CN102737808A - Magnetic system of permanent magnet type magnetic separator - Google Patents
Magnetic system of permanent magnet type magnetic separator Download PDFInfo
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- CN102737808A CN102737808A CN2011100953333A CN201110095333A CN102737808A CN 102737808 A CN102737808 A CN 102737808A CN 2011100953333 A CN2011100953333 A CN 2011100953333A CN 201110095333 A CN201110095333 A CN 201110095333A CN 102737808 A CN102737808 A CN 102737808A
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Abstract
The invention discloses a magnetic system of a permanent magnet type magnetic separator for mineral separation. The magnetic system is formed in a mode that paired annular magnetizers are extruded axially by end faces of the same polarity of annular magnets, so that the magnetic poles of the paired annular magnetizers are respectively the n pole and the s pole so as to form a magnetic system unit; the diameters of the annular magnetizers (4, 5) are larger than the diameters of annular magnets (2, 3, 6); and the outer edges of the two annular magnetizers (4, 5) extend along opposite directions of 90 degrees so as to form a pair of magnetic poles (n, s) which are close to each other, wherein the radial cross section of the end part of one magnetic pole (s) is a heteroideus cross section which becomes narrower gradually. With the adoption of the magnetic system, the performance of a magnetic field with high strength and multiple high gradients is realized; and moreover, the magnetic field can be generated without electric energy, however the performance is approximate to the electromagnetism performance, so that the operation cost is extremely low.
Description
Technical field
The present invention relates to a kind of magnetic system that in ore-dressing practice, is used for the sorting magnetic material or removes the permanent-magnet type magnetic separator of magnetisable material, particularly a kind of magnetic system that can form the magnetic separator of multiple high-gradient magnetic field.
Background technology
Existing permanent-magnet type magnetic separator is between magnetic pole N and S, and its magnetic field intensity has only a graded, and its graded is less.The CN2289609Y permanent magnetic roll assembly of roll magnetic separator dry-type magnetic extractor that the CN2354668Y vertical magnetic separation machine that on December 22nd, 1999 was announced and on September 2nd, 1998 are announced; Essentially identical concentrated magnetic cylinder of structure and permanent magnetic roll assembly of roll magnetic separator have been adopted respectively; Promptly adopt the identical toroidal magnet of annular magnetizer (document is claimed the pure iron ring) two ends axial compression polarity; Be that N and N are relative or S is relative with S,, make the magnetic flux density of magnetic conductor outer rim significantly improve because the magnetic conductor magnetic flux density strengthens.Simultaneously, the magnetic flux density of magnetic conductor outer rim changes along with the relative thickness of magnetic conductor and magnet.Though described concentrated magnetic cylinder or permanent magnetic roll assembly of roll magnetic separator have significantly improved magnetic flux density, can not form high-gradient magnetic field between magnetic pole, more can not form multiple high-gradient magnetic field.
Summary of the invention
In order to remedy the deficiency of above-mentioned prior art, the invention provides a kind of permanent-magnet type magnetic separator magnetic system that can form multiple high-gradient magnetic field.
For solving the problems of the technologies described above; The present invention takes following technical scheme: toroidal magnet is with identical at least one pair of annular magnetizer of end face axial extruding of polarity; Make said paired annular magnetizer magnetic pole be respectively the n utmost point, the s utmost point, forming a magnetic is the unit, and the diameter of annular magnetizer is greater than the diameter of toroidal magnet; The outer rim of two annular magnetizers is extended along 90 degree directions in opposite directions; Form a pair of approaching magnetic pole each other, distance between two poles is from being 0.5-50 millimeters, the odd-shaped cross section of radial section for narrowing down gradually of said a pair of one of them magnetic pole of approaching magnetic pole each other; It is 1.5-500:1 that the ratio on this narrow limit, odd-shaped cross section end is provided with scope, so that the high-gradient magnetic field that forms high strength between magnetic pole n and the s, repeats to occur.In practical application, can be that unit shaft is a plurality of to stack with said magnetic as required, quantitative range is 1-100, promptly forms the magnetic separator magnetic roller of multiple high-gradient magnetic field.
Permanent-magnet type magnetic provided by the invention is that beneficial effect is; Realized the performance of high strength, multiple high-gradient magnetic field; Can make the magnetic field intensity of magnetic pole reach H=960KA/M-1720KA/M (1200OOe-21500Oe); Different magnetic field intensity and magnetic field gradient are set according to actual needs, and the magnetic pole effective cross-section is than being n: s=1.5:1-1000:1; Owing to adopt permanent magnet, the generation in magnetic field is without electric energy, and its operation power consumption is different according to magnetic roller size, be merely 3%-10% of electromagnet, and its performance and electromagnetic performance are approaching, so operating cost is very low.
Because the design's magnetic field intensity is higher, makes the former low weak magnetic mineral of specific susceptibility that is in become possibility with the permanent magnetic system sorting.For example realization suitability for industrialized production such as pyrolusite, manganese oxide mine tailing becomes possibility, and after the magnetic separator made from this magnetic system was handled, the rate of recovery improved greatly, and energy consumption is very little.
Below in conjunction with accompanying drawing the present invention is further specified.
Description of drawings
Fig. 1 is the cellular construction sketch map for magnetic of the present invention.
Fig. 2 is the structural representation of unit stack for many magnetic of the present invention.
Among the figure, 1, main shaft, 2,3,6, be toroidal magnet, 4, the annular magnetizer n utmost point, 5, the annular magnetizer s utmost point.
Embodiment
As shown in Figure 1, on main shaft (1), toroidal magnet (2,3,6) pushes a pair of annular magnetizer (4,5) with the identical end face axial of polarity; Make this be respectively the n utmost point, the s utmost point to the annular magnetizer magnetic pole; Forming a magnetic is the unit, and the diameter of annular magnetizer (4,5) is greater than the diameter of toroidal magnet (2,3,6), and the outer rim of two annular magnetizers (4,5) is extended along 90 degree directions in opposite directions; Form a pair of approaching magnetic pole (n, s) each other; Distance between two poles is from being 0.5-50 millimeters, and the radial section of one of them magnetic pole (s) end is the odd-shaped cross section that narrows down gradually, and it is 1.5-500:1 that the ratio on narrow limit, odd-shaped cross section end is provided with scope; Present embodiment is 10:1, so that the high-gradient magnetic field that between magnetic pole n and s, forms high strength, repeats to occur.
As shown in Figure 2, be that unit shaft is a plurality of to stack with said magnetic according to actual needs, quantitative range is 1-100, forms the magnetic separator magnetic roller of multiple high-gradient magnetic field.Slit filling between, magnet fastening such as said magnetic roller main shaft two ends extruding and the magnetic conductor etc. is handled and is all belonged to existing routine techniques, does not give unnecessary details at this.
Claims (3)
1. the magnetic of a permanent-magnet type magnetic separator is; Constitute with the identical end face axial extruding annular magnetizer of polarity by toroidal magnet, it is characterized in that toroidal magnet (2,3,6) pushes a pair of annular magnetizer (4,5) with the identical end face axial of polarity; Make said paired annular magnetizer magnetic pole be respectively the n utmost point, the s utmost point; Forming a magnetic is the unit, and the diameter of annular magnetizer (4,5) is greater than the diameter of toroidal magnet (2,3,6), and the outer rim of two annular magnetizers (4,5) is extended along 90 degree directions in opposite directions; Form a pair of approaching magnetic pole (n, s) each other, the odd-shaped cross section of the radial section of one of them magnetic pole (s) end for narrowing down gradually.
2. the magnetic system of permanent-magnet type magnetic separator according to claim 1 is characterized in that, described approaching magnetic pole (n, s) each other, and distance between two poles is from being 0.5-50 millimeters; The odd-shaped cross section of the radial section of described magnetic pole (s) end for narrowing down gradually, it is 1.5-500:1 that the ratio on this narrow limit, odd-shaped cross section end is provided with scope.
3. the magnetic system of permanent-magnet type magnetic separator according to claim 1 is characterized in that, is that unit shaft is a plurality of to stack with described magnetic, and quantitative range is 1-100, forms magnetic separator magnetic roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100953333A CN102737808A (en) | 2011-04-16 | 2011-04-16 | Magnetic system of permanent magnet type magnetic separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100953333A CN102737808A (en) | 2011-04-16 | 2011-04-16 | Magnetic system of permanent magnet type magnetic separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102737808A true CN102737808A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100953333A Pending CN102737808A (en) | 2011-04-16 | 2011-04-16 | Magnetic system of permanent magnet type magnetic separator |
Country Status (1)
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| CN (1) | CN102737808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525364A (en) * | 2014-12-19 | 2015-04-22 | 中国地质科学院郑州矿产综合利用研究所 | Magnetic system design method for improving action depth of permanent magnetic strong magnetic field and magnetic separation equipment |
| CN110605179A (en) * | 2019-10-16 | 2019-12-24 | 中南大学 | High-gradient magnetic separation experimental device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087534U (en) * | 1990-02-09 | 1991-10-30 | 陕西省地质矿产局西安探矿机械厂 | Permanent-magnet wet separation rotary ring type magnetic separator |
| JP2001276646A (en) * | 2000-03-28 | 2001-10-09 | Nippon Magnetic Dressing Co Ltd | Magnetic roller and magnetic separator using the same |
| CN100998965A (en) * | 2006-09-14 | 2007-07-18 | 李泽 | Method of setting permanent magnet for magnetic separation machine and permanent magnet construction member for magnetic separation machine |
-
2011
- 2011-04-16 CN CN2011100953333A patent/CN102737808A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087534U (en) * | 1990-02-09 | 1991-10-30 | 陕西省地质矿产局西安探矿机械厂 | Permanent-magnet wet separation rotary ring type magnetic separator |
| JP2001276646A (en) * | 2000-03-28 | 2001-10-09 | Nippon Magnetic Dressing Co Ltd | Magnetic roller and magnetic separator using the same |
| CN100998965A (en) * | 2006-09-14 | 2007-07-18 | 李泽 | Method of setting permanent magnet for magnetic separation machine and permanent magnet construction member for magnetic separation machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525364A (en) * | 2014-12-19 | 2015-04-22 | 中国地质科学院郑州矿产综合利用研究所 | Magnetic system design method for improving action depth of permanent magnetic strong magnetic field and magnetic separation equipment |
| CN104525364B (en) * | 2014-12-19 | 2016-09-21 | 中国地质科学院郑州矿产综合利用研究所 | Magnetic system design method for improving action depth of permanent magnetic strong magnetic field and magnetic separation equipment |
| CN110605179A (en) * | 2019-10-16 | 2019-12-24 | 中南大学 | High-gradient magnetic separation experimental device |
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Application publication date: 20121017 |