CSD-350 Cutter Suction Dredger

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

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Supply Capability:: 10 unit/month

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General Introduction

u This cutter suction dredger is designed to operate in sheltered inshore waters and under tropical climate conditions. Build under enterprise standard with reference to ZC standard.

u She is of all welded steel construction ,bottom plate 8 mm thickness and shell plating 6 mm thickness, frame distance 500 mm, with 2 fixed spuds on the aft ,ladder support A frame in the front and 3 hydraulic operated winches ,2 double bollards(fwd and aft) and 1 single bollard in the center on each side.

u The whole dredger is dismountable in road transportable sections.

u The engines and dredge pump are located in the center pontoon, the 2 side pontoons serve as fuel bunkers, ballast tanks and store.

u Engine room and pump section are accessible by watertight hatches

u Cutter shaft runs on roller type bearings in an enclosed shaft housing flooded with lubrication oil a lock oil tank to ensure a positive pressure inside the bearing housing is located on top of the wheelhouse.

u The spacious control cabin is ergonomically designed fitted on a raised platform with all around non obstructed view ,2 operators consoles containing engine instrumentation and controls for winches, dredge pump, suction and discharge pressure gauges, navigation light controls, airconditioned and well insulated .

u Below the control cabin is a changing room located with table, chairs and washbasin

u The underwater section of the dredger is protected with a marine coating system and cathodic protection for use in a saltwater environment。

TECHNICAL SPECIFICATION CSD250
No.	Item	Description	Remark
1.	General Principle
	(1). Overall Length	26m
	(2). Side Pontoon Size	17m
	(3). Main Pontoon Size	11.0m
	(4). Breadth	5.2m
	(5). Moulded Depth	1.6m
	(6). Mean Draft	1.0m
	(7). Dredging Depth	10m
	(8). Pumping Distance	1000m
	(9). Pump Flow Capacity	1400m³/h
	(10).Suction Pipe Dia	350mm	Out Diameter
	(11) Discharge Pipe Dia	350mm	Out Diameter

2.	Main Pontoon
	(1). Dimension	11m2.2m1.6m
	(2). Bottom Plate Thick	10mm	CCSB marine plate
	(3). Side Wall Thick	8mm	CCSB marine plate
	(4). Front and Rear	14mm	CCSB marine plate

3.	Side Pontoon
	(1). Dimension	17m1.5m1.6m
	(2). Bottom Plate Thick	8mm
	(3). Side Wall Thick	6mm
	(4). Front and Rear Thick	6mm

4.	Main Engine		Drive dredger pump only
	(1). Make	weichai
	(2). Model	8170	Marine Engine. Cummins is optional
	(3). Power / rpm	601Kw @ 1500 rmp
	(4). Fuel Consumption	85L/h
	(5). Cooling Style	Water Cooling

6.	Axle Generator		Driven by auxiliary engine
	Make	STANFORD
	Power / rpm	24Kw

7.	Harbor Generator		Drive hydraulic pump & axle generator
	Make	WEICHAI +STANFORD
	Power / rpm	24Kw
	Fuel Consumption	4L/h
	Cooling Style	Air Cooling
	Output Voltage	220V/ 380V

8.	Dredge Pump
	Make	SHIJIAZHUANG
	Model	250G-G
	Suction Pipe Diameter	300mm
	Discharge Pipe Diameter	250mm
	Head	65m
	Rpm	650rpm
	Water Flow Capacity	1200m³/h

9.	Gearbox
	Model	L620
	Ratio	2 : 1

10.	Cutter
	Style	Hydraulic Motor+ Planetary Gearbox
	Cutter Power	60kw
	Crown Diameter	900mm
	Cutter Out Diameter	1000mm
	Blades	5pcs	High manganese alloy
	Cutter Teeth	33pcs	High manganese alloy
	Rpm	0-10-30rpm

11.	Ladder Winch		Hydraulic Drive
	Winch Motor Brand	XINHONG	Sino-Italy Joint Venture
	First Layer Pull	4 Ton
	Wire Rope Dia	18mm
	Wire Rope Capacity	120m
	Wire Speed	0-20m/min

12.	Swing Winch		Hydraulic Drive
	Winch Motor Brand	XINHONG	Sino-Italy Joint Venture
	First Layer Pull	4 Ton
	Wire Rope Dia	18mm
	Wire Rope Capacity	120m
	Wire Speed	0-20m/min
	Quantity	2 sets

14	Spud
	Length	13m
	Diameter	325mm
	Weight	2200Kg	Each

15	Spud Cylinder
	Cylinder Stroke	2.0m
	Cylinder Dia	140mm
	Working Pressure	16Mpa
	Travel Speed	0.2m/s

17.	Anchor
	(1). Type	HHP Anchor
	(2). Weight	300Kg

18.	Operation Cabin
	(1). Operation Board	Control all dredger movement commands and monitor equipments running condition. PLC system from SIMENS
	(2). Adjustable Chair	For dredger master. Leather.
	(3). A/ C	One set
	(4). Lounge	First floor cabin has space for two persons rest.

19.	Hydraulic System
	A. System Introduction	Hydraulic system is designed to supply power for winches, cutter, spud cylinder. Hydraulic pump separately is driven by engine free end.
	B. Hydraulic Motor	From Sino-Italy Joint Venture, YINING. Excellent working performance and durable usage life.
	C. Hydraulic Pump	NANJING

20.	Painting Principle
	Introduction	Do sand blasting before welding. Use good quality marine paint with greater thickness. Paint system is 3 or 4 layers with minimum thickness of 400 micron on the below water line area

19.	Electrical System
	Introduction	All electrical components are from famous brand as Omron and CHINT. Equip overload protection box to control safety. Use high quality electrical marine type cables (smoke and halogen free).
20.	Navigation Tool
	(1). Elec-mag Compass	Equipped
	(2). VHF-Radiotelephone	Equipped

Q:Who knows what's the name of the biggest dredger in China?: Guangzhou Waterway Bureau has the largest grab ship, the maximum bucket capacity of 50, but the efficiency is not as good as the Shanghai Waterway Bureau fighting capacity of Xinhai 27 party round clam.Most of the ships I've seen before, as well as a dredge called a chain bucket dredger, are now out of date.

Q:What are the crew members on the dredge?: The dredge work generally is not very tired, after all, the mechanization of things, the need for artificial little ~ ~ for one is general and maintenance of turbine operation, as well as the ship fuel supply etc..

Q:The famous type of cutter suction dredger: The famous famous suction dredger is China's sky whale, (Tianjin River Navigation Bureau), sky Navigation Bureau, 5000kW and so on. At present, the world's largest is Luxemburg, Jan, De, Nul dredging group JDN8069.

Q:How much dredging can the 4000 side /h suction dredge dredge in one day? Soft silt: The pump in the cabin and the underwater pump are full load. The length of the pipeline is within 3 kilometers, and the depth is about -16 meters. According to the rate of 18 hours per day, the production rate is 61200 according to 3400.The actual amount should be between 45000 and 55000.

Q:Classification of trailing suction dredgers for trailing suction dredger: Trailing suction dredger is one of suction suction type. It sucks in mud by raking the head of the two side of the ship's hull or at the tail to work with mud and side navigation. Is the use of mud rake scarification, boat design sediment tank, tank volume said the size of the ship. A single to rake or harrow, are arranged on the ship or on both sides. Suction dredger is flexible, high efficiency, strong wind waves, suitable for coastal ports, the wide river and ship anchorage operation in large waves and without the cover of coastal and estuarine areas, should choose the self-propelled trailing suction dredger. Soil works suitable for loosening and less than clay hardness. The self-propelled boat is equipped with a mobile power unit (paddle machine) to drive the dredger.

Q:Who has the construction plan of dredger dredger after dredger dredging and dredging with dredger barge?: Is it a filling scheme for dredger? How about a suction dredger on the side of Qingzhou? Customer feedback is also OK, you can come and have a lookSpecific contact, see user name, basic data

Q:What is the working principle of a cutter suction dredger?: Adjust the transverse retractable cable winch, traverse speed and stop, to change the movement speed and cutting cutter position change in different sections. The mud pump is then pumped through the sludge line and the muddy water mixture is delivered to the designated blow in area. The cutter suction dredger by dredging machinery and equipment according to the design requirements of the excavation dredging area of rivers and lakes, and the dredged material through the mud pipeline transportation to dike back water side with fill; it is conducive to the expansion of cross-section, and it helps to prevent the foundation piping failure. It has been widely used in river and lake dredging works.

Q:3800m3 cutter suction dredger: The 3800m3 cutter suction dredger says 3800m3 of sediment can be dug per hour!I designed the dredge pump, the ship is generally named after dredging flow, but also by the flow of water named

Q:The working principle of a trailing suction dredger: The ship is equipped with one or several sets of centrifugal pumps, centrifugal pumps for absorbing water and mud from the bottom of the vessel, into the mud tank. These operations are carried out on the voyage, while air while digging, mud tank fill to throw mud mud area, through the Bilge mud. Handle cases

Q:Advantages and disadvantages of trailing suction dredger for trailing suction dredger: The drag suction dredger is often equipped with a lateral thruster in the bow, which has better handling performance. The anchor is not anchored or anchored by the cable during construction, so it has little interference to navigation

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