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4500m3 Trailing Suction Hopper Dredger Main particulars: Loa about 94.45 m Lbp 88.80 m B 18.00 m D 7.50 m Design draft 6.00 m Operation draft(dredging condition) Design load capacity 5000 t Operation load capacity(dredging condition) Light load displacement 2477 t Operation displacement 94 Max. dredging depth(below light water line) 25 m M/E power 2×2206KW(2×3000PS) Speed ≥ 12kn Complement 27 P dredge pump:2 sets A、dredge pump model IHC HRLD 123-30-70 Pump capacity 9000m3/h Total head 18 m Speed 360r/min Shaft power 575KW Suction pipe diameter Dn750mm Discharge pipe diameter DN700mm B、D/E model:KTA38-P1100 Cummins Power 746KW Speed 1600r/min 3、Jet pump:2 sets The vessel is equipped with two high pressure jet pump for high pressure jet water to the draghead during the dredging and dilute jet water of hopper when self-empty. jet pump spec.: A、Model: OTS300-560A Pump capacity 1900m3/h Total head 70 m Speed 1500r/min Shaft power 530 KW Suction pipe diameter Dn400mm Discharge pipe diameter DN300mm B、D/E model: TBD604BL6 Power 530 KW Speed 1500r/min 4、Other equipment: A、Main gen. set（CCFJ250）:3sets D/E model: TBD234V8 Rated power: 275Kw Rated speed: 1500rpm generator model: HCM4F spec: 250Kw x AC400V x 50Hz B、:Emer. gen. set(CCFJ90): 1set D/E model: 6135AD Rated power: 103.5Kw Rated speed: 1500rpm Generator model: MP-H-90-4 Spec.: 90Kw x AC400V x 50Hz C、Steam boiler: Model: 2YF0.5/70-0.7 Type: vertical oil fired exhaust gas steam boiler Heating area: 97M2 Work pressure: 0.7MPa Steam capacity: 350-450Kg/h 5、dredging machinery: Dredging machinery is the main working machinery on the vessel.It includes special dredging equipment, discharge equipment and hydraulic system which supporting the dredging equipments on the vessel one set of electrical crane. The main equipments are as follows: Two sets of dredge pump Two sets of suction pipe including two drag head Two sets of bend gantry, intermediate gantry and drag head gantry Hydraulic winches:4 sets of 120KN hydraulic winch,2sets of 240KN hydraulic winch 22 sets of hopper door 1 set of overflow ladle 1 set of overflow door Two sets of production meter and suction tube positioning monitor One set of dredge pump suction pipe system, which can be used in parallel One set of self-empty pipe system One set of high pressure jet water pipe Totally 21 hydraulic gate valve and butterfly valve for suction, discharge, self-empty and high pressure jet water Hydraulic system:2 set of hydraulic power pack, kind of valve block, oil tank and cylinder etc