Grid type gas disturbance river mouth float sludge dredging device and river mouth float sludge dredging method

Abstract

The invention relates to a grid type gas disturbance river mouth float sludge dredging device and a river mouth float sludge dredging method. The device comprises a gas inlet pipeline, wherein the gasinlet pipeline is arranged in the center of a grid type gas disturbance assembly and communicates with a pipeline inside the grid type gas disturbance assembly; an outer air supply assembly feeds compressed air into the pipeline of the grid type gas disturbance assembly through the gas inlet pipeline; and the compressed air is sprayed out from each nozzle arranged on the grid type gas disturbanceassembly so as to disturb and dredge river mouth float sludge. According to the grid type gas disturbance river mouth float sludge dredging device and the river mouth float sludge dredging method provided by the invention, high-pressure gas is conveyed into the float sludge so as to stir fine sediment on the bottom part to a middle-layer water body and an upper-layer water body, so that a processof continuously dropping new silt oil and float sludge on a bed surface so as to be gradually dense is disturbed, the perpendicular density distribution of a water body with sediment is changed, a conveying distance of a sediment in the water body with sediment by riding the tide is greatly extended, and the pressure of navigable depth deficiency caused by sedimentation in channel is relieved. Meanwhile, the energy consumption cost of an existing channel dredging technology is greatly reduced.

Description

technical field [0001] The invention relates to the field of dredging devices for river (navigation) channels and dredging technology, in particular to a grid-type gas disturbance dredging device and a matching method for dredging floating mud in river mouth areas. Background technique [0002] At present, due to factors such as floods and long-term rainfall that cause sediment to flow with water, the estuary area of ​​the river is usually silted up by various sediment mixtures, and this silt will affect the flood control, drainage, irrigation, water supply, and navigation of the river. In order to restore the normal function of the river, it is necessary to carry out dredging and dredging projects to make the river deeper and wider through treatment, and the river water to become clearer, so that the production conditions and living environment of the masses have been significantly improved, and the " The goal is clear water, smooth river, green bank and beautiful scenery"....

AI Technical Summary

Problems solved by technology

[0007] And through the feedback of the on-site operators after repeated operations for a long time, the above-mentioned technological means of the prior art all rely on power to disturb the silt consolidated on the river bottom (bed), and transport the silt through the ship and the supporting pipeline equipment of the ship. Transport or transfer, and finally throw into the designated area, so there is a lot of energy consumption in each link, and the overall process of the technological means under the existing technology generally has low efficiency, high energy consumption, and targeted dredging of estuary floating mud Insufficient and other problems, so seriously affect the difficulty and economic cost of estuary waterway maintenance and governance

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