CN211937379U - Composite magnetic system for flat-ring high-gradient magnetic separator - Google Patents
Composite magnetic system for flat-ring high-gradient magnetic separator Download PDFInfo
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- CN211937379U CN211937379U CN202020152366.1U CN202020152366U CN211937379U CN 211937379 U CN211937379 U CN 211937379U CN 202020152366 U CN202020152366 U CN 202020152366U CN 211937379 U CN211937379 U CN 211937379U
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Abstract
The utility model relates to a flat ring high gradient magnetic separation equipment technical field especially relates to a flat ring high gradient is compound magnetism system for magnet separator. Comprises a plurality of permanent magnetic poles and electromagnetic magnetic poles which are distributed in the circumferential direction; the number of the permanent magnetic poles and the number of the electromagnetic magnetic poles are even, the permanent magnetic poles and the electromagnetic magnetic poles are in the same circumferential positions and are opposite one to one, the polarities of the permanent magnetic poles and the electromagnetic magnetic poles which are opposite one to one are the same, the polarities of two adjacent permanent magnetic poles are opposite, and the polarities of two adjacent electromagnetic magnetic poles are opposite; the permanent magnetic pole is externally provided with a cylinder body which can rotate around the axis of the permanent magnetic pole, and the magnetism gathering medium is fixed in the circumferential direction of the cylinder body and rotates along with the cylinder body. The utility model discloses combine together permanent magnetism magnetic system and electromagnetism magnetic system, both make full use of permanent magnetism magnetic system energy consumption low, flat ring high gradient magnet separator unit throughput advantage such as big, overcome again that the background magnetic induction intensity that permanent magnetism magnetic system produced is low, difficult shortcoming such as adjustment, can effectively reduce the high problem of high gradient magnetic separation technique energy consumption.
Description
Technical Field
The utility model relates to a flat ring high gradient magnetic separation equipment technical field especially relates to a flat ring high gradient is compound magnetism system for magnet separator.
Background
The High Gradient Magnetic Separation (HGMS) technology is one of the main methods for sorting micro-fine and weak magnetic materials. With the needs of production development and the progress of science and technology, various high-gradient magnetic separation devices are researched and developed at home and abroad, and mainly comprise a flat-ring type high-gradient magnetic separator and a vertical-ring type high-gradient magnetic separator.
The flat ring type high gradient magnetic separator has the advantages of simple structure and large unit ring body area processing capacity, setae are mostly adopted as magnetism gathering media in the early stage, and the magnetic media are easily blocked due to the fact that the ore feeding direction is consistent with the ore discharging direction, so that the application of the flat ring type high gradient magnetic separator is limited to a certain extent. The vertical ring high gradient magnetic separator has the advantages of vertical rotation of the rotating ring, back flushing of concentrate, and the matching of a pulse mechanism, and has the advantages of large enrichment ratio, high separation efficiency, difficult blockage of magnetic media and the like. As the rotary ring structure is only about 30 percent used for sorting weakly magnetic minerals, the problems of low rotary ring utilization rate, small processing capacity per unit ring body area and the like exist. The excitation modes of the high-gradient magnetic separator are all electromagnetic fields, and the problems of high excitation power and high energy consumption exist.
Along with the gradual improvement of the performance of the magnetic material, CN201644210U discloses a permanent-magnet high-gradient magnetic separator, the background magnetic induction intensity can reach 0.75T, and the energy consumption of the high-gradient magnetic separator is reduced; however, there are problems that the background magnetic induction is not adjustable, the magnetic induction intensity is low, the effective operating depth of the magnetic field is shallow, the processing capability is low, and the like.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a compound magnetism system is used to flat ring high gradient magnet separator increases the throughput of high gradient magnet separator unit ring body area, reduces the energy consumption of high gradient magnet separator, can satisfy the background magnetic induction intensity requirement that high gradient magnet separator selected separately weak magnetic mineral.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a composite magnetic system for a flat-ring high-gradient magnetic separator comprises a plurality of permanent magnetic poles and electromagnetic magnetic poles which are distributed in the circumferential direction; the number of the permanent magnetic poles and the number of the electromagnetic magnetic poles are even, the permanent magnetic poles and the electromagnetic magnetic poles are in the same circumferential positions and are opposite one to one, the polarities of the permanent magnetic poles and the electromagnetic magnetic poles which are opposite one to one are the same, the polarities of two adjacent permanent magnetic poles are opposite, and the polarities of two adjacent electromagnetic magnetic poles are opposite; the permanent magnetic pole is externally provided with a cylinder body which can rotate around the axis of the permanent magnetic pole, and the magnetism gathering medium is fixed in the circumferential direction of the cylinder body and rotates along with the cylinder body.
The length of the permanent magnetic pole in the circumferential direction is 340-680 mm, the radial width is 108-104 mm, and the axial height is 130-260 mm.
The permanent magnetic pole is made of ferrite or neodymium iron boron permanent magnetic material.
The remanence Br of the ferrite is more than or equal to 380mT, the coercive force Hc is more than or equal to 270kA/m, and the maximum magnetic energy product (BH) max is more than or equal to 27kJ/m3(ii) a The Br of the Nd-Fe-B permanent magnet material is more than or equal to 1.25T, the coercive force Hc is more than or equal to 925kA/m, and the maximum magnetic energy product (BH) max is more than or equal to 318.5kJ/m3。
The permanent magnetic poles are fixedly connected to the bottom plate along the circumferential direction, the bottom plate is fixedly connected to the shaft sleeve through the rib plate, and the shaft sleeve is fixed to a main shaft of the high-gradient magnetic separator; the plurality of permanent magnetic poles, the bottom plate, the rib plate and the shaft sleeve form a permanent magnetic pole group.
The bottom plate is made of an electrical pure iron material.
The electromagnetic magnetic pole is composed of an iron core and a power-on spiral coil, the power-on spiral coil is U-shaped, and the size of the iron core is the same as that of the permanent magnetic pole.
The iron core is made of an electrical pure iron material; the conducting wire of the electrified spiral coil is red copper with a rectangular hole in the inner diameter, and the number of turns of the spiral coil of a single magnetic pole is 104-156 turns.
The magnetic fluxes generated by the permanent magnetic poles and the electromagnetic magnetic poles with the same polarity are mutually extruded, and a magnetizing magnetic field with higher magnetic induction intensity is generated in a magnetic gathering medium of the high-gradient magnetic separator; the magnetic force lines generated by the permanent magnetic pole groups in the direction opposite to the electromagnetic magnetic pole heads are converged to the adjacent permanent magnetic pole groups with opposite polarities along the magnetic conduction bottom plate in the circular cylinder, and the magnetic force lines in the direction opposite to the electromagnetic magnetic pole heads are converged to the other pole head of the U-shaped electrified spiral coil along the iron core, so that closed circulation of the magnetic force lines is formed.
Compared with the prior art, the beneficial effects of the utility model are that:
the magnetic fluxes generated by the permanent magnetic pole and the electromagnetic magnetic pole with the same polarity are mutually extruded, and a magnetizing magnetic field with higher magnetic induction intensity is generated in the magnetic gathering medium of the high-gradient magnetic separator; the magnetic force lines generated by the permanent magnetic pole groups in the direction opposite to the electromagnetic magnetic pole heads are converged to the adjacent permanent magnetic pole groups with opposite polarities along the magnetic conduction bottom plate in the circular cylinder, and the magnetic force lines in the direction opposite to the electromagnetic magnetic pole heads are converged to the other pole head of the U-shaped electrified spiral coil along the iron core, so that closed circulation of the magnetic force lines is formed.
The utility model discloses combine together permanent magnetism magnetic system and electromagnetism magnetic system, compare with traditional single electromagnetism magnetic system or permanent magnetism magnetic system, both make full use of permanent magnetism magnetic system energy consumption low, advantage such as flat ring high gradient magnet separator unit throughput is big, overcome again that permanent magnetism magnetic system produces background magnetic induction intensity low, difficult shortcoming such as adjustment, can effectively reduce the high problem of high gradient magnetic separation technique energy consumption.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the permanent magnet system of the present invention;
FIG. 3 is a schematic diagram of the electromagnetic system of the present invention;
fig. 4 is a schematic diagram of the present invention.
In the figure: 1-permanent magnetic pole 2-bottom plate 3-support rib plate 4-shaft sleeve 5-cylinder 6-magnetic medium 7-spiral coil 8-iron core 9-circumferential length 10-radial width 11-axial height
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-3, a composite magnetic system for a flat-ring high-gradient magnetic separator comprises 2, 4 or 6 permanent magnetic poles 1 and electromagnetic magnetic poles which are uniformly distributed in the circumferential direction. The permanent magnetic poles 1 are circumferentially identical to the electromagnetic magnetic poles and are opposite to the electromagnetic magnetic poles one by one, the permanent magnetic poles 1 opposite to one are identical to the electromagnetic magnetic poles in polarity, the two adjacent permanent magnetic poles 1 are opposite in polarity, and the two adjacent electromagnetic magnetic poles are opposite in polarity.
As shown in FIG. 2, the permanent magnetic pole 1 has a circumferential length of 340-680 mm, a radial width of 108-104 mm, and an axial height of 130-260 mm. The permanent magnetic pole 1 is made of ferrite or neodymium iron boron permanent magnetic material. The remanence Br of the ferrite is more than or equal to 380mT, the coercive force Hc is more than or equal to 270kA/m, and the maximum magnetic energy product (BH) max is more than or equal to 27kJ/m3(ii) a The Br of the Nd-Fe-B permanent magnet material is more than or equal to 1.25T, the coercive force Hc is more than or equal to 925kA/m, and the maximum magnetic energy product (BH) max is more than or equal to 318.5kJ/m3。
2. 4 or 6 permanent magnetic poles 1 are fixedly connected to the outer wall of a bottom plate 2 along the circumferential direction, the bottom plate 2 is made of an electrical pure iron material, the bottom plate 2 is fixedly connected to a shaft sleeve 4 through a rib plate 3, and the shaft sleeve 4 is fixed on a main shaft of a high-gradient magnetic separator; 2. 4 or 6 permanent magnetic poles 1, a bottom plate 2, a rib plate 3 and a shaft sleeve 4 form a permanent magnetic pole group.
As shown in fig. 3, the electromagnetic pole is composed of an iron core 8 and an energized spiral coil 7, the energized spiral coil 7 is U-shaped, and the size of the iron core 8 is the same as that of the permanent magnet pole 1. The iron core 8 is made of an electrical pure iron material. The conducting wire of the electrified spiral coil 7 is red copper with a rectangular hole in the inner diameter, and the number of turns of the spiral coil of a single magnetic pole is 104-156 turns. The cooling mode of the spiral coil 7 is oil cooling or air cooling.
As shown in figure 1 of the drawings, in which,
the outside of the permanent magnetic pole group is provided with a circular cylinder 5 which can rotate around the axis of the permanent magnetic pole group, and a magnetism gathering medium 6 of the high-gradient magnetic separator is fixed in the circumferential direction of the cylinder 5 through stainless steel bolts and can rotate along with the cylinder 5. And 2 groups of permanent magnet pole groups are arranged along the axis direction.
As shown in FIG. 4, an extrusion magnetic field is generated between the permanent magnet pole group and the electromagnetic magnetic pole head, and the background magnetic induction can reach 1.0-1.5T. Taking the extrusion pole as N pole for example, the generated magnetic lines of force are gathered in the magnetism gathering medium 6 of the high gradient magnetic separator to generate higher magnetic induction intensity, thereby playing the role of sorting weakly magnetic minerals. The magnetic force lines of the S pole of the permanent magnetic pole group back to the direction of the electromagnetic magnetic pole head are converged to the adjacent magnetic pole group with opposite polarities along the magnetic conduction bottom plate in the cylinder, and the magnetic force lines of the electromagnetic magnetic pole head with opposite directions are converged to the other pole head of the U-shaped electrified spiral coil along the iron core, so that closed loop circulation of the magnetic force lines is formed.
Example (b):
taking the magnetic induction intensity of the permanent magnetic pole generated on the surface of the cylinder as an example of 0.75T, Y30BH ferrite and N42 neodymium iron boron permanent magnetic materials are selected, the magnetic conductive material is DT4 electrical pure iron, and the size of the magnetic block is 65mm multiplied by 85mm multiplied by 18 mm. The radial width of the permanent magnetic pole is 90mm, and the permanent magnetic pole is composed of a layer of ferrite and four layers of neodymium iron boron; three groups of magnetic blocks are axially arranged on the permanent magnetic pole, and the axial height is 195 mm; six groups of magnetic blocks are arranged in the circumferential direction of the permanent magnetic pole, and the length in the circumferential direction is 510 mm. Taking the background magnetic induction intensity generated by the electromagnetic system as 1.0T as an example, the spiral conductor is a red copper conductor with a rectangular hole inside diameter, the cross-sectional dimension is 26mm multiplied by 22mm multiplied by 5mm, and the minimum current density is 4A/mm2The number of turns is 104, 8 turns in radial direction and 13 turns in axial direction. The composite magnetic system formed by the scheme can generate the background magnetic induction intensity of 0.75-1.5T in the separation area of the flat-ring high-gradient magnetic separator, and completely meets the requirement of separating weak magnetic minerals.
The utility model has the advantages that the magnetic fluxes generated by the permanent magnetic pole 1 and the electromagnetic magnetic pole with the same polarity are mutually extruded, and a magnetizing magnetic field with higher magnetic induction intensity is generated in the magnetic gathering medium 6 of the high-gradient magnetic separator; the magnetic force lines generated by the permanent magnetic pole groups in the direction opposite to the electromagnetic magnetic pole heads are converged to the adjacent permanent magnetic pole groups with opposite polarities along the magnetic conduction bottom plate in the circular cylinder, and the magnetic force lines in the direction opposite to the electromagnetic magnetic pole heads are converged to the other pole head of the U-shaped electrified spiral coil along the iron core, so that closed circulation of the magnetic force lines is formed.
The utility model discloses combine together permanent magnetism magnetic system and electromagnetism magnetic system, compare with traditional single electromagnetism magnetic system or permanent magnetism magnetic system, both make full use of permanent magnetism magnetic system energy consumption low, advantage such as flat ring high gradient magnet separator unit throughput is big, overcome again that permanent magnetism magnetic system produces background magnetic induction intensity low, difficult shortcoming such as adjustment, can effectively reduce the high problem of high gradient magnetic separation technique energy consumption.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a compound magnetic system for flat ring high gradient magnet separator which characterized in that: comprises a plurality of permanent magnetic poles and electromagnetic magnetic poles which are distributed in the circumferential direction; the number of the permanent magnetic poles and the number of the electromagnetic magnetic poles are even, the permanent magnetic poles and the electromagnetic magnetic poles are in the same circumferential positions and are opposite one to one, the polarities of the permanent magnetic poles and the electromagnetic magnetic poles which are opposite one to one are the same, the polarities of two adjacent permanent magnetic poles are opposite, and the polarities of two adjacent electromagnetic magnetic poles are opposite; the permanent magnetic pole is externally provided with a cylinder body which can rotate around the axis of the permanent magnetic pole, and the magnetism gathering medium is fixed in the circumferential direction of the cylinder body and rotates along with the cylinder body.
2. The composite magnetic system for the flat-ring high-gradient magnetic separator as claimed in claim 1, wherein the permanent magnetic poles have a circumferential length of 340-680 mm, a radial width of 108-104 mm, and an axial height of 130-260 mm.
3. The composite magnetic system for the flat-ring high-gradient magnetic separator as claimed in claim 1, wherein the permanent magnetic poles are made of ferrite or neodymium-iron-boron permanent magnetic material.
4. The composite magnetic system for the flat-ring high-gradient magnetic separator as claimed in claim 3, wherein the remanence Br of the ferrite is more than or equal to 380mT, the coercive force Hc is more than or equal to 270kA/m, and the maximum energy product (BH) max is more than or equal to 27kJ/m3(ii) a The Br of the Nd-Fe-B permanent magnet material is more than or equal to 1.25T, the coercive force Hc is more than or equal to 925kA/m, and the maximum magnetic energy product (BH) max is more than or equal to 318.5kJ/m3。
5. The composite magnetic system for the flat-ring high-gradient magnetic separator according to claim 1, wherein the plurality of permanent magnetic poles are fixedly connected to a bottom plate along a circumferential direction, the bottom plate is fixedly connected to a shaft sleeve through a rib plate, and the shaft sleeve is fixed to a main shaft of the high-gradient magnetic separator; the plurality of permanent magnetic poles, the bottom plate, the rib plate and the shaft sleeve form a permanent magnetic pole group.
6. The composite magnetic system for the flat-ring high-gradient magnetic separator as claimed in claim 5, wherein the bottom plate is made of an electrical pure iron material.
7. The composite magnetic system for the flat-ring high-gradient magnetic separator as claimed in claim 1, wherein the electromagnetic magnetic pole is composed of an iron core and an energized spiral coil, the energized spiral coil is U-shaped, and the size of the iron core is the same as that of the permanent magnetic pole.
8. The composite magnetic system for the flat-ring high-gradient magnetic separator as claimed in claim 7, wherein the iron core is made of an electrical pure iron material; the conducting wire of the electrified spiral coil is red copper with a rectangular hole in the inner diameter, and the number of turns of the spiral coil of a single magnetic pole is 104-156 turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020152366.1U CN211937379U (en) | 2020-02-05 | 2020-02-05 | Composite magnetic system for flat-ring high-gradient magnetic separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020152366.1U CN211937379U (en) | 2020-02-05 | 2020-02-05 | Composite magnetic system for flat-ring high-gradient magnetic separator |
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| Publication Number | Publication Date |
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| CN211937379U true CN211937379U (en) | 2020-11-17 |
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| CN202020152366.1U Active CN211937379U (en) | 2020-02-05 | 2020-02-05 | Composite magnetic system for flat-ring high-gradient magnetic separator |
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