INSTALLATION FOR VACUUM FLOTATION Russian patent published in 1995 - IPC

FIELD: purifying waste. SUBSTANCE: installation has flotator, unit for discharging flotation sludge, tank for initial water, and tank for purified water. The cylindrical housing has conical cover and bottom and coaxially mounted inner cylinder which is connected with the discharging pipe through a bell-mouth. Gas dispergators are positioned at the bottom part of the flotator housing. The supplying branch pipes are provided with filtering members which are positioned outside of the housing. Hopper and branch pipe are positioned at the top part of the flotator cover. The branch pipe is connected to the unit for discharging flotation sludge. The tank for purified water is provided with an overflow pipe which is positioned below the edge of the tank for initial water. The top of the bottom of the flotator is positioned above the edge of the tank of initial water. EFFECT: enhanced efficiency. 2 dwg