Ventilating vacuum fast mud-water separating method for high-water content mud accumulation dredging yard

Abstract

The invention discloses an air permeable vacuum fast mud-water separation method of the dredged sludge storage yard with high water content, which relates to a water content fast reducing method of the dredged sludge with high water content and high clay content produced in the ports, the sea-routes and the hydraulic engineering. Through a vacuum extractor and a venting device, vacuum negative pressure in a space drainage system in a cofferdam storage yard is regulated, which can effectively solve the sludge plugging problem of the filtering and drainage system, cause the water content of the dredged sludge to be fast reduced, increase the sludge dredging amount of the cofferdam storage yard with the same capacity and reduce the land occupying area; meanwhile, the fast reducing of water content of the sludge can lighten the difficulty of subsequent processing of the sludge in the storage yard and shorten the construction period. With simple technique, low cost and obvious mud-water separation effect, the method is applied to the construction practice.

Description

Technical field [0001] The invention is a method for quickly separating the water from the high-water content dredged silt yard produced in the construction of water conservancy, port wharf, and waterway engineering, and is suitable for large-area comprehensive disposal projects of low-concentration dredged silt, and belongs to ports, waterways and water conservancy projects Technical field. Background technique [0002] With the development of the construction of ports, waterways and water conservancy, a large amount of dredged silt will inevitably be generated in the dredging and widening of various waterways and rivers, as well as in the construction and expansion of ports. According to incomplete statistics, my country’s annual abandonment of dredged silt The dredged silt reaches more than 100 million cubic meters, and the amount of dredged silt treatment is very considerable. Taking the first phase of the Jiangsu section of the East Route of the South-to-North Water Transfer...

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Problems solved by technology

[0004] Technical problem: The object of the present invention is to propose a high-water-content dredging silt stockpile to ventilate, vacuum, and quickly muddy water in response to the defects of large dredged silt production, high water content, slow sedimentation, and traditional stockyard treatment methods that occupy a lot of land and take up a long time. Separation method, and apply a breathable vacuum negative pressure in the drainage system to quickly discharge the water in the sludge to achieve the purpose of rapid separation of mud and water

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