HYDRAULIC SIZE SCREEN Russian patent published in 1997 - IPC

FIELD: mineral dressing. SUBSTANCE: lower base of charging arrangement of size screen is located at the depth of 0.7-1.0 of the height of cylindrical part of the casing and provided with a curvilinear diffuser and a dome, forming surfaces of diffuser and upper part of the dome being of Gaussian curve shape. Forming surface of lower part of the dome corresponds to hyperbola-type curve turning into parabola-type curve. Arrangement for feeding a washing liquid has cylindrical-conical shape, inner cylindrical surface of which together with outer cylindrical part of size screen casing form annular channel eccentrically positioned in relation to cylindrical surface of size screen casing. Dome is installed free to move along charging arrangement axis in respect to its outlet opening. EFFECT: improved design. 2 cl, 2 dwg