Jet Sand Mining Boat Dredger

What is the working principle of a Jet Sand Mining Boat Dredger?

The jet sand mining boat dredger operates on the combination of high-pressure water jet scouring and negative-pressure hydraulic suction, without mechanical cutting tools. Its system consists of three main parts: high-pressure water flushing system, suction pipeline and dredge pump.

1.Break up sediment by high-pressure water jets
The high-pressure water pump on board pressurizes water and sprays high-speed water flow through multiple front water guns to impact underwater silt and loose sand, breaking compacted soil into suspended slurry.
2.Suction mixed slurry via negative pressure.
The main dredge pump continuously extracts water inside the pipeline to generate negative pressure. The stirred sediment mixes with water to form high-concentration slurry, which is drawn into the suction head under atmospheric pressure and pump suction.
3.Discharge slurry through pipeline.
The slurry is pressurized by the dredge pump and transported via floating or shore pipelines to reclamation areas, barges or storage yards for dredging and sand extraction.