Method and device for dumping fine material on the sea bed or slopes during dredging

摘要

The sand and gravel material extracted by a dredger 1 with floating grabs 2 is fed to a treatment installation 3. The ultra-fine mineral material occurring thereby is fed via a floating pipeline 4 and a pivotable tube 11 arranged thereupon to an underwater diffuser 5, which dumps the material on the seabed 12 or the slope 13 for packing. The diffuser 5 is arranged on a floating station 6. …IMAGE…