Eddy-Current Separation by Permanent Magnets. II. Rotating Disc Separators

Eddy-current separators can separate non-ferrous metals from other materials. In these separators, eddy currents are induced in metal particles by a changing magnetic field. The interaction between these currents and the magnetic field results in repulsive forces on the metals, which are so separate...

Full description

Saved in:
Bibliographic Details
Published in:Resources, conservation and recycling conservation and recycling, 1988-03, Vol.1 (1), p.3-17
Main Authors: Braam, B C, Van der Valk, H J L, Dalmijn, W L
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Eddy-current separators can separate non-ferrous metals from other materials. In these separators, eddy currents are induced in metal particles by a changing magnetic field. The interaction between these currents and the magnetic field results in repulsive forces on the metals, which are so separated. Part I presented the model calculations of the repulsive forces in separators with permanent magnets, such as the Vertical Eddy-Current Separator and the Rotating Disc Separator. In the latter the repulsive forces that can be exerted were optimized. In this part, the principles of operation of the Rotating Disc Separator are explained and the separation results for different material mixtures are presented using a Rotating Disc Separator that was recently built with Sm--Co magnets. 14 ref.--AA
ISSN:0921-3449