Rotating helical screw
A rotating helical screw, also known as an auger, is a key component of an auger dredger. An auger dredger is a type of dredging vessel that is used to remove sediment, silt, and debris from the bottom of waterways, such as rivers, lakes, and ports.
The auger is a large, cylindrical screw that is attached to the bottom of the dredging vessel. As the vessel moves forward, the auger rotates and digs into the sediment at the bottom of the waterway. The screw then lifts the sediment up and out of the water, and deposits it into a holding area on the dredging vessel.
The helical shape of the screw allows it to move through the sediment more easily, and the rotation of the screw helps to break up and loosen the sediment. Auger dredgers are particularly effective at removing fine-grained sediment, such as silt and clay.
Overall, the rotating helical screw is a crucial component of the auger dredger, allowing it to efficiently and effectively remove sediment from waterways.