Details
Definition of dredging vessel:
Dredging boat, a tool for removing sediment from the bottom of the water. The power generally has diesel engine, motor two kinds. The hull is the floating body, using the packing type structure. There are dredging device, power plant, transmission device and so on. The bottom sediment is removed by a power-driven desilting device and sent to the designated location by a conveyer.
Working conditions: The flow rate of river water in rainy days is more than 2 cm/s.
Working principle: The use of ship power to drive the pump, produce high pressure water flow into the spray pipe, through the installation of the spray pipe spray gun water flow, the silt deposited at the bottom of the river into the muddy water, flow away with the river, so as to play the role of dredging.
Technical features: The spray pipe is provided with a fixed pipe and a movable pipe, the fixed pipe and the movable pipe are provided with a spray gun, the movable pipe and the fixed pipe can be folded and sealed. When the boat comes to the pier or narrow river, the movable pipe of the spray pipe can be folded to facilitate the boat to sail, while the spray gun on the fixed pipe continues to spray water. In a wider river, the movable pipe will be expanded, so that the movable pipe and the fixed pipe on the spray gun spray water at the same time to clean up the silt. Thus avoiding the length of the spray pipe by pier and hull size restrictions, flexible operation, greatly improve the efficiency of use and dredging effect.
Dredging vessel type characteristics
dredging ship is chain et dredging ship
The jet suction dredging ship is the jet suction dredging ship, mainly consisting of floating body, silo, sand suction pump, spray pump, suction salon head with water gun, upper straw, lower straw, walking device and so on. This boat highlight is suction salon head. It is equipped with a high pressure water gun. The water jet pump shoots the bottom sand directly through the water gun, and the sand sputters around the suction salon head under the high pressure water jet. The suction salon head is sucked up by the sand suction pump and discharged into the bin by the upper straw. Jet suction suction barge is cheap, simple to use and easy to operate. It is suitable for operation in reservoir area, river bottom, artificial lake and so on.
The cutter suction dredging ship is the main type of dredging ship, composed of floating body, reamer, upper straw, lower straw and so on. He uses the reamer in the front section of the lower straw and the rake head device to cut and agitates the bottom sediment, then sucks it up by the pump through the lower straw and sends it out to the designated position with the upper straw. The ship is efficient and low cost. Handle sand and water mixture at 50 to 500 cubic meters per hour depending on boat type. The handling capacity of super large dredging vessel has exceeded 1000 square meters.