CN113477395A - Electromagnetic classificator for partition separation - Google Patents
Electromagnetic classificator for partition separation Download PDFInfo
- Publication number
- CN113477395A CN113477395A CN202110751746.6A CN202110751746A CN113477395A CN 113477395 A CN113477395 A CN 113477395A CN 202110751746 A CN202110751746 A CN 202110751746A CN 113477395 A CN113477395 A CN 113477395A
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- Prior art keywords
- overflow
- separation
- zoned
- pipe
- conical
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- 238000000926 separation method Methods 0.000 title claims abstract description 72
- 238000005192 partition Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000007921 spray Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 description 21
- 229910052500 inorganic mineral Inorganic materials 0.000 description 20
- 239000011707 mineral Substances 0.000 description 20
- 239000000126 substance Substances 0.000 description 12
- 239000000696 magnetic material Substances 0.000 description 8
- 239000006148 magnetic separator Substances 0.000 description 6
- 238000012216 screening Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention provides an electromagnetic classificator for partition separation, comprising: the inner wall of the separation column is sequentially divided into a first separation area, a second separation area and a third separation area from top to bottom; and the multilayer water feeder is arranged inside the sorting column. The invention aims to provide an electromagnetic separator for partition separation, which well solves the problem of poor separation effect caused by the adoption of a central ore feeding and bottom water feeding mode in the electromagnetic separator in the prior art.
Description
Technical Field
The invention relates to the technical field of iron ore concentration equipment, in particular to an electromagnetic concentrator for partition separation.
Background
The magnetic separator is a main separation device in the magnetic mineral separation process, is suitable for substances with magnetic difference, and achieves the effects of separating and collecting magnetic minerals and nonmagnetic materials.
At present, an electromagnetic magnetic separator is usually adopted in the concentration operation, the electromagnetic magnetic separator is more favorable for the concentration operation of magnetic minerals by changing the current intensity to adjust the magnetic field intensity and the distribution form, but the existing electromagnetic magnetic separator adopts a central ore feeding and bottom water feeding mode to carry out the separation, the ore feeding mode causes that an upper magnetic field area does not participate in the separation, and only plays a role of preventing the magnetic minerals from entering tailings, and simultaneously, the bottom water feeding passes through all the magnetic field areas, causes that partial non-magnetic materials repeatedly enter the magnetic minerals through the water feeding, and influences the quality of the final magnetic minerals.
Disclosure of Invention
The invention aims to provide an electromagnetic separator for zone separation, and aims to solve the problem of poor separation effect caused by the adoption of a central ore feeding and bottom water feeding mode in the electromagnetic separator in the prior art.
The invention provides an electromagnetic classificator for partition separation, comprising: the inner wall of the separation column is sequentially divided into a first separation area, a second separation area and a third separation area from top to bottom; and the multilayer water feeder is arranged inside the sorting column.
Further, the multilayer water feeder comprises a water feeding pipe, a water conveying pipe and an annular water dividing pipe; the water supply pipes, the water delivery pipes and the annular water distribution pipes are in one-to-one correspondence and are sequentially communicated.
Further, the multilayer water feeder also comprises a spray head; the sprinkler heads are uniformly arranged on the outer side wall of the annular water distribution pipe and are communicated with the annular water distribution pipe; the water delivery pipe is communicated with the inner side wall of the annular water distribution pipe.
Further, a first magnet is arranged in the first separation area, a second magnet is arranged in the second separation area, and a third magnet is arranged in the third separation area.
Further, the electromagnetic concentrator also comprises a feeding overflow device; the feeding overflow device comprises a conical ore separator and an overflow cylinder; the conical ore separator is arranged above the overflow cylinder; the overflow cylinder is positioned in the sorting column, and the diameter of the overflow cylinder is smaller than that of the sorting column; the outer wall of the overflow cylinder and the inner wall of the sorting column form a feeding channel, and the inner wall of the overflow cylinder forms an overflow channel.
Furthermore, the feeding overflow device also comprises an overflow hole, an overflow pipe and an overflow groove; the overflow holes are uniformly formed in the outer wall of the overflow cylinder, and the overflow holes and the overflow pipes are in one-to-one correspondence and are communicated; the overflow groove is arranged on the outer wall of the overflow cylinder in a surrounding manner and is communicated with the overflow pipe.
Furthermore, the conical ore separator is also provided with a screening grid.
Further, the electromagnetic concentrator also comprises a conical collecting device; the conical collecting device is positioned below the separation column and communicated with the separation column.
Further, the cone-shaped collecting device comprises a cone; and a bottom valve is arranged at an outlet at the bottom of the conical cylinder.
Furthermore, the side wall of the conical cylinder is communicated with a dredging pipe.
According to the technical scheme, on one hand, the first separation area, the second separation area and the third separation area are sequentially arranged on the inner wall of the separation column from top to bottom, the whole separation column is provided with a magnetic field area, and falling materials can participate in separation from the top of the separation column; on the other hand, a plurality of layers of water feeders are arranged in the sorting column, part of non-magnetic materials are recovered in an overflowing manner by the upper layer of water feeders, and the non-recovered non-magnetic materials are sequentially recovered by the lower layer of water feeders, so that the influence on the sorting effect caused by repeated mixing of the non-magnetic materials and magnetic minerals is avoided; the problem of poor separation effect caused by the adoption of a central ore feeding and bottom water feeding mode for separation of the electromagnetic magnetic separator in the prior art is well solved.
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 described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front cross-sectional view of an electromagnetic concentrator provided in accordance with an embodiment of the present invention;
FIG. 2 is a front cross-sectional view of a sorting column according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a multi-layer water feeder according to an embodiment of the present invention;
FIG. 4 is a cross-sectional elevation view of a feed overflow provided in accordance with an embodiment of the present invention;
fig. 5 is a front cross-sectional view of a tapered collection device provided in accordance with an embodiment of the present invention.
Description of reference numerals:
1 is a sorting column, 11 is a first magnet, 12 is a second magnet, and 13 is a third magnet;
2, a multilayer water feeder, 21, 22, 23 and 24 are water pipes, annular water distribution pipes and spray heads;
3, a feeding overflow device, 31, a conical ore separator, 32, an overflow cylinder, 33, an overflow hole, 34, 35, an overflow groove and 36, wherein the conical ore separator is used as the feeding overflow device;
4 is a feeding channel; 5 is an overflow channel;
the device 6 is a conical collecting device, 61 is a conical cylinder, 62 is a bottom valve, and 63 is a dredging pipe.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Specifically, referring to fig. 1, the invention provides an electromagnetic classificator for zone separation, which comprises a separation column 1, wherein the inner wall of the separation column 1 is sequentially divided into a first separation zone, a second separation zone and a third separation zone from top to bottom, the whole separation column 1 is provided with a magnetic field area, and falling materials can participate in separation from the top of the separation column 1, so that the separation effect is improved.
Referring to fig. 2, the first separation area, the second separation area and the third separation area are respectively provided with a first magnet 11, a second magnet 12 and a third magnet 13, the magnetic mineral is adsorbed on the magnetic wall by the magnetism generated by the magnets, and the magnetic mineral adsorbed on the magnetic wall continues to move downwards along the magnetic wall under the action of the magnetic field due to the different magnetism of the first magnet 11, the second magnet 12 and the third magnet 13, so as to achieve the effect of collecting the magnetic mineral.
It should be noted that the magnetism of the first magnet 11, the second magnet 12 and the third magnet 13 can be changed, and the size relationship of the first magnet 11, the second magnet 12 and the third magnet 13 is also changed, so that different magnetic fields can be generated by changing the size relationship of the first magnet 11, the second magnet 12 and the third magnet 13, and the sorting column 1 can sort different substances.
As shown in fig. 3, specifically, the electromagnetic concentrator further includes a multi-layer water feeder 2, and the multi-layer water feeder 2 is installed inside the sorting column 1, since the sorting column 1 can only magnetically attract magnetic substances and guide the magnetic substances to move downward for collection, but the non-magnetic substances cannot be attracted by the sorting column 1 and also move downward; the multilayer water feeder 2 enables non-magnetic substances to overflow upwards and collect through an upward flow field provided by water feeding, and further ensures the quality of the magnetic substances.
Because the water feeder is installed in the bottom of sorting column 1, when non-magnetic substance moves down, non-magnetic substance can be brought up by the flow field and move up near the bottom of sorting column 1, because non-magnetic substance is more in quantity, and the route of travel is longer, non-magnetic substance can be mingled with the downstream magnetic substance and move down, and then lead to non-magnetic material to get into magnetic mineral and mix with it repeatedly through the feedwater repeatedly, has influenced final magnetic mineral's quality.
The problem can be solved by arranging the water feeders into multiple layers, the water feeders 2 are arranged in the sorting column 1, part of nonmagnetic materials are recovered by overflowing through the upper-layer water feeder, and the unrecovered nonmagnetic materials are sequentially recovered through the lower-layer water feeder, so that the influence on the sorting effect caused by repeated mixing of the nonmagnetic materials and magnetic minerals is avoided; in addition, the multilayer water feeder 2 is arranged, so that the control of the height, angle and force of flushing is realized, and a better overflow effect is achieved.
The multilayer water feeder 2 comprises a water feeding pipe 21, a water delivery pipe 22, an annular water diversion pipe 23 and a spraying head 24; the water supply pipes 21, the water delivery pipes 22 and the annular water distribution pipes 23 are in one-to-one correspondence in number and are sequentially communicated, and the sprinkler heads 24 are uniformly arranged on the outer side wall of the annular water distribution pipe 23 and are communicated with the annular water distribution pipe 23; the water delivery pipe 22 is communicated with the inner side wall of the annular water distribution pipe 23.
The feed water passes through the feed pipe 21, the water delivery pipe 22 and the annular water diversion pipe 23 in sequence, and is finally sprayed upwards or obliquely upwards from the spraying head 24, and the sprayed water flow drives the nonmagnetic material to move upwards, so that the collection work is finally completed. The water flow sprayed by the spray heads 24 can be adjusted, and the specific water flow is determined according to the nonmagnetic materials.
Referring to fig. 4, specifically, the feeding overflow device 3 is used for feeding materials into the electromagnetic concentrator and overflowing and collecting nonmagnetic materials, and one part of the feeding overflow device 3 is positioned above the sorting column 1, and the other part is positioned inside the sorting column 1; the feeding overflow device 3 comprises a conical ore separator 31, and uniform feeding is realized through the conical ore separator 31.
Further, the conical ore separator 31 is further provided with a screening grid 36, and the screening grid 36 is used for screening nonmagnetic materials with large volumes.
The feeding overflow device 3 further comprises an overflow cylinder 32, an overflow hole 33, an overflow pipe 34 and an overflow groove 35, wherein the conical ore separator 31 is arranged above the overflow cylinder 32; the overflow cylinder 32 is positioned in the interior of the sorting column 1, and the diameter of the overflow cylinder 32 is smaller than that of the sorting column 1; therefore, the outer wall of the overflow cylinder 32 and the inner wall of the sorting column 1 form a feeding channel 4, the inner wall of the overflow cylinder forms an overflow channel 5, materials fall into the sorting column 1 from the feeding channel 4 for sorting, and sorted nonmagnetic materials are collected from the overflow channel 5 in an overflowing way; the feeding channel 4 and the overflow channel 5 are not interfered with each other, so that the normal operation of the electromagnetic fine separator is ensured.
The overflow holes 33 are uniformly formed in the outer wall of the overflow cylinder 32, and the overflow holes 33 and the overflow pipes 34 are in one-to-one correspondence and communicated; the overflow groove 35 is arranged around the outer wall of the overflow cylinder 32 and communicated with the overflow pipe 34; the overflowing nonmagnetic material passes through the overflow cylinder 32, the overflow hole 33 and the overflow pipe 34 in sequence, and finally enters the overflow groove 35 to be collected.
Referring to fig. 5, specifically, a cone-shaped collecting device 6 is installed below the sorting column 1 and is communicated with the sorting column 1, and the sorted magnetic minerals are collected by the cone-shaped collecting device 6.
The cone-shaped collecting device 6 comprises a cone 61; a bottom valve 62 is installed at the bottom outlet of the conical cylinder 61, and the opening and closing of the outlet are controlled through the bottom valve 62; the side wall of the cone 61 is communicated with a dredging pipe 63 to prevent the magnetic mineral from silting up in the actual operation process.
The sorting principle of the electromagnetic classificator is as follows: the material uniformly enters the separation column 1 through the feeding channel through the conical ore separator 31, the magnetic mineral is magnetically attracted on the inner wall of the separation column 1 by the first magnet 11 of the first separation area, the first magnet 11, the second magnet 12 and the third magnet 13 in the separation column generate downward alternating magnetic fields in sequence, the magnetic mineral enters the cone bottom in an agglomeration-dispersion state under the action of the alternating magnetic fields, and the magnetic mineral is discharged through the bottom valve 62 to form concentrate; the nonmagnetic material continuously falls along the feeding channel 4, part of the nonmagnetic material enters the overflow cylinder 32 along with the ascending water flow at the bottom of the overflow cylinder 32, enters the overflow pipe 34 through the overflow hole 33 on the overflow cylinder 32, is finally collected in the overflow groove 35, part of the nonmagnetic material is mixed with the magnetic minerals and is brought into the second separation area and the third separation area, in order to remove the nonmagnetic material in the second separation area and the third separation area in the separation column, the multilayer water feeder 2 supplies water in layers, the cleaning water passes through the water supply pipe 21, enters the water conveying pipe 22 and the annular water dividing pipe 23, and finally the nonmagnetic material is conveyed to the overflow cylinder 32 through the water flow generated by the spraying pipe 24 and is finally collected in the overflow groove 35.
In summary, according to the technical scheme of the invention, on one hand, the first separation area, the second separation area and the third separation area are sequentially arranged on the inner wall of the separation column 1 from top to bottom, the whole separation column is provided with the magnetic field area, and falling materials can participate in separation from the top of the separation column; on the other hand, the multilayer water feeder 2 is arranged in the sorting column 1, part of non-magnetic materials are recovered in an overflowing manner by the upper layer water feeder, and the non-recovered non-magnetic materials are sequentially recovered by the lower layer water feeder, so that the influence on the sorting effect caused by repeated mixing of the non-magnetic materials and magnetic minerals is avoided; the problem of poor separation effect caused by the adoption of a central ore feeding and bottom water feeding mode for separation of the electromagnetic magnetic separator in the prior art is well solved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A zoned electromagnetic concentrator, comprising:
the inner wall of the separation column is sequentially divided into a first separation area, a second separation area and a third separation area from top to bottom;
and the multilayer water feeder is arranged inside the sorting column.
2. The zoned-sorting electromagnetic concentrator of claim 1, wherein the multi-layer water feeder comprises a water feed pipe, a water delivery pipe, and an annular water diversion pipe;
the water supply pipes, the water delivery pipes and the annular water distribution pipes are in one-to-one correspondence and are sequentially communicated.
3. The zoned electromagnetic concentrator of claim 2, wherein the multi-layer water feeder further comprises a spray head;
the sprinkler heads are uniformly arranged on the outer side wall of the annular water distribution pipe and are communicated with the annular water distribution pipe;
the water delivery pipe is communicated with the inner side wall of the annular water distribution pipe.
4. The zoned electromagnetic concentrator of claim 1, wherein the first sorting zone has a first magnet disposed therein, the second sorting zone has a second magnet disposed therein, and the third sorting zone has a third magnet disposed therein.
5. The zoned electromagnetic concentrator of claim 1, further comprising a feed overflow;
the feeding overflow device comprises a conical ore separator and an overflow cylinder;
the conical ore separator is arranged above the overflow cylinder;
the overflow cylinder is positioned in the sorting column, and the diameter of the overflow cylinder is smaller than that of the sorting column;
the outer wall of the overflow cylinder and the inner wall of the sorting column form a feeding channel, and the inner wall of the overflow cylinder forms an overflow channel.
6. The zoned electromagnetic concentrator of claim 5, wherein the feed overflow further comprises an overflow aperture, an overflow tube, and an overflow trough;
the overflow holes are uniformly formed in the outer wall of the overflow cylinder, and the overflow holes and the overflow pipes are in one-to-one correspondence and are communicated;
the overflow groove is arranged on the outer wall of the overflow cylinder in a surrounding manner and is communicated with the overflow pipe.
7. The zoned electromagnetic concentrator of claim 5, wherein the conical classifier is further provided with a screen grid.
8. The zoned electromagnetic concentrator of claim 1, further comprising a conical collection device;
the conical collecting device is positioned below the separation column and communicated with the separation column.
9. The zoned electromagnetic concentrator of claim 8, wherein the conical collection device comprises a conical drum;
and a bottom valve is arranged at an outlet at the bottom of the conical cylinder.
10. The zoned electromagnetic concentrator of claim 9, wherein the side wall of the cone communicates with a dredging pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110751746.6A CN113477395A (en) | 2021-07-02 | 2021-07-02 | Electromagnetic classificator for partition separation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110751746.6A CN113477395A (en) | 2021-07-02 | 2021-07-02 | Electromagnetic classificator for partition separation |
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| CN113477395A true CN113477395A (en) | 2021-10-08 |
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| CN202110751746.6A Pending CN113477395A (en) | 2021-07-02 | 2021-07-02 | Electromagnetic classificator for partition separation |
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