DEVICE FOR PREPARATION OF PULP TO FLOTATION AND FROTH SEPARATION Russian patent published in 1995 - IPC

FIELD: concentration of mineral resources. SUBSTANCE: device uses body 1 with cylindrical chamber 2 and tapered bottom 3, pulp feed branch pipe 6 and sand discharge branch pipe 7 located in the bottom part of body 1, tangential water supply branch pipes 8, and drain chute 9 and hermetically sealed housing 21 with air discharge branch pipe 11 installed in the top part of body 1; the apparatus is provided with closed diverging cleaner-cell chamber 28 with sand port 31, vertically installed drain pipe 30 in its upper wall and pneumohydraulic aerators 34 uniformly staggered in the bottom part of the side walls of cleaner-cell chamber 28 along its axis; sand discharge branch pipe 7 is installed perpendicularly to the axis of body 1 and connected to the narrow end of cleaner-cell chamber 28, sand port 31 is made in the bottom part of the wide end of cleaner-cell chamber 28, and pneumohydraulic aerators 34 are directed towards sand port 31 and inclined downwards. Located inside the body are cylindrical rings with diameters decreasing from top to bottom, plates radially installed on the external side of the rings, tapered shell positioned in the bottom part of the body, and a cylinder secured to the hermetically sealed housing, installed inside the cylinder in a spaced relation and coaxially with it is a deflector made with an annular chute in the bottom part and a shoulder in the center of the annular chute; the surface of the annular chute is smoothly conjugated with the shoulder, the water feed branch pipes are installed tangentially, and the air discharge branch pipe is located in the top part of the hermetically sealed housing. EFFECT: improved design. 2 cl, 2 dwg