Suction dredger with dredging tube of variable length

摘要

A suction dredger comprises a dredging tube (3) which at one end is connected to a suction head (4) and which at the other end is connected to the suction dredger hull (1) by means of a pivot connection (7) having a pivot axis which is horizontally and transversely oriented with respect to said hull (1), and a suspension device (13, 14) by means of which said dredging tube (3) is displaceable between a generally horizontal rest position and an inclined dredging position, said dredging tube (3) comprising a frame (21) and a tube device (20) supported by said frame (21). The dredging tube (3) has a variable length.