Feeding device and feeding method of magnetic separator

Abstract

The invention provides a magnetic separator feeding device and a feeding method, the magnetic separator feeding device comprises a flow dividing groove, one side of the bottom of the flow dividing groove is provided with an outflow port, and ore pulp entering the flow dividing groove flows out from the outflow port; the flow dividing groove is internally divided into a bearing area, ore pulp is conveyed to the bearing area through a conveying pipe, a plurality of flow guide plates are arranged at the bottom of the flow dividing groove, one ends of the flow guide plates are evenly distributed in the length direction of the flow outlet at intervals, and the other ends of the flow guide plates are evenly distributed in the bearing area in the circumferential direction. And the ore pulp entering the receiving area flows out of the outflow opening under the guide of the flow guide plate. Compared with a traditional feeding box, arrangement of a short pipe and a straight pipe is omitted, the problem that the short pipe is blocked does not need to be worried about, blockage clearing work is omitted, the working efficiency of the magnetic separator is guaranteed, meanwhile, ore pulp falling into the bearing area in a concentrated mode is guided by the flow guide plate, and ore pulp flowing out of the outflow opening is relatively uniform; and the water cannot flow out from a certain position of the outflow port in a concentrated manner.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic separator feeding, and in particular to a magnetic separator feeding device and a feeding method. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Magnetic separator is a common ore processing equipment, mainly used to separate magnetic minerals from mixed ores. It uses the different response characteristics of magnetic minerals and non-magnetic minerals under the action of magnetic field to separate magnetic minerals from raw materials through magnetic force.

[0004] Magnetic separators usually consist of a magnetic field system, a feed box, a slurry tank and a discharge device. The magnetic field system generates a strong magnetic field, which adsorbs magnetic minerals on the magnetic poles, while non-magnetic minerals are repelled from the magnetic field. The material enters the slurry tank from the feed box. Under the action of the magnetic field, the magnetic minerals are adsorbed on the magnetic poles to form magnetic products, while the non-magnetic minerals are discharged through the discharge device.

[0005] The feed box structure in the prior art is a short tube with closed ends and a diversion trough. The slurry flows from the feed pipe into the short tube, and then the short tube passes through three straight tubes evenly distributed in the middle to guide the slurry into the diversion trough. Finally, the slurry flows from the diversion trough into the slurry tank of the magnetic separator.

[0006] In the slurry transportation, due to the influence of factors such as the slurry not being demagnetized and the slurry particle size, coarse particles of slurry are easily deposited in the short pipe and straight pipe at the feed box, causing pipe blockage and uneven feeding of the magnetic separator. Moreover, the blockage of the feed box is not easy to deal with. The blind heads at both ends of the short pipe must be removed to clean the short pipe, which is time-consuming and labor-intensive, and seriously affects the working efficiency of the magnetic separator. Summary of the invention

[0007] The main purpose of the present invention is to provide a feeding device and a feeding method for a magnetic separator which are not easy to be blocked and can ensure the working efficiency of the magnetic separator.

[0008] To achieve the above object, the technical solution of the present invention is implemented as follows: a magnetic separator feeding device, comprising a diverter trough, a flow outlet is opened on one side of the bottom of the diverter trough, and the slurry entering the diverter trough flows out from the flow outlet;

[0009] The diverter trough is divided into a receiving area, and the slurry is transported to the receiving area through a feed pipe. A plurality of guide plates are arranged at the bottom of the diverter trough, one end of the plurality of guide plates is evenly spaced along the length direction of the flow outlet, and the other end is evenly distributed in the receiving area in a circumferential direction. The slurry entering the receiving area flows out from the flow outlet under the guidance of the guide plates.

[0010] Furthermore, a conical slope is provided in the receiving area, and the conical slope is in a semi-conical block shape. A vertical side of the conical slope is in contact with the side wall of the diversion trough, and one end of a plurality of guide plates is fan-shapedly distributed around the conical slope. The conical slope is located directly below the feed pipe, and the slurry output from the feed pipe diffuses from the top of the conical slope along the slope surface of the conical slope to the surrounding areas.

[0011] Furthermore, a slope is formed at the bottom of the diversion groove, a higher end of the slope is located at the receiving area, and a lower end of the slope is located at the flow outlet, and each guide plate is arranged on the slope.

[0012] Furthermore, in the diversion trough, inclined baffles are respectively provided at the bottom of the two side walls adjacent to the side wall where the outflow port is located, the top of the baffle is connected to the corresponding side wall, and the bottom of the baffle is connected to the bottom wall of the diversion trough to prevent the slurry from accumulating in the corners of the diversion trough.

[0013] Furthermore, a sealing plate is provided at the position of the flow outlet corresponding to the diverter groove. The sealing plate is slidably arranged on the diverter groove and seals with the side wall of the diverter groove to control the opening height of the flow outlet. The diverter groove is also provided with a lifting component for driving the sealing plate to move up and down relative to the side wall of the diverter groove.

[0014] Furthermore, a guide channel is formed between two adjacent guide plates, and one end of the guide channel corresponding to the flow outlet is spaced from the flow outlet, and guide blocks having the same number as the guide channels are arranged at the space, and the guide blocks are used to guide the slurry flowing out of the guide channel to flow to both sides of the guide channel, mix with the slurry flowing out of the adjacent guide channel, and finally pass through the space area and flow out from the flow outlet.

[0015] Furthermore, the guide block is semi-conical, with the tip of the semi-conical facing the guide channel and the tail end facing the outflow outlet, and the plane side of the semi-conical guide block is in contact with the bottom surface of the diversion groove.

[0016] Furthermore, a guide component is provided in the diversion trough, the output port of the guide component is located directly above the conical slope, and the inlet and outlet of the guide component are located directly below the feed pipe, for receiving the ore slurry output by the feed pipe and guiding the ore slurry to directly above the conical slope.

[0017] Furthermore, a slot cover is provided on the top of the diverter slot, and one end of the feed pipe passes through the slot cover and enters the diverter slot.

[0018] A feeding method for a magnetic separator is provided, wherein a diverter trough is provided, a flow outlet is provided on one side of the bottom of the diverter trough, a receiving area is divided at the bottom of the diverter trough, and diversion channels are evenly distributed around the receiving area. The ore slurry transported by the feeding pipe falls on the receiving area and diffuses around, is guided to the flow outlet through each diversion channel, and flows out from the flow outlet.

[0019] The beneficial effects of the present invention are embodied in:

[0020] Compared with the traditional feeding box, the present invention eliminates the arrangement of short pipes and straight pipes, and there is no need to worry about the problem of short pipe blockage, thus eliminating the work of clearing the blockage and ensuring the working efficiency of the magnetic separator. At the same time, the ore slurry concentrated in the receiving area is guided by the guide plate, so that the ore slurry flowing out of the outlet is relatively uniform and will not flow out from a certain point of the outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a schematic diagram of the internal structure of the feeding device of the magnetic separator of the present invention;

[0023] Figure 2 It is a three-dimensional view of the feeding device of the magnetic separator of the present invention.

[0024] Description of reference numerals:

[0025] 1. Diversion trough; 11. Outlet; 12. Baffle; 13. Sealing plate; 14. Lifting component; 2. Feed pipe; 3. Guide plate; 4. Conical slope; 5. Guide block; 6. Guide component; 7. Tank cover. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0027] See also Figure 1 to Figure 2 .

[0028] The present invention discloses a feeding device for a magnetic separator, comprising a diverter trough 1, a flow outlet 11 is provided on one side of the bottom of the diverter trough 1, and the ore pulp entering the diverter trough 1 flows out from the flow outlet 11 and enters the ore pulp tank of the magnetic separator;

[0029] The diverter trough 1 is divided into a receiving area, and the slurry is transported to the receiving area through the feed pipe 2. A plurality of guide plates 3 are arranged at the bottom of the diverter trough 1. One end of the plurality of guide plates 3 is evenly spaced along the length direction of the flow outlet 11, and the other end is evenly distributed in the receiving area in the circumferential direction. A guide channel is formed between two adjacent guide plates 3 and between the guide plates 3 and the side walls of the diverter trough 1. The slurry entering the receiving area flows out from the flow outlet 11 under the guidance of the guide plates 3.

[0030] Compared with the traditional feed box, the present invention eliminates the arrangement of short pipes and straight pipes, and there is no need to worry about the problem of short pipe blockage, thus eliminating the work of clearing the blockage and ensuring the working efficiency of the magnetic separator. At the same time, the slurry concentrated in the receiving area is guided by the guide plate 3, so that the slurry flowing out of the flow outlet 11 is relatively uniform and will not flow out from a certain point of the flow outlet 11.

[0031] In one embodiment, a conical slope 4 is provided in the receiving area, and the conical slope 4 is in a semi-conical block shape. The vertical side of the conical slope 4 is in contact with the side wall of the diverter 1 away from the outlet 11. One end of a plurality of guide plates 3 is fan-shapedly distributed around the conical slope 4. The conical slope 4 is located directly below the feed pipe 2. The slurry output by the feed pipe 2 diffuses around along the slope of the conical slope 4 from the top of the conical slope 4. With this design, the conical slope 4 can better make the slurry enter the guide channel where each guide plate 3 is located evenly on the one hand, and on the other hand, the slurry flushed around along the slope of the conical slope 4 can stir the mineral material deposited at the bottom of the receiving area, effectively preventing the slurry from depositing in the receiving area and the front end of the guide channel, and ensuring the uniformity of the slurry entering each guide channel.

[0032] In one embodiment, a slope is formed at the bottom of the diverter trough 1, the higher end of the slope is located at the receiving area, the lower end of the slope is located at the outlet 11, and each guide plate 3 is arranged on the slope. The design of the slope can effectively prevent the slurry from being deposited at the bottom of the diverter trough 1, and at the same time, combined with the conical slope 4, the slurry can flow quickly in each guide channel at a faster flow rate, further preventing the slurry from being deposited at the bottom of the diverter trough 1.

[0033] Preferably, the slope of the ramp is not less than 5° and not more than 30°.

[0034] In one embodiment, in the diverter trough 1, inclined baffles 12 are respectively provided at the bottom of the two side walls adjacent to the side wall where the outflow outlet 11 is located, the top of the baffle 12 is connected to the corresponding side wall, and the bottom of the baffle 12 is connected to the bottom wall of the diverter trough 1 to prevent the slurry from accumulating in the corners of the diverter trough 1.

[0035] In one embodiment, a sealing plate 13 is provided at the position of the flow outlet 11 of the diverter groove 1. The sealing plate 13 is slidably arranged on the diverter groove 1 and sealed with the side wall of the diverter groove 1 to control the opening height of the flow outlet 11. The diverter groove 1 is also provided with a lifting component 14 for driving the sealing plate 13 to move up and down relative to the side wall of the diverter groove 1.

[0036] In a specific implementation, the lifting component 14 can be an electric telescopic component, a pneumatic telescopic component or a hydraulic telescopic component. Of course, an electric hoist can also be used to drive the plugging plate 13 to move up and down, so as to realize automatic adjustment of the opening height of the outlet 11 and control the outflow of the slurry from the diverter 1 to match the processing capacity of the magnetic separator. In practice, it is necessary to reduce the speed of the magnetic separator from time to time for inspection and maintenance of the magnetic separator. When the speed of the magnetic separator is reduced, the outflow of the slurry needs to be reduced accordingly. The present application drives the plugging plate 13 to move up and down through the lifting component 14 to realize automatic adjustment of the outflow of the slurry.

[0037] In one embodiment, one end of the guide channel corresponding to the outlet 11 is spaced from the outlet 11, and the guide blocks 5 having the same number as the guide channels are arranged at the space, and the guide blocks 5 are used to guide the slurry flowing out of the guide channel to flow to both sides of the guide channel, mix with the slurry flowing out of the adjacent guide channel, and finally pass through the spaced area and flow out of the outlet 11. This design further ensures the uniformity of the slurry flowing out of the outlet 11 and improves the effective processing capacity of the magnetic separator.

[0038] In one embodiment, the guide block 5 is semi-conical, with the tip of the semi-conical facing the guide channel and the tail facing the outlet 11, and the plane side of the semi-conical guide block 5 is in contact with the bottom surface of the diverter trough 1. With this design, when the flow rate is large, the resistance is small, and the impact on the flow rate and flow velocity is small. At the same time, the outflowing slurry can be better diffused in the interval area, thereby improving the uniformity of the slurry.

[0039] In one embodiment, a guide component 6 is provided in the diversion trough 1, and the output port of the guide component 6 is located directly above the conical slope 4, and the inlet and outlet of the guide component 6 are located directly below the feed pipe 2, for receiving the slurry output by the feed pipe 2 and guiding the slurry to the top of the conical slope 4.

[0040] In a specific implementation, the guide component 6 can be configured to be funnel-shaped, and the guide component 6 can further ensure the uniformity of the slurry flowing from the receiving area into each guide channel.

[0041] In one embodiment, a slot cover 7 is provided on the top of the diverter slot 1, and one end of the feed pipe 2 passes through the slot cover 7 and enters the diverter slot 1. This design can prevent external impurities from entering the diverter slot 1, ensuring the normal operation of the magnetic separator.

[0042] Preferably, the tank cover 7 is sealed with the top of the diverter tank 1, and the feed pipe 2 is sealed with the tank cover 7. With this design, the material flowing into the diverter tank 1 from the feed pipe 2 will increase the pressure in the diverter tank 1, and the increased pressure will cause the slurry to flow out of the outlet 11 more smoothly.

[0043] The present invention also discloses a magnetic separator feeding method, which comprises:

[0044] A diverter trough 1 is provided, and a flow outlet 11 is opened on one side of the bottom of the diverter trough 1. A receiving area is divided at the bottom of the diverter trough 1, and diversion channels are evenly distributed around the receiving area. The slurry transported by the feeding pipe 2 falls on the receiving area and diffuses around to be drained to the flow outlet 11 through each diversion channel, and flows out from the flow outlet 11.

[0045] Compared with the traditional feeding method, this feeding method eliminates the setting of short pipes and straight pipes, and there is no need to worry about the problem of short pipe blockage, which saves the work of clearing the blockage and ensures the working efficiency of the magnetic separator. At the same time, the slurry concentrated in the receiving area is guided by the guide plate 3, which also ensures that the slurry flowing out of the outlet 11 is relatively uniform and will not flow out from a certain point of the outlet 11.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0047] It should be noted that if the embodiments of the invention involve directional indications (such as up and down), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the invention.

Claims

1. A magnetic separator feeding device, characterized in that: It comprises a diverter trough (1), wherein a flow outlet (11) is provided on one side of the bottom of the diverter trough (1), and the ore slurry entering the diverter trough (1) flows out from the flow outlet (11); The diverter trough (1) is divided into a receiving area, and the ore pulp is transported to the receiving area through a feed pipe (2). A plurality of guide plates (3) are arranged at the bottom of the diverter trough (1), one end of the plurality of guide plates (3) is evenly spaced along the length direction of the flow outlet (11), and the other end is evenly distributed in the receiving area in a circumferential direction. The ore pulp entering the receiving area flows out of the flow outlet (11) under the guidance of the guide plates (3).

2. The magnetic separator feeding device according to claim 1, characterized in that: A conical slope (4) is provided in the receiving area. The conical slope (4) is in the shape of a semi-conical block. A vertical side of the conical slope (4) is in contact with the side wall of the diversion trough (1). One end of a plurality of guide plates (3) is distributed in a fan shape around the conical slope (4). The conical slope (4) is located directly below the feed pipe (2). The ore slurry output from the feed pipe (2) diffuses from the top of the conical slope (4) along the slope surface of the conical slope (4) to the surrounding areas.

3. The magnetic separator feeding device according to claim 1 or 2, characterized in that: The bottom of the diversion trough (1) is formed with a slope, the higher end of the slope is located at the receiving area, and the lower end of the slope is located at the flow outlet (11), and each guide plate (3) is arranged on the slope.

4. The magnetic separator feeding device according to claim 1 or 2, characterized in that: In the diverter trough (1), inclined baffles (12) are respectively provided at the bottom of two side walls adjacent to the side wall where the outflow port (11) is located, the top of the baffle (12) is connected to the corresponding side wall, and the bottom of the baffle (12) is connected to the bottom wall of the diverter trough (1), so as to prevent the ore pulp from accumulating in the corners of the diverter trough (1).

5. The magnetic separator feeding device according to claim 1 or 2, characterized in that: A blocking plate (13) is provided at the position of the flow outlet (11) of the diverter groove (1), and the blocking plate (13) is slidably arranged on the diverter groove (1) and is sealed with the side wall of the diverter groove (1) to control the opening height of the flow outlet (11); the diverter groove (1) is also provided with a lifting component (14) for driving the blocking plate (13) to move up and down relative to the side wall of the diverter groove (1).

6. The magnetic separator feeding device according to claim 1 or 2, characterized in that: A guide channel is formed between two adjacent guide plates (3), one end of the guide channel corresponding to the outlet (11) is spaced apart from the outlet (11), and guide blocks (5) of the same number as the guide channels are arranged at the space, the guide blocks (5) being used to guide the slurry flowing out of the guide channel to flow toward both sides of the guide channel, to mix with the slurry flowing out of the adjacent guide channel, and finally to pass through the spaced area and flow out of the outlet (11).

7. The magnetic separator feeding device according to claim 6, characterized in that: The guide block (5) is semi-conical, with the tip of the semi-conical facing the guide channel and the tail end facing the outflow outlet (11), and the plane side of the semi-conical guide block (5) is in contact with the bottom surface of the diversion groove (1).

8. The magnetic separator feeding device according to claim 1 or 2, characterized in that: A flow guide component (6) is provided in the diverter trough (1), the output port of the flow guide component (6) is located directly above the conical slope (4), and the inlet and outlet of the flow guide component (6) are located directly below the feed pipe (2), and are used to receive the ore slurry output by the feed pipe (2) and guide the ore slurry to directly above the conical slope (4).

9. The magnetic separator feeding device according to claim 1 or 2, characterized in that: A slot cover (7) is provided on the top of the diverter slot (1), and one end of the feed pipe (2) passes through the slot cover (7) and enters the diverter slot (1).

10. A method for feeding a magnetic separator, characterized in that: A diverter trough (1) is provided, and a flow outlet (11) is provided on one side of the bottom of the diverter trough (1). A receiving area is divided at the bottom of the diverter trough (1), and diversion channels are evenly distributed around the receiving area. The ore slurry transported by the feed pipe (2) falls into the receiving area and diffuses around to be guided to the flow outlet (11) through the diversion channels, and flows out from the flow outlet (11).

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