METAL-CONTAINING WASTE PROCESSING APPARATUS Russian patent published in 1997 - IPC

FIELD: extraction of metals from solid wastes. SUBSTANCE: apparatus has pipe inclined in the direction of advancement of wastes and treated sludge lifter. Pipe is provided with charging hopper and discharge funnel and is mounted on two adjusting supports. Pipe is connected with accumulator. Metal-containing solution discharge branch pipe is mounted on upper end of pipe below charging hopper level. Auger is mounted within pipe on guide bearings. One guide bearing is attached on end wall of pipe and other guide bearing is fixed on suspension, which is rigidly connected with pipe body. Auger is connected with electric engine. Lifter is formed as centrifuge with multiple-thread helical blade. Centrifuge is deepened into accumulator by means of bearing-type fastening support and is connected with electric engine through reducer having driven gear fixed on outer side of centrifuge casing. Inner ring is positioned in upper part of centrifuge and connected with centrifuge body. Guide bearing is mounted on inner ring. Acid mixture sprayer pipe is introduced into centrifuge through guide bearing. Centrifuge is connected with treated sludge collector through openings in centrifuge body adjacent to upper ends of blades. EFFECT: increased efficiency, simplified construction, wider operational capabilities and enhanced reliability in operation. 2 dwg