Sanyang dredge draghead which is used by the trailing suction hopper dredger, is a steel structure that is connected to the dredger by a suction pipe. Supported by the gantries and by using hydraulic winches the dredge drag head and suction pipe are let down onyo the sea bottom in order to suck a mixture of water and sand.
To cut the sea bed, the dredge.draghead is equipped with replaceable teeth and water jet nozzles. The nozzles are placed at the front of the dredge draghead and used to cut the sand at the sea bed vertically, while the replaceable teeth are placed at the back to cut horizontally.
Dredge Draghead – Types:
- Universal dragheads.
- California dragheads.
- Active dragheads.
Dredge Draghead – Features:
- Easy to maintenance.
- Suction pipe diameter of 400-1300 mm.
- Efficient hydraulic design.
- Replaceable wear blocks and side skirts.
- Replaceable teeth system.
Dredge Draghead – More Photos
