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The main difference between cutter suction and dredging dredgers

 What are the differences between the cutter suction dredger and the trailing suction dredger? Here are seven differences:
First, digging depth comparison: Cutter suction dredger, the maximum depth of 25-30 meters; trailing suction dredger, the maximum depth of digging beyond 35 meters.
Second, the scope of operations differences: The cutter suction dredger is suitable for dredging in the Neihu Lake area and coastal ports with small wind waves and low flow velocity; the suction dredger has strong wind resistance and is very suitable for use in coastal ports, navigation channels, and wide rivers. Ship anchorage operations.
Third, compare the suction head structure: cutter suction type, from the suction pipe, plus the front circling suction tube installed around the rotating reamer equipment; sucking type, from the suction pipe, plus the front end of the same as the cattle plow field composition.
Fourth, cost comparison: Cutter suction dredgers are classified as economical type dredgers; the cost of trailing suction dredgers is relatively high, and the cost of domestic type trailing suction dredgers is approximately 20,000 yuan/cubic meter. (Palm cabin capacity per cubic meter) around.
V. Comparison of Offshore Span: Cutter suction type dredgers are required to transport sediment out of the edge of the dredge. The sludge interval is generally about 1000 meters, and the operation interval is limited; the trailing suction dredger really gathers all the dredging equipment. One, independent operation, a wide range of operations.
VI. Comparison of construction requirements: Cutter suction type dredgers, due to the need to drain mud, under anchorage cables, will affect other ships, generally require the closure of the port; Suction dredgers, independent operations, do not have to seal the port, the port production is almost free influences.
7. Comparing dredging components: Cutter suction dredgers are suitable for excavating various types of soil; trailing suction dredgers are suitable for excavating silt, clay and sandy soil bottoms.


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