CSD-200 Cutter Suction Dredger

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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.

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 YS-CSD200P
No.	Item	Description		Remark
1.	General Principle
	(1). Overall Length	22m
	(2). Side Pontoon Size	14m
	(3). Main Pontoon Size	10.0m
	(4). Breadth	4.6m
	(5). Moulded Depth	1.6m
	(6). Mean Draft	1.0m
	(7). Dredging Depth	8m
	(8). Pumping Distance	1000m
	(9). Pump Flow Capacity	800m³/h
	(10).Suction Pipe Dia	300mm		Out Diameter
	(11) Discharge Pipe Dia	300mm		Out Diameter

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

3.	Side Pontoon
	(1). Dimension	14m1.2m1.6m
	(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	6160		Marine Engine
	(3). Power / rpm	300 Kw @ 1000rmp
	(4). Fuel Consumption	40L/h
	(5). Cooling Style	Water Cooling

6.	Axle Generator
	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	200G-G
	Suction Pipe Diameter	250mm
	Discharge Pipe Diameter	200mm
	Head	65m
	Rpm	1000rpm
	Water Flow Capacity	800m³/h

9.	Gearbox
	Model	FDL-320
	Ratio	1: 1

10.	Cutter
	Style	Hydraulic Motor+ Planetary Gearbox
	Cutter Power	55kw
	Crown Diameter	900mm
	Cutter Out Diameter	1000mm
	Blades	5pcs		High manganese alloy
	Cutter Teeth	28pcs		High manganese alloy
	Rpm	0-10-30rpm

11.	Ladder Winch			Hydraulic Drive
	Winch Motor Brand	NINGBO XULI
	First Layer Pull	4 Ton
	Wire Rope Dia	16mm
	Wire Rope Capacity	120m
	Wire Speed	0-20m/min

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

14	Spud
	Length	12m
	Diameter	325mm
	Weight	2200Kg		Each

15	Spud Cylinder
	Cylinder Stroke	2.0m
	Cylinder Dia	125mm
	Working Pressure	16Mpa
	Travel Speed	0.2m/s

17.	Anchor
	(1). Type	HHP Anchor
	(2). Weight	200Kg

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

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 YINING which is Italy-China Joint Venture Brand Excellent performance and 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. Fix anti-rust device inside and outside of pontoons.

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

21	Optional Equipments
	(1) Pump Booster		Increase pumping distance
	(2) Spud Carrier		Stroke-4meter
	(3) Concentration Meter
	(4)Flow Capacity Meter
	Pipeline
	(1). HDPE pipe		ID-285mm OD-315mm Thickness-15mm Length-11.5m/pcs
	(2). Rubber Hose		ID-300mm Length-1.2m
	(3). Floater		ID-315mm Length-1100mm OD-1100mm
	Quantity depends on real pumping distance

Q: The famous type of cutter suction dredger: MAN provides engines for the world's largest suction hopper dredger.

Q: What is the working principle of a cutter suction dredger?: To locate the pile as the center circle movement by sliding around the hull swing cutter knife and realize dynamic soil, can pump to thousands of meters away

Q: How much dredging can the 4000 side /h suction dredge dredge in one day? Soft silt: The "4000 party" per hour he refers to is under design conditions. If you are digging soft mud, the hourly rate is higher than 4000, and I now ship according to Holland IHC, originally designed to be 3500 parties, we call the 4500 party. In fact, if the excavation of soft silt, pipelines in 5 kilometers or so, we can produce more than one hundred thousand per day. The instantaneous yield can reach 7000 square hours per hour. I wonder what the power of your so-called 4000 party pump is

Q: Who has the construction plan of dredger dredger after dredger dredging and dredging with dredger barge?: Would dig into the mud barge, barge by suction dredger, using force pump suction dredger through pipelines on shore

Q: Does dredging dredger need relevant qualification?: This should be based on the requirements of your local department, which is not required in general

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: 3800m3 cutter suction dredger: 3800m3 bucket wheel dredger is at the end of the last century according to the Ministry of transportation "based on domestic design and construction, the introduction of equipment key technology policy, the Yangtze River Waterway Bureau presided over the development of construction, Shanghai 708 Institute of design, Wuchang shipyard built China's first inland new dredger. The ship's key power equipment, dredging equipment, hydraulic systems were provided by German SKL company, United States Ellicotte (Aili, Kurt) company, the United States Dennison hydraulic company. This ship has been officially delivered to the Yichang Waterway Engineering Bureau of the Yangtze River. The name of vessel is No. 1.Bucket wheel cutting device in the river near the mouth of the soil suction, and by rotating the bucket wheel by cutting soil and water into high concentration mud, directly transported to the suction suction head of the top tube, rely on the suction centrifugal pump, the suction pipe has certain vacuum. The mud suction head, suction tube at the top end of the suction pipe, through the mud pump pressure after the mud through the mud discharging pipe into the mud barge or transported to the mud field. Through positioning piles, positioning piles, landing gear and traversing winch, the positioning of dredger, longitudinal forward movement and lateral swing of ship are achieved, and the purpose of continuous excavation of river bed soil is achieved.

Q: Who knows what's the name of the biggest dredger in China?: Tianjin Waterway Bureau of the pumping strength slightly stronger its name to "day" at the beginning of the word, is the largest dredger and Tianqi Tianlin, nominal production in my impression is 4200m /h fand the two sister ship, is currently the largest dredger.

Q: What is the difference between a cutter suction dredger and a trailing suction dredger?: TSHD is installed through the chain of dredge bucket will be dug out of the bottom mud, stored on a ship or barge dredger edges.

Q: What are the crew members on the dredge?: The tonnage of dredger is large and small, and the dredging method is also divided into many kinds, so it can not be generalized.

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