Shipborne multifunctional sand taking and island building excavator

Abstract

The invention discloses a shipborne multifunctional sand taking and island building excavator. The shipborne multifunctional sand taking and island building excavator comprises a ship body (1) as a carrier of whole equipment, a sediment excavation part and a sediment conveying part, wherein the sediment excavation part comprises an excavation conical head (2), a sand taking cutter head (3) and a sediment channel extension sleeve (4); the excavation conical head (2) and the sand taking cutter head (3) are quickly rotated to cut and stir riverbed sediments, and enters an internal spiral drainer(14) to suck in the excavated sediments at high speed; the excavated sediments are backwards conveyed through the sediment channel extension sleeve (4); the sediment conveying part comprises a sediment channel hose (7), a sediment acceleration drainer (8) and a sediment spraying pipe (9); and the backwards conveyed sediments are sucked in at high speed for pressurization, and are sprayed out froma sediment spraying port (11). The shipborne multifunctional sand taking and island building excavator can once continuously finish such working processes as mud excavation, mud carrying and mud unloading, is an excavator with high efficiency and lower cost, is excellent underwater excavation mechanical equipment, can greatly improve the engineering benefit compared with the same type of products.

Description

technical field [0001] The invention relates to earthwork construction machinery, in particular to a ship-borne multifunctional excavator for taking sand and making islands, which can be widely used in dredging and filling projects in ports, waterways, land-making and other engineering projects. Background technique [0002] At present, among the hydraulic excavators used in dredging and filling projects, the cutter suction excavator is a relatively common one. Its basic working principle is to excavate and loosen the seabed mud (sand, stone, etc.) The mud and water are mixed, and at the same time, the vacuum generated by the centrifugal mud pump on board sucks and lifts the mud obtained from the excavation, and then discharges it through the mud discharge pipeline and transports it to the sand treatment site. [0003] Cutter-suction excavators are mainly used in the construction of river excavation, channel dredging, and filling of ditches and depressions. The dredging, mud...

AI Technical Summary

Problems solved by technology

The process is complicated and the efficiency is reduced

[0007] The cutter suction excavator is also affected by the direction of water flow. Generally, downstream construction is used in inland river construction, which is not easy to control the mud concentration and makes the load of the main engine unstable.

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