cutter suction dredger for river sand dredging lake channel land reclamation
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cutter suction dredger for river sand dredging lake channel land reclamation
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2016-07-05
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Machinery, Mold & Fastener
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Machinery - relative Selling Leads or Buying Leads
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China
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Offer to sell
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JLCSD series dredgers can apply to most kinds of geologic structures and can be widely used in mineral digging, port dredging and reclamation works. By absorbing advanced technology of Dutch and American related products, this series of dredgers show their characteristics of rational design, all hydraulic control, simple operation, little maintenance and strong power. The capacity of JLCSD dredgers range from 100m3/hr to 1000m3/hr,dredging depth range from1m to 25m and discharge distance range from 500m to 3000m,which can satisfy different work demands.
How the dredger works:
The spud is drawn in, and the anchors are placed at a sufficient distance outside the cut. The ladder is then lowered and the suction mouth submerged, before the pump is started. Water flow then begins and the cutter starts to rotate. Finally, the ladder is lowered and the soil-water mixture can be sucked up.
There are three basic operations involved in the moving or repositioning of the dredger in order to begin production. These are:
Swing movement
The winch,anchor,and cutter is connected by wire rope.When the anchor is hauled by starboard winch and paid out of the portboard winch ,the cutter moves right.When the anchor is hauled by portboard winch and paid out of the starboard winch,the cutter moves left.The portboard winch and starboard winch alternately performs the task of hauling and paying-out,meaning the cutter follows an arc from starboard to portboard and back again.
Stepping
The spude includes main spud and auxiliary spud.When the dredger is working,the main spude is dragged into the soil to fix the machine and the other is in the air.When the dredger needs to move forward,it swings at a certain angle .The auxiliary spud is pushed in the ther earth by hydraulic ram,and the main spud is pulled up.Then the dredger moves forward step by step.
Movement of the anchors
When a certain distance hs been covered while in the same position,the anchor must be moved forward to guarantee the dredger work normally.
Dredger features
1.Modular design: the pontoons and main spare parts are connected by the bolts and nuts,which means the dredger can be dismantled in the factory and mounted in the construction sites. of course,the delivery time will be reduced a lot by containers.
2. world -class spare parts: we use the best parts like commins disel engine and simmens PLC controlling system,shijiazhuang pump.......Also ,we build a efficient system to optimize the flow the production so as to guarantee the quality and function of the dredgers.
3.Flexible in use: the dredgers can be adapted to different circumstance like river and lake. The material like sand,stones,mud,salt can be easily sucked and discharged to the destination place.
Product Description
Julong dredgers can apply to all kinds of geologic structures and can be widely used in mineral digging, port dredging and reclamation works.
By absorbing advanced technology of Dutch and American related products, this series of dredgers show their characteristics of rational design, all hydraulic control, simple operation, little maintenance and strong power. The capacity of JLCSD dredgers ranges from 100m3/hr to 1000m3/hr, dredging depth from 1m to 25m and discharge distance from 500m to 3000m, which can satisfy different work demands.
Our Services
1 JuLong Company signs a long-time after-sale service agreement with customers.
2 We provide rational and practical design according to customers request.
3 We send engineers to assemble and test the machine within the period as agreed in the contract.
4 Witin warranty period,we provide free repair if quality problems emerge.
5 We make an excellent filing of customers for long-term following-up service.
General Considerations
The cutter suction dredger is a stationary dredger equipped with a cutter device (cutter head) which excavate the soil before it is sucked up by the flow of the dredge pumps.
During operation the dredger moves around a spud pole by pulling and slacking on the two fore sideline wires. This type of dredger is capable to dredge all kind of material and is accurate due to their movement around the spud pole. The stationary cutter suction dredger is to distinguished easily from the plain suction dredger by its spud poles, which the last don’t have.
The spoil is mostly hydraulically transported via pipeline, but some dredgers do have barge-loading facilities as well. Cutter power ranges from 50Kw up to 5000Kw, depending on the type of soil to be cut.
The ladder, the construction upon which the cutter head, cutter drive and the suction pipe are mounted, is suspended by the pontoon and the ladder gantry wire.
Seagoing cutter suction dredgers have their own propulsion that is used only during mobilization. The propulsion is situated either on the cutter head side or on the spud poles side.
Area of application
Cutter suction dredgers are largely used in the dredging of harbours and fairways as well as for land reclamation projects. In such cases the distance between the dredging and disposal areas is usually smaller than the distances covered by trailing suction hopper dredgers.
The cutter suction dredger also has the adbantage when an accurate profile has to be dredged. The cutter suction dredger can tackle almost all types of soil, although of coure this depends on the installed cutting power.
Cutter suction dredgers are built in a wide range of types and sizes, the cutting head power ranges between 20Kw for the smallest to around 4000Kw for the largest. The dredging depth is usually limited; the biggest suction dredger can reach depths between 25 an 30m. The minimum dredging depth is usually determined by the draught of the pontoon.
Advantages
Completely assembled and fully tested afloat before delivery
Simple, rapid assembly and dismantling
Ready for operation on arrival at site
Standard design, which implies early delivery and low price
Spare parts available from stock
Transportable by road, rail or sea
Reliable hydraulic system
Fresh water engine cooling system
Efficient fuel consumption
One-man operation
Wide range of optional equipment available
Optional equipment such as anchoring system, spud carriage system, swivel bend, accomodation room, ets. are avaiable
Contact Information
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Qingzhou Julong Dredging &Mining Machinery Co.,Ltd
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China
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Stephanie Bee