AIRLIFT FOR PULP LIFTING Russian patent published in 1994 - IPC

FIELD: mining. SUBSTANCE: airlift comprises pulp lifting column, air separator, air supply column, powder dispenser, pressure column, duct, actuating member, including annular pressure chamber, mining hydraulic giants, conical pressure chamber with hydraulic jet nozzle, branch pipes, protective casing ports. Chambers are arranged vertically with clearance and hydraulically connected to each other and to pressure chamber and power dispenser. Protective casing is fastened above chambers on pulp lifting column. EFFECT: higher efficiency in testing and mining of underwater formations. 2 cl, 3 dwg