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By optimizing the effective magnetic force with a new magnetic circuit design (US. Patent 5,636,748), enhancing conventional designs, and using powerful rare-earth magnets, a new generation of high-intensity drum separators is now available. Several basic magnetic strength versions are standard. Although a drum separator is not as strong as a maximum strength roll separator, it can be used to upgrade previous state-of-the-art drum separator applications, which now require stronger magnetic forces. Magnetic forces matching or exceeding those of other medium strength drum separators are produced at a substantially lower cost.
Operation Principle
Like other drum separators, the magnetic yoke is positioned stationary inside a rotating shell (made of a nonmagnetic material such as stainless steel). In the Inprosys® Magnetic Dry Drum Separator, the yoke is not only adjustable with regards to the angular position, but the distance between the yoke and the shell can also be changed.
Dry process separators have either a top feed system using a special roll feeder with slide chute, or a vibratory feeder. The feed may also be presented as a curtain, falling adjacent to the shell periphery.
Applications
Established applications cover hematite and martite iron ores, garnet upgrading, ilmenite ore, "black sand" processing, pyrrhotite removal, and fine grinding media particle removal. Studies are in progress for material processing less magnetic materials and minerals.
Particle Size Range: 100 mm (4") to 0.05 mm
| 41cm (16") Diameter Drum |
Process Width
cm(in) |
20
(8) |
25
(10) |
50
(20) |
100
(40) |
150
(60) |
Height mm
(in) |
1448
(57) |
Width mm
(in) |
457
(18) |
685
(27) |
1143
(45) |
2286
(90) |
3430
(135) |
Depth mm
(in) |
813
(32) |
Weight kg
(lb) |
182
(400) |
227
(500) |
341
(750) |
455
(1000) |
568
(1250) |
Power kW
(hp) |
0.37
(1/2) |
0.55
(3/4) |
1.11
(1- 1/2) |
1.48
(2) |
| 61cm (24") Diameter Drum |
Process Width
cm(in) |
20
(8) |
50
(20) |
100
(40) |
150
(60) |
Height mm
(in) |
940
(37) |
Width mm
(in) |
710
(28) |
1016
(40) |
1524
(60) |
2032
(980) |
Depth mm
(in) |
1010
(43) |
Weight kg
(lb) |
275
(600) |
455
(1000) |
682
(1500) |
1000
(2200) |
Power kW
(hp) |
1.48
(2) |
3.7
(5) |
5.6
(7 1/2) |
7.4
(10) |
* All measurements are approximate. Dimensions and weights can change with different feeders and magnet configurations respectively. Also each machine is built for each particular application. Modifications can be made to insure ideal use and placement.
Standard Configurations
Starndard models have 6 magnetic poles in an axial configuration.
Currently there are two different drum diameters available: 41 cm (16"), and 61 cm (24"). Process widths vary from 20 cm to 1.5 meters (8" to 60").
Drum separators may be single modules or stacked in two or more stages. Combinations of different size drum diameters are also possible.
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