Sludge collecting device and underwater desilting device

Abstract

The invention relates to a sludge collecting device and an underwater desilting device. The sludge collecting device comprises a main traction assembly, a plow harrow assembly and an auxiliary traction assembly, wherein the main traction assembly is connected with one end of the plow harrow assembly through a steel wire rope, and the other end of the plow harrow assembly is connected with the auxiliary traction assembly through a steel wire rope. A preset distance is arranged between the main traction assembly and the auxiliary traction assembly, the plow harrow assembly is pulled by the main traction assembly to scarify sludge in a drainage channel and gather the sludge towards the direction of the main traction assembly at the same time, the plow harrow assembly is pulled by the auxiliary traction assembly to be gradually away from the main traction assembly and then reset to the initial cleaning position, and in this way, depositing sludge at the bottom of the channel is scarified and gathered. The underwater dredging device comprises a sludge collecting device and a sludge discharging device, wherein the sludge discharging device discharges the sludge collected by the sludge collecting device from the drainage channel, and the purpose of thoroughly removing the sludge at the bottom of the channel is achieved.

Description

technical field [0001] The invention relates to the technical field of dredging, in particular to a sludge collecting device and an underwater dredging device. [0002] technical background [0003] Drainage canals are usually dug on both sides of the municipal roads. Due to the limited land area of ​​the city and the prevention of air pollution caused by the smelly gas in the drainage canals, after the drainage canals are repaired, cover them with soil and cover them with soil above the drainage canals. Form public facilities such as parking lots, gymnasiums, and sidewalks that can be used. Drainage channels are used for drainage of sewage and rainwater. Sand and debris will adhere to the inner bottom wall of the drain, forming a thick layer of silt on the inner bottom of the drain, which will cause poor drainage of the drain and cause crossing of the water in the drain pollute. [0004] At present, the commonly used treatment method is: first remove the soil covering the ...

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Problems solved by technology

[0003] Drainage canals are usually dug on both sides of the municipal roads. Due to the limited land area of ​​the city and the prevention of air pollution caused by the smelly gas in the drainage canals, after the drainage canals are repaired, cover them with soil and cover them with soil above the drainage canals. Form public facilities such as parking lots, gymnasiums, and sidewalks that can be used. Drainage channels are used for drainage of sewage and rainwater. Sand and debris will adhere to the inner bottom wall of the drain, forming a thick layer of silt on the inner bottom of the drain, which will cause poor drainage of the drain and cause crossing of the water in the drain Pollution

[0004] At present, the commonly used treatment method is: first remove the soil covering the drain with a forklift, then remove the cover plates one by one with a crane, and then use an excavator to gradually scoop up the silt in the drain and load it into a truck Since there is a large amount of flowing sewage in the drainage channel, the operator of the excavator cannot directly observe the specific distribution of the underwater silt, and can only use experience to clean the silt at the bottom of the channel. situation, and this dredging method has a large amount of construction and low dredging efficiency

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