Conference Proceedings
MINPREX 2000
Conference Proceedings
MINPREX 2000
Small Particle Eddy Current Separation
During conventional eddy current separation, a repulsive force is applied to metallic particles by placing them in a rapidly changing magnetic field generated by a spinning magnetic rotor carrying an arrangement of alternate magnetic poles. This method works effectively for larger non-ferrous metallic objects, such as aluminium cans, but as the metallic particles become smaller, the bulk repulsive force on the particles is increasingly replaced by a rotational torque. Therefore, for small metallic particles it makes sense to use particle rotation, rather than particle repulsion, to effect a separation. Eddy current separators using particle rotation are similar in construction to present separators, but are designed to produce a rotating field of essentially constant angular velocity and field strength. Practical and economic particle rotation eddy current separations are possible down to particle sizes of about 200 m, but separations, at probably uneconomic rates, can be carried out on particles as small as 50 m.
Contributor(s):
N R Allen
-
Small Particle Eddy Current SeparationPDFThis product is exclusive to Digital library subscription
-
Small Particle Eddy Current SeparationPDFNormal price $22.00Member price from $0.00
Fees above are GST inclusive
PD Hours
Approved activity
- Published: 1999
- PDF Size: 0.735 Mb.
- Unique ID: P200005039