CSD-350 RM Cutter Suction Dredger System 1

CSD-350 RM 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.

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. 2 anchor boom 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 CSD350
No.	Item	Description		Remark
1.	General Principle
	(1). Overall Length	36m
	(2). Side Pontoon Size	25m
	(3). Main Pontoon Size	17.0m
	(4). Breadth	7.2m
	(5). Moulded Depth	2.0m
	(6). Mean Draft	1.2m
	(7). Dredging Depth	15m
	(8). Pumping Distance	1500m
	(9). Pump Flow Capacity	3000m³/h
	(10).Suction Pipe Dia	500mm		Out Diameter
	(11) Discharge Pipe Dia	500mm		Out Diameter

2.	Main Pontoon
	(1). Dimension	17m3.6m2.0m
	(2). Bottom Plate Thick	10mm		CCSB marine plate
	(3). Side Wall Thick	8mm		CCSB marine plate
	(4). Front and Rear	16mm		CCSB marine plate

3.	Side Pontoon
	(1). Dimension	25m2.0m2.0m
	(2). Bottom Plate Thick	10mm
	(3). Side Wall Thick	6mm
	(4). Front and Rear Thick	6mm

4.	Main Engine			Drive dredger pump only
	(1). Make	SINO-Petrol JICHAI ENGINE
	(2). Model	8190ZLC		Marine Engine
	(3). Power / rpm	720Kw @ 1450 rmp
	(4). Fuel Consumption	130L/h
	(5). Cooling Style	Water Cooling

5.	Auxiliary Engine			Drive hydraulic pump & axle generator
	(1). Make	SINO-Petrol JICHAI ENGINE
	(2). Model	6190ZLC		Marine Engine
	(3). Power / rpm	380Kw @ 1000 rmp
	(4). Fuel Consumption	60L/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	350G-GH
	Suction Pipe Diameter	400mm
	Discharge Pipe Diameter	350mm
	Head	65m
	Water Flow Capacity	3000m³/h

9.	Gearbox
	Model	L900
	Ratio	3.0 : 1

10.	Cutter
	Style	Hydraulic Motor+ Planetary Gearbox
	Cutter Power	150kw
	Crown Diameter	1400mm
	Cutter Out Diameter	1500mm
	Blades	5pcs		High manganese alloy
	Cutter Teeth	28pcs		High manganese alloy
	Rpm	0-10-30rpm

11.	Ladder Winch			Hydraulic Drive
	Winch Motor Brand	XVLI		Sino-Italy Joint Venture
	First Layer Pull	6 Ton
	Wire Rope Dia	22mm
	Wire Rope Capacity	120m
	Wire Speed	0-20m/min

12.	Swing Winch			Hydraulic Drive
	Winch Motor Brand	XVLI		Sino-Italy Joint Venture
	First Layer Pull	6 Ton
	Wire Rope Dia	20mm
	Wire Rope Capacity	120m
	Wire Speed	0-20m/min
	Quantity	2 sets

13.	Anchor Boom Unit			Hydraulic Drive
	Winch Motor Brand	XVLI
	First Layer Pull	4 Ton
	Wire Rope Dia	18mm
	Wire Rope Capacity	100m
	Wire Speed	0-20m/min
	Boom Length	12m
	Boom Diameter	219mm

14	Spud
	Length	18m
	Diameter	550mm
	Weight	4900Kg		Each

15	Spud Cylinder
	Cylinder Stroke	2.5m
	Cylinder Dia	160mm
	Working Pressure	16Mpa
	Travel Speed	0.2m/s

16.	Deck Crane
	Loading Capacity	3Ton
	Boom Turning Radius	3.5m

17.	Anchor
	(1). Type	HHP Anchor
	(2). Weight	500Kg

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	First floor and second each 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 and anchor boom. Hydraulic pump separately is driven by auxiliary engine.
	B. Hydraulic Motor	Sino-China joint venture brand YINING as our hydraulic winch motors brand as its 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

21.	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).
22.	Navigation Tool
	(1). Elec-mag Compass	Equipped
	(2). VHF-Radiotelephone	Equipped

24	Optional Equipments
	(1) Pump Booster		To increase pumping distance
	(2) Spud Carrier		Stroke 4m
	(3) Concentration Meter
	(4) Flow Capacity Meter
	Pipeline
	(1). HDPE pipe		ID-450mm OD-490mm Thickness-20mm Length-12m/pcs
	(2). Rubber Hose		ID-450mm Length-1.5m
	(3). Floater		ID-480mm Length-1300mm OD-1300mm
	Quantity depends on real pumping distance

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:Does dredging dredger need relevant qualification?: But if the local government regulations must be legitimate formal dredging project, estimated to need to apply for a ship's certificate, it is equivalent to a person's identity card! If you need Qingzhou Wynn mine, you can go through the whole process, the relevant costs to consult manufacturers.

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 "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:Classification of trailing suction dredgers for trailing suction dredger: A single suction dredger rake or harrow, are arranged on the ship or on both sides.

Q:What is the difference between a cutter suction dredger and a trailing suction dredger?: Extend the straw to the bottom of the water, turn on the mixer, and stir up the mud at the bottom of the water. Then suck the mud out of the pipe and send it to the site by the pipe.

Q:What is the working principle of a cutter suction dredger?: The working principle of cutter suction dredger: to locate the pile as the center, swing to dredge, forward, like walk, another piece of steel columns alternately changing piles, cutter dredging process fanned forward. The operation of the cutter suction dredger can be completed continuously, such as dredging, transporting mud and unloading mud. It is a kind of dredger with high efficiency and low cost.

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:Advantages and disadvantages of trailing suction dredger for trailing suction dredger: In dredging, sediment laden with large amounts of water is transported to the dumping area, thereby affecting production. The suction boat can be used in infrastructure dredging and maintenance dredging, but not in narrow water areas

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