Effluent belt filter - which applies suction to the collection vessels and includes a screw to remove the solids

Abstract

Abstract The equipment consists of a filter cloth formed into a closed loop and moving around a course, in one area of which filtration occurs and in another area cake removal occurs. A filtrate receiver is placed below the filter area and a sediment collection area is placed under the cleaning area. Cleaning is achieved by blowing a gas under pressure across the filter cloth. The additions to the original design comprise (1) a suction apparatus to lower the pressure in the filtrate receiver, (2) a suction apparatus associated with the sediment collection vessel and (3) a helicoidal screw, which is placed in the base of the sediment collection vessel to move the solids toward an outlet the base of the vessel being pierced by holes covered by a grill to remove the liq. squeezed out of the sediment. The vessel is connected to the outlet through a conical section which causes the sediment to be further compressed. The filtration efficiency is increased due to the lowering of the pressure in the filtrate receiver. The fine liq. droplets in suspension ejected by the filter cloth are removed by the suction apparatus associated with the sediment collection vessel. Increased drying of the sediment is achieved due to the screw and to the compression of the sediment in the cone linking the collection vessel to the outlet.

Inventors

No inventors recorded.

Bibliographic Details