CSD-250 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 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

11m*2.2m*1.6m

(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

17m*1.5m*1.6m

(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

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Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:How much dredging can the 4000 side /h suction dredge dredge in one day? Soft silt
The content of dredger dredging is generally 15 - 25%, 4000 way water flow you can count themselves, can use Baidu Search Xintuo heavy machinery, specializing in the production of dredger, dredging, pumping sand and other equipment, gold rush ship products exported to Africa and South Asia and other countries and regions
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: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: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: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:Does dredging dredger need relevant qualification?
I can do it for you or not! No, oh, no!
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
Q:What are the crew members on the dredge?
But in general, the dredger crew responsible for the work can be divided into: navigation, communication and work positioning on the ship, electrician, turbine, maintenance, and operation personnel (dredging) and special equipment (such as grab dredger crane and grab operation, cutter suction, suction dredger winch, water pump operation etc.).
Q:What is the working principle of a cutter suction dredger?
Construction principle of cutter suction dredger:The dredger is in place, the steel pile excavation construction method, horizontal positioning dredging and filling, it is with a fall in the channel center line of the main hull positioning pile as the center of the rotation, the role of the reamer for traversing on lateral swing in the channel width, the construction method of excavation section of soil layer cutting cutter.
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.

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