HYDRAULIC CLASSIFIER Russian patent published in 1996 - IPC

FIELD: concentration of minerals. SUBSTANCE: hydraulic classifier has cylindrical-conical casing with pulp supply branch pipes, water supply pipes, sand discharge pipes and discharge chutes and is further provided with closed widening repurification chamber with sand opening, drain pipe vertically positioned in upper wall of repurification chamber and air- hydraulic aerators regularly positioned in staggered arrangement in lower part of sidewalls of repurification chamber along its axis. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 dwg