Magnet block arrangement having an outwardly-directed field

Details Magnet block arrangement having an outwardly-directed field Magnet block arrangement having an outwardly-directed field

1987-10-28

1989-05-30

Rolla, Joseph J.

Classifying, separating, and assorting solids

Magnetic

Paramagnetic

209220, 209222, B03C 100

Patent

active

048348716

ABSTRACT:
A magnetic separator comprising a rotatable drum including an axis of rotation and a periphery comprising a plurality of magnet blocks. The magnet blocks are mounted and arranged as circular rings about the axis of rotation. The ith magnet block is magnetized in a predetermined direction defined by .psi..sub.i =-n.rho..sub.i where n is a positive number and .phi..sub.i is an angle described by a line from the center of gravity of the ith block to the axis of rotation and a predetermine radius vector. The spacing between neighboring centers of gravity of the magnetic blocks, expressed as a sector angle, is smaller than or equal to about .pi./2 (n+1).

REFERENCES:
patent: 3365599 (1964-01-01), Brzezinski et al.
patent: 3392432 (1968-07-01), Naumann
patent: 3455276 (1969-07-01), Anderson
patent: 3737822 (1973-06-01), Buus et al.
patent: 4199455 (1980-04-01), Estabrook

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