Vertical ring high gradient magnetic separator unloading water pipe dredging device

Abstract

This invention discloses a device for clearing the unloading water pipe of a vertical ring high-gradient magnetic separator, belonging to the technical field of flushing and unloading equipment. It includes a rotatable sorting ring with a magnetic medium box on its circumference; an unloading water pipe located above the sorting ring and having an unloading water inlet, with several spray holes at its bottom; a movable crossbeam located inside the unloading water pipe, with several guide columns on it, and a high-pressure air passage inside; each guide column has a jet nozzle communicating with the high-pressure air passage, and a first valve is provided between the jet nozzle and the high-pressure air passage; the movable crossbeam can move between a first position and a second position; in the first position, the guide columns are separated from the spray holes; in the second position, the guide columns extend into the spray holes, and the first valve is open; the guide columns of this invention can extend into the spray holes, directly pushing out impurities inside the spray holes, while simultaneously, the unloading water flows rapidly through the gap, and high-pressure gas is ejected from the jet nozzles, both working together to thoroughly remove impurities from the inner wall of the spray holes.

Description

Technical Field

[0001] This invention relates to the technical field of high gradient magnetic separator flushing and unloading equipment, specifically to a device for clearing unloading water pipes of a vertical ring high gradient magnetic separator. Background Technology

[0002] Currently, wet vertical ring high-gradient magnetic separators are widely used in mineral sorting and processing equipment. They mainly consist of a frame, magnetic yoke, electromagnetic coil, sorting rotating ring, magnetic medium box, transmission device, feed hopper, various collection hoppers, and pulsation device. The specific working principle is as follows: During operation, the electromagnetic coil generates a strong magnetic field after being energized. This strong magnetic field, under the action of the magnetic yoke, forms a magnetic circuit that creates a sorting induction zone. The lower part of the sorting rotating ring is located within this zone, while the upper part is located outside. As the rotating ring rotates, the slurry flows into the lower part of the sorting rotating ring through the feed hopper. The magnetic media box is magnetized in the sorting induction zone, and a high-gradient magnetic field is formed on the surface of the magnetic media inside the magnetic media box. When the slurry flows through the magnetic media, the magnetic particles are adsorbed on the surface of the magnetic media and carried to the non-magnetic field area at the top of the sorting ring as it rotates. A discharge water pipe is installed above the sorting ring, and a magnetic material collection hopper is installed inside the sorting ring. The discharge water sprays out from the discharge water pipe to wash the magnetic media box and flush the magnetic material adsorbed on the surface of the magnetic media into the magnetic material collection hopper. In addition, non-magnetic particles in the slurry are not adsorbed by the magnetic media box and can flow into the non-magnetic material collection hopper along the gaps in the magnetic yoke and be discharged.

[0003] Existing unloading water pipes are usually installed above the sorting rotor and parallel to its axis. The unloading water pipe has several spray holes along its axis. The unloading water with a certain pressure is sprayed out from the outlet holes through the unloading water pipe to form a water curtain that directly hits the magnetic medium box on the upper part of the sorting rotor, thus realizing water unloading. In the actual use of vertical ring high gradient magnetic separators, the amount of water used for unloading is very large. In order to save water, the process water on site is generally recycled after sedimentation for unloading.

[0004] Normally, the process water collected in the sedimentation tank is recycled after a short period of settling. The water quality is poor and contains many impurities, such as flocculants formed by flocculants, easily solidified deposits from chemicals, silt, weeds, leaves, and light floating debris. During use, the spray nozzles on the unloading water pipe often become congested, causing them to shrink or even become blocked. Impurities adhering to the inner wall of the nozzles also shrink the nozzles, altering the direction of the unloading water spray. This prevents the magnetic materials in the magnetic media box from being flushed away in time, affecting the sorting effect. Therefore, it is necessary to periodically stop the machine and manually reinforce each spray nozzle with steel bars. Unblocking is crucial; if unblocking is not done in time, magnetic materials will remain in the magnetic media box for a long time, causing blockage and solidification of the media gaps. This reduces the adsorption efficiency of magnetic materials and greatly affects the mineral processing effect. Blocked and solidified magnetic media boxes can only be removed and cleaned by stopping the machine. Since magnetic media boxes are usually composed of several densely welded magnetic media rods with gaps mostly around 1-3mm, cleaning is difficult, labor-intensive, and affects production efficiency and safety. Therefore, the problem of water spray hole blockage in the unloading water pipe of vertical ring high gradient magnetic separator has become one of the main factors affecting the mineral sorting effect.

[0005] Therefore, developing a device for unloading water pipes of vertical ring high gradient magnetic separators that can automatically unclog the spray holes on the unloading water pipes, ensuring thorough and efficient unloading, maintaining the same spray volume and direction of the unloading water, preventing secondary blockages, guaranteeing the flushing effect on the magnetic media box, and improving the unloading rate of magnetic materials is an urgent problem to be solved at present. Summary of the Invention

[0006] To address the problems existing in the prior art, this invention provides a device for clearing the unloading water pipe of a vertical ring high gradient magnetic separator. Utilizing a guide column on a moving crossbeam that matches several spray holes at the bottom of the unloading water pipe, driven by a first driving component, the guide column periodically extends into the spray holes. When the guide column is inside the spray hole, it directly pushes out large particles of impurities. Simultaneously, the unloading water can still flow through the gap between the guide column and the spray hole. As the unloading water flow rate increases, high-pressure gas is ejected from the jet nozzle. The combined action of the unloading water and high-pressure gas removes impurities adhering to the inner wall of the spray hole, resulting in thorough and efficient clearing of the spray hole. This ensures that the direction and flow rate of the unloading water ejected from the spray hole remain stable, improving the stability of the scouring effect on the magnetic media box and increasing the unloading rate of magnetic materials.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] This invention provides a device for unclogging the unloading water pipe of a vertical ring high gradient magnetic separator, comprising:

[0009] The sorting rotating ring has a horizontally oriented axis and is capable of rotating around its axis. A magnetic medium box is installed on the circumferential surface of the sorting rotating ring.

[0010] The ore discharge water pipe is located above the sorting rotating ring. The ore discharge water pipe is provided with an ore discharge water inlet and several water spray holes at the bottom.

[0011] A movable crossbeam is disposed inside the ore discharge water pipe. The movable crossbeam has several guide posts corresponding to the water spray holes. The movable crossbeam is connected to a first driving assembly, which drives the movable crossbeam to move between a first position and a second position. In the first position, the guide posts are separated from the water spray holes. In the second position, the guide posts extend into the water spray holes, and the guide posts and water spray holes are in clearance fit. A high-pressure air passage is provided inside the movable crossbeam, and the high-pressure air passage is connected to an air source. Several air jet holes are provided on the circumference of the guide posts, and the air jet holes are connected to the high-pressure air passage. A first valve is provided between the air jet holes and the high-pressure air passage. When the movable crossbeam is in the first position, the first valve is closed. When the movable crossbeam is in the second position, the air jet holes are located inside the water spray holes, and the first valve is open.

[0012] As a preferred technical solution, the guide post is provided with a connecting air passage that connects the high-pressure air passage and the jet hole. The connecting air passage forms a placement cavity after passing through the jet hole. The first valve is disposed in the placement cavity. The first valve includes a valve body and an elastic element. When no external force is applied, the valve body moves to the connection point between the connecting air passage and the jet hole under the elastic force of the elastic element, thereby isolating the connecting air passage from the jet hole.

[0013] As a preferred technical solution, the water pressure in the ore unloading water pipe is set to 0.2-0.4 MPa;

[0014] And / or, when the first valve is in the open state, the air pressure in the high-pressure air passage is not less than 0.6 MPa;

[0015] And / or, the elastic element is provided as a spring;

[0016] And / or, the angle between the axis of the jet orifice and the axis of the guide post is set to be non-right angle.

[0017] As a preferred technical solution, it also includes a controller, which is connected to the first drive component and the air source respectively;

[0018] And / or, the air source is a gas pump.

[0019] As a preferred technical solution, the system also includes a frame on which a magnetic yoke is provided. An electromagnetic coil is provided inside the magnetic yoke. When the electromagnetic coil is energized, the magnetic field generated forms a sorting induction zone. The lower part of the sorting rotating ring is located within the sorting induction zone, and the upper part of the sorting rotating ring is located outside the sorting induction zone.

[0020] As a preferred technical solution, a magnetic material collection hopper is provided below the uppermost magnetic medium box inside the sorting rotating ring;

[0021] And / or, the sorting ring has a rotating shaft at its center, and the rotating shaft is connected to a second driving component that drives it to rotate, the second driving component being a motor.

[0022] As a preferred technical solution, guide sleeves are provided at both ends of the movable crossbeam, and a guide rod is provided inside the ore unloading water pipe corresponding to the guide sleeve. The guide rod passes through the guide sleeve, and the guide rod and the guide sleeve are in clearance fit.

[0023] As a preferred technical solution, the first drive component is configured as a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder, the cylinder body of the first drive component is fixedly connected to the unloading water pipe, and the piston rod of the first drive component is fixedly connected to the moving crossbeam.

[0024] As a preferred technical solution, both the movable crossbeam and the guide post are made of stainless steel;

[0025] And / or, when the guide post extends into the water spray hole, the gap between the guide post and the inner wall of the water spray hole is not less than 2mm;

[0026] And / or, the outer peripheral surface of the conductive post is provided with a conductive groove extending along its axial direction.

[0027] As a preferred technical solution, the axis of the water spray hole intersects with the axis of the sorting ring.

[0028] The beneficial effects of this invention are as follows:

[0029] 1. This invention utilizes a guide post on a movable crossbeam that matches several spray holes at the bottom of the ore discharge water pipe. Driven by a first driving component, the guide post periodically extends into the spray holes. When the guide post is inside the spray hole, its movement direction is consistent with the flow direction of the ore discharge water, directly pushing out large particles of impurities from the spray hole without causing secondary blockage. Simultaneously, the ore discharge water can still flow through the gap between the guide post and the spray hole. As the ore discharge water flow rate increases, high-pressure gas is ejected from the jet nozzle. The high-speed flow of the ore discharge water and the high-pressure gas mix continuously. The flushing process removes all impurities adhering to the inner wall of the spray nozzle, ensuring thorough and efficient unblocking. This guarantees that the direction and flow rate of the unloading water from the spray nozzle remain stable. Furthermore, the time the guide column remains inside the spray nozzle does not need to exceed 1 second, and the interval between the guide column's insertion into the spray nozzle can be set to 30 seconds to 60 minutes depending on the quality of the process water. Therefore, the process of unblocking the spray nozzle with the guide column will not have a negative impact on the flushing of the magnetic media box, but will also improve the stability of the flushing effect on the magnetic media box and increase the unloading rate of magnetic materials.

[0030] 2. The controller of the present invention is connected to the first drive component and the air source respectively. It can automatically control the movement of the guide column between the first position and the second position. When the jet hole enters the water spray hole, the high pressure gas is ejected from the jet hole to clear the water spray hole. The whole process can be run automatically without manual intervention, which greatly improves the operating efficiency of the vertical ring high gradient magnetic separator. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the unloading water pipe clearing device for a vertical ring high gradient magnetic separator of the present invention;

[0032] Figure 2 for Figure 1 Sectional view along the middle AA direction;

[0033] Figure 3 for Figure 1 A schematic diagram of the structure of the ore unloading water pipe in the middle;

[0034] Figure 4 for Figure 3 Enlarged view of region B in the middle;

[0035] Figure 5 for Figure 4 A cross-sectional view along the CC direction;

[0036] Figure 6 This is a functional block diagram of the unloading water pipe clearing device for a vertical ring high gradient magnetic separator according to the present invention.

[0037] In the diagram: 1-Sorting rotating ring, 11-Magnetic medium box, 12-Rotating shaft, 2-Unloading water pipe, 21-Unloading water inlet, 22-Water spray hole, 23-Guide rod, 3-Moving crossbeam, 31-First drive assembly, 32-High pressure air passage, 33-Guide sleeve, 4-Conducting column, 41-Air jet hole, 42-Connecting air passage, 43-Placement cavity, 44-Conducting groove, 5-First valve, 51-Valve body, 52-Elastic element, 6-Magnetic material collection hopper. Detailed Implementation

[0038] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0039] Please refer to Figures 1-6 This invention provides a first embodiment of a device for clearing the unloading water pipe of a vertical ring high gradient magnetic separator, comprising a sorting rotating ring 1, an unloading water pipe 2, and a moving crossbeam 3.

[0040] The axis of the sorting rotating ring 1 is set horizontally, and a magnetic medium box 11 is installed on the circumference of the sorting rotating ring 1. The magnetic medium box 11 is filled with magnetic medium. The sorting rotating ring 1 can rotate around its axis, thereby driving the magnetic medium box 11 on the circumference of the sorting rotating ring 1 to periodically enter and leave the sorting sensing area.

[0041] The unloading water pipe 2 is located above the sorting turntable 1. One end of the unloading water pipe 2 is equipped with an unloading water inlet 21, and the other end is equipped with a blind plate. The process water on site enters the unloading water pipe 2 through the unloading water inlet 21 to form unloading water. The bottom of the unloading water pipe 2 is equipped with several water spray holes 22. The unloading water is sprayed from the water spray holes 22 towards the magnetic medium box 11 on the upper part of the sorting turntable 1, which washes away the magnetic material adsorbed on the surface of the magnetic medium.

[0042] A movable crossbeam 3 is located inside the ore discharge water pipe 2. The movable crossbeam 3 has several guide posts 4 corresponding one-to-one with the water spray holes 22. The movable crossbeam 3 is connected to a first drive assembly 31, which can drive the movable crossbeam 3 to move periodically between a first position and a second position. In the first position, the guide posts 4 are separated from the water spray holes 22, and the ore discharge water in the ore discharge water pipe 2 is stably and continuously sprayed from the water spray holes 22 to flush the magnetic medium box 11. In the second position, the guide posts 4 extend into the water spray holes 22, and the guide posts 4 and water spray holes 22 are in a clearance fit, allowing the ore discharge water to still flow out from the gap between the guide posts 4 and water spray holes 22. At this time, the flow rate of the ore discharge water in the water spray holes 22 increases. A high-pressure air passage 32 is provided inside the movable crossbeam 3. The compressed air passage 32 is connected to an air source; the circumference of the guide column 4 is provided with several air jet holes 41, which are connected to the high-pressure air passage 32. A first valve 5 is provided between the air jet holes 41 and the high-pressure air passage 32; when the moving crossbeam 3 is in the first position, the first valve 5 is closed and the high-pressure gas will not be ejected from the air jet holes 41; when the moving crossbeam 3 is in the second position, the air jet holes 41 are located inside the water spray hole 22, the first valve 5 is open, and the high-pressure gas is ejected from the air jet holes 41. It mixes with the high-speed flowing unloading water and can continuously flush the inner wall of the water spray hole 22, removing all the impurities adhering to the inner wall of the water spray hole 22. This thoroughly and efficiently unclogs the water spray hole 22, ensuring that the direction and flow rate of the unloading water ejected from the water spray hole 22 remain stable.

[0043] To ensure that the ore discharge water sprayed from the water spray hole 22 effectively washes the magnetic medium box 11, the water spray hole 22 should spray towards the magnetic medium box 11, that is, the axis of the water spray hole 22 intersects with the axis of the sorting ring 1. To ensure the washing effect on the magnetic medium box 11, the water spray hole 22 can include multiple sets, and the water spray holes 22 in each set are distributed in a direction parallel to the axis of the sorting ring 1. The multiple sets of water spray holes 22 are spaced apart, so that each magnetic medium box 11 passes through each set of water spray holes 22 in sequence during rotation, ensuring that all magnetic materials are washed down.

[0044] Specifically, in actual production, the water pressure in the unloading water pipe 2 is preferably set to 0.2-0.4 MPa to ensure that the unloading water sprayed from the spray hole 22 has sufficient scouring force on the magnetic medium box 11.

[0045] It should be noted that the present invention should also include a frame, on which a magnetic yoke is provided, and an electromagnetic coil is provided inside the magnetic yoke. When the electromagnetic coil is energized, the magnetic field generated forms a sorting induction zone. The sorting rotating ring 1 is rotatably mounted on the frame. The unloading water pipe 2 and the first drive assembly 31 are both mounted on the frame. The lower part of the sorting rotating ring 1 is located inside the sorting induction zone, and the upper part of the sorting rotating ring 1 is located outside the sorting induction zone. The rotation of the sorting rotating ring 1 can drive the magnetic medium box 11 to periodically enter or leave the sorting induction zone. The above structures are all conventional structures in the art and will not be described in detail here.

[0046] In this embodiment, please refer to Figures 1-4 The guide post 4 is provided with a connecting air passage 42 that connects the high-pressure air passage 32 and the jet hole 41. After passing through the jet hole 41, the connecting air passage 42 forms a placement cavity 43. The first valve 5 is located in the placement cavity 43. The first valve 5 includes a valve body 51 and an elastic element 52. When there is no external force, the valve body 51 moves to the connection point between the connecting air passage 42 and the jet hole 41 under the elastic force of the elastic element 52, thus isolating the connecting air passage 42 from the jet hole 41. When the jet hole 41 moves into the water spray hole 22, the air source is opened to supply high-pressure air. High-pressure gas is filled into the channel 32. The high-pressure gas applies pressure to the valve body 51, causing the elastic element 52 to compress and the valve body 51 to retract. This connects the air passage 42 to the jet hole 41, allowing the high-pressure gas to be continuously ejected from the jet hole 41. In other embodiments, the first valve 5 can also be a solenoid valve. In this case, the solenoid valve is connected to the controller, and the controller controls the on / off state of the solenoid valve according to the position of the jet hole 41. This also ensures that the high-pressure gas is ejected from the jet hole 41 only when the jet hole 41 is located inside the water spray hole 22.

[0047] It should be noted that when the first valve 5 is in the open state, the air pressure in the high-pressure air passage 32 is not less than 0.6MPa, ensuring that when the high-pressure gas is ejected from the jet hole 41, it mixes with the unloading water and has a good scouring effect on the inner wall of the spray hole 22.

[0048] Specifically, the elastic element 52 is preferably a spring to ensure a stable elastic force is applied to the valve body 51, and it is inexpensive.

[0049] Further, please refer to Figure 4 The angle between the axis of the jet hole 41 and the axis of the guide post 4 should be non-right angle. In this case, the high-pressure gas ejected from the jet hole 41 mixes with the unloading water and comes into contact with the inner wall of the water spray hole 22, which allows the impurities on the inner wall of the water spray hole 22 to flow directly out of the jet hole 41 with the water flow, thus improving the flushing effect.

[0050] In this embodiment, please refer to Figure 6 The present invention should also include a controller, which is connected to the first drive component 31 and the air source respectively. By adjusting the switch and working intensity of the first drive component 31, the controller can control the movement of the guide post 4 between the first position and the second position. At the same time, when the jet hole 41 enters the water spray hole 22, the controller turns on the air source, and high-pressure gas can be ejected from the jet hole 41 to achieve automatic unblocking of the water spray hole 22. The whole process is automated and no longer requires manual operation. In actual production, the controller can determine the position of the guide post 4 based on the moving distance of the moving beam 3 driven by the first drive component 31, and thus determine whether the jet hole 41 is located in the water spray hole 22.

[0051] Specifically, the controller is preferably a PLC, and the air source is preferably an air pump.

[0052] In this embodiment, please refer to Figure 1 A magnetic material collection hopper 6 is provided below the magnetic medium box 11 at the top inside the sorting ring 1. The magnetic material washed down by the unloading water falls into the magnetic material collection hopper 6.

[0053] Further, please refer to Figure 1 A rotating shaft 12 is provided at the center of the sorting ring 1. Multiple reinforcing ribs are provided between the rotating shaft 12 and the circumference of the sorting ring 1. The rotating shaft 12 is connected to a second drive assembly that drives its rotation. Specifically, the second drive assembly is a motor, and the output shaft of the motor is connected to the rotating shaft 12 through gear transmission.

[0054] In this embodiment, please refer to Figures 1-4 The first drive assembly 31 is a cylinder. The cylinder body is fixed to the unloading water pipe 2 by a flange or hinge support. The piston rod of the cylinder extends into the unloading water pipe 2 and is fixedly connected to the moving crossbeam 3. There is a dynamic seal between the piston rod and the unloading water pipe 2. The extension and retraction of the piston rod can drive the moving crossbeam 3 to move. In other embodiments, the first drive assembly 31 can also be a hydraulic cylinder or an electric cylinder. The first drive assembly 31 can also be a motor. The motor is connected to the moving crossbeam 3 through a crank-connecting rod structure to drive the moving crossbeam 3 to move between the first position and the second position stably.

[0055] Further, please refer to Figures 1-4 Guide rods 23 are provided at both ends of the movable crossbeam 3. A guide sleeve 33 is provided in the unloading water pipe 2 at the corresponding position of the guide rod 23. The guide rod 23 passes through the guide sleeve 33. The clearance between the two allows the movable crossbeam 3 to move stably between the first position and the second position. Furthermore, a limit block can also be provided in the unloading water pipe 2 to limit the movement range of the movable crossbeam 3.

[0056] To prevent rusting, the movable crossbeam 3 and the guide post 4 are preferably made of stainless steel. Specifically, in actual production, the cross-section of the water spray hole 22 is circular, and the inner diameter of the water spray hole 22 is set to 5-17mm, and the size of the guide post 4 matches it. In other embodiments, the cross-section of the water spray hole 22 can also be square, rectangular, elliptical, etc., to ensure that the unloading water is stably sprayed out from the water spray hole 22.

[0057] In this embodiment, please refer to Figure 5Preferably, a guide groove 44 extending axially is provided on the outer peripheral surface of the guide post 4. When the guide post 4 extends into the water spray hole 22, the guide groove 44 makes the gap shape between the guide post 4 and the water spray hole 22 more irregular, making the mixing process of high pressure gas and unloading water more intense, thereby further improving the scouring effect on the inner wall of the water spray hole 22. Specifically, the cross-section of the guide groove 44 can be rectangular or semi-circular. In other embodiments, the extension direction of the guide groove 44 can also be curved or extend circumferentially, so as to effectively improve the scouring effect on the inner wall of the water spray hole 22.

[0058] To ensure the scouring effect on the inner wall of the spray hole 22 during the mixing of high-pressure gas and unloading water, when the guide post 4 extends into the spray hole 22, the gap between the guide post 4 and the inner wall of the spray hole 22 is preferably not less than 2mm.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for unloading water pipe clearing in a vertical ring high gradient magnetic separator, characterized in that, include: The sorting rotating ring (1) has its axis set horizontally and can rotate around its axis. A magnetic medium box (11) is installed on the circumference of the sorting rotating ring (1). The unloading water pipe (2) is located above the sorting rotating ring (1). The unloading water pipe (2) is provided with an unloading water inlet (21) and a number of water spray holes (22) are provided at the bottom of the unloading water pipe (2). A movable crossbeam (3) is located inside the ore unloading water pipe (2). The movable crossbeam (3) is provided with a plurality of guide posts (4) corresponding one-to-one with the water spray holes (22). The movable crossbeam (3) is connected to a first drive assembly (31), which can drive the movable crossbeam (3) to move between a first position and a second position. In the first position, the guide posts (4) are separated from the water spray holes (22). In the second position, the guide posts (4) extend into the water spray holes (22), and the guide posts (4) and the water spray holes (22) are in clearance fit. The movable crossbeam (3) is provided with a high-pressure air passage (32), which is connected to an air source. The guide post (4) has several jet holes (41) on its circumference. The jet holes (41) are connected to the high-pressure air passage (32). A first valve (5) is provided between the jet holes (41) and the high-pressure air passage (32). When the moving beam (3) is in the first position, the first valve (5) is closed. When the moving beam (3) is in the second position, the jet holes (41) are located inside the water spray hole (22). The first valve (5) is open. The air source is opened to fill the high-pressure air passage (32) with high-pressure gas. The high-pressure gas is ejected from the jet holes (41) and mixed with the unloading water to flush the inner wall of the water spray hole (22) and remove the impurities adhering to the inner wall of the water spray hole (22). The guide post (4) is provided with a connecting air passage (42) that connects the high-pressure air passage (32) and the jet hole (41). The connecting air passage (42) forms a placement cavity (43) after passing through the jet hole (41). The first valve (5) is located in the placement cavity (43). The first valve (5) includes a valve body (51) and an elastic element (52). When there is no external force, the valve body (51) moves to the connection point between the connecting air passage (42) and the jet hole (41) under the action of the elastic force of the elastic element (52), thus separating the connecting air passage (42) from the jet hole (41).

2. The device for clearing unloading water pipes of a vertical ring high gradient magnetic separator according to claim 1, characterized in that, The water pressure in the ore unloading water pipe (2) is set to 0.2-0.4 MPa; And / or, when the first valve (5) is in the open state, the air pressure in the high-pressure air passage (32) is not less than 0.6 MPa; And / or, the elastic element (52) is provided as a spring; And / or, the angle between the axis of the jet hole (41) and the axis of the guide post (4) is set to be non-right angle.

3. The device for clearing unloading water pipes of a vertical ring high gradient magnetic separator according to claim 1, characterized in that, It also includes a controller, which is connected to the first drive component (31) and the air source respectively; And / or, the air source is a gas pump.

4. The device for clearing unloading water pipes of a vertical ring high gradient magnetic separator according to claim 1, characterized in that, It also includes a frame, on which a magnetic yoke is provided, and an electromagnetic coil is provided inside the magnetic yoke. When the electromagnetic coil is energized, the magnetic field generated forms a sorting induction zone. The lower part of the sorting rotating ring (1) is located within the sorting induction zone, and the upper part of the sorting rotating ring (1) is located outside the sorting induction zone.

5. The device for clearing unloading water pipes of a vertical ring high gradient magnetic separator according to claim 1, characterized in that, A magnetic material collection hopper (6) is provided below the uppermost magnetic medium box (11) inside the sorting ring (1). And / or, a rotating shaft (12) is provided at the center of the sorting ring (1), and the rotating shaft (12) is connected to a second driving component that drives it to rotate, the second driving component being a motor.

6. The device for clearing unloading water pipes of a vertical ring high gradient magnetic separator according to claim 1, characterized in that, Both ends of the movable crossbeam (3) are provided with guide sleeves (33), and the unloading water pipe (2) is provided with a guide rod (23) corresponding to the guide sleeve (33). The guide rod (23) passes through the guide sleeve (33) and the guide rod (23) is in clearance fit with the guide sleeve (33).

7. The device for clearing unloading water pipes of a vertical ring high gradient magnetic separator according to claim 1, characterized in that, The first drive assembly (31) is configured as a pneumatic cylinder, hydraulic cylinder or electric cylinder. The cylinder body of the first drive assembly (31) is fixedly connected to the unloading water pipe (2), and the piston rod of the first drive assembly (31) is fixedly connected to the moving crossbeam (3).

8. The device for clearing unloading water pipes of a vertical ring high gradient magnetic separator according to claim 1, characterized in that, The movable crossbeam (3) and the guide post (4) are both made of stainless steel; And / or, when the guide post (4) extends into the water spray hole (22), the gap between the guide post (4) and the inner wall of the water spray hole (22) is not less than 2 mm; And / or, the outer peripheral surface of the guide post (4) is provided with a guide groove (44) extending along its axial direction.

9. The device for clearing unloading water pipes of a vertical ring high gradient magnetic separator according to claim 1, characterized in that, The axis of the water spray hole (22) intersects with the axis of the sorting ring (1).

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