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  • Hopper dredger "Belomorskiy"

    project 469

    Type: Twin-screw, self-propelled trailing suction hopper dredger dragging suction pipes equipped with hydro-scourers, bow thruster.
    Designation: Dredging job with carriage of ground in hold for unloading either by opening of 14 single bottom doors in row (seven doors portside and seven doors starboard side), or using self discharger (pumps) for deposition of pulp through the sludge line at the distance up to 700 meters with height of stack place up to 4 meters.
    Allowed weather conditions: wind force up to 5 Beaufort scale with max height of wave 1,75 meters (pitching) or 1,25 meters (rolling).

    Russian Register class KM L1 hoper dredger
    Ice class IA
    Year built, Builder 1985, Split
    Length overall 80,49 m
    Beam 15,10 m
    Depth 5,60 m
    Max Draught at dredging work (Loaded) 5,2 m
    Light draft  bow 2,24 m
    Light draft  aft 3,48 m
    Deadweight summer 2044 t
    Gross tonnage 2628 rt
    Net tonnage 788  rt
    Hopper capacity (full loaded) 1304 cbm
    Hopper capacity (up to low level overflow) 750 cbm
    Suction pipe diameter 600 mm
    Discharge pipeline diameter 600 mm
    Dredging pump (number and ouput, h.p./kw) 2 * 340/250
    Dredging capacity (max) * 1000 cbm per hour *
    Pumping capacity for deposition of pulp through the sludge line ** 700 cbm per hour **
    Max Dredging depth 25 m
    Min Dredging depth 5,5 m
    Min required Length of dredging area 500 m
    Min required area for one hundred eighty degrees turn 140 m
    Speed loaded 9,0  knots
    Speed in ballast 10,0  knots
    Main engines MAN&BV 6S28 LU-4
    Number x output 2 * 1510 h.p.
    Recommended Oil MDO Dist DMB (ISO 8217/1996)
    Fuel consumption (daily):  
      Sailing 9 t
      Dredging 7,78 t
      Deposition through the sludge line 7,78 t
      Stoppage during dredging job 1,49 t
      Idle staying 0,827 t
    Bunker capacity 390 t
    Fresh water capacity 120 t
    Bow thruster 350 h.p.
    Crew 20 persons
    Endurance of TSHD 30 days
    Remarks :
    * Dredging capacity depends on type of soil to be dredged.
    ** Pumping capacity for deposition of pulp through the sludge line depends on length of line as    well as of height of stack place.
    Rambler's Top100