CN1053601C - Neodymium iron boron permanent magnet series for magnetic sorting machine - Google Patents
Neodymium iron boron permanent magnet series for magnetic sorting machine Download PDFInfo
- Publication number
- CN1053601C CN1053601C CN91100572A CN91100572A CN1053601C CN 1053601 C CN1053601 C CN 1053601C CN 91100572 A CN91100572 A CN 91100572A CN 91100572 A CN91100572 A CN 91100572A CN 1053601 C CN1053601 C CN 1053601C
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- CN
- China
- Prior art keywords
- magnetic
- magnet
- main magnet
- separator
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/22—Details of magnetic or electrostatic separation characterised by the magnetical field, special shape or generation
Abstract
The present invention relates to a magnetic system of an Nd-Fe-B permanent magnet type, which can be applied to drum magnetic separators, pulley magnetic separators and sliding-groove magnetic separators. The magnetic system is composed of a magnetism conducting plate (1), main magnets (2) and an auxiliary magnet (3). The magnetic system has the technical characteristics that the polarities of adjacent main magnets are opposite, and the magnetization direction of the auxiliary magnet is perpendicular to the magnetization directions of the main magnets; moreover, magnetic fields generated on each point in ore dressing working space are enhanced mutually. The magnetic system can generate strong magnetic force, replace a magnetic separator having strong magnetic force, having the defects of complicated structure, heavy weight and high price and having magnetic media, and also relieve the contradiction of two ore dressing indexes (quality and recovery rate) so as to improve the indexes at the same time.
Description
The present invention is that a kind of Nd-Fe-B permanent magnet formula magnetic is, both can be used for drum magnetic separator, also can be used for magnetic-pulley separator, also can be used for the chute type magnetic separator.
From the variation of magnetic force that produces, general magnetic separator has two classes now.The first kind is to be used for the weak magnetic force magnetic separator (for example drum magnetic separator, magnetic-pulley separator and chute type magnetic separator) that strongly magnetic material (for example magnetic iron ore) separates; Second class is to be used for the strong magnetic force magnetic separator (for example Jones's magnetic separator) that weakly magnetic material (for example bloodstone) separates.The main distinction of two class magnetic separators is: in second class magnetic separator when operation, need be by means of magnetic medium (steel ball, band tooth steel plate, steel fine hair, steel wire etc.), so complex structure, heaviness, the cost costliness; First kind magnetic separator does not need magnetic medium, so simple structure, with low cost.The present invention is applied to magnetic separator, changes the above-mentioned form of magnetic separator classification, makes first kind magnetic separator enter the ranks of strong magnetic force magnetic separator.In many ore dressings operation (for example separation of bloodstone) can replace the magnetic separator of the carrying magnetic medium of complex structure, cost costliness.
Now general magnetic separator magnetic system, not only number of magnet poles is few, and on the distance of ore grain movement, the magnetic force size is very inhomogeneous, this conflicts two indexs (rate of recovery and grade) of ore dressing: for improving the rate of recovery, require to improve magnetic force, still, the quantity of non magnetic entrainment is along with also increasing, thereby grade is descended; Otherwise,, require to reduce magnetic force for upgrading.But part magnetic thing is also just washed out by ore pulp easily, thereby the rate of recovery is reduced.The present invention not only can produce strong magnetic force, and on the distance of ore grain movement, the number of magnetic pole upset increases considerably, and the magnetic force size is more even, thereby alleviates the contradiction of two indexs of ore dressing.Because in the process of ore grain movement, the magnetic chain that magnetic of the present invention system can make magnetic material constitute is overturn at the volley and many times and is not washed out by ore pulp, and non magnetic entrainment is washed out, thereby the grade and the rate of recovery are improved simultaneously.
The present invention adopts neodymium iron boron magnetic body or other rare earth magnet, and adopts the magnetic circuit structure that is suitable for this class magnet.The present invention is by magnetic conductive board (1), and main magnet (2) and auxiliary magnet (3) are formed.As can be seen from Figure 1, magnetic conductive board (1) is cylindrical shape or its part and is fixed on the magnetic separation arbor.The length direction of magnetic system and magnetic separator axial consistent.Wrap angle is applicable to drum magnetic separator by 100 ° to 170 ° magnetic system.Wrap angle is applicable to magnetic-pulley separator by 130 to 360 magnetic system.Be it can also be seen that by Fig. 2 magnetic conductive board (1) also can be a flat shape, this situation is applicable to the chute type magnetic separator.
The direction of magnetization of main magnet (2) is to arrange like this: the mutual antiparallel of the direction of magnetization of adjacent main magnet, the direction of magnetization of auxiliary magnet (3) is to arrange like this: its direction of magnetization is vertical mutually with the main magnet direction of magnetization, and mid point (A point) magnetic field that is produced is consistent at the magnetic direction that this point is produced with adjacent auxiliary magnet above it to make main magnet, and mid point (B point) magnetic field that is produced is consistent at the magnetic direction that this point is produced with adjacent main magnet above it to make auxiliary magnet simultaneously.The number of main magnet can be by 3 to 50.
Be used for the width and the height of drum magnetic separator master magnet (2), the width of auxiliary magnet (3) and height decide by the requirement to peak field and peak valley magnetic field difference.Apart from the scope of the peak field at pole-face 8mm place be 2000 Austria to 7000 Austria, peak valley magnetic field difference by 500 Austria to 1500 Austria.
The length direction of magnetic system and magnetic separator axial consistent.Magnetic be length range by 300mm to 3500mm; The scope of the radius of curvature R of magnetic system by 150mm to 1000mm; As shown in Figure 1
Being used for chute type magnetic separator magnetic conductive board (1) is flat shape.Magnetic be width range by 200mm to 1000mm, magnetic be length range by 400mm to 1500mmm.As shown in Figure 2
With upper magnet is that neodymium iron boron series or other rare earth magnet series material are made.
Test effect example of the present invention:
The magnetic system that the surperficial peak field of tube skin is 3500 Austria is applied to drum magnetic separator, and (Φ 750 * 1800mm) is overtesting, simultaneously it is compared with now general drum magnetic separator, magnetic of the present invention is to make iron concentrate grade bring up to 60.0% by 59.06%, and the rate of recovery of iron is brought up to 63.58%. by 60.79%
Claims (3)
1. a Nd-Fe-B permanent magnet formula magnetic that is used for magnetic separator that is made of magnetic conductive board (1), main magnet (2), auxiliary magnet (3) is, it is characterized in that arrangement mode, width and the height of main magnet (2) and auxiliary magnet (3); Magnetic conductive board (1) shape, with the method for attachment of magnetic separator; Width, length, cornerite, the radius of curvature of magnetic system; The arrangement mode of main magnet (2) and auxiliary magnet (3) is to determine at 2 magnetic directions that produced of A, B according to the direction of magnetization of magnet and main magnet, auxiliary magnet: the mutual antiparallel of the direction of magnetization of promptly adjacent main magnet, the direction of magnetization of auxiliary magnet is vertical mutually with the direction of magnetization of main magnet, and the magnetic field that produced of mid point A is consistent at the magnetic direction that this point is produced with adjacent auxiliary magnet above it to make main magnet, and the magnetic field that produced of mid point B is consistent at the magnetic direction that this point is produced with adjacent main magnet above it to make auxiliary magnet simultaneously; The width of main magnet and auxiliary magnet and highly be by the difference in peak field and peak valley magnetic field is required to determine: promptly apart from the scope in the honeybee value magnetic field at pole-face 8mm place be by 2000 Austria to 7000 Austria, honeybee paddy magnetic field difference is to 1500 Austria by 500 Austria; Be fixed on the magnetic conductive board (1) on the drum magnetic separator axle, it is shaped as cylindrical so, is used for being shaped as planar shaped and placing the travelling belt below of chute type magnetic separator; The magnetic that is used for drum magnetic separator is that length range is to 3500mm by 300mm, the scope of the radius of curvature R of magnetic system is to 1000mm by 150mm, magnetic is that the scope of cornerite is by 100 ° to 360 °, the magnetic that is used for the chute type magnetic separator be length range be by 400mm to 1500mm, width range is to 1000mm by 200mm.
2. a kind of Nd-Fe-B permanent magnet formula magnetic system that is used for magnetic separator according to claim 1 is characterized in that the number of said main magnet (2) can be by 3 to 50.
3. a kind of Nd-Fe-B permanent magnet formula magnetic system that is used for magnetic separator according to claim 1 is characterized in that said main magnet (2) and auxiliary magnet (3) are by neodymium iron boron series or SmCo
5, Sm
2Co
17Rare earth magnet series is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91100572A CN1053601C (en) | 1991-02-01 | 1991-02-01 | Neodymium iron boron permanent magnet series for magnetic sorting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91100572A CN1053601C (en) | 1991-02-01 | 1991-02-01 | Neodymium iron boron permanent magnet series for magnetic sorting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1063625A CN1063625A (en) | 1992-08-19 |
| CN1053601C true CN1053601C (en) | 2000-06-21 |
Family
ID=4904695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91100572A Expired - Fee Related CN1053601C (en) | 1991-02-01 | 1991-02-01 | Neodymium iron boron permanent magnet series for magnetic sorting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1053601C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630565B (en) * | 2009-06-16 | 2011-12-28 | 武汉峰境磁选技术有限公司 | Device for constituting permanent magnet full-acting surface |
| CN107185709A (en) * | 2017-07-11 | 2017-09-22 | 张弦 | Magnet apparatus, magnetic separator and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101162637B (en) * | 2007-09-17 | 2011-05-11 | 山西省平遥县新星磁材有限公司 | Permanent magnet device for ultra-high field intensity cobber |
| JP5784724B2 (en) * | 2011-07-08 | 2015-09-24 | 三菱電機株式会社 | Method for manufacturing permanent magnet type rotating electric machine |
| CN105280324B (en) * | 2014-07-18 | 2018-08-24 | 日立金属株式会社 | The manufacturing method of magnet unit and magnet unit |
| CN105268547B (en) * | 2015-11-06 | 2017-05-24 | 长沙矿冶研究院有限责任公司 | Wet permanent magnetic roll type high magnetic separator |
| CN108114810A (en) * | 2016-11-28 | 2018-06-05 | 宁波鑫桀斯磁应用科技有限公司 | A kind of run-in index magnetic sheet assembly |
| CN107583767A (en) * | 2017-09-15 | 2018-01-16 | 河南易成新能源股份有限公司 | Wind magnetic combined-type magnetic seperator |
| CN107716104A (en) * | 2017-09-15 | 2018-02-23 | 河南易成新能源股份有限公司 | Slip fraction magnetic separator |
| CN107790281A (en) * | 2017-09-15 | 2018-03-13 | 河南易成新能源股份有限公司 | Magnetic separator with hole sizer |
| CN109650500B (en) * | 2019-01-22 | 2022-08-02 | 中国科学院上海高等研究院 | Magnetic field arrangement structure of high-gradient magnetic separator for magnetic coagulation water treatment |
-
1991
- 1991-02-01 CN CN91100572A patent/CN1053601C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630565B (en) * | 2009-06-16 | 2011-12-28 | 武汉峰境磁选技术有限公司 | Device for constituting permanent magnet full-acting surface |
| CN107185709A (en) * | 2017-07-11 | 2017-09-22 | 张弦 | Magnet apparatus, magnetic separator and application |
| CN107185709B (en) * | 2017-07-11 | 2019-03-19 | 张弦 | Magnet apparatus, magnetic separator and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1063625A (en) | 1992-08-19 |
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