Dredging system and methods of dredging

Details Dredging system and methods of dredging Dredging system and methods of dredging

E - Fixed Constructions

02

F

262/30

E02F 3/92 (2006.01) E02F 3/90 (2006.01)

Patent

CA 1043361

DREDGING SYSTEM AND METHODS OF DREDGING ABSTRACT OF THE DISCLOSURE A dredging system for excavating difficult-to-dig material wherein a cutterhead is supported on a boom mounted on a floatable vessel and a suction conduit communicating with a suction developing mechanism leads to the cutterhead housing. The cutterhead housing is mounted for pivotal move- ment about a generally longitudinal axis on the longitudi- nally extending boom and has a vertically disposed rotary disc supported in the cutterhead housing forwardly of a material collecting compartment for rotation about a trans- verse axis. At least one opening is provided through the disc and a knife is mounted on the outer face of the disc in a position to cut material and to propel it through the opening to the material receiving compartment from which it is moved into the suction conduit and removed to a remote location. Because the cutterhead housing and its rotary disc are supported for powered pivotal movement on the boom about a generally longitudinal axis, the cutterhead can, at the ends of its sidewise paths of travel in each direction be turned stepwise end-for-end, cutting a path for itself as it moves to a position in which it can take a return cut at a lower level.

277570

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