FLOATATION MACHINE Russian patent published in 2001 - IPC

FIELD: floatation of pulp. SUBSTANCE: the floatation machine has a chamber with a bottom and walls, aeration unit, a plate projections on the lateral surface contracting upwards is installed on the bottom under the impeller. Part of the chamber bottom located around the stator outer surface is made with a slope of 35 to 50 deg. The upper part of the bottom inclined surface joins the chamber wall above the upper part of the aeration unit. The inclined surface may be provided with projections. EFFECT: enhanced efficiency of floatation and enhanced service life of the floation machine. 2 cl, 1 dwg