CN219723219U - Magnetic separation equipment for fine fraction weakly magnetic minerals - Google Patents
Magnetic separation equipment for fine fraction weakly magnetic minerals Download PDFInfo
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- CN219723219U CN219723219U CN202321092051.2U CN202321092051U CN219723219U CN 219723219 U CN219723219 U CN 219723219U CN 202321092051 U CN202321092051 U CN 202321092051U CN 219723219 U CN219723219 U CN 219723219U
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- magnetic
- rotary drum
- magnetic separation
- fine fraction
- discharge port
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 44
- 239000011707 mineral Substances 0.000 title claims abstract description 44
- 238000007885 magnetic separation Methods 0.000 title claims abstract description 35
- 230000006698 induction Effects 0.000 claims abstract description 27
- 239000000696 magnetic material Substances 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 230000000903 blocking effect Effects 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 239000006148 magnetic separator Substances 0.000 abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 13
- 238000007599 discharging Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses magnetic separation equipment for fine fraction weakly magnetic minerals, which comprises a feeding system and a magnetic separation system, wherein the magnetic separation system is rotationally arranged at the outer side of the feeding system, the magnetic separation system comprises a rotary drum and a magnetic field generating device arranged at the outer side of the rotary drum, induction mediums are uniformly distributed in the circumferential direction inside the rotary drum, a magnetic material collecting system is arranged on the feeding system, and the magnetic material collecting system is positioned inside the rotary drum. Compared with the traditional structure, the scheme can realize energy saving and consumption reduction, the induction medium is simple in structure and convenient to maintain, each group of induction medium can be detached and replaced independently, the external magnetic field generating device can generate higher field intensity through the extrusion magnetic steel structure to induce the magnetic field intensity on the medium to be about 2.5T higher, and the high magnetic field intensity is not achieved by the normal high-gradient magnetic separator. The external extrusion magnetic system structure can maximize the magnetic field of the permanent magnet, generate a higher induction magnetic field, does not need to provide more energy loss, and the higher magnetic field means that the enrichment rate of the magnetic iron in lean ores can be maximized.
Description
Technical Field
The utility model relates to the technical field of weak magnetic mineral magnetic separation equipment, in particular to fine fraction weak magnetic mineral magnetic separation equipment.
Background
The magnetic separation process is generally represented by the interaction of magnetic force and gravity, and the magnetic force suffered by the magnetic mineral particles in the magnetic field is far greater than the gravity of the magnetic mineral particles, so that the magnetic mineral particles are attracted to the surface of the drum of the magnetic separator from ore pulp under the action of magnetic force, and the non-magnetic mineral particles are settled under the action of gravity, thereby completing the separation process.
The existing permanent magnet magnetic separator can only separate strong magnetic substances such as Fe3O4, mechanical iron and the like in the field of weak magnetic minerals, and the magnetic induction intensity and the magnetic field gradient of the traditional magnetic separator are not suitable for the high requirements in the field, so that the traditional magnetic separator has limited effect on the enrichment of the weak magnetic minerals, the weak magnetic substance separation effect is poor, a high-gradient magnetic separator device is needed to be added in the process flow of the enrichment of the weak magnetic minerals, the existing high-gradient magnetic separator is divided into electromagnetic and permanent magnetic high-magnetic devices, the magnetic field of the electromagnetic high-magnetic device needs to be maintained by current, and no current magnetic field can be instantaneously small, so that the device needs a large amount of energy consumption when working, and a coil can emit a large amount of heat when working for a long time, so that the energy consumption of the device is greatly increased, and the separation cost is increased. The barrel skin needed by the existing permanent magnet high magnetic field equipment is quite close to the magnetic field, a certain amount of abrasion exists on the barrel skin during sorting, the service life is greatly reduced, and the improvement of the open magnetic system magnetic field is limited to only 1.5 t.
For fine grade mineral particles, a large transition in stress conditions occurs during sorting. For the magnetic minerals, as the particle size of the mineral particles is reduced, the difference between buoyancy and magnetic force is gradually reduced, so that the adsorption of the minerals is more and more difficult, when the difference is small to a certain extent, if the magnetic mineral particles are in a suspended state in ore pulp, the magnetic mineral particles move towards the direction close to the drum of the magnetic separator under the action of a disturbance flow field and are difficult to settle, the movement direction of the fine fraction non-magnetic mineral is consistent with the movement direction of the magnetic mineral, and the fine fraction non-magnetic mineral particles are wrapped on the drum surface of the magnetic separator in the process of forming magnetic agglomeration by the movement of the magnetic mineral particles towards the drum of the magnetic separator, and the fine fraction non-magnetic mineral particles are difficult to settle, so that the non-magnetic mineral particles removed in the process of overturning the magnetic agglomeration along the drum surface are difficult to remove again by the magnetic agglomeration, so that the quality of concentrate is reduced, and the recovery rate of the weak magnetic mineral is reduced.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides the magnetic separation equipment for fine fraction weakly magnetic minerals, compared with the traditional structure, the scheme can realize energy conservation and consumption reduction, the induction medium has a simple structure and convenient maintenance, each group can be independently detached and replaced, the external magnetic field generating device can generate higher field intensity which is about 2.5T higher than that of the induction medium (about 2 times of the field intensity) through extruding the magnetic steel structure, and the high field intensity is not achieved by a normal high-gradient magnetic separator. The structure of the external extrusion magnetic system can maximize the magnetic field of the permanent magnet, generate a higher induction magnetic field, does not need to provide more energy loss, and can maximize the enrichment rate of the magnetic iron in lean ores.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the magnetic separation equipment for the fine fraction weakly magnetic minerals comprises a feeding system and a magnetic separation system, wherein the magnetic separation system is rotationally arranged outside the feeding system, the magnetic separation system comprises a rotary drum and a magnetic field generating device arranged outside the rotary drum, induction media are uniformly distributed in the circumferential direction inside the rotary drum, a magnetic material collecting system is arranged on the feeding system, and the magnetic material collecting system is located inside the rotary drum.
The feeding system comprises a feeding pipe, a first discharging hole, a feeding hole and a second discharging hole are distributed on the feeding pipe, the first discharging hole, the feeding hole and the second discharging hole are located on the inner side of the rotary drum, the first discharging hole and the feeding hole are separated through a baffle, and the feeding hole is communicated with an outlet of the magnetic material collecting system.
The feeding pipe is characterized in that a flow blocking plate is arranged on one side, far away from the feeding direction, of the discharge hole of the feeding pipe, and a flow blocking part is arranged at the bottom of the flow blocking plate.
The magnetic field generating device comprises a mounting seat, wherein a plurality of extrusion magnetic steel structures are arranged on the mounting seat, and the extrusion magnetic steel structures are N poles and S poles which are distributed in a crossed mode through a plurality of extrusion magnetic steel structures.
The improvement is made on the basis of the scheme, the top of the extrusion magnetic steel structure is higher than the top of the magnetic material collecting system and lower than the height of the rotary drum, and the bottom is higher than the top of the flow blocking part.
The magnetic material collection system includes a collection hopper.
The magnetic separation equipment further comprises a flushing system, wherein the flushing system comprises a mineral unloading pipe, and a plurality of small holes are formed in the mineral unloading pipe and used for flushing magnetic materials on the induction medium against the rotating direction of the rotary drum to separate from the induction medium.
The magnetic separation system further comprises a power source and a gear set, wherein the power source drives the rotary drum to rotate relative to the feeding system through the gear set.
Compared with the prior art, the utility model has the following beneficial effects:
compared with the traditional structure, the scheme can realize energy saving and consumption reduction, the induction medium is simple in structure and convenient to maintain, each group of induction medium can be detached and replaced independently, the external magnetic field generating device can generate higher field intensity through the extrusion magnetic steel structure to induce the magnetic field intensity on the medium to be about 2.5T higher (about 2 times of the field intensity), and the high magnetic field intensity is not achieved by a normal high-gradient magnetic separator. The structure of the external extrusion magnetic system can maximize the magnetic field of the permanent magnet, generate a higher induction magnetic field, does not need to provide more energy loss, and can maximize the enrichment rate of the magnetic iron in lean ores.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an axial cross-sectional view of the feed tube and drum interior construction of the present utility model;
FIG. 3 is a radial cross-sectional view of the feed tube and drum interior construction of the present utility model;
fig. 4 is a top view of the overall structure of the present utility model.
In the figure: 1. a feed pipe; 2. a power source; 3. a gear set; 4. a rotating drum; 5. an induction medium; 6. a magnetic material collection system; 7. a feed inlet; 8. a first discharging hole; 9. a second discharging port; 10. a baffle; 11. a spoiler; 12. a mounting base; 13. extruding the magnetic steel structure; 14. and (5) an ore discharging pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Embodiment 1, as shown in fig. 1 to 4, the magnetic separation equipment for fine fraction weakly magnetic minerals comprises a feeding system and a magnetic separation system, wherein the feeding system comprises a feeding pipe 1, a first discharge port 8, a second discharge port 7 and a second discharge port 9 which are all positioned on the inner side of a rotary drum 4 are arranged on the feeding pipe 1, the first discharge port 8 and the second discharge port 7 are separated by a baffle 10, a baffle 11 is arranged on one side, far away from the feeding direction, of the first discharge port 8 of the feeding pipe 1, and a baffle part is arranged at the bottom of the baffle 11. The flow blocking plate 11 evenly beaches the incoming mineral aggregate on the inner wall of the drum through the flow blocking part, and the thickness can be controlled according to the interval between the flow blocking part and the inner wall, so that the mineral aggregate can axially move by depending on the inner wall surface of the drum 4.
The magnetic separation system is rotationally arranged outside the feeding system, the magnetic separation system comprises a rotary drum 4 and a magnetic field generating device arranged outside the rotary drum 4, the magnetic field generating device comprises a mounting seat 12, a plurality of extrusion magnetic steel structures 13 are mounted on the mounting seat 12 through bolts, the extrusion magnetic steel structures 13 are N poles and S poles which are distributed in a crossed mode by a plurality of, and the N poles and the S poles refer to polarities on one side of the surface of the rotary drum 4. The top of the pressing magnet steel structure 13 is higher than the top of the magnetic material collecting system 6 and lower than the height of the rotary drum 4, and the bottom is higher than the top of the choke. As the drum 4 rotates, the sensing medium 5 with the magnetic material attached to it can be separated from the top of the extrusion magnetic steel structure 13, so that the magnetic mineral loses magnetism and falls into the collecting hopper.
The magnetic separation system also comprises a power source 2 and a gear set 3, wherein the power source 2 drives the rotary drum 4 to rotate relative to the feeding system through the gear set 3. The power source 2 is a combination of a motor and a speed reducer, and the power source 2 drives the rotary drum 4 to rotate through the gear set 3 and the feeding pipe 1 is not moved.
The inside circumference of rotary drum 4 has evenly distributed inductive medium 5, and inductive medium 5 generally selects the iron rod preparation to use, installs magnetic material collecting system 6 on the feed system, and magnetic material collecting system 6 is located inside rotary drum 4, and magnetic material collecting system 6 is for collecting the fill, and feed inlet 7 and the export intercommunication of magnetic material collecting system 6.
The power source 2 drives the gear set 3 to rotate the rotary drum 4, ore slurry enters the rotary drum from the left side port of the feeding pipe 1 through the first discharge port, and then flows to the other side along the axial direction on the rotating rotary drum under the action of the flow blocking plate to sort magnetic ore materials. Under the effect of extrusion magnet steel structure 13 that lays in the outside for be equipped with magnetism on the induction medium 5 and possess stronger field intensity, because the magnetism cross arrangement of extrusion magnet steel structure 13, to the material along interior homowall in-process that rises, constantly overturn and advance, in addition induction medium 5 has the effect of gathering magnetic line of force under the effect of external magnetism, this forms high magnetic field gradient between induction medium 5 and the magnet steel, the in-process of reversing gathers and is broken up, weak magnetism material can adhere to on the induction medium 5 along the direction of magnetic field gradient, after passing through the top of extrusion magnet steel structure 13, induction medium 5 can lose magnetism, the magnetic material that adsorbs on it can fall into the collecting hopper voluntarily, discharge through feed inlet 7 and discharge gate two 9, the mineral aggregate after the magnetic separation can be discharged by rotary drum 4's right side.
Example 2, the following modifications were made on the basis of example 1: as shown in fig. 2 and 3, the magnetic separation device further comprises a flushing system, wherein the flushing system comprises a mineral discharge pipe 14, and a plurality of small holes are formed in the mineral discharge pipe 14 for flushing the magnetic materials on the induction medium 5 against the rotation direction of the rotary drum 4 to separate from the induction medium 5. In actual use, as some magnetic materials are adhered to the induction medium 5 or the inner wall of the rotary drum 4, water with the pressure of 0.4MPa is externally connected with the ore discharging pipe 5, and the magnetic materials are separated from the induction medium 5 by the rotation direction of the small Kong Yingzhao rotary drum 4 on the ore discharging pipe and enter the collecting hopper, and finally discharged from the second discharge port 9.
The above description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto. The substitutions may be partial structures, devices, or method steps, or may be a complete solution. The technical proposal and the utility model concept are equivalent to or changed in accordance with the utility model, and the utility model is covered in the protection scope of the utility model.
Claims (8)
1. The utility model provides a magnetic separation equipment of fine fraction weak magnetic mineral, includes feed system and magnetic separation system, its characterized in that, the magnetic separation system rotates to lay in the feed system outside, and the magnetic separation system includes rotary drum (4) and lays in the magnetic field generating device in the rotary drum (4) outside, and induction medium (5) have evenly been laid to rotary drum (4) inside circumference, installs magnetic material collecting system (6) on the feed system, and magnetic material collecting system (6) are located rotary drum (4) inside.
2. The magnetic separation device for fine fraction weakly magnetic minerals according to claim 1, characterized in that the feeding system comprises a feeding pipe (1), a first discharge port (8), a second discharge port (7) and a second discharge port (9) are arranged on the feeding pipe (1), the first discharge port (8) and the second discharge port (7) are all located on the inner side of the rotary drum (4), the first discharge port (8) and the second discharge port (7) are separated through a baffle (10), and the second discharge port (7) is communicated with an outlet of the magnetic material collecting system (6).
3. The magnetic separation device for fine fraction weakly magnetic minerals according to claim 2, wherein a flow blocking plate (11) is installed on one side of a first discharge port (8) of the feeding pipe (1) far away from the feeding direction, and a flow blocking part is arranged at the bottom of the flow blocking plate (11).
4. A magnetic separation device for fine fraction weakly magnetic minerals according to claim 3, characterized in that the magnetic field generating means comprises a mounting base (12) and a plurality of extrusion magnetic steel structures (13) are arranged on the mounting base (12), the extrusion magnetic steel structures (13) are formed by a plurality of N poles and S poles which are distributed in a crossed manner.
5. The magnetic separation device for fine fraction weakly magnetic minerals according to claim 4, characterized in that the top of the extruded magnetic steel structure (13) is higher than the top of the magnetic material collection system (6) and lower than the height of the drum (4), the bottom height being higher than the top height of the flow blocking part.
6. Magnetic separation apparatus for fine fraction weakly magnetic minerals according to claim 1, characterized in that the magnetic material collection system (6) comprises a collection hopper.
7. The magnetic separation device for fine fraction weakly magnetic minerals according to claim 1, further comprising a flushing system comprising a discharge tube (14) and wherein the discharge tube (14) is provided with a number of small holes for flushing magnetic material on the induction medium (5) against the direction of rotation of the drum (4) away from the induction medium (5).
8. The magnetic separation device for fine fraction weakly magnetic minerals according to claim 1, wherein the magnetic separation system further comprises a power source (2) and a gear set (3), and the power source (2) drives the rotary drum (4) to rotate relative to the feeding system through the gear set (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321092051.2U CN219723219U (en) | 2023-05-09 | 2023-05-09 | Magnetic separation equipment for fine fraction weakly magnetic minerals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321092051.2U CN219723219U (en) | 2023-05-09 | 2023-05-09 | Magnetic separation equipment for fine fraction weakly magnetic minerals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219723219U true CN219723219U (en) | 2023-09-22 |
Family
ID=88057424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321092051.2U Active CN219723219U (en) | 2023-05-09 | 2023-05-09 | Magnetic separation equipment for fine fraction weakly magnetic minerals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219723219U (en) |
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2023
- 2023-05-09 CN CN202321092051.2U patent/CN219723219U/en active Active
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