A boom turret for a debris body. The boom turret includes an inlet defining an inlet axis and configured to couple to a hose. An outlet defining an outlet axis and configured to rotatably couple to the debris body. The inlet axis is substantially orthogonal to the outlet axis and a debris flow path is defined within the boom turret between the inlet and the outlet. A plate is disposed between the inlet and the outlet and has a surface at least partially defining the debris flow path through the boom turret. A nozzle is coupled to the plate and extends into the debris flow path. A pressure vessel is configured to hold a charge of pressurized fluid, and the pressure vessel is coupled in flow communication with the nozzle and selectively releases the charge of pressurized fluid through the nozzle to dislodge accumulated debris within the debris flow path.

A boom turret for a debris body. The boom turret includes an inlet defining an inlet axis and configured to couple to a hose. An outlet defining an outlet axis and configured to rotatably couple to the debris body. The inlet axis is substantially orthogonal to the outlet axis and a debris flow path is defined within the boom turret between the inlet and the outlet. A plate is disposed between the inlet and the outlet and has a surface at least partially defining the debris flow path through the boom turret. A nozzle is coupled to the plate and extends into the debris flow path. A pressure vessel is configured to hold a charge of pressurized fluid, and the pressure vessel is coupled in flow communication with the nozzle and selectively releases the charge of pressurized fluid through the nozzle to dislodge accumulated debris within the debris flow path.

A system for dredging a seabed includes a trailing suction hopper dredger. The trailing suction hopper dredger includes a hull, a rail coupled to the hull, and a dredge arm coupled to the rail. The dredge arm includes an upper suction pipe coupled to a lower suction pipe. A pump is coupled to the upper suction pipe and is configured to draw material toward the upper suction pipe from the seabed. A visual marine life deterrent is coupled to the dredge arm and is configured to direct light toward the sea floor where marine life may be located. Another visual marine life deterrent includes a silhouette of a marine life predator. The visual marine life deterrents are configured to be observable by the marine life and cause marine life to move away from the dredge arm.

Dredging apparatus systems and methods are disclosed herein. In an embodiment, a dredging apparatus includes a float assembly, a support frame, and a suction head assembly. The float assembly is configured to float on the surface of a liquid. The support frame is connected to the float assembly. The suction head assembly is movably supported with respect to the float assembly by the support frame. The support frame is tiltable with respect to the float assembly between a first position and a second position.

A deep-sea mining vehicle for taking up mineral deposits from a seabed at great depth, the vehicle includes a support frame provided with means for moving the vehicle forward on the seabed, with at least one suction head with an open suction side which is directed toward the seabed and along which the mineral deposits and surrounding water are taken up, and with a temporary storage, connected via a suction conduit to the at least one suction head, for the mineral deposits taken up, temporary storage includes a container with a front wall, a rear wall, side walls, an upper wall, and a bottom, at the position of the upper wall and connecting to the front wall a first connecting part for the suction conduit, and at substantially the same height and connecting to the rear wall a second connecting part for a discharge conduit for discharge of substantially the sucked-up water.

A method for controlling an articulated arm with a mobile remote control unit located spatially distant therefrom employs a machine coordinate system which is linked to the articulated arm, and an input coordinate system which is linked to the remote control unit. A deviation between the spatial orientation of the input coordinate system relative to the spatial orientation of the machine coordinate system is determined. A target movement direction and target movement speed of the end piece of the articulated arm in the input coordinate system are detected via control elements of the remote-control unit. The target movement direction is transformed into a transformed movement direction using the determined deviation. The transformed movement direction and the movement speed are transmitted to an articulated arm control unit for controlling a drive unit of the articulated arm.