool holder. The lower end of the scraper is inserted into a movable groove opened at the upper end of the tool holder. The scraper is slidably connected to the movable groove, and a spring telescopic structure is provided at the connection between the scraper and the tool holder.

[0008] A further improvement is that the lifting structure includes an electric push rod, a mounting end of the electric push rod is fixedly connected to the lower end of the back plate, and an output end of the electric push rod is fixedly connected to the adjustment seat.

[0009] A further improvement is that the spring telescopic structure includes an upper pressure block and a lower support block, the upper pressure block is fixedly connected to both sides of the scraper, the lower support block is fixedly connected to both sides of the tool holder, the lower support block is placed below the upper pressure block, a guide rod is provided at the lower end of the upper pressure block, the upper end of the guide rod is fixedly connected to the upper pressure block, the lower end of the guide rod passes through the lower support block, the guide rod is slidably connected to the lower support block, a spring is provided on the outer side of the guide rod, and the two ends of the spring are respectively fixedly connected to the upper pressure block and the lower support block.

[0010] A further improvement is that a slide groove is provided on the side of the back plate away from the magnetic material bin, a slider is provided in the slide groove, the slider is slidably connected to the slide groove, and the end of the slider away from the back plate is fixedly connected to the adjustment seat.

[0011] A further improvement is that bolt plates are provided on both sides of the back plate, the bolt plates are fixedly connected to the back plate, and the bolt plates are equipped with first fixing bolts, which pass through the bolt plates and are threadedly connected to the threaded grooves opened on the outside of the magnetic material bin.

[0012] Further improvement is that: the upper end of the adjustment seat is provided with a mounting slot, the lower end of the scraper is inserted into the mounting slot, and a plurality of second fixing bolts are installed on the side of the adjustment seat away from the magnetic material bin. The second fixing bolts penetrate into the mounting slot and are threadedly connected with the threaded holes provided on the outside of the tool holder.

[0013] The utility model has the following beneficial effects: when the conveyor belt is working, the scraper can scrape off the powder residue remaining on the surface of the conveyor belt, thereby improving the separation magnetic force of the magnetic separation equipment;

[0014] The scraper is adjustable and can be automatically retracted after the conveyor belt is cleaned, reducing the wear on the conveyor belt surface;

[0015] When the scraper contacts the conveyor belt, the spring telescopic structure supports the scraper to perform a small range of elastic expansion and contraction, avoiding the scraper from causing damage to the conveyor belt due to sudden rise, and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural diagram of a conveyor belt, a magnetic material bin and a non-magnetic material bin in the prior art.

[0018] Figure 2 It is a structural diagram of the scraper in the utility model.

[0019] Figure 3 It is a structural diagram of the back plate in the utility model.

[0020] Figure 4 It is a structural diagram of the adjusting seat in the utility model.

[0021] Figure 5 It is a structural diagram of the tool holder in the utility model.

[0022] Figure 6 This utility model Figure 5 A magnified view of the structure at center.

[0023] Among them: 1. Conveyor belt; 2. Belt roller; 3. Magnetic material bin; 4. Non-magnetic material bin; 5. Back plate; 6. Electric push rod; 7. Adjustment seat; 8. Knife holder; 9. Scraper; 10. Bolt plate; 11. First fixing bolt; 12. Slide groove; 13. Second fixing bolt; 14. Slider; 15. Mounting slot; 16. Threaded hole; 17. Movable slot; 18. Upper pressure block; 19. Lower support block; 20. Guide rod; 21. Spring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] according to Figure 1 , 2 , 3, 4, 5, and 6, a device for improving magnetic strength of fine powder magnetic separation is proposed in this embodiment, including a belt cleaning assembly installed on the back of the magnetic material bin 3;

[0026] About the existing magnetic suction equipment: The existing magnetic suction equipment mainly includes a conveyor belt 1. A magnet is installed in the belt roller 2 at the top of the conveyor belt 1. The magnetic separator will distinguish different materials according to their reaction to the contact with the magnet. When the mineral powder passes the end of the conveyor belt, the non-magnetic mineral will fall naturally. The non-magnetic material bin 4 is arranged directly in front of the belt roller 2 to collect the fallen non-magnetic mineral powder, and the magnetic metal fine powder will be sucked onto the conveyor belt 1. Then the conveyor belt turns, and the metal fine powder adsorbed on it falls due to being away from the belt roller 2 with the magnet. The magnetic material bin 3 collects the fallen metal fine powder.

[0027] The belt cleaning assembly is installed on the back of the magnetic material bin 3, and is used to clean the belt surface of the conveyor belt 1 passing over the magnetic material bin 3. Specifically, the belt cleaning assembly includes a back plate 5, which is detachably connected to the magnetic material bin 3, and an adjustment seat 7 is provided on the side of the back plate 5 away from the magnetic material bin 3. The adjustment seat 7 is slidably connected to the back plate 5, and a lifting structure for adjusting the height of the adjustment seat 7 is provided on the back plate 5; the detachable connection method makes it convenient for the staff to remove the entire belt cleaning assembly from the back of the magnetic material bin 3 for replacement and maintenance.

[0028] A knife holder 8 is provided at the upper end of the adjustment seat 7. A scraper 9 for cleaning the surface of the conveyor belt 1 is provided at the upper end of the knife holder 8. The lower end of the scraper 9 is inserted into a movable groove 17 provided at the upper end of the knife holder 8. The scraper 9 is slidably connected to the movable groove 17. A spring telescopic structure is provided at the connection between the scraper 9 and the knife holder 8. The lifting structure adjusts the height of the knife holder 8 through the adjustment seat 7, so that when the conveyor belt 1 is working, the scraper 9 can contact the surface of the belt body below the conveyor belt 1. When the conveyor belt 1 transports powder, the powder residue remaining on the surface of the conveyor belt 1 will be scraped off by the scraper 9. The adjustable design of the scraper 9 can be automatically retracted after the conveyor belt 1 is cleaned, and the belt body of the conveyor belt 1 is no longer scraped, thereby reducing the wear on the surface of the conveyor belt 1.

[0029] Specifically, the lifting structure includes an electric push rod 6, the mounting end of the electric push rod 6 is fixedly connected to the lower end of the back plate 5, and the output end of the electric push rod 6 is fixedly connected to the adjustment seat 7. The electric push rod 6 is installed on the side of the back plate 5 away from the magnetic material bin 3, and the height of the adjustment seat 7 is controlled by the electric push rod 6. Of course, in addition to the electric push rod 6, linear push devices such as pneumatic push rods and hydraulic push rods can also be used as substitutes, and are not limited to the one described above.

[0030] The spring telescopic structure is arranged between the scraper 9 and the blade holder 8. When the scraper 9 contacts the conveyor belt 1, the scraper 9 can be supported to perform a small elastic telescopic movement to prevent the scraper 9 from causing damage to the conveyor belt 1 due to a sudden rise.

[0031] Specifically, the spring telescopic structure includes an upper pressing block 18 and a lower supporting block 19. The upper pressing block 18 is fixedly connected to both sides of the scraper 9, and the lower supporting block 19 is fixedly connected to both sides of the tool holder 8. The lower supporting block 19 is placed below the upper pressing block 18. A guide rod 20 is provided at the lower end of the upper pressing block 18. The upper end of the guide rod 20 is fixedly connected to the upper pressing block 18, and the lower end of the guide rod 20 penetrates the lower supporting block 19. The guide rod 20 is slidably connected to the lower supporting block 19. A spring 21 is sleeved on the outer side of the guide rod 20, and the two ends of the spring 21 are respectively fixedly connected to the upper pressing block 18 and the lower supporting block 19. After the scraper 9 is pressed, it will fall back into the movable groove 17, and the upper pressing block 18 will fall together. The spring 21 contracts to support the upper pressing block 18, and the guide rod 20 slides along the lower supporting block 19 to limit the falling of the scraper 9. By arranging a spring buffer between the scraper 9 and the tool holder 8, the conveyor belt 1 and the scraper 9 can be effectively protected.

[0032] Regarding the sliding connection between the adjustment seat 7 and the back plate 5: a chute 12 is provided on the side of the back plate 5 away from the magnetic material bin 3, a slider 14 is provided in the chute 12, the slider 14 is slidably connected to the chute 12, and the end of the slider 14 away from the back plate 5 is fixedly connected to the adjustment seat 7. The chute 12 is a T-shaped chute, and the slider 14 is a T-shaped slider adapted to the T-shaped chute. When the adjustment seat 7 is pushed by the electric push rod 6 to be raised or lowered, the slider 14 fixed to the adjustment seat 7 will slide along the chute 12, and the chute 12 cooperates with the slider 14 to guide the adjustment seat 7 to ensure that the scraper 9 will not tilt when it rises.

[0033] Regarding the detachable connection between the back plate 5 and the magnetic material bin 3: bolt plates 10 are provided on both sides of the back plate 5, the bolt plates 10 are fixedly connected to the back plate 5, and the bolt plates 10 are equipped with first fixing bolts 11, which pass through the bolt plates 10 and are threadedly connected to the thread grooves provided on the outside of the magnetic material bin 3. When the back plate 5 is removed from the magnetic material bin 3, the first fixing bolt 11 is screwed out of the thread grooves on the outside of the magnetic material bin 3. The entire belt cleaning assembly is also removed, and it is convenient to disassemble and replace.

[0034] Regarding the detachable connection between the adjustment seat 7 and the blade holder 8: the upper end of the adjustment seat 7 is provided with a mounting slot 15, the lower end of the scraper 9 is inserted into the mounting slot 15, and the side of the adjustment seat 7 away from the magnetic material bin 3 is equipped with a plurality of second fixing bolts 13, the second fixing bolts 13 penetrate into the mounting slot 15 and are threadedly connected with the threaded holes 16 provided on the outer side of the blade holder 8. When the blade holder 8 and the scraper 9 are removed from the adjustment seat 7, the second fixing bolts 13 on the adjustment seat 7 can be unscrewed from the threaded holes 16 on the outer side of the blade holder 8, and the scraper 9 can be replaced quickly and conveniently.

[0035] Working principle of the present application: The lifting structure adjusts the height of the knife holder 8 through the adjustment seat 7, so that when the conveyor belt 1 is working, the scraper 9 can contact the surface of the belt body below the conveyor belt 1. When the conveyor belt 1 transports powder, the powder residue remaining on the surface of the conveyor belt 1 will be scraped off by the scraper 9. The adjustable design of the scraper 9 can automatically retract after the conveyor belt 1 is cleaned, and the belt body of the conveyor belt 1 will no longer be scraped, reducing the wear on the surface of the conveyor belt 1. The spring telescopic structure is set between the scraper 9 and the knife holder 8. When the scraper 9 contacts the conveyor belt 1, it can support the scraper 9 to perform a small elastic expansion and contraction, avoiding the scraper 9 from causing damage to the conveyor belt 1 due to sudden rise, and has high reliability.

[0036] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0037] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A device for improving magnetic strength of fine powder magnetic separation, comprising a belt cleaning assembly installed on the back of a magnetic material bin (3), characterized in that: The belt cleaning assembly comprises a back plate (5), the back plate (5) is detachably connected to the magnetic material bin (3), an adjustment seat (7) is provided on the side of the back plate (5) away from the magnetic material bin (3), the adjustment seat (7) is slidably connected to the back plate (5), and a lifting structure for adjusting the height of the adjustment seat (7) is provided on the back plate (5); A knife holder (8) is provided at the upper end of the adjustment seat (7); a scraper (9) for cleaning the surface of the conveyor belt (1) is provided at the upper end of the knife holder (8); the lower end of the scraper (9) is inserted into a movable groove (17) provided at the upper end of the knife holder (8); the scraper (9) is slidably connected to the movable groove (17); and a spring telescopic structure is provided at the connection between the scraper (9) and the knife holder (8).

2. The device for increasing magnetic strength of fine powder magnetic separation according to claim 1, characterized in that: The lifting structure comprises an electric push rod (6), the mounting end of the electric push rod (6) is fixedly connected to the lower end of the back plate (5), and the output end of the electric push rod (6) is fixedly connected to the adjustment seat (7).

3. The device for increasing magnetic strength of fine powder magnetic separation according to claim 1 is characterized in that: The spring telescopic structure comprises an upper pressing block (18) and a lower supporting block (19), wherein the upper pressing block (18) is fixedly connected to both sides of the scraper (9), and the lower supporting block (19) is fixedly connected to both sides of the tool holder (8), and the lower supporting block (19) is placed below the upper pressing block (18). A guide rod (20) is provided at the lower end of the upper pressing block (18), and the upper end of the guide rod (20) is fixedly connected to the upper pressing block (18), and the lower end of the guide rod (20) passes through the lower supporting block (19), and the guide rod (20) is slidably connected to the lower supporting block (19), and a spring (21) is sleeved on the outer side of the guide rod (20), and the two ends of the spring (21) are respectively fixedly connected to the upper pressing block (18) and the lower supporting block (19).

4. The device for increasing magnetic strength of fine powder magnetic separation according to claim 1, characterized in that: A slide groove (12) is provided on the side of the back plate (5) away from the magnetic material bin (3), a slider (14) is provided in the slide groove (12), the slider (14) is slidably connected to the slide groove (12), and the slider (14) is fixedly connected to the adjustment seat (7) at one end away from the back plate (5).

5. The device for increasing magnetic strength of fine powder magnetic separation according to claim 1 is characterized in that: Bolt plates (10) are provided on both sides of the back plate (5), and the bolt plates (10) are fixedly connected to the back plate (5). The bolt plates (10) are equipped with first fixing bolts (11), and the first fixing bolts (11) pass through the bolt plates (10) and are threadedly connected to thread grooves provided on the outside of the magnetic material bin (3).

6. The device for increasing magnetic strength of fine powder magnetic separation according to claim 1, characterized in that: The upper end of the adjustment seat (7) is provided with a mounting slot (15), and the lower end of the scraper (9) is inserted into the mounting slot (15). The side of the adjustment seat (7) away from the magnetic material bin (3) is equipped with a plurality of second fixing bolts (13), and the second fixing bolts (13) penetrate into the mounting slot (15) and are threadedly connected with threaded holes (16) provided on the outer side of the tool holder (8).

Images