Novel mixing pipe for sludge purifying equipment

Abstract

The invention relates to a novel mixing pipe for sludge purifying equipment. The novel mixing pipe comprises a fixedly installed pipe sleeve and a stirring shaft movably installed in the pipe sleeve, wherein the stirring shaft is provided with inner blades, the inner wall of the pipe sleeve is provided with outer blades, and the inner blades and outer blades are arranged alternately in a staggered mode; the pipe wall of the pipe sleeve is provided with a hollow structure, one end of the pipe wall is provided with a flocculant introduction pipe, the inner wall of the pipe sleeve is provided with through holes at intervals which communicate with the inner cavity of the pipe wall, and the intervals between every two adjacent through holes gradually increase from the feed end to the discharge end of the pipe sleeve; and a plurality of guide rods are arranged in the pipe wall of the pipe sleeve, the end of each guide rod is provided with a guide motor, and the guide rods are symmetrically arranged around the central axis of the pipe sleeve. The pipeline gradual-change introduced flocculant is mixed with the sludge, so the novel mixing pipe has the advantages of favorable mixing effect, high speed and high efficiency, and implements continuous mixing. The inner and outer blades are used for stirring in a staggered mode, so the mixing effect is better.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a sludge treatment device. Background technique [0002] Before sludge dehydration, sludge conditioning should be carried out. The so-called sludge conditioning is also called chemical conditioning of sludge. Sludge concentration generally can only reduce the water content to about 85%. To further reduce the water content and volume, it is necessary to separate the bound water in the sludge, that is, to weaken the adhesion of this part of water to solid particles. Make the particles unstable and grow up. The common practice now is to set up a sludge conditioning tank before the sludge filter press to chemically condition the sludge, adding ferric chloride, lime and other organic and inorganic flocculants. The sludge flocculation time of the flocculants is generally 5- 10min. However, the sludge preparation tank occupies a relatively large area and in...

AI Technical Summary

Problems solved by technology

However, the sludge preparation tank occupies a relatively large area and investment, and the mixing of flocculant and sludge generally uses a low-speed paddle agitator or a hyperboloid agitator, and the mixing effect is not ideal.

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