CN212882947U - Elutriation magnetic separator - Google Patents
Elutriation magnetic separator Download PDFInfo
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- CN212882947U CN212882947U CN202021037473.6U CN202021037473U CN212882947U CN 212882947 U CN212882947 U CN 212882947U CN 202021037473 U CN202021037473 U CN 202021037473U CN 212882947 U CN212882947 U CN 212882947U
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Abstract
The utility model provides an elutriation magnetic separator, belonging to the technical field of mineral separation, comprising a grading drum, an overflow device, a feeder, a water supply structure and an adjustable balance structure; the outer wall of the grading cylinder is provided with a magnetic structure; the overflow device is arranged on the sorting cylinder and is communicated with the sorting cylinder; the feeder is arranged above the overflow device and used for feeding materials to the grading cylinder; the water supply structure is positioned below the grading cylinder, is communicated with the grading cylinder and is used for supplying water into the grading cylinder; adjustable balanced structure locates in the selection is not a section of thick bamboo, and is located the below of feeder, the utility model provides an elutriation magnet separator changes the selection characteristic of elutriating the magnet separator through the mode of this kind of adjustable balanced structure diameter size of direct adjustment, makes it adapt to the different selected mineral, still can gain the best selection effect when the characteristic of the selected mineral changes, improves the concentrate grade, increases the rate of recovery to can reduce the bottom and wash the water yield, using water wisely.
Description
Technical Field
The utility model belongs to the technical field of magnetic mineral sorting facilities, more specifically say, relate to an elutriation magnet separator.
Background
With the continuous improvement of the requirements of metallurgical enterprises on product quality, economic benefit, equipment efficiency, energy consumption and environmental protection, the requirements on the quality of the concentrates fed into the furnace are higher and higher. Whether the high-quality concentrate can be provided for smelting enterprises at lower cost becomes the key for improving the economic benefit of the beneficiation enterprises. Since ore in a mill usually comes from a plurality of mining areas, and the properties of the selected ore, such as magnetism, embedding particle size, composition, density, etc., are different, it is difficult to obtain a predetermined separation effect when the properties of the selected ore are changed in the elutriation magnetic separator with fixed structural parameters.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an elutriation magnet separator to solve the technical problem that when giving ore deposit condition or ore nature and change that exist among the prior art, fixed knot constructs's equipment is difficult to gain the best effect of selecting separately.
In order to achieve the above object, the utility model adopts the following technical scheme: the elutriation magnetic separator comprises a grading cylinder, an overflow device, a feeder, a water supply structure and an adjustable balance structure, wherein the outer wall of the grading cylinder is provided with a magnetic structure; the overflow device is arranged on the grading cylinder, is communicated with the grading cylinder and is used for discharging tailings; the feeder is arranged above the overflow device and used for feeding the sorting cylinder; the water supply structure is positioned below the sorting cylinder, is communicated with the sorting cylinder and is used for supplying water into the sorting cylinder; the adjustable balance structure is arranged in the grading cylinder and is used for adjusting the size and the flow velocity of the flow cross section area of the ore pulp in the grading area in the grading cylinder.
As another embodiment of the present application, the adjustable balance structure is a deformed annular cavity or a mechanical adjustment structure.
As another embodiment of the present application, when the adjustable balance structure is a deformed annular cavity, the adjustable balance structure is sleeved on the cylinder of the water supply structure and is fixedly connected with the cylinder.
As another embodiment of the present application, the adjustable balance structure is disposed between the cylinder of the water supply structure and the inner wall of the sorting cylinder.
As another embodiment of the present application, the adjustable balancing structure includes:
the annular body is fixedly connected with the sorting cylinder; the annular body is of a hollow structure and is made of elastic materials;
and one end of the connecting pipe penetrates through the wall of the sorting cylinder to be communicated with the inner cavity of the annular body, and the other end of the connecting pipe is positioned outside the sorting cylinder and used for changing the quantity of media in the inner cavity of the annular body so as to enable the annular body to expand outwards or contract inwards.
As another embodiment of the present application, the annular body is disposed coaxially with the sorting cylinder.
As another embodiment of the present application, the other end of the connection pipe is provided with a regulating valve.
As another embodiment of the present application, the medium is a gas or a liquid.
As another embodiment of the application, a wear-resistant layer is arranged at a position of the adjustable balance structure opposite to the discharge hole of the feeder.
As another embodiment of the present application, the lower end of the feeder extends into the sorting cylinder and is located above the adjustable balance structure, and the upper end of the feeder is located above the overflow device.
The utility model provides an elutriation magnet separator's beneficial effect lies in: compared with the prior art, the utility model discloses elutriation magnet separator can change its size through the quantity of the medium of the adjustable balanced structure inside cavity of adjustment when the characteristic of selected mineral changes to change the characteristics of selecting of elutriation magnet separator, with the selected mineral that the adaptation characteristic has changed that the selection is got to select to do not require, produce the content of useful mineral in high-grade concentrate and furthest's the reduction tailing, improve the rate of recovery. When the selected minerals are large in gangue and poor intergrowth granularity or large in density, the sedimentation speed is high, and the minerals are easy to mix into the concentrate to reduce the concentrate grade. At the moment, the size of the adjustable balance structure is increased, the flowing cross section area of ore pulp of the grading cylinder is reduced, the speed of upward water flow in the area can be increased, the gangue and the lean intergrowth are prevented from descending, and the upward water flow can be smoothly brought into the overflow trough and overflows into tailings. When the granularity of the selected mineral is small, the sedimentation velocity is low, the mineral is suspended in a separation area, the treatment capacity of equipment is influenced, and under the action of ascending water flow, useful fine-fraction mineral particles can be brought into an overflow groove by the water flow to enter tailings, so that the recovery rate is reduced. At the moment, the size of the adjustable balance structure is adjusted to be small, the flow cross section area of ore pulp of the grading cylinder is enlarged, the grading area can be enlarged, the upward water flow speed of the area is reduced, the useful minerals can be favorably settled and enter the concentrate, and the recovery rate of the minerals is improved. Through the mode of directly adjusting the size of the flow area of the adjustable balance structure influencing the sorting area, the elutriation magnetic separator can be well suitable for sorting of various minerals with different characteristics, and the satisfactory sorting effect is achieved. The elutriation magnetic separator with the same specification is additionally provided with the adjustable balance structure, so that the elutriation magnetic separator can be suitable for different treatment capacity occasions, and is greatly convenient for users to use. The investment cost of the equipment is reduced, and the utilization rate of the equipment is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an elutriation magnetic separator according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of the annular body and the column according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1. selecting a grading cylinder; 2. a magnetic structure; 3. an overflow device; 4. a feeder; 5. a water supply structure; 51. a first water inlet pipe; 52. a second water inlet pipe; 6. an adjustable balance structure; 61. an annular body; 62. a connecting pipe; 63. Adjusting a valve; 64. a column; 65. and a wear-resistant layer.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the elutriation magnetic separator provided by the present invention will now be described. An elutriation magnetic separator comprises a grading cylinder 1, an overflow device 3, a feeder 4, a water supply structure 5 and an adjustable balance structure 6; the outer wall of the grading cylinder 1 is provided with a magnetic structure 2; the overflow device 3 is arranged on the grading cylinder 1, is communicated with the grading cylinder 1 and is used for discharging tailings; the feeder 4 is arranged above the overflow device 3 and is used for feeding the sorting cylinder 1; the water supply structure 5 is positioned at the lower part of the grading cylinder 1, is communicated with the grading cylinder 1 and is used for supplying water into the grading cylinder 1; the adjustable balance structure 6 is arranged in the grading cylinder 1 and is used for adjusting the size and the flow velocity of the flow cross section area of ore pulp in the grading cylinder 1.
Compared with the prior art, the elutriation magnetic separator provided by the utility model has the advantages that selected minerals enter the sorting cylinder 1 from the feeder 4, water is supplied from the water supply structure 5 from bottom to top, when the granularity of the selected minerals is small, the magnetic force of the magnetic structure 2 at the center of the sorting cylinder 1 is small, so that the adjustable balance structure 6 is increased, the magnetic separation area is located at the position with large magnetic force, and the magnetic useful minerals with small granularity can sink and are discharged from the lower end concentrate outlet of the sorting cylinder 1; when the granularity of the selected minerals is larger, the adjustable balance structure 6 is reduced, the magnetic separation area is enlarged, the magnetic useful minerals sink in the larger magnetic separation area and are discharged from a concentrate outlet at the lower end of the grading cylinder 1, and the weakly magnetic and non-magnetic minerals run upwards under the action of rising water to become tailings and overflow from the overflow device 3. When the granularity of the selected mineral changes, the elutriation magnetic separator can efficiently separate magnetic ores by directly adjusting the size of the adjustable balance structure 6 without specially changing the structural parameters of the elutriation magnetic separator, so that a better separation effect is achieved.
The resultant force of the magnetic force and the self gravity of the gangue with small density, non-magnetism or weak magnetism and the poor intergrowth particles is smaller than the buoyancy of the upward water flow, and the gangue with small density, non-magnetism or weak magnetism and the poor intergrowth particles move to an overflow trough under the action of the rising water and are discharged to form tailings. When the granularity of the gangue and the poor intergrowth in the selected mineral is larger or the density of the gangue and the poor intergrowth is larger, the buoyancy is smaller, so that the gangue and the poor intergrowth are prevented from sinking into the concentrate to reduce the grade of the concentrate, at the moment, the size of the adjustable balance structure is increased, the sectional area of a sorting area is reduced, the upward water flow speed of the sorting area can be increased, the buoyancy is increased, and the gangue and the poor intergrowth with larger weight can be smoothly brought into an overflow groove by the upward water flow and overflow into tailings. When the granularity of the selected mineral is small, the mineral is suspended in a separation area due to the small sedimentation velocity of the mineral, the treatment capacity of equipment is influenced, and under the action of the ascending water flow, useful fine-fraction mineral particles can be brought into an overflow groove by the water flow to enter tailings, so that the recovery rate is reduced. At the moment, the size of the adjustable balance structure 6 is adjusted to be small, the flow cross section area of ore pulp in the grading cylinder 1 is enlarged, the grading area can be enlarged, the upward water flow speed of the area is reduced, the useful minerals can be favorably settled and enter the concentrate, and the recovery rate of the minerals is improved. Through the mode of directly adjusting the size of the flow area of the adjustable balance structure 6 influencing the sorting area, the elutriation magnetic separator can be well suitable for sorting of various minerals with different characteristics, and the satisfactory sorting effect is achieved. The elutriation magnetic separator with the same specification is additionally provided with the adjustable balance structure, so that the elutriation magnetic separator can be suitable for different treatment capacity occasions, and is greatly convenient for users to use. The investment cost of the equipment is reduced, and the utilization rate of the equipment is improved.
The overflow device 3 is provided with a tailing overflow port, which is convenient for the discharge of non-magnetic minerals. The lower end of the grading cylinder 1 is of a cone structure, and the tail end of the cone is a concentrate outlet, so that magnetic concentrate can be conveniently discharged; a regulating valve 63 may be provided at the concentrate outlet. The adjustable balance structure 6 is arranged to be coaxial with the sorting cylinder 1, so that the adjustable balance structure 6 can be adjusted to uniformly change all around, and the purpose of changing the distance between the outer side surface of the adjustable balance structure 6 and the sorting cylinder 1 is achieved. The adjustable balance structure 6 can be arranged as an annular body 61 which is coaxial with the sorting cylinder 1, and the radial size of the annular body 61 is changed to change the distance between the outer wall of the annular body 61 and the inner wall of the sorting cylinder 1, so that the purpose of changing the magnetic separation area of the sorting cylinder 1 is achieved.
The magnetic structure 2 can select an excitation coil, the excitation coil surrounds the outer wall of the grading cylinder 1, magnetic force is formed in the grading cylinder 1 and acts on magnetic useful ores, the magnetic useful ores are moved downwards and then are discharged from a concentrate outlet at the lower end of the grading cylinder 1.
The lower end of the grading cylinder 1 is provided with a concentrate discharge structure, one end of the concentrate discharge structure, which is far away from the grading cylinder 1, is provided with a concentrate outlet, and a water pipe of the water supply structure 5 penetrates through the concentrate discharge structure and enters the grading cylinder 1.
Meanwhile, the volume of the adjustable balance structure 6 is increased, the flow speed between the adjustable balance structure 6 and the inner wall of the grading cylinder 1 can be increased, coarse-particle non-magnetic ores can be flushed upwards when coarse-particle ores are graded, and the coarse-particle non-magnetic ores enter the overflow device 3 under the action of water buoyancy to form tailings.
Referring to fig. 1 and 2, as a specific embodiment of the elutriation magnetic separator of the present invention, the adjustable balance structure 6 is a deformed annular cavity or a mechanical adjustment structure.
Referring to fig. 1 and 2, as a specific embodiment of the elutriation magnetic separator of the present invention, when the adjustable balance structure 6 is a deformable annular cavity, the adjustable balance structure 6 is sleeved on the column of the water supply structure 5 and is fixedly connected thereto.
Referring to fig. 1 and 2, as a specific embodiment of the elutriation magnetic separator of the present invention, the adjustable balance structure 6 includes an annular body 61 and a connecting pipe 62, the annular body 61 is fixedly connected to the grading cylinder 1; the annular body 61 is of a hollow structure and made of elastic material; one end of the connecting pipe 62 penetrates through the wall of the grading cylinder 1 to be communicated with the inner cavity of the annular body 61, the other end of the connecting pipe is positioned outside the grading cylinder 1 and is used for adding or discharging media into or from the inner cavity of the annular body 61 and enabling the annular body 61 to expand outwards or contract inwards, the connecting pipe 62 penetrates through the wall of the grading cylinder 1 from the outside of the grading cylinder 1 and is communicated with the inner cavity of the annular body 61, when a magnetic separation area needs to be changed, the other end of the connecting pipe 62 can be connected with a power source and a media storage box, the power source is started to add media into the inner cavity of the annular body 61, the outer wall of the annular body 61 expands outwards, the sectional area of the grading area is reduced, the rising water velocity of the grading area can be increased, the buoyancy force on the selected minerals is increased, and large gangue particles and poor intergrowth particles can be smoothly brought into an. Conversely, when the selected mineral has a smaller particle size, a large number of tiny useful mineral particles may be carried by the water stream into the overflow launder and thus into the tailings, due to the slow settling rate, reducing the recovery of the selected mineral. The magnetic separation area is concentrated in an area which is close to the inner wall of the grading cylinder 1 and has stronger magnetic force, and smaller magnetic useful ores are subjected to stronger magnetic force in the area, can quickly and stably move downwards and are discharged from a concentrate outlet at the lower end of the grading cylinder 1; conversely, the medium in the annular body 61 can be extracted by means of the power source. The power source can adopt a motor and a power pump, and the medium can adopt gas, water or other liquid. The sorting cylinder 1 may be provided with a mounting plate which is fixedly connected to the inner wall of the sorting cylinder 1 by a plurality of connecting rods, the lower end of the annular body 61 is fixed to the mounting plate, and the selected mineral passes through between the connecting rods.
The annular body 61 of the adjustable balance structure 6 is of an annular structure and is sleeved on the column body of the water supply structure and fixedly connected with the same, when the sectional area of the grading cylinder needs to be changed, the annular body 61 is sleeved on the column body of the water supply structure, so that the volume of the annular body 61 is relatively small, the annular body can be rapidly expanded or contracted only by filling or discharging less working media, a proper working position is reached, and the working efficiency of the elutriation magnetic separator is improved.
Please refer to fig. 1, as a specific embodiment of the elutriation magnetic separator provided by the present invention, the annular body 61 and the sorting cylinder 1 are coaxially disposed, so that the outer wall of the annular body 61 and the inner wall of the sorting cylinder 1 are in consistent distance in each direction, the magnetic field in the magnetic separation space is stronger and more uniform by adopting this way, the magnetic force and the buoyancy of the water flow received by the selected minerals in each place are consistent, and the sorting effect of the elutriation magnetic separator is improved.
Referring to fig. 1, as a specific embodiment of the elutriation magnetic separator provided by the present invention, an adjusting valve 63 is disposed at the other end of the connecting pipe 62, the adjusting valve 63 can be disposed to conveniently and simply adjust the volume and speed of the medium added into the annular body 61, and the adjusting valve 63 can be manually or automatically controlled. One end of the connection pipe 62 is connected to the lower end of the annular body 61, and the adjustment valve 63 can be opened directly when the medium in the annular body 61 is extracted.
Please refer to fig. 1 and fig. 2, as a specific embodiment of the elutriation magnetic separator provided by the present invention, the medium is gas or liquid, when gas is selected for use, the compressed gas source can be directly used to communicate with one end of the connecting pipe 62, and the connecting pipe 62 is provided with a three-way valve, when the three-way valve is connected with the gas source, the three-way valve inflates the annular body 61, the volume of the annular body 61 is increased, when the three-way valve is connected with the outside, the three-way valve deflates from the annular body 61, and the volume of the annular body 61 is reduced. When the liquid is selected, a pump or the like can be used to communicate with the connection pipe 62, and the pump pumps the liquid from the storage tank into the annular body 61, and conversely, the pump is driven to pump the liquid in the annular body 61. The air can be directly used as the gas, the water can be directly used as the liquid, and the cost is lower.
Please refer to fig. 1 and fig. 2, as a specific embodiment of the elutriation magnetic separator provided by the present invention, a position of the water supply structure 5 opposite to the discharge port of the feeder 4 is provided with a wear layer 65, after the selected minerals are fed from the feeder 4, the selected minerals flow out from the lower end of the feeder 4, the lower end outlet of the feeder 4 is located above the column body of the water supply structure, therefore, the selected minerals can directly contact with the upper end of the column body of the water supply structure, in order to ensure that the column body of the water supply structure is not damaged, the wear layer 65 is provided on the column body of the water supply structure, so that the selected minerals contact with the wear layer 65, thereby improving the service life and stability of the water supply structure.
Please refer to fig. 1, as a specific embodiment of the elutriation magnetic separator provided by the present invention, the lower end of the feeder 4 extends into the classifying cylinder 1 and is located above the adjustable balance structure 6, the upper end of the feeder 4 is located above the overflow device 3, the lower end of the feeder 4 extends into the classifying cylinder 1 and is located above the column 64 or the annular body 61, the selected minerals enter into the classifying cylinder 1 from the lower end discharge port of the feeder 4 and are scattered uniformly all around, so that the selected minerals are uniformly classified by the magnetic separation region in the classifying cylinder 1, and are not accumulated on one side, resulting in poor classifying effect.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Elutriation magnet separator, its characterized in that includes:
the outer wall of the grading cylinder is provided with a magnetic structure;
the overflow device is arranged on the sorting cylinder, is communicated with the sorting cylinder and is used for discharging tailings;
the feeder is arranged above the overflow device and used for feeding the sorting cylinder;
the water supply structure is positioned below the sorting cylinder, is communicated with the sorting cylinder and is used for supplying water into the sorting cylinder;
the adjustable balance structure is arranged in the grading cylinder and is used for adjusting the size and the flow velocity of the flow cross section area of the ore pulp in the grading area in the grading cylinder.
2. The elutriation magnetic separator as recited in claim 1, wherein said adjustable balance structure is a deformed annular cavity or a mechanical adjustment structure.
3. The elutriation magnetic separator as recited in claim 2 wherein said adjustable balance structure is a deformed annular cavity, said adjustable balance structure being disposed over and fixedly attached to said column of said water supply structure.
4. The elutriation magnetic separator as set forth in claim 2, wherein said adjustable balance structure is disposed between said column of said water supply structure and said inner wall of said classifying drum.
5. The elutriation magnetic separator recited in claim 1 wherein said adjustable equilibrium structure includes:
the annular body is fixedly connected with the sorting cylinder; the annular body is of a hollow structure and is made of elastic materials;
and one end of the connecting pipe penetrates through the wall of the sorting cylinder to be communicated with the inner cavity of the annular body, and the other end of the connecting pipe is positioned outside the sorting cylinder and used for changing the quantity of media in the inner cavity of the annular body so as to enable the annular body to expand outwards or contract inwards.
6. The elutriation magnetic separator set forth in claim 5 wherein said annular body is disposed coaxially with said classifying drum.
7. The elutriation magnetic separator as recited in claim 5, wherein said connecting pipe is provided at the other end thereof with a regulating valve.
8. The elutriation magnetic separator as recited in claim 5 wherein said media is a gas or a liquid.
9. The elutriation magnetic separator as recited in claim 1, wherein said adjustable balance structure is provided with a wear resistant layer opposite to the outlet of said feeder.
10. The elutriation magnetic separator as set forth in claim 1 wherein said feeder extends into said separation drum at a lower end thereof above said adjustable equalization structure and at an upper end thereof above said overflow.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019221504478 | 2019-12-04 | ||
| CN201922150447 | 2019-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212882947U true CN212882947U (en) | 2021-04-06 |
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ID=75276095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021037473.6U Active CN212882947U (en) | 2019-12-04 | 2020-06-08 | Elutriation magnetic separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212882947U (en) |
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2020
- 2020-06-08 CN CN202021037473.6U patent/CN212882947U/en active Active
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