High-intensity magnetic separator
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United States of America Patent
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Sep 24, 1991
Grant Date -
N/A
app pub date -
Apr 24, 1990
filing date -
May 2, 1989
priority date (Note) -
Expired
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Abstract
A high-intensity magnetic separator for separating paramagnetic particles from non-magnetic particles comprises a rotor including a shaft and a stack of alternating ring-shaped pole pieces and permanent magnets arranged on the shaft, the pole pieces and the permanent magnets having substantially equal diameters. To increase the service life of the rotor without noticeably reducing its performance, the permanent magnet is peripherally covered by a layer of ceramic material having a thickness of less than 50 .mu.m.
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