Deepwater negative-pressure desilting system

Abstract

The invention relates to a deepwater negative-pressure desilting system. The deepwater negative-pressure desilting system comprises a desilting pipe and an air supply pipe, wherein the desilting pipe is arranged in water, the top end of the desilting pipe communicates with an output pipeline, and the bottom end of the desilting pipe is arranged in a part to be desilted in water; the air supply pipe is installed on one side of the desilting pipe, the top end of the air supply pipe is connected with an air compressor through an air hose, and the bottom end of the air supply pipe is provided with an air supply inflator which communicates with the air supply pipe and the desilting pipe. The deepwater negative-pressure desilting system has the predominant effects that the purpose of underwater desilting can be achieved through the deepwater negative-pressure desilting system, construction is simple, suspended loads and bed loads at the bottom of a reservoir can be cleaned under the requirements of environmental protection and pollution prevention, and the cleaning effect on aggregated rocks with different grain sizes can be achieved at the same time by changing the pipe diameter of the desilting pipe and the pore diameter of a filter screen at the end of the desilting pipe, so that the system is applied to exploitation of underwater gravel with the different grain sizes, and the problems that desilting equipment is simple and crude and the operation process is tedious in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of deep water underwater dredging, in particular to a deep water negative pressure dredging system. Background technique [0002] At present, the existing ecological dredging technology generally uses pneumatic pumps to dredge underwater and dredge rivers. Pneumatic pumps use compressed air as power to suck and discharge sludge. Usually, the pump body is equipped with three pump barrels, and each pump barrel There is a mud inlet at the bottom, and a suction head or a connecting pipe is arranged before the mud inlet. When the pump barrel sinks into the water under the action of gravity and sinks into the silt, the silt is sucked into the pump barrel under the hydrostatic pressure and the vacuum negative pressure of the pump barrel, and then the compressed air enters the exhaust valve from the top of the pump barrel through the air distributor through the pipe Enter the pump barrel, press the silt in the barr...

AI Technical Summary

Problems solved by technology

The structure of the underwater dredging machine is complex, the operation is cumbersome, and it is not suitable for deep water dredging

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