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A cutter suction dredger (CSD) is a stationary dredge vessel. The vessel utilizes a cutter head, to cut and suspend the soil for hydraulic transport. The hydraulic transport is arranged via one or more dredge pumps. Cut material is transported via pipelines and discharged to a deposit area, at sea or inland. In some cases, hopper barges moored alongside the cutter suction dredger transport the soil to the deposit area to unload it there.
Whilst operating, CSD are stationary dredgers. During operation, a spud(pole) on the back of the vessel is lowered in the seabed to secure the vessel. The spud acts as a rotating point, around which the vessel can sway, side to side using winches and anchors. During this sway motion the cutter head, mounted on a ladder at the front of the vessel, is lowered to the seabed. The cutter head rotates which results in cutting and removing of the soil.
Cutter head
The current locking of the cutter teeth on a cutter head body is realized by means of a press-fit spring pin. This system is manually installed, and literally “hammered” in- and out of its locking position. The current system is visualized in the figures below. A hammering system has some drawbacks in terms of safety and usability.
Assignment
To mitigate the current drawbacks IHC would like to come up with a well applicable locking system for the IHC Beaver range cutter heads (smaller size cutter heads).
The following steps are foreseen;
We offer
Together we create tomorrow's marine technology
We enable our clients to carry out complex maritime projects from the sea surface to the ocean floor, under the most challenging conditions.
Royal IHC has over 3,000 employees based at various locations in The Netherlands, China, Croatia, France, India, the Middle East, Nigeria, Serbia, Singapore, Slovakia, the UK and the USA. Technological innovation…
Together we create tomorrow's marine technology
We enable our clients to carry out complex maritime projects from the sea surface to the ocean floor, under the most challenging conditions.
Royal IHC has over 3,000 employees based at various locations in The Netherlands, China, Croatia, France, India, the Middle East, Nigeria, Serbia, Singapore, Slovakia, the UK and the USA. Technological innovation will remain the company’s underlying strength through its continuous investment in research and development. Moreover, it helps to safeguard a sustainable environment.
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