CN111744665A

CN111744665A - Double-station sorting device

Info

Publication number: CN111744665A
Application number: CN202010677434.0A
Authority: CN
Inventors: 王云; 王兆连; 姚兴; 高君
Original assignee: Weifang Xinli Superconducting Magnetic Technology Co ltd
Current assignee: Weifang Xinli Superconducting Magnetic Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-10-09

Abstract

The invention discloses a double-station sorting device, which belongs to the technical field of superconducting magnetic separation devices and comprises the following components: the superconducting magnet system comprises a superconducting magnet, an iron yoke is covered outside the superconducting magnet, and the superconducting magnet and the iron yoke form a separation cavity together; the separation system comprises a separation plate frame, wherein two separation cylinders are arranged on the separation plate frame, the upper ends and the lower ends of the separation cylinders are both provided with openings, magnetic conductive medium assemblies are arranged in the separation cylinders, and discharging assemblies are arranged at the lower ends of the separation cylinders; the sorting plate frame is connected with a supporting component; the feeding and cleaning system comprises a distributor arranged above the sorting plate frame, a forward flushing head arranged outside the sorting cavity and a reverse flushing head communicated with the lower end of the sorting barrel; according to the invention, the upper end of the separation cylinder is provided with the opening, ore pulp discharged from the distributing device can uniformly fall onto the magnetic conductive medium component in the separation cylinder after passing through the opening, and automatically passes through the magnetic conductive medium component under the action of gravity, so that no ore pulp is remained, and the magnetic separation effect of the magnetic conductive medium component is effectively ensured.

Description

Double-station sorting device

Technical Field

The invention relates to the technical field of superconducting magnetic separation devices, in particular to a double-station sorting device.

Background

China is a large country for mineral production and consumption, and mineral resources such as kaolin, quartz, bauxite, polycrystalline silicon, rare earth and the like have great demands. In recent years, the rapid development of the industries such as building material ceramics, optical glass, photovoltaics, optical communication, semiconductors and the like in China is continuously promoted to the upstream of an industrial chain with higher added value, the living standard of substances is continuously improved, the requirement on raw materials is higher and higher, and the requirement on high-purity raw materials is more and more urgent. However, due to the limitation of separation technology and process equipment, high-purity raw materials and single oxides of rare minerals still have strong dependence on import.

The magnetic separation device is mainly suitable for separating substances with magnetic differences, is one of important devices for separating raw materials, and is mainly divided into a permanent magnet type, an electromagnetic type and a superconducting magnetic type; the superconducting magnetic separation device is equipment which utilizes a superconducting state conductive coil to generate a strong magnetic field and separates ore particles in ore pulp according to the magnetic difference of different ore particles; compared with permanent magnet type and electromagnetic type magnetic separation modes, the magnetic field intensity provided by the superconducting magnetic separation mode is 2-3 times and 3-8 times of the maximum magnetic field intensity provided by the permanent magnet type and the electromagnetic type, the capture rate of magnetic particles in the superconducting magnetic separation mode is far higher than that in the traditional mode, and the superconducting magnetic separation mode is an advanced device in the mineral separation industry at present.

The existing superconducting magnetic separation device is a double-drum superconducting magnetic separation device which is a magnetic separation processing device mainly facing kaolin. The kaolin has the physical properties of fine granularity (generally-250 meshes) and relatively high viscosity, and is easily prepared into suspension ore pulp with the concentration of less than 18 percent after a certain proportion of dispersing agent is added, and then the wet magnetic separation treatment can be carried out by using a double-cylinder superconducting magnetic separation device. However, the double-drum superconducting magnetic separator has very limited processing capacity for ore pulp with coarse particle size (> -150 meshes) and large concentration (concentration > 30%), and is not suitable for materials with coarse particle size and small viscosity and materials which are inconvenient to prepare into suspension.

In the existing superconducting magnetic separation device, prepared ore pulp usually passes through a magnetic conductive medium in a horizontal flowing mode, the ore pulp is inevitably influenced by gravity, when the ore pulp passes through at a lower flow rate, the ore pulp is influenced by gravity and cannot be fully contacted with the magnetic conductive medium, the magnetic separation effect is influenced, and the superconducting magnetic separation device is particularly suitable for high-concentration ore pulp. And when a magnetic separation process is finished, the internal channel of the separation cavity structure and the porous space of the magnetic conduction medium can both retain ore pulp, and the retained ore pulp can only be replaced by the entering water flow, so that the concentration of the ore pulp is inevitably diluted. Because the magnetic media are all nested inside the sealed sorting cavity structure, changing the magnetic media is complicated and time-consuming (at least 4 hours), and requires professional operators to operate.

In conclusion, the application range of the superconducting magnetic separation device to wet magnetic separation of more minerals is expanded, gravity factors are reasonably avoided and even utilized, and the technical problem to be solved urgently when the superconducting magnetic separation device is popularized and applied is solved.

Disclosure of Invention

For the problems in the prior art, the double-station sorting device provided by the invention has the advantages that the upper end of the sorting cylinder is provided with the opening, and the ore pulp passes through the magnetic conductive medium component from top to bottom under the action of gravity, so that the magnetic separation effect of the magnetic conductive medium component is effectively ensured, the use state of the magnetic conductive medium component can be observed in real time, and the application problem of the ore pulp with wider particle size distribution range or higher magnetic particle specific gravity or higher concentration or lower flow velocity in the field of superconducting magnetic separation can be effectively solved.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

duplex position sorting unit includes: the superconducting magnet system comprises a superconducting magnet, the superconducting magnet is connected with a refrigerating assembly, an iron yoke covers the outside of the superconducting magnet, and the superconducting magnet and the iron yoke form a separation cavity together; the sorting system comprises a horizontally arranged sorting plate frame, wherein two sorting cylinders are sequentially arranged on the sorting plate frame along the horizontal direction, the upper ends and the lower ends of the sorting cylinders are both provided with openings, magnetic conductive medium assemblies are arranged in the sorting cylinders, and discharging assemblies are arranged at the lower ends of the sorting cylinders; the sorting plate frame is connected with a supporting component which supports the sorting plate frame to horizontally reciprocate; when the sorting plate frame moves horizontally back and forth, the two sorting cylinders alternately enter the sorting cavity; the feeding and cleaning system comprises a distributor, a forward flushing head and a reverse flushing head, wherein the distributor is arranged in the sorting cavity and is positioned right above the sorting plate frame, the forward flushing head is arranged outside the sorting cavity and is positioned above the sorting plate frame, and the reverse flushing head is communicated with an opening at the lower end of the sorting cylinder.

As a preferred technical solution, the superconducting magnet includes a superconducting coil and a dewar, and the refrigeration component includes a refrigerator.

As a preferable technical scheme, a plurality of the magnetic conductive medium assemblies are arranged in each separation cylinder, and the plurality of the magnetic conductive medium assemblies are distributed along the horizontal direction.

As a preferred technical scheme, the magnetic conductive medium assembly comprises a plurality of magnetic conductive media distributed along the vertical direction, and the magnetic conductive media are steel plate meshes and/or medium boxes and/or steel wool.

As a preferable technical solution, the discharging assembly is provided as a stepped groove, the stepped groove is inclined downward in a direction from a position of the end of the sorting cylinder farthest from the sorting plate frame to a position of the sorting cylinder closest to the end of the sorting plate frame, and a bottom surface of the stepped groove corresponding to a position right below each magnetic conductive medium assembly is provided as an inclined surface; the reverse flushing head is communicated with the lowest end of the stepped groove.

As a preferable mode, the inclination angle of the inclined surface is gradually reduced in a direction from a position where the separation drum is farthest from the end of the separation plate frame to a position where the separation drum is closest to the end of the separation plate frame.

As a preferred technical scheme, the supporting component comprises a support fixedly connected with the sorting plate frame and a track arranged outside the sorting cavity, the support is movably connected with the track, and a driving component for driving the support to move is arranged between the support and the track.

As a preferred technical scheme, the distributing device is connected with a raw ore pulp tank through a pipeline, the forward flushing head is connected with a water storage tank through a pipeline, and pumps are arranged on the pipeline between the distributing device and the raw ore pulp tank and the pipeline between the forward flushing head and the water storage tank.

As a preferred technical scheme, the forward flushing head is connected with a telescopic assembly which drives the forward flushing head to move.

As a preferable technical solution, a drainage channel which is through from top to bottom is provided at a position on the sorting plate frame, which is located at the side portion of the sorting cylinder.

The beneficial effects of the invention are as follows:

1. according to the invention, the upper end of the separation cylinder is provided with the opening, ore pulp discharged from the distributing device can uniformly fall onto the magnetic conductive medium component in the separation cylinder after passing through the opening, and automatically passes through the magnetic conductive medium component under the action of gravity, so that no ore pulp is remained, and the magnetic separation effect of the magnetic conductive medium component is effectively ensured.

2. The reverse flushing head can clean the magnetic conductive medium component in a direction opposite to the flow direction of ore pulp, can quickly clean magnetic particles captured by the magnetic conductive medium component from the magnetic conductive medium component through the drainage channel, and can effectively improve the cleaning effect of the magnetic conductive medium component and avoid the magnetic conductive medium component from being blocked by combining the forward flushing head.

3. When the magnetic separation device is used, the upper end of the magnetic conduction medium assembly is exposed in the atmospheric environment, is not shielded by other loop structures and is directly visible, the using state of the magnetic conduction medium assembly can be observed in real time through the upper port of the separation cylinder, and the time for the separation cylinder to enter and exit the separation cavity and replace the magnetic conduction medium assembly can be more accurately mastered.

4. The flow direction and the gravity of the ore pulp are consistent, the problem that the ore pulp, particularly high-concentration ore pulp, is remained in the magnetic conductive medium assembly in a large quantity can not exist, the magnetic separation effect of the magnetic conductive medium does not have high forward relevance with the flow rate of the ore pulp, and the application problem of the ore pulp with wider particle size distribution range or higher magnetic particle specific gravity or higher concentration or lower flow rate in the field of superconducting magnetic separation is effectively solved.

Drawings

FIG. 1 is a schematic overall structure diagram of one embodiment of a double-station sorting device according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

fig. 4 is a schematic view of the retraction assembly of fig. 3 after retraction.

In the figure: 11-superconducting magnet, 12-iron yoke, 13-separation cavity, 21-separation plate frame, 22-separation barrel, 23-magnetic conductive medium component, 24-discharging component, 25-bracket, 26-rail, 27-drainage channel, 28-bottom plate, 31-distributor, 32-positive flushing head, 33-raw slurry tank, 34-pump and 35-telescopic component.

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 4, an embodiment of an open type sorting apparatus provided by the present invention includes: the superconducting magnet system comprises a superconducting magnet 11, the superconducting magnet 11 is connected with a refrigeration assembly, an iron yoke 12 covers the outside of the superconducting magnet 11, the superconducting magnet 11 and the iron yoke 12 jointly form a sorting cavity 13, and a strong magnetic field can be formed in the sorting cavity 13 after the superconducting magnet 11 is electrified; the sorting system comprises a horizontally arranged sorting plate frame 21, the sorting plate frame 21 is sequentially provided with two sorting cylinders 22 along the horizontal direction, the upper ends of the sorting cylinders 22 are both opened, magnetic conductive medium assemblies 23 are arranged in the sorting cylinders 22, and the lower ends of the sorting cylinders 22 are both provided with discharging assemblies 24; the sorting plate frame 21 is connected with a supporting component for supporting the sorting plate frame 21 to horizontally reciprocate; when the sorting plate frame 21 horizontally reciprocates, the two sorting cylinders 22 can alternately enter the sorting cavity 13; the feeding and cleaning system comprises a distributing device 31, a forward flushing head 32 and a reverse flushing head, wherein the distributing device 31 is arranged inside the sorting cavity 13 and is positioned right above the sorting plate frame 21, the forward flushing head 32 is arranged outside the sorting cavity 13 and is positioned above the sorting plate frame 21, the reverse flushing head is communicated with an opening at the lower end of the sorting cylinder 22, the distributing device 31 is used for distributing ore pulp to the magnetic conductive medium assembly 23 positioned right below the distributing device, and under the action of a strong magnetic field, the magnetic separation of the ore pulp is realized; the forward flushing head 32 is used for flushing magnetic particles adsorbed on the magnetic conductive medium assembly 23 under the action of gravity outside a high-intensity magnetic field, and the flushing direction of the reverse flushing head is opposite to that of the forward flushing head 32, so that the magnetic particles on the magnetic conductive medium assembly 23 can be effectively flushed, and the magnetic conductive medium assembly 23 can be prevented from being blocked.

The shape of the end openings at both ends of the sorting chamber 13 is usually circular, and may be polygonal; the section of the iron yoke 12 along the axis of the sorting cavity 13 is polygonal, such as hexagonal, and the two ends of the iron yoke 12 are provided with openings corresponding to the positions of the sorting cavity 13, so that the sorting plate frame 21 can move conveniently; the superconducting magnet system composed of the superconducting magnet 11 and the iron yoke 12 restrains magnetic lines of force in the sorting cavity 13 to provide a background magnetic field for magnetic separation operation, the outside of the iron yoke 12 is a low magnetic field area, a leakage field not higher than 100Gs exists only in a micro area close to an opening on the end face of the iron yoke 12, and the magnetic conductive medium assembly 23 can be cleaned in the low magnetic field area.

In an embodiment of the present invention, the superconducting magnet 11 includes a superconducting coil and a dewar, the refrigeration component includes a refrigerator, the dewar is used for isolating the superconducting coil from the outside, the refrigerator can make the superconducting magnet 11 in a superconducting state by exchanging a heat exchange medium, and the heat exchange medium is usually liquid helium; preferably, the refrigerating machine can be connected with a water cooling machine, and the water cooling machine can further improve the refrigerating effect of the refrigerating machine; the superconducting coil is provided with a positive electrode connector and a negative electrode connector, the superconducting coil is connected with the output ends of the positive electrode and the negative electrode of the external excitation power supply through cables, the magnetic field intensity formed by the superconducting coil can be adjusted by adjusting the output current of the external excitation power supply, the operation is simple, and the adjustment and control of process personnel are facilitated.

In an embodiment of the present invention, referring to fig. 1, each separation cylinder 22 is provided with a plurality of magnetic conductive medium assemblies 23, the plurality of magnetic conductive medium assemblies 23 are distributed along a horizontal direction, so that ore slurry can be distributed from above the plurality of magnetic conductive medium assemblies 23 at the same time, and the magnetic separation speed of the ore slurry is increased; further, the sorting plate frame 21 is of a symmetrical structure, and the magnetic conductive medium assemblies 23 in the two sorting cylinders 22 are symmetrically arranged; specifically, the number of magnetically permeable media assemblies 23 in each cartridge 22 is typically 3-5.

On the basis of the above embodiment, the magnetic conductive medium assembly 23 includes a plurality of magnetic conductive media distributed along the vertical direction, and the magnetic conductive media are steel plate meshes and/or medium boxes and/or steel wool; each piece of magnetic conductive medium can carry out magnetic separation on the ore pulp flowing through the magnetic conductive medium assembly 23, and the magnetic separation effect of the ore pulp can be improved by increasing the layer number of the magnetic conductive medium; particularly, for ore pulp with thicker granularity or higher concentration or higher iron content, a steel plate mesh and/or a medium box and/or coarse steel wool are preferably adopted, the permeability is higher, and the blockage can be effectively avoided.

In an embodiment of the present invention, please refer to fig. 1, the discharging component 24 is a step groove disposed obliquely, the step groove is inclined downward along a direction from a position of the end of the separation plate frame 21 farthest from the separation cylinder 22 to a position of the separation cylinder 22 closest to the end of the separation plate frame 21, a bottom surface of the step groove right below each magnetic conductive medium component 23 is a tilted surface, the reverse flushing head is communicated with a lowest end of the step groove, the step groove can receive ore pulp magnetically separated by the magnetic conductive medium components 23, and the ore pulp flows out along the step groove under the action of gravity; when the back washing is performed by the back washing head, the back washing water flows into the magnetic conductive medium assembly 23 from bottom to top along the stepped groove. Preferably, the gradient of the stepped groove is 10-25 degrees, and the section of the stepped groove is arc-shaped. In other embodiments, the discharging assembly 24 may also be provided as a pipeline or chute communicated with the lower ends of all the separation cylinders 22, and the specific structure of the discharging assembly 24 is subject to the capability of rapidly discharging the magnetically separated slurry without residue.

On the basis of the above embodiment, in the direction from the position of the end of the sorting cylinder 22 farthest from the sorting plate frame 21 to the position of the sorting cylinder 22 closest to the end of the sorting plate frame 21, the inclination angle of the inclined surface is gradually reduced, that is, the inclination angle of the inclined surface of the stepped groove farther from the back flushing head is larger, so that the flow rate and the water pressure of the back flushing water flowing into different magnetic conductive medium assemblies 23 can be consistent or close to each other, thereby ensuring that the flushing effect on a plurality of magnetic conductive medium assemblies 23 is consistent during back flushing, and improving the back flushing effect; further, a control valve for controlling material discharge and reverse flushing water inlet is arranged at an outlet of the stepped groove, when the control valve is used for controlling discharge of ore pulp on the stepped groove, the control valve is matched with the magnetic separation process of the invention to control the stepped groove to discharge the ore pulp or magnetic particles, specifically, a concentrate storage tank and a magnetic tailing storage tank are correspondingly arranged at the bottom of the stepped groove, and the concentrate storage tank is arranged at a discharge port of the stepped groove when the separation cylinder 22 is positioned in the separation cavity 13 and is used for collecting the ore pulp after magnetic separation; the magnetic tailings storage tank is arranged at the discharge port of the stepped groove when the separation cylinder 22 is positioned outside the separation cavity 13 and is used for collecting the washed magnetic particles; when the control valve is used for controlling the reverse washing water to enter, the valves used for discharging materials on the stepped groove are all closed, and a closed channel is formed between the reverse washing head and the stepped groove, so that the reverse washing water can enter the separation cylinder 22 from the lower end of the separation cylinder 22 along the stepped groove to perform reverse washing on the magnetic conductive medium assembly 23; specifically, when four sorting cartridges 22 are provided, the inclination angles of the inclined surfaces on the stepped grooves may be 24 °, 20 °, 16 °, and 12 ° in this order.

In an embodiment of the present invention, referring to fig. 1, the supporting assembly includes a bracket 25 fixedly connected to the sorting plate frame 21 and a rail 26 disposed outside the sorting chamber 13, the bracket 25 is movably connected to the rail 26, a driving assembly for driving the bracket 25 to move is disposed between the bracket 25 and the rail 26, the bracket 25 is driven by the driving assembly to move along the rail 26 in the horizontal direction, so as to drive the two sorting cylinders 22 on the sorting plate frame 21 to alternately enter the sorting chamber 13, that is, one sorting cylinder 22 is located in the sorting chamber 13 for magnetic separation, and the other sorting cylinder 22 is located outside the sorting chamber 13 for cleaning; specifically, the rail 26 may be a guide rail or a sliding groove, the driving assembly may be an air cylinder, a hydraulic cylinder or an electric push rod to drive the bracket 25 to move in a telescopic manner, and the driving assembly may also be a pulley disposed between the bracket 25 and the rail 26. In order to ensure the stability of the support of the sorting plate frame 21, the support components can be symmetrically arranged at two ends of the sorting plate frame 21; in other embodiments, the supporting component may include a bracket 25 fixedly connected to the sorting plate frame 21 and a timing belt or a timing chain fixedly connected to the bracket 25, and the sorting plate frame 21 may also reciprocate by using the timing belt or the timing chain, and the timing belt or the timing chain may be driven by a motor to move.

In an embodiment of the present invention, referring to fig. 1 and fig. 2, a distributor 31 is connected to a raw ore pulp tank 33 through a pipeline, a forward flushing head 32 is connected to a water storage tank through a pipeline, a pump 34 is disposed on the pipeline between the distributor 31 and the raw ore pulp tank 33 and the pipeline between the forward flushing head 32 and the water storage tank, the distributing speed of the distributor 31 and the flushing force of the forward flushing head 32 can be controlled by the pump 34, and preferably, the pump 34 is an electronic pump; of course, the back flushing head may also be in communication with a water storage tank, or with other water supply tanks.

In an embodiment of the present invention, referring to fig. 3 and 4, the forward flushing head 32 is connected to a telescopic assembly 35 for driving the forward flushing head 32 to move, and the telescopic assembly 35 telescopically drives the forward flushing head 32 to move between the right above and the lateral upper side of the sorting cylinder 22, that is, when the magnetic conductive medium assembly 23 needs to be flushed, the telescopic assembly 35 pushes the forward flushing head 32 to the right above the magnetic conductive medium assembly 23 to flush; when the magnetic conductive medium assembly 23 needs to be detached or installed, the telescopic assembly 35 pushes the forward flushing head 32 to the upper side of the magnetic conductive medium assembly 23, so that interference is avoided; further, in order to enhance the fixing effect of the forward flushing head 32, a support frame movably connected with the forward flushing head 32 may be provided.

In an embodiment of the present invention, referring to fig. 3, a vertically through drainage channel 27 is disposed at a position on the separation plate frame 21, which is located at a side portion of the separation cylinder 22, when performing magnetic separation operation, ore slurry flows through the magnetic conductive medium assembly 23 from top to bottom in a vertical direction, an upper portion of the magnetic conductive medium assembly 23 contacts the ore slurry first and captures and adsorbs magnetic particles, inevitably, a capture point of the upper magnetic conductive medium assembly 23 is occupied and tends to be saturated, as shown by an arrow in fig. 3, a reverse flushing opposite to an ore slurry flow direction can be performed through the magnetic conductive medium assembly 23, and the magnetic particles captured by the magnetic conductive medium assembly 23 are rapidly separated from the magnetic conductive medium assembly 23 and are discharged through the drainage channel 27; furthermore, the bottom of the stepped groove is provided with a bottom plate 28, the bottom plate 28 and the stepped groove form a drainage chamber communicated with the drainage channel 27, the reverse flushing water containing magnetic particles flowing out of the drainage channel 27 flows into the drainage chamber, the magnetic particles can be conveniently collected, meanwhile, a beam flow plate can be arranged on the forward flushing head 32, and when the reverse flushing is carried out, the beam flow plate is arranged right above the sorting cylinder 22 and close to the upper end face of the sorting cylinder 22, so that the reverse flushing water can be effectively prevented from splashing on the upper end of the sorting cylinder 22, and the reverse flushing water is completely discharged through the drainage channel 27.

The specific working mode of the invention is as follows:

referring to fig. 1, the area inside the separation chamber 13 is a high magnetic field area, high-concentration ore slurry in the raw ore slurry tank 33 is uniformly distributed onto the magnetic conductive medium assembly 23 inside the separation cylinder 22 through the distributor 31 by the pump 34, and passes through the magnetic conductive medium assembly 23 under the action of gravity, and magnetic particles in the ore slurry are adsorbed onto the magnetic conductive medium assembly 23; the region outside the sorting cavity 13 is a low magnetic field region, the magnetic field of the low magnetic field region is less than 100GS, the magnetic conductive medium assembly 23 is reversely flushed by the reverse flushing head through the stepped groove, after a certain time, clear water of the water storage tank is sprayed on the magnetic conductive medium assembly 23 through the forward flushing head 32 by the pump 34 for forward flushing, and magnetic particles captured by the magnetic conductive medium assembly 23 can be effectively flushed; sorting plate frame 21 goes up two sorting chambers 13 and is located sorting chamber 13 respectively and selects separately the chamber 13 outside, can carry out foretell magnetic separation process and washing process respectively, can drive two sorting chambers 13 through drive assembly and get into in turn and select separately chamber 13, and two magnetic separation processes and the washing process of selecting separately chamber 13 also exchange simultaneously, can be incessant to the ore pulp magnetic separation.

It should be noted that all the structures (e.g., the inner wall of the separation cylinder 22, the magnetically conductive media assembly 23) that contact the slurry are preferably stainless steel and have a high surface finish to minimize the slurry from adhering to the surface.

It should be noted that the distribution range of the distributor 31 and the flushing range of the forward flushing head 32 are both matched with the size of the opening at the upper end of the sorting cylinder 22, so that the ore pulp discharged from the distributor 31 can be effectively and uniformly distributed on the magnetic conductive medium assembly 23, and the water sprayed from the forward flushing head 32 can comprehensively clean the magnetic conductive medium assembly 23; when magnetic conduction medium subassembly 23 was located the earth magnetic field region, can carry out a backwash in proper order and a forward wash, also can alternate carry out a lot of backwash and forward wash to guarantee to wash away the magnetic conduction granule on the magnetic conduction medium subassembly 23 completely for the standard.

It should be noted that the electric control valve, the pump 34 and the telescopic assembly 35 of the present invention may all be connected to a controller, and the automatic production of the present invention may be realized by real-time control of the electric control valve, the pump 34 and the telescopic assembly 35 by the controller, and preferably, the controller may be a PLC.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Duplex position sorting unit, characterized by includes:

the superconducting magnet system comprises a superconducting magnet, the superconducting magnet is connected with a refrigerating assembly, an iron yoke covers the outside of the superconducting magnet, and the superconducting magnet and the iron yoke form a separation cavity together;

the sorting system comprises a horizontally arranged sorting plate frame, wherein two sorting cylinders are sequentially arranged on the sorting plate frame along the horizontal direction, the upper ends and the lower ends of the sorting cylinders are both provided with openings, magnetic conductive medium assemblies are arranged in the sorting cylinders, and discharging assemblies are arranged at the lower ends of the sorting cylinders; the sorting plate frame is connected with a supporting component which supports the sorting plate frame to horizontally reciprocate; when the sorting plate frame moves horizontally back and forth, the two sorting cylinders alternately enter the sorting cavity;

the feeding and cleaning system comprises a distributor, a forward flushing head and a reverse flushing head, wherein the distributor is arranged in the sorting cavity and is positioned right above the sorting plate frame, the forward flushing head is arranged outside the sorting cavity and is positioned above the sorting plate frame, and the reverse flushing head is communicated with an opening at the lower end of the sorting cylinder.

2. The dual-station sorting device of claim 1, wherein the superconducting magnet comprises a superconducting coil and a dewar, and the refrigeration component comprises a refrigerator.

3. The double-station sorting device according to claim 1, wherein a plurality of the magnetically conductive medium assemblies are arranged in each sorting cylinder and are distributed in a horizontal direction.

4. The double-station sorting device according to claim 1 or 3, wherein the magnetic conductive medium assembly comprises a plurality of magnetic conductive media distributed in the vertical direction, and the magnetic conductive media are steel plate meshes and/or medium boxes and/or steel wool.

5. The double-station sorting device of claim 1, wherein the discharging assembly is provided as a stepped groove which is inclined downwards in a direction from a position of the sorting barrel at the end furthest from the sorting plate frame to a position of the sorting barrel at the end closest to the sorting plate frame, and a bottom surface of the stepped groove corresponding to a position right below each magnetic conductive medium assembly is provided as an inclined surface; the reverse flushing head is communicated with the lowest end of the stepped groove.

6. The dual station sorter of claim 5 wherein the angle of inclination of the inclined surfaces decreases in a direction from the location of the sorter drum furthest from the end of the sorter frame to the location of the sorter drum closest to the end of the sorter frame.

7. The double-station sorting device according to claim 1, wherein the support assembly comprises a support fixedly connected with the sorting plate frame and a track arranged outside the sorting cavity, the support is movably connected with the track, and a driving assembly for driving the support to move is arranged between the support and the track.

8. The double-station sorting device according to claim 1, wherein the distributing device is connected with a raw ore pulp tank through a pipeline, the forward flushing head is connected with a water storage tank through a pipeline, and pumps are arranged on the pipeline between the distributing device and the raw ore pulp tank and the pipeline between the forward flushing head and the water storage tank.

9. The double-station sorting device according to claim 1 or 8, wherein the forward flushing head is connected with a telescopic assembly for driving the forward flushing head to move.

10. The double-station sorting device of claim 1, wherein a drainage channel which is communicated up and down is arranged on the sorting plate frame at the position of the side part of the sorting cylinder.