FIELD: mining industry; gravitational concentration of sands of placer deposits; technogenious placers and tailing ponds; extraction of gold from pulp over inclined plane. SUBSTANCE: proposed concentrator includes chute and magnetic system mounted under it for motion in parallel with surface of chute bottom. Magnetic system is made in form of monopolar magnetic strips alternating in polarity along longitudinal axis of chute and mounted on magnetically conducting yoke. Magnetically conducting bottom of chute is provided with inserts made from nonmagnetic transversal strips; distance between them is equal to width of magnetic strips. EFFECT: enhanced efficiency due to complete use of magnetic field energy. 4 dwg
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