GB2059295A - A magnetic separator - Google Patents
A magnetic separator Download PDFInfo
- Publication number
- GB2059295A GB2059295A GB8028698A GB8028698A GB2059295A GB 2059295 A GB2059295 A GB 2059295A GB 8028698 A GB8028698 A GB 8028698A GB 8028698 A GB8028698 A GB 8028698A GB 2059295 A GB2059295 A GB 2059295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- conductor coils
- magnetic separator
- magnets
- separator according
- 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.)
- Granted
Links
- 239000006148 magnetic separator Substances 0.000 title claims abstract description 23
- 239000004020 conductor Substances 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 7
- 238000000605 extraction Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets
Landscapes
- Coils Or Transformers For Communication (AREA)
- Electrostatic Separation (AREA)
Abstract
A drum shaped magnetic separator for separating magnetisable and non magnetisable particles in a separating region in which there is a magnetic field, the separator comprising several magnets or magnet systems arranged in the same sense, the conductor coils (2) of the individual magnets being elongate, being arranged next to each other in the longitudinal direction of the axis (3) of the drum (1) and being matched approximately to the curvature of the drum (1). <IMAGE>
Description
SPECIFICATION
A magnetic separator
The invention relates to a magnetic separator, more particularly a drum-shaped magnetic separator designed to separate magnetizable and nonmagnetizable particles in a separating region in which there is a magnetic field in which the magnetic field produced by several magnets or magnet systems extends into a magnetically open field in the direction of the separating region and in which the magnets or magnet systems are arranged in the same sense and the conductor coils of the magnets are elongate.
In a proposed magnetic separator (PatentApplica- tion No. 44800/77) elliptical conductor coils of the magnets are so arranged that the longitudinal axes of the conductors coils run longitudinally of the drum. In this way an open field is produced in which opposite poles are formed between individual magnets or magnet systems and lead to a fairly large field line density and therefore to an increase in the magnetic forces parallel to the longitudinal axis of the drum system when there is the same number of magnets or magnet systems. Furthermore, this proposed embodiment and arrangement of the individual magnets or magnet systems makes it possible to achieve a special field line formation and make it possible to fill relatively large operating areas in a magnetic field in contrast to comparable magnets or magnet systems.
The invention seeks to improve this magnetic separator with respect to the distribution of magnetic fields and the throughput.
According to the invention there is provided a drum-shaped magnetic separator for separating magnetizable and non-magnetizable particles in a separation region in which there is a magnetic field in which the magnetic field produced by several magnets or magnet systems extends into a magnetically open area towards the separating region, and in which the magnets or magnet systems are arranged in the same sense and the conductor coils of the magnets are elongate wherein the elongate conductor coils of the individual magnets are arranged adjacent each other in the direction of the longitudinal axis of the drum, the conductor coils beng matched approximately to the curvature of the drum.
In this way the magnetic field width may be advantageously extended over the entire length of the drum. This makes it possible to load the magnetic drum optimally and therefore to provide increased material throughput. In addition, by adding ortaking away individual conductor coils, the magnetic field width may be varied as desired and thus the materials to be separated may be advantageously affected. The arrangement of elongate conductor coils on the magnetic separator, in accordance with the invention, therefore makes it possible in a very advantaeous manner to adapt the apparatus individually to the respective materials which are to be separated from each other.
The conductor coils may have windings which are elliptical or in race-track arrangement. This provides a particularly advantageous embodiment of the conductor coils.
The windings of the conductor coils may be arranged to have fairly large spacings at the outside in the region of the small radii of the ellipses. In this way, changing the radius of individual layers of the coil in the region of the small radii of the ellipses may result in control of the induction, causing a reduction in the magnetic forces in a very advantageous manner and these magnetic forces in turn effect simple mechanical extraction of the magnetic product.
The individual conductor coils may be approximately D-shaped. These conductor coils may be manufactured particularly simply and at a low cost.
The conductor coils may be arranged to be displaceable individually or as a whole in the direction of the periphery of the drum. The magnetic force field may then be matched particularly well to the special requirements of the materials to be separated.
The invention will now be described in greater detail, by way of example, with reference to the drawings, in which:
Figure 1 shows a drum-shaped magnetic separator in accordance with the invention in perspective view having ellipsoid conductor coils, and
Figure 2 shows a drum-shaped magnetic separator according to the invention in perspective view having D-shaped conductor coils.
As Figure 1 shows elliptical or race-track shaped conductor coils 2 are arranged in the drum 1 of a drum-shaped magnetic separator adjacent each other in the direction of the longitudinal axis 3 of the drum. The longitudinal axes of these conductor coils 2 run in the direction of the periphery of the drum.
These conductor coils which are super-conducting and rotated with respect to the conductor coils of the above described known separator by 90 have current passing through them in the same sense, as arrows 4 show.
This embodiment of the conductor coils 2 in a very advantageous manner achieves a particularly uniform magnetic field extending over the entire length of the drum. Not only does this mean that the magnetic field is used optimally but also that the drum shaped magnetic separator is loaded optimally. Furthermore, the conductor coils 2, which may be ironless or have an iron core, are matched to the curvature of the drum sleeve 1. This brings about a particularly uniform field strength in the whole of the range of action of the magnetic field produced by the conductor coils 2. The conductor coils 2 may be arranged also in a very advantageous manner either so as to be displaceable individually or as a whole in around the periphery of the drum.In this way the drum-shaped magnetic separator may be matched particularly well to the respective materials to be separated, more particularly with respect to the properties of the material and their composition. In addition, in this drum-shaped magnetic separator there is also the opportunity to change the magnetic field width by taking away or adding the conductor coils so that the respective materials which are to be separated from each other may be simply affected thereby. The winding 2' of the conductor coils 2 may also be arranged in a very advantageous manner, as
Figure 1 shows, to have fairly large spacings at the outside in the region of the small radii of the ellipses.
As a resultthe magnetic forces are reduced in the region of the small radii of the ellipses in comparison to the regions of the conductor coils between the focal point of the ellipses and these magnetic forces promote extraction of the magnetic product.
In addition, as Figure 2 shows, the conductor coils 5 may be made D-shaped in advantageous manner.
These conductor coils 5 are distinguished particularly bytheir simple and low cost manufacture.
Claims (8)
1. A drum-shaped magnetic separator for separ- ating magnetizable and non-magnetizable particles in a separation region in which there is a magnetic field, in which the magnetic field produced by several magnets or magnet systems extends into a magnetically open area towards the separating region, and in which the magnets or magnet systems are arranged in the same sense and the conductor coils of the magnets are elongate wherein the elongate conductor coils of the individual magnets are arranged adjacent each other in the direction of the longitudinal axis of the drum, the conductor coils being matched approximately to the curvature of the drum.
2. A magnetic separator according to claim 1, wherein the conductor coils are arranged in their longitudinal expanse to be substantially in the direction of the periphery of the drum.
3. A magnetic separator according to claim 2, wherein the longitudinal expanse of the coils runs transverse to the axis of the drum.
4. A magnetic separator according to claims 1,2 or 3, wherein the conductor coils have windings (2') which are elliptical or in race-track arrangement
5. A magnetic separator according to claim 4, wherein the windings of the conductor coils are arranged to have a fairly large spacing from each other at the outside in the region of the small radii of the ellipses.
6. A magnetic separator according to claim 1,2 or 3 wherein the conductor coils are approximately
D-shaped.
7. A magnetic separator according to any one of the preceding claims, wherein the conductor coils are arranged to be displaceable individually or all together in the direction of the periphery of the drum.
8. A magnetic separator substantially as described herein with reference to the drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2936661A DE2936661C2 (en) | 1979-09-11 | 1979-09-11 | Magnetic separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2059295A true GB2059295A (en) | 1981-04-23 |
| GB2059295B GB2059295B (en) | 1983-11-02 |
Family
ID=6080548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8028698A Expired GB2059295B (en) | 1979-09-11 | 1980-09-05 | Magnetic separator |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5681138A (en) |
| DE (1) | DE2936661C2 (en) |
| FR (1) | FR2464752A2 (en) |
| GB (1) | GB2059295B (en) |
| SE (1) | SE8006291L (en) |
| ZA (1) | ZA805577B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319625A (en) * | 2011-08-30 | 2012-01-18 | 北京矿冶研究总院 | High-efficiency down-flow type magnetic separator with groove body |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3131480A1 (en) * | 1981-08-08 | 1983-02-24 | Brown, Boveri & Cie Ag, 6800 Mannheim | SUPERCONDUCTIVE COIL |
| JPS6436550U (en) * | 1987-08-28 | 1989-03-06 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB233962A (en) * | 1924-09-24 | 1925-05-21 | Bernhard Wilden | Improvements in electromagnetic separators |
| DE897681C (en) * | 1949-12-23 | 1953-11-23 | Heinrich Dipl-Ing Spodig | Permanent magnetic collecting and adhesive device, in particular magnetic separator |
| US3575293A (en) * | 1969-04-24 | 1971-04-20 | Harold C Nelson | Method and apparatus for separating finely divided materials of different specific gravities |
| DE2650528A1 (en) * | 1976-11-04 | 1978-05-18 | Kloeckner Humboldt Deutz Ag | MAGNETIC CUTTER |
-
1979
- 1979-09-11 DE DE2936661A patent/DE2936661C2/en not_active Expired
-
1980
- 1980-09-05 GB GB8028698A patent/GB2059295B/en not_active Expired
- 1980-09-09 SE SE8006291A patent/SE8006291L/en unknown
- 1980-09-10 ZA ZA00805577A patent/ZA805577B/en unknown
- 1980-09-11 JP JP12538780A patent/JPS5681138A/en active Pending
- 1980-09-11 FR FR8019629A patent/FR2464752A2/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319625A (en) * | 2011-08-30 | 2012-01-18 | 北京矿冶研究总院 | High-efficiency down-flow type magnetic separator with groove body |
| CN102319625B (en) * | 2011-08-30 | 2015-01-21 | 北京矿冶研究总院 | Concurrent flow type groove magnetic separator |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2464752B2 (en) | 1984-09-21 |
| JPS5681138A (en) | 1981-07-02 |
| FR2464752A2 (en) | 1981-03-20 |
| DE2936661C2 (en) | 1986-06-05 |
| SE8006291L (en) | 1981-03-12 |
| DE2936661A1 (en) | 1981-03-26 |
| GB2059295B (en) | 1983-11-02 |
| ZA805577B (en) | 1981-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950905 |