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|
|Year built, Builder||1985, Split|
|Length overall||80,49 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):|
|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.|
|Endurance of TSHD||30 days|
* 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.