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

17m*3.6m*2.0m

(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

25m*2.0m*2.0m

(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*

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Q:What is the difference between a cutter suction dredger and a trailing suction dredger?
The work of a cutter suction dredger works through an agitator in the head of a straw and straw.
Q:The working principle of a trailing suction dredger
Suction ships to show all sizes of the mud tank capacity, general cargo capacity is 500 ~ 1000m3. minimum drag suction dredger construction at a depth of about 3 conditions. The maximum drag suction dredger digging depth can reach 3 to 35. The suction ship belongs to the ships in waves, considerable sea dredging sailing, and mud.
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 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.
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: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:Advantages and disadvantages of trailing suction dredger for trailing suction dredger
Therefore, the utility model is very suitable for the construction of canals and canals in ports or navigable ships. The disadvantage of a trailing suction dredger is that the bottom of the dredger is hard to dig
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: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.

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