SUCTION DREDGE Russian patent published in 1995 - IPC

FIELD: hydraulic equipment. SUBSTANCE: suction dredge includes floating mean with load-lifting member with milling ripper. Drive shaft and paddles of the milling ripper of load-lifting member are hollow with ripper paddle being wedge-type. Holes are arranged in back walls of the paddles. Drive shaft is open and is communicated with atmosphere on the side of the drive. Drive shaft is communicated with bottom hole through openings in back walls of milling ripper paddles. EFFECT: improved arrangement allowing one to increase productivity at the expense of decreased forces in loosening deposit, decreasing specific weight of slurry caught by the dredge, decreased pressure loss in slurry line. 4 dwg