Combined treatment method for dehumidification and vacuum preloading of dredger fill and slurry flocculation

Abstract

The invention discloses a combined treatment method for dehumidification and vacuum preloading of dredger fill and slurry flocculation. The combined treatment method comprises following steps: A, injecting slurries and adding slurries with flocculating agents and / or lime; B, conveying slurries to a separation device for soil-water separation and separating slurries processed by the separation device to form water and soil, extracting and discharge water and conveying soil into a vacuum-preloading water-reduction pool; C, equipped the vacuum-preloading water-reduction pool with vertical drainage boards, connecting upper ends of the vertical drainage boards with a drainage pipeline connected with the outside, covering the top of soil in the vacuum-preloading water-reduction pool and the drainage pipeline with sealing cloth, adopting a sealing structure and soil sealing for the edge of the sealing cloth, connecting a vacuum pump with the drainage pipeline for extracting water in soil. The combined treatment method for dehumidification and vacuum preloading of dredger fill and slurry flocculation has following beneficial effects: by means of chemical and physical methods, water-reducing operation is carried out to soil for two times; higher water-reducing efficiency is obtained and is up to more than 40%; processing capacity of slurries is large; and the great significance in actual operation is obtained.

Description

technical field [0001] The invention relates to a combined treatment method of dredging fill soil and mud flocculation dehydration and vacuum preloading. Background technique [0002] The traditional mud separation system generally includes a flocculation tank, a mud filter press device and a drainage device. After the mud enters the flocculation tank, flocculant and lime need to be manually added. Because the mixing of the flocculant and lime with the mud needs to be relatively uniform to achieve the ideal muddy water Separation and stratification effect, but manual mixing and mixing basically cannot meet the requirements of uniform mixing, so the water reduction rate is low, and the configured mud filter press device handles a small amount of mud, and the process consumes a lot of energy. The amount of mud produced in the process is huge, so it is not conducive to practical operation. Contents of the invention [0003] In view of the deficiencies in the background t...

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Problems solved by technology

[0002] The traditional mud separation system generally includes a flocculation tank, a mud filter press device and a drainage device. After the mud enters the flocculation tank, flocculant and lime need to be manually added. Because the mixing of the flocculant and lime with the mud needs to be relatively uniform to achieve the ideal muddy water Separation and stratification effect, but manual mixing and mixing basically cannot meet the requirements of uniform mixing, so the water reduction rate is low, and the configured mud filter press device handles a small amount of mud, and the process consumes a lot of energy. The amount of mud generated during processing is huge, so it is not conducive to practical operation

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