Khd Humboldt Wedag Ag

Hans G Schnabel

Karl-Heinz Unkelbach

Nicolae Marinescu

Marlene Marinescu

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).

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Bornheim, Germany

Hans G Schnabel