Slurry-flocculant pipeline mixing and self-stirring device

Abstract

The invention discloses a pipeline mixing and self-stirring device beneficial to flocculation and dehydration of slurry. The pipeline mixing and self-stirring device comprises a Venturi suction mixer and a flocculation hydraulic stirring pipeline. The venturi suction mixer comprises a venturi inflow pipeline, a venturi tube reducing section, a venturi tube throat part, a venturi tube diverging section and a venturi outflow pipeline, and a hole is formed in the center of the venturi tube throat part and is used for sucking a flocculating agent under negative pressure. The flocculation hydraulic stirring pipeline comprises a stirring fan blade mounting shaft, stirring fan blades and a stirring pipeline circulation section, and the stirring fan blades are arranged in multiple stages, can automatically rotate to complete mixing and can also flexibly move to realize optimal hydraulic stirring under different conditions. And the venturi suction mixer and the flocculation hydraulic stirring pipeline are hermetically connected through a flange and a connecting valve. The device does not need power, is simple and efficient, and automatically completes hydraulic stirring after a flocculating agent is sucked by utilizing negative pressure. After being treated by the device, the mud can directly enter a subsequent deep dehydration device, so that the mud flocculation process flow is greatly simplified.

Description

technical field [0001] The invention relates to a mud-flocculating agent pipeline mixing and self-stirring device, in particular to a dehydration treatment device comprising a Venturi mixer and a stirring pipeline. Background technique [0002] In subway and other underground engineering projects or large-scale above-ground construction projects, a large amount of high-water-content mud is often produced. Due to its high water content and strong stability, it is difficult to directly transport the on-site mud, so it accumulates and occupies a large construction site. [0003] Nowadays, flocculation and sedimentation are often used in construction sites to treat high-water slurries, that is, mud and flocculants are mixed in the treatment tank first, and then after a period of time, the supernatant and the flocculation waste residue in the lower layer are separated after the flocculation reaction is complete. This method solves the problem of mud dehydration, but a large amou...

AI Technical Summary

Problems solved by technology

This method solves the problem of mud dehydration, but a large amount of construction experience shows that this method requires one or more large sump tanks, the problem of occupying the site still exists, and the required waiting time for reaction is long, which affects the construction safety on site and the progress of the project. have a greater impact

Therefore, in order to solve the problem of occupying a large space and waiting for the reaction time in the mud flocculation process, it is very necessary to find an efficient and simple mud flocculation dehydration method

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