DEVICE FOR THICKENING AND CLARIFICATION OF SUSPENSIONS Russian patent published in 1997 - IPC

FIELD: devices where thickening and clarification processes are combined with reverse pulse filtration process. SUBSTANCE: one or more filtering modules partially immersed in fine particle suspension in open vessels or reservoirs. Suspension is filtered in these open vessels or reservoirs by reverse pulse by means of filtering modules. Filtering module has one or more vertical hollow tubular filters operating in parallel, device for supply of liquid or air to filtering module and discharge of liquid and air during filtration process; this device is common for all filters. Module includes plate which holds tubular filters and cover which easily opens and tightly fay to plate in closed position. Cover is also provided with connections for supply and discharge of liquid and air. EFFECT: enhanced efficiency. 5 cl, 2 dwg