FIELD: concentration of ores. SUBSTANCE: invention relates to device designed for separation of precious metals and other heavy minerals from bearing rocks and can be used at processing of prospecting samples, dressing and retracting of placer and mineral raw materials. Proposed centrifugal separator has rotation conical bowls and drive. Two or more rotating conical bowls of different diameters with ring riffles are installed one over the other on one axle of rotation being driven by one drive at different speeds. Second bowl has accelerating device. Drive consists to cup with drive shaft and pulley with V-belt drives. Pulleys differ in gear ratios. EFFECT: increased capacity per area unit. 1 dwg
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