CN110605179A - High-gradient magnetic separation experimental device - Google Patents
High-gradient magnetic separation experimental device Download PDFInfo
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- CN110605179A CN110605179A CN201910983373.8A CN201910983373A CN110605179A CN 110605179 A CN110605179 A CN 110605179A CN 201910983373 A CN201910983373 A CN 201910983373A CN 110605179 A CN110605179 A CN 110605179A
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- 238000007885 magnetic separation Methods 0.000 title claims abstract description 53
- 238000000926 separation method Methods 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000005284 excitation Effects 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000012800 visualization Methods 0.000 claims description 5
- 210000002268 wool Anatomy 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 description 27
- 230000004907 flux Effects 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 239000006148 magnetic separator Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses a high-gradient magnetic separation experimental device which comprises a support frame, a magnetic system and a separation box, wherein the magnetic system can be rotatably arranged on the support frame in a mode of changing the direction of a magnetic field of the magnetic system; the magnetic separation device is characterized in that a separation cavity is arranged in the magnetic system, the separation box comprises a medium section with a magnetic medium gathering inside, and the medium section is arranged in the separation cavity. According to the high-gradient magnetic separation experimental device, the experimental processes of multiple types of magnetic media in three different configuration modes are completed in one device, and the high-gradient magnetic separation experimental device is wider in application range and higher in value.
Description
Technical Field
The invention belongs to the field of magnetic separation equipment, and particularly relates to a magnetic separation experimental device.
Background
Along with the continuous consumption of high-grade easy-to-concentrate mineral resources, people pay more and more attention to the development and utilization of micro-fine particle weak magnetic mineral resources. The high gradient magnetic separation technology is an effective means for treating micro-fine particle weakly magnetic minerals, and changes the magnetic flux distribution of the original magnetic field by filling a magnetic gathering medium with a specific shape in a background magnetic field, so as to generate a high gradient magnetic field in a separation area and further generate stronger magnetic field force, thereby realizing the effective recovery of weakly magnetic particles and obtaining wide industrial application.
Gather magnetic medium and be the important component of high gradient magnet separator, gather magnetic medium toothed plate medium, steel sheet net and stick medium commonly used, wherein the stick medium is the most commonly used magnetic medium in the high gradient magnet separator, according to the flow direction of separation zone ore pulp, magnetic field direction and stick medium put the difference of direction, three kinds of common configuration modes: an axial configuration, a transverse configuration, and a longitudinal configuration. When the magnetic field is axially configured, the axial direction of the rod medium is parallel to the flowing direction of the ore pulp and is perpendicular to the direction of the magnetic field; when the three are transversely arranged, the three are vertical two by two; longitudinal arrangement means that the pulp flow direction is parallel to the magnetic field direction and both are perpendicular to the rod media axial direction. With reference to the arrangement described for the bar media, the tooth plate media is typically arranged axially, while the steel mesh media are typically arranged both transversely and longitudinally.
The experimental research device mainly used by domestic and foreign scholars develops a large amount of basic experimental research work aiming at high-gradient magnetic separation technologies in different configuration modes, and is a laboratory small-sized high-gradient magnetic separator, an experimental platform built by the scholars and the like.
The small high-gradient magnetic separator in a laboratory can only be operated in a black box, and has the defect that the experimental process is invisible. For example, chinese patent 201610061835.7 discloses a method for visualizing the results of high gradient experiments, which comprises, after the high gradient magnetic separation experiments are completed, maintaining the magnetic field and flow field, slowly lowering the liquid level in the separation region, exposing the magnetic medium from the fluid, and simultaneously introducing cold air at-10 to-5 ℃, rapidly cooling and solidifying the magnetic particles collected on the medium wire, keeping the profile, removing the magnetic field, taking out the medium box, performing subsequent analysis and detection, and further realizing the visualization of the particle trapping characteristics at the end point of the experiments.
The experimental platform that the scholars built by oneself is according to experimental demand and special design manufacturing, often does not have the product that can directly purchase in the market, has the characteristics that the structure is nimble simple, but most function singleness can not satisfy multiple experiment demand simultaneously. In addition, many self-designed visualization platforms are built based on a single magnetic medium and used for theoretical research, and experiments on multiple media or multiple types of media cannot be performed frequently.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects and shortcomings in the background technology and provide a high-gradient magnetic separation experimental device which can realize transverse, longitudinal and axial configuration and can carry out various types of magnetic medium experiments. In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a high-gradient magnetic separation experimental device comprises a support frame, a magnetic system and a separation box, wherein the magnetic system can be rotatably arranged on the support frame in a mode of changing the direction of a magnetic field of the magnetic system; the magnetic separation device is characterized in that a separation cavity is arranged in the magnetic system, the separation box comprises a medium section with a magnetic medium gathering inside, and the medium section is arranged in the separation cavity. The magnetic system rotates to provide magnetic fields in the vertical direction, the horizontal direction and any other magnetic field directions for the sorting cavity.
In the high-gradient magnetic separation experimental device, preferably, the magnetic system includes a magnetic yoke and a pair of excitation coils, the magnetic yoke includes a pair of strip-shaped magnetic yokes arranged oppositely and a pair of T-shaped magnetic yokes arranged oppositely, ends of the strip-shaped magnetic yokes and ends of transverse sections of the T-shaped magnetic yokes are connected with each other two by two, and the pair of excitation coils are respectively wound on vertical sections of the pair of T-shaped magnetic yokes. The strip-shaped magnetic yoke and the T-shaped magnetic yoke can be welded by a magnetic conductive welding rod. The area between the vertical section ends of the two T-shaped magnetic yokes is the separation cavity, preferably, when the exciting coil is wound, the end face of the exciting coil does not exceed the vertical section end of the T-shaped magnetic yoke.
In the above-mentioned high-gradient magnetic separation experimental apparatus, preferably, the magnetic system is rotatably connected with the support frame by a strip-shaped magnetic yoke in 360 degrees, and a rotating shaft of the magnetic system is parallel to a horizontal plane. The arrangement mode can realize that the included angle between the magnetic field direction and the horizontal plane is changed from 0-360 degrees, and the magnetic field direction and the horizontal plane are matched with different types of magnetic gathering media, so that experiments of various types of magnetic media in different configuration modes can be carried out.
In the above high-gradient magnetic separation experimental apparatus, preferably, the separation cavity is located between the ends of the vertical sections of the pair of T-shaped magnetic yokes.
In the above-mentioned high gradient magnetic separation experimental apparatus, preferably, the central point of the separation cavity is located on the rotating shaft of the magnetic system.
In the above-mentioned high-gradient magnetic separation experimental apparatus, preferably, the magnetic medium is any one of a bar medium, a steel mesh medium, a toothed plate medium and a steel wool medium, the number of the magnetic medium is one (row) or multiple (rows), and the magnetic medium is provided in the medium section in an adjustable manner in the axial direction. In the invention, the types and the installation angles of the magnetic gathering media can be flexibly changed to be matched with the changeable magnetic field direction, so that the experiment of carrying out various configuration modes (including but not limited to longitudinal, transverse and axial configuration) on different magnetic gathering media is realized.
In the above-mentioned high gradient magnetic separation experimental apparatus, preferably, the separation box further includes an ore feeding section and an ore discharging section, the ore feeding section is communicated with the inlet of the medium section, and the ore discharging section is communicated with the outlet of the medium section.
In the above-mentioned high-gradient magnetic separation experimental apparatus, preferably, a through hole for feeding or discharging ore is provided on the T-shaped magnetic yoke, and the through hole penetrates through the horizontal section and the vertical section of the T-shaped magnetic yoke. The proportion of the area of the through hole to the sectional area of the magnetic yoke is 0.01-50.00%. In the invention, when the longitudinal configuration experiment is carried out, the through hole can be used as a fluid channel for feeding or discharging ore pulp to a medium section positioned in the separation cavity or discharging the ore pulp.
In the above-mentioned high gradient magnetic separation experimental apparatus, it is preferred that the material of medium section is non-magnetic transparent material, high gradient magnetic separation experimental apparatus is still including being used for realizing the visual high-speed camera system of magnetic separation process. The medium section of the separation box is made of transparent non-magnetic-conductive materials, and after the separation box is provided with a high-speed camera system, visualization of high-gradient magnetic separation experimental processes in various configuration forms can be achieved.
In the above-mentioned high gradient magnetic separation experimental apparatus, preferably, the excitation coil is formed by winding a red copper rectangular conduit, the magnetic yoke is made of electrician pure iron, and the support frame is made of non-magnetic stainless steel, such as 304 stainless steel.
Among the above-mentioned high gradient magnetic separation experimental apparatus, preferred, the support frame can directly be arranged in ground, and more preferably, the support frame is through the installation at the bottom and turn to truckle and ground contact, is convenient for with equipment moving as a whole.
In the invention, by changing the experimental object, the type and the configuration mode of the magnetic gathering medium, the high-gradient magnetic separation experimental device provided by the invention can be used for weak magnetic mineral separation experimental research, the magnetic gathering medium can be a bar medium (all three configurations can be realized), a steel plate mesh medium (transverse and longitudinal configurations), a toothed plate medium (axial configuration) and the like, the high-gradient magnetic separation experimental device can also be used for the research of high-gradient magnetic separation treatment of wastewater and the like, and the magnetic medium can be steel wool (all three configurations can be realized) and the like.
Compared with the prior art, the invention has the advantages that:
according to the high-gradient magnetic separation experimental device, the experimental processes of multiple types of magnetic media in three different configuration modes are completed in one device, and the high-gradient magnetic separation experimental device is wider in application range and higher in value. Specifically, by utilizing one device, the magnetic system rotates to adjust the direction of a magnetic field, and the position of the separation box is adjusted and the installation angle of the magnetic gathering medium in the separation box is changed, the invention can carry out high-gradient magnetic separation experiments with longitudinal, transverse and axial configuration (or other configuration modes) under various magnetic media, and can be used for high-gradient magnetic separation experimental research in various fields including weak magnetic mineral separation and water treatment according to different experimental objects, types and configuration modes of the magnetic media.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the high gradient magnetic separation experimental apparatus in the example.
FIG. 2 is a schematic diagram of the magnetic system of FIG. 1.
Fig. 3 is a schematic structural view of the excitation coil of fig. 2 with the excitation coil removed.
Fig. 4 is a schematic structural view of the sorting cassette in the embodiment.
FIG. 5 is a schematic structural diagram of the high gradient magnetic separation experimental apparatus in the embodiment when a longitudinal configuration experiment is carried out by using a rod medium (the T-shaped magnetic yoke in the figure only shows the end of the vertical section of the T-shaped magnetic yoke).
FIG. 6 is a schematic structural diagram of the high gradient magnetic separation experimental apparatus in the embodiment when a horizontal configuration experiment is carried out by using a rod medium (the T-shaped magnetic yoke in the figure only shows the end of the vertical section of the T-shaped magnetic yoke).
FIG. 7 is a schematic structural diagram of the high gradient magnetic separation experimental apparatus in the embodiment when the rod medium is used to perform the axial configuration experiment (the T-shaped magnetic yoke in the figure only shows the end of the vertical section of the T-shaped magnetic yoke).
Figure 8 is a schematic structural view of a tooth plate medium.
Illustration of the drawings:
1. a support frame; 2. a magnetic system; 21. a magnetic yoke; 211. a strip-shaped magnetic yoke; 212. a T-shaped magnetic yoke; 22. an exciting coil; 3. a sorting box; 31. feeding a mine section; 32. a media segment; 321. a magnetic flux collecting medium; 33. ore discharging section; 4. a sorting cavity; 5. and a through hole.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Example (b):
as shown in fig. 1-4, the high gradient magnetic separation experimental apparatus of the present embodiment includes a support frame 1, a magnetic system 2 and a separation box 3, wherein the magnetic system 2 is rotatably disposed on the support frame 1 in a manner that the magnetic field direction of the magnetic system 2 can be changed; a sorting cavity 4 is arranged in the magnetic system 2, the sorting box 3 comprises a medium section 32 with a magnetic medium 321 arranged inside, and the medium section 32 is arranged in the sorting cavity 4.
In this embodiment, the magnetic system 2 includes a magnetic yoke 21 and a pair of excitation coils 22, the magnetic yoke 21 includes a pair of strip-shaped magnetic yokes 211 and a pair of T-shaped magnetic yokes 212, the ends of the strip-shaped magnetic yokes 211 and the ends of the transverse sections of the T-shaped magnetic yokes 212 are connected to each other two by two, and the pair of excitation coils 22 are respectively wound on the vertical sections of the pair of T-shaped magnetic yokes 212. The sorting cavity 4 is located between the vertical segment ends of a pair of T-shaped yokes 212.
In this embodiment, the magnetic system 2 is rotatably connected to the supporting frame 1 through the strip-shaped magnetic yoke 211 in 360 degrees, a rotating shaft of the magnetic system 2 is parallel to a horizontal plane, and a central point of the separation cavity 4 is located on the rotating shaft of the magnetic system 2.
In this embodiment, the magnetic flux concentration medium 321 is any one of a bar medium, a steel mesh medium, a toothed plate medium and a steel wool medium, the number of the magnetic flux concentration medium 321 is one (row) or multiple (rows), and the magnetic flux concentration medium 321 is adjustably disposed in the medium section 32 in the axial direction, that is, the installation angle of the magnetic flux concentration medium 321 can be changed to implement experiments with different configurations.
In this embodiment, the sorting box 3 further includes an ore feeding section 31 and an ore discharging section 33, the ore feeding section 31 is communicated with the inlet of the medium section 32, and the ore discharging section 33 is communicated with the outlet of the medium section 32. The ore pulp containing weakly magnetic minerals enters the medium section 32 through the ore feeding section 31, and substances which are not collected by the magnetic medium gathering 321 rod leave the separation box 3 through the ore discharging section 33.
In this embodiment, the material of the medium segment 32 is a non-magnetic-conductive transparent material, and the high-gradient magnetic separation experimental apparatus further includes a high-speed camera system for realizing visualization of the magnetic separation process.
In this embodiment, the T-shaped magnetic yoke 212 is provided with a through hole 5 for feeding or discharging ore, and the through hole 5 penetrates through the horizontal section and the vertical section of the T-shaped magnetic yoke 212.
In this embodiment, the exciting coil 22 is formed by winding a red copper rectangular conduit, the yoke 21 is made of electrical pure iron, and the support frame 1 is made of non-magnetic stainless steel.
In this embodiment, the type of the magnetic medium 321 and the installation manner in the medium segment 32 can be flexibly changed, and the rod medium is taken as an example, which is described as follows:
1. longitudinal placement experiments were performed using rod media.
As shown in fig. 5, by rotating the magnetic system, the end surface of the vertical section of the T-shaped yoke 212 is made parallel to the horizontal plane, i.e. the vertical section itself is perpendicular to the horizontal plane, to provide a magnetic field direction perpendicular to the horizontal plane, and the axial direction of the through-hole 5 is perpendicular to the horizontal plane. The axial direction of the sorting box 3 is perpendicular to the horizontal plane, and the medium section 32 of the sorting box is provided with a rod-shaped magnetic gathering medium 321 (only the magnetic gathering medium 321 is shown in the sorting box 3 in fig. 5), and the axial direction of the rod-shaped magnetic gathering medium 321 is parallel to the horizontal plane. The sort box 3 is placed between the end faces of the vertical sections of the T-shaped yoke 212. The ore feeding section 31 is arranged in the through hole 5 of the upper T-shaped magnetic yoke 212, and the ore discharging section 33 is arranged in the through hole 5 of the lower T-shaped magnetic yoke 212. In the above drawing, H0Indicates the direction of the magnetic field, V0The direction of the slurry flow is shown below.
When the longitudinal configuration experiment is carried out by using the rod medium, the experiment is carried out according to the following specific steps:
(1) cooling water is introduced into the conduit of the exciting coil 22; (2) direct current is introduced into the exciting coil 22, so that a high gradient magnetic field is generated around the rod-shaped magnetic gathering medium 321 positioned in the sorting cavity 4; (3) raw ore pulp enters a medium section 32 through an ore feeding section 31 of the separation box 3, part of particles are collected by a rod-shaped magnetic gathering medium 321, and the ore pulp which is not collected is discharged from an ore discharging section 33 and collected to obtain a tailing product; (4) removing the dc current from the exciting coil 22; (5) the cooling water introduced into the exciting coil 22 is cut off; (6) and (3) injecting clear water into the feeding section 31, and discharging the particles captured by the rod-shaped magnetic gathering medium 321 from the ore discharging section 33 to obtain a concentrate product.
2. Lateral configuration experiments were performed using rod media.
As shown in fig. 6, by rotating the magnetic system, the end surface of the vertical section of the T-shaped yoke 212 is made perpendicular to the horizontal plane, i.e. the vertical section itself is parallel to the horizontal plane, to provide a magnetic field direction parallel to the horizontal plane, and the axial direction of the through-hole 5 is parallel to the horizontal plane. The axial direction of the sorting box 3 is perpendicular to the horizontal plane, and the medium section 32 of the sorting box is provided with a rod-shaped magnetic gathering medium 321 (only the magnetic gathering medium 321 is shown in the sorting box 3 in fig. 6), and the axial direction of the rod-shaped magnetic gathering medium 321 is parallel to the horizontal plane. The sort box 3 is placed between the end faces of the vertical sections of the T-shaped yoke 212.
The specific steps for carrying out the lateral placement experiments are the same as the steps for carrying out the longitudinal placement experiments.
3. Axial configuration experiments were performed using rod media.
As shown in fig. 7, by rotating the magnetic system, the end surface of the vertical section of the T-shaped yoke 212 is made perpendicular to the horizontal plane, i.e. the vertical section itself is parallel to the horizontal plane, to provide a magnetic field direction parallel to the horizontal plane, and the axial direction of the through-hole 5 is parallel to the horizontal plane. The axial direction of the sorting box 3 is perpendicular to the horizontal plane, the medium section 32 of the sorting box is provided with a rod-shaped magnetic gathering medium 321 (only the magnetic gathering medium 321 is shown in the sorting box 3 in fig. 7), and the axial direction of the rod-shaped magnetic gathering medium 321 is perpendicular to the horizontal plane. The sort box 3 is placed between the end faces of the vertical sections of the T-shaped yoke 212.
The specific steps for carrying out the axial configuration experiment are the same as the steps for carrying out the longitudinal configuration experiment.
4. Axial configuration experiments were conducted using tooth plate media.
The rod-shaped magnetic medium 321 shown in fig. 7 is replaced by a toothed plate medium shown in fig. 8, so that the axial direction of the toothed plate medium is perpendicular to the horizontal plane, the configuration direction of other parts of the device is the same as that in fig. 7, and the specific experimental steps are the same as those of the step of carrying out a longitudinal configuration experiment by using the rod medium.
The above only shows a few typical magnetic medium gathering 321 and experimental procedures of a few typical configuration modes, but in the experiment of the apparatus in this embodiment, the type of the magnetic medium gathering 321 is not limited to a bar medium or a toothed plate medium, for example, the magnetic medium gathering 321 may be a steel mesh or a steel wool medium in longitudinal and transverse configurations. Also, in the present embodiment, the geometry of the ore feeding section 31, the medium section 32, and the ore discharging section 33 is not limited to the type shown in fig. 4.
Claims (10)
1. The high-gradient magnetic separation experimental device is characterized by comprising a support frame (1), a magnetic system (2) and a separation box (3), wherein the magnetic system (2) is rotatably arranged on the support frame (1) in a mode of changing the direction of a magnetic field of the magnetic system (2); the magnetic system (2) is internally provided with a separation cavity (4), the separation box (3) comprises a medium section (32) internally provided with a magnetic gathering medium (321), and the medium section (32) is arranged in the separation cavity (4).
2. The high-gradient magnetic separation experimental device according to claim 1, wherein the magnetic system (2) comprises a magnetic yoke (21) and a pair of excitation coils (22), the magnetic yoke (21) comprises a pair of oppositely arranged strip-shaped magnetic yokes (211) and a pair of oppositely arranged T-shaped magnetic yokes (212), the end portions of the strip-shaped magnetic yokes (211) and the end portions of the transverse sections of the T-shaped magnetic yokes (212) are connected with each other pairwise, and the pair of excitation coils (22) are respectively wound on the vertical sections of the pair of T-shaped magnetic yokes (212).
3. The high-gradient magnetic separation experimental device as claimed in claim 2, wherein the magnetic system (2) is rotatably connected with the support frame (1) through a strip-shaped magnetic yoke (211) in 360 degrees, and a rotating shaft of the magnetic system (2) is parallel to a horizontal plane.
4. The high-gradient magnetic separation experimental device as recited in claim 2, characterized in that the separation cavity (4) is located between ends of the vertical sections of the pair of T-shaped magnetic yokes (212).
5. The high gradient magnetic separation experimental device according to any one of claims 1 to 4, characterized in that the central point of the separation cavity (4) is located on the rotating shaft of the magnetic system (2).
6. The high-gradient magnetic separation experimental device according to any one of claims 1 to 4, wherein the magnetic medium (321) is any one of a rod medium, a steel plate mesh medium, a toothed plate medium and a steel wool medium, and the magnetic medium (321) is provided in the medium section (32) in an adjustable axial direction.
7. The high-gradient magnetic separation experimental device according to any one of claims 1 to 4, characterized in that the separation box (3) further comprises a feeding section (31) and a discharging section (33), wherein the feeding section (31) is communicated with the inlet of the medium section (32), and the discharging section (33) is communicated with the outlet of the medium section (32).
8. The high-gradient magnetic separation experimental device according to any one of claims 2 to 4, wherein the T-shaped magnetic yoke (212) is provided with a through hole (5) for feeding or discharging ore, and the through hole (5) penetrates through the transverse section and the vertical section of the T-shaped magnetic yoke (212).
9. The high-gradient magnetic separation experimental device as claimed in any one of claims 1 to 4, wherein the material of the medium section (32) is a non-magnetic-conductive transparent material, and the high-gradient magnetic separation experimental device further comprises a high-speed camera system for realizing visualization of the magnetic separation process.
10. The high-gradient magnetic separation experimental device as recited in claim 2, wherein the excitation coil (22) is formed by winding a red copper rectangular conduit, the magnetic yoke (21) is made of electrical pure iron, and the support frame (1) is made of non-magnetic stainless steel.
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| CN201910983373.8A CN110605179A (en) | 2019-10-16 | 2019-10-16 | High-gradient magnetic separation experimental device |
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