Suction System: Behind the cutter head, there is a suction mouth or suction inlet. The rotating cutter head agitates the material on the seabed, and the dredger's suction system sucks the loosened material into the dredger through a pipeline.
Pumping System: Once the material is sucked into the dredger, it passes through a series of pumps and pipelines. These pumps transport the excavated material from the dredging site to the designated disposal area, which may be a designated dumping site or a reclamation area.
Spud System: To maintain stability during dredging operations, CSDs are equipped with spuds (hydraulic or mechanical legs) that can be lowered to the seabed. These spuds anchor the dredger in place and prevent it from drifting with currents.
Self-propulsion: Many CSDs are equipped with self-propulsion systems, which enable them to move independently from one dredging site to another without requiring tug assistance.
Dredging Depth and Capacity: The dredging depth and capacity of a CSD can vary depending on its size and design. Large CSDs can achieve significant dredging depths, making them suitable for deepening harbors and waterways.
Operational Control: CSDs are typically operated from a control room on board the vessel. Dredging operators control the cutter head, suction system, pumps, and other equipment to optimize the dredging process.
Environmental Considerations: CSDs need to adhere to environmental regulations and guidelines during dredging operations. The disposal of dredged material must comply with environmental standards to minimize negative impacts on marine ecosystems.
Maintenance: Regular maintenance is essential to keep a CSD in good working condition. The cutter teeth, pumps, pipelines, and other components require inspection and upkeep to ensure efficient and safe dredging operations.