Sea dredged silt dewatering and solidifying treatment integrated device and method

Abstract

The invention relates to a sea dredged silt dewatering and solidifying treatment integrated device and method.Dredged silt is sucked onto a dredger, the dredged silt is conveyed into a silt-water separating device after the dredger arrives at a sea treatment platform, centrifugal dewatering is carried out on the dredged silt through the silt-water separating device, tail water generated after dewatering is conveyed to a tail water treatment device to be treated, concentrated silt is conveyed to a solidifying device, a solidifying material in a solidifying material tank is conveyed to the solidifying device together with the concentrated silt, the concentrated silt and the solidifying material are fully stirred to obtain solidified soil, and the solidified soil is transported to a reclamation area through a silt transporting boat for reclamation.The sea dredged silt dewatering and solidifying treatment integrated device and method are good in dewatering and solidifying effect, high in dredged silt treatment efficiency, low in dredged silt treatment cost and high in automation degree; besides, the silt does not fall to the ground, no stock dump is needed and no secondary pollution is caused in the whole working process, the treated dredged silt reaches the standard and can be directly applied to engineering backfill, no secondary argillization happens, and disposal and efficient reutilization of the dredged silt are effectively achieved.

Description

technical field [0001] The invention relates to the technical field of building construction, and more specifically, to an integrated device and method for dehydration and solidification of marine dredging sludge. Background technique [0002] Dredged silt is dredged soil with high moisture content produced during the dredging of ports, waterways, lakes and oceans. With the rapid growth of my country's ports, waterways, marine and coastal engineering construction and maintenance projects, marine dredging silt is increasing rapidly. The total amount of dredging silt produced in the Pearl River Delta region of my country alone has reached hundreds of millions of cubic meters. Because such dredged silt has high moisture content, high clay content, low strength, poor engineering properties, and most of them contain a certain amount of pollutants, it is usually difficult to directly apply to engineering applications and needs to be treated or disposed of. Different regions choos...

AI Technical Summary

Problems solved by technology

These methods are costly, and have disadvantages such as long construction period and difficulty in accessing construction machinery at the initial stage of construction.

Recycling treatment methods mainly include mechanical dehydration, brick burning, ceramsite making and solidification, etc., while mechanical dehydration, brick burning, ceramsite making and other treatment methods have limited processing capacity, it is difficult to deal with large quantities of sludge, and there is sludge generation The problem of inconsistency with the time and space required by the project

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