CENTRIFUGAL CONCENTRATOR Russian patent published in 1998 - IPC

FIELD: mining industry, benefaction of mineral materials by density to extract heavy native metals, predominantly gold and platinoids. SUBSTANCE: given centrifugal concentrator has rotor in the form of internal and external truncated cones installed concentrically and put of shafts of reduction gear that ensures their rotation with own speeds. External cone has through holes on side of smaller base and is fitted with circular threshold on side of bigger base. Ring slit where agitators in the form of fingers put on end face of internal cone are positioned is located between circular threshold and end face of internal cone. Circular threshold is manufactured in the form of truncated cone which smaller base is equal or smaller than bigger base of internal cone. EFFECT: enhanced efficiency of extraction of heavy minerals predominantly carrying noble metals from ores and placers including fine fraction. 1 cl, 1 dwg