Plaster multi-step treatment device for underground engineering construction

Abstract

The invention discloses a multilevel treatment equipment for slurry in underground construction, which comprises a prescreening device, a desander and a desilter; wherein, through a pipeline the dredge pump is connected with the prescreening device the prescreening device is connected with the desander through a pipeline; the outlet of the middle storage tank of the desander is respectively connected with a slurry-storing tank and a slurry-adjusting pool of the desilter through a conversion valve and a pipeline; the middle storage tank of the desilter is connected with the slurry-adjusting pool. The invention can process the slurry in complex strata stage by stage, meeting the requirements of processing slurry under different construction condition. The invention has the advantages of strong adaptability for strata, high precision of solid phase separation, low mud weight ratio for processed clean mud and low sand content rate.

Description

technical field [0001] The invention relates to a muddy water multi-stage treatment device in underground engineering construction, which is suitable for large-diameter pile foundation engineering, anti-seepage wall engineering, muddy water shield engineering, etc. Sludge treatment in engineering. Background technique [0002] At present, a large amount of mud generated during the construction of underground projects is mostly treated with equipment such as cyclones and sedimentation tanks. Big and bad for the environment. The Chinese patent number is 200420022927.7, and the name is a large-flow muddy water particle classification treatment device. This device mainly deals with the stratum with sand content in the stratum. The treatment is mainly based on sedimentation. Large, and cannot meet the requirements of the on-site environment to quickly separate into clean water with high cleanliness and slag with low moisture content within a specified time when dealing with com...

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Problems solved by technology

[0003] The purpose of the present invention is to aim at the defect that the mud in complex formations cannot be classified and processed in the prior art, and to provide a multi-stage treatment device for muddy water in underground engineering construction that can handle complex formations, so as to provide qualified slurry (treatment) for underground engineering construction. particle size up to 0.020mm), and the moisture content of the treated slag is low

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