FLOTATION PNEUMATIC COLUMNAR MACHINE Russian patent published in 1999 - IPC

FIELD: concentration of minerals, in particular, processing of mineral raw materials of wide range of particle sizes, including ferrous and nonferrous, rare and noble metals, as well as nonmetallic minerals. SUBSTANCE: flotation machine has housing with upper widened part and lower part, feeding and discharge devices, aerators and froth collector. Telescopic chamber is positioned in widened part of housing and stabilizing device is positioned within telescopic chamber. Telescopic device is made in the form of inverted hollow cone mounted for displacement in vertical plane. Diameters of inverted cone base and telescopic chamber are determined by mathematical expression. EFFECT: increased efficiency and selectivity of flotation process, stabilized operation of machine for wide range of raw materials. 3 cl, 1 dwg, 1 tbl