PNEUMATIC FLOTATION MACHINE

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FIELD : process engineering.SUBSTANCE : invention relates to dressing of minerals, particularly, to pneumatic flotation devices for processing of minerals containing nonferrous, ferrous, rare and noble metals as well as non-metallic minerals. This machine comprises the housing consisting of extended top and bottom parts composed of cylinders and interconnected by mid truncated cone-shaped section, central pipe arranged inside the housing extended part, feed, aerating and unloading appliances. Housing extended part top section and that of central pipe are composed of truncated cones diverged from bottom to top and fitted one in the other. Angle in inclination of cone every wall makes 10 to 30 degrees. Said inclined walls are arranged parallel with each other.EFFECT : higher yield of useful component into foam product, higher efficiency of the machine.3 cl, 1 dwg, 3 tbl