CONTINUOUS CHARGE SHOTCRETE MACHINE Russian patent published in 1998 - IPC

FIELD: equipment for applying layer of compacted concrete on surface by means of air. SUBSTANCE: shotcrete machine has closed vibratory hopper with charging funnel and bell-shaped valve with tie-rod and rocker arm, counterweight, ejector with hose and nozzle provided with water supplying unit. Reducer with pressure gage and three-way cock are mounted at air supply line for supplying air into vibratory hopper. EFFECT: increased efficiency and provision for continuous charging of working chamber without stopping of shotcrete machine. 1 dwg