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Cutter Suction Dredger Development and Status Quo

Cutter Suction Dredger Development and Status Quo

 Benefits from cutter suction dredgers and its share in world dredgers, development of large cutter suction dredgers, continuous improvement of dredgers, continuous improvement of automation, and new and small dredgers The continuous emergence of these aspects discussed the status and development of the world's cutter suction dredgers.
Cutter suction dredgers are widely used in ports, dredging and dredging projects. Cutter suction dredgers generally have a smaller interval from dredging to dredging than dredging dredgers.
Cutter suction dredgers are suitable for digging all types of soils, depending on the configuration of cutting power. Cutter suction dredgers have a wide range of types and scales. The power of reamer heads can be as small as 20 KW and as large as about 4000 KW. However, the dredging depth is generally limited. The maximum depth of excavation is 25-30 m. The minimum dredging depth is usually determined by the draft depth of the hull (flat-bottomed boat).
Cutter suction dredgers are static dredgers. There are at least two anchor cable systems that are important to the digging process. However, the anchor cable has hindered the flight of other ships. Some large-scale cutter suction dredgers are equipped with a thruster system to reduce the risk of being “caught”; the thruster system can be used to help the cutter suction dredger leave the digging area, and of course, it can also help the cutter suction dredging. The ship moves from one operating point to another.
Small and medium-sized cutter suction dredgers can be made detachable. This method is more suitable for transportation from roads to inland areas and water-free roads, such as sand layering for roads, sand and gravel for construction companies. Cutter suction dredgers equipped with wave compensators can be constructed in open waters with waves, and their limitations are clearly and clearly compared to trailing suction dredgers.
(1) Cutter suction dredgers are widely used and can be used in rivers, lakes and seas for dredging, channel digging, and land reclamation. In special circumstances, the cutter cradle equipment on the cutter suction dredger can be used to excavate rock formations such as basalt and limestone without exploding.
(2) The cutter suction dredger has high working efficiency, large output, and long pump distance. The large-scale cutter suction dredger has an hourly flow capacity of several thousand cubic meters. The sediment or crushed rock material is pumped out of the kilometer by the mud pump and the mud discharge pipeline.
(3) The cutter suction dredger is simple and easy to operate. The dredger relies on the trolley of the ship to position and step the steel piles, and uses the reamer arm frame to measure the steel cables and the anchors fixed to the trenches to measure the anchors. The traction reamer relies on the rea by the hinged vehicle to swing and cut the silt material in the hatchback. The controlled operation will put down the stranded material and pump it to the stacking field through the mud pipe. The dredging boat's stepping is to replace the movement by two piles and step forward.
(4) Large cutter suction dredgers with self-navigation system. It can be self-propelled during migration. Most small and medium-sized dredgers are not self-propelled and are towed by tugboats. Small and medium-sized dredgers can be designed and built to be assembled, transported by land to the site, and can be used after being assembled.
(5) The cutter suction dredger is economical. The digging and transportation of materials are completed in one go. No other vessels are required to cooperate and transfer several times. The relative engineering cost is lower.


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