Introduction of Sea Sand Mining Dredger
Sea sand mining dredger has broad range of applications in operations the rivers and lakes for the dredging, channel excavation. In exceptional circumstances a cutter suction dredger cutter installed on the high-power devices, can be excavated without blasting rocks such as basalt and limestone strata.With characteristics of high efficiency, large output up to several thousand cubic meters per hour; the sand, or crushed rock material to rely on a strong driving force through the mud pumps and mud pipeline, pumping out a few kilometers outside.
1). Dredger and pontoon technical specification
Water flow 2500 m3/h
Solid sand capacity 500 cbm/h
Max. dredging depth 13 m
Discharge distance 1700 m
Average draught 1.7m
Dia. discharge/suction pipe 350mm/300mm 14/12inch
LOA 31m cutter head length is included
Dredger after assembly 23*7.5*2.5m Length* width* depth,
Engine room pontoon 13.75*3.5*2.5m Length* width* depth 1 pc
Side pontoon 20*2*2.5m Length* width* depth 2 pcs
Structure Can be dismantle and assemble at working place
2). Main engine and auxiliary engine information
a. Cummins engine on dredger are as below:
Main engine power&type 596KW/811HP Cummins engine 1set
Auxiliary engine power 224KW/305HP Cummins engine 1set
Total power 820KW/1116HP
b. or DEUTZ MAN-MWM engine are as below
Main engine power&type 600KW/816HP MAN-MWM engine 1set
Auxiliary engine power 222KW/301HP MAN-MWM engine 1set
Total power 822KW/1117HP
3) Cutter head specifications
Cutter diameter 1500mm with replaceable teeth
According to water flow of the dredging pump, we calculate the diameter of the cut head; only the best cutter head diameter can provide the best capacity of the sand.
Cutter type Crown-like
Cooling system Water cooling
Cutter speed in rpm 10/20/30R/min
Motor power 80KW/109HP
Motor quantity 1 pc
Cutter teeth quantity 30 pcs
Cutter teeth material ZGMn13
Cutter blade quantity 5 pcs
Cutter blade material ZGMn13