Classifying – separating – and assorting solids – Magnetic
Patent
1990-08-15
1992-01-14
Hajec, Donald T.
Classifying, separating, and assorting solids
Magnetic
209219, B03C 124
Patent
active
050802348
ABSTRACT:
The eddy current separator apparatus disclosed herein employs first and second cylinders, each of which is provided with means for generating a circumferential series of radially directed magnetic poles of alternating polarity. The cylinders are mounted for rotation around parallel axes with an essentially vertical gap between them. A mixture of electrically conductive and non-conductive particles can be fed into the gap from one side. The cylinders are rotated synchronously in opposite directions with poles of opposite polarity facing across the gap, at a speed substantially higher than the speed of mixture feed. Electrically conductive non-magnetic particles are impelled by eddy currents generated by the magnetic flux projected across the gap by the faacing moving poles and can be received or collected separately from free falling non-conductive particles.
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patent: 4459206 (1984-07-01), Laithwaite
patent: 4743364 (1988-05-01), Kyrazis
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Hajec Donald T.
Pahl Jr. Henry D.
Walker Magnetics Group, Inc.
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