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: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: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
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: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?
Shanghai Waterway Bureau trailingsuction ship strength slightly, most of its name to "Xinhai" at the beginning, the Phoenix as the representative of the Xinhai tank volume is about 16000m the ship should be fand the largest and most advanced tshd. To say that the largest is the new sea lion, but the head is large, inefficient, difficult to enter the stream.
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: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: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:Does dredging dredger need relevant qualification?
This should be based on the requirements of your local department, which is not required in general
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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