DEVICE FOR ADJUSTING WORKING CONDITIONS OF DREDGE MUD PUMP Russian patent published in 1994 - IPC

FIELD: hydraulic excavation. SUBSTANCE: device comprises air inlet into suction pipe and air pipe with valve. To reduce parameters of pump head, delivery and input power, to reduce noise, vibrations and hydraulic impacts, the pressure pipe has force cup with return valve on discharge union, the valve is installed outside of dredge superstructure and provided with remote control, pump suction pipe has holes equispaced along section perimeter, and circular header connected with air pipe at the top and with outside water at the bottom. EFFECT: improved design. 3 dwg