CN1063625A - The Nd-Fe-B permanent magnet formula magnetic system that is used for magnetic separator - Google Patents
The Nd-Fe-B permanent magnet formula magnetic system that is used for magnetic separator Download PDFInfo
- Publication number
- CN1063625A CN1063625A CN91100572A CN91100572A CN1063625A CN 1063625 A CN1063625 A CN 1063625A CN 91100572 A CN91100572 A CN 91100572A CN 91100572 A CN91100572 A CN 91100572A CN 1063625 A CN1063625 A CN 1063625A
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- CN
- China
- Prior art keywords
- magnetic
- magnet
- separator
- magnetization
- permanent magnet
- 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.)
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Classifications
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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
A kind of Nd-Fe-B permanent magnet formula magnetic is, can be applicable to drum magnetic separator, magnetic-pulley separator and chute type magnetic separator.This magnetic system is made up of magnetic conductive board (1), main magnet (2) and auxiliary magnet (3), the technical characterictic of this magnetic system is: the polarity of adjacent main magnet is opposite, the direction of magnetization of auxiliary magnet is vertical mutually with the direction of magnetization of main magnet, and their each magnetic field of being produced of point in the ore dressing working space strengthens mutually.This magnetic system can produce strong magnetic force, can replace the strong magnetic force magnetic separator of complex structure heaviness, expensive carrying magnetic medium, simultaneously, the contradiction of two indexs of ore dressing (grade and the rate of recovery) is eased and they are improved simultaneously.
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 1500mm.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 60.08% by 59.06%, and the rate of recovery of iron brings up to 63.58% by 60.79%.
Claims (7)
1, a kind of permanent magnet type magnetic system that is used for magnetic separator is made up of magnetic conductive board (1) and magnet, and it is characterized in that: magnet is made of main magnet (2), auxiliary magnet (3); 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; 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.
2, a kind of permanent magnet type magnetic system that is used for magnetic separator according to claim 1, it is characterized in that: the width of main magnet (2) and height, 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.
3, a kind of permanent magnet type magnetic system that is used for magnetic separator according to claim 2, it is characterized in that: magnetic conductive board (1) is a cylindrical shape, and is fixed on the axle of magnetic separator.
4, a kind of permanent magnet type magnetic system that is used for magnetic separator according to claim 3 is characterized in that: 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; Magnetic is that the scope of cornerite is by 100 ° to 360 °.
5, a kind of permanent magnet type magnetic system that is used for magnetic separator according to claim 2, it is characterized in that: magnetic conductive board (1) is a flat shape.
6, a kind of permanent magnet type magnetic system that is used for magnetic separator according to claim 5 is characterized in that: magnetic be width range by 200mm to 1000mm, magnetic be length range by 400mm to 1500mm.
7, according to claim 4,6 described a kind of permanent magnet type magnetic systems that are used for magnetic separator, it is characterized in that: magnet is that neodymium iron boron magnetic body series or other rare earth magnet series material are 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 true CN1063625A (en) | 1992-08-19 |
| CN1053601C 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 (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103534900A (en) * | 2011-07-08 | 2014-01-22 | 三菱电机株式会社 | Permanent magnet type electric rotating machine and manufacturing method thereof |
| CN105268547A (en) * | 2015-11-06 | 2016-01-27 | 长沙矿冶研究院有限责任公司 | Wet permanent magnetic roll type high magnetic separator |
| CN105280324A (en) * | 2014-07-18 | 2016-01-27 | 日立金属株式会社 | Magnet unit and manufacturing method therefor |
| 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 |
| 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 |
| CN109650500A (en) * | 2019-01-22 | 2019-04-19 | 中国科学院上海高等研究院 | A kind of magnetic field arrangement of the high gradient magnetic separator for magnetic-coagulation water process |
Families Citing this family (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 |
| CN107185709B (en) * | 2017-07-11 | 2019-03-19 | 张弦 | Magnet apparatus, magnetic separator and application |
-
1991
- 1991-02-01 CN CN91100572A patent/CN1053601C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103534900A (en) * | 2011-07-08 | 2014-01-22 | 三菱电机株式会社 | Permanent magnet type electric rotating machine and manufacturing method thereof |
| CN103534900B (en) * | 2011-07-08 | 2016-01-20 | 三菱电机株式会社 | Permanet magnet type rotary electric machine and manufacture method thereof |
| CN105280324A (en) * | 2014-07-18 | 2016-01-27 | 日立金属株式会社 | Magnet unit and manufacturing method therefor |
| 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 |
| CN105268547A (en) * | 2015-11-06 | 2016-01-27 | 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 |
| CN109650500A (en) * | 2019-01-22 | 2019-04-19 | 中国科学院上海高等研究院 | A kind of magnetic field arrangement of the high gradient magnetic separator for magnetic-coagulation water process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1053601C (en) | 2000-06-21 |
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