Efficient pipeline flocculating mixer and dosing and stirring device

Abstract

The invention provides an efficient pipeline flocculating mixer which comprises a feed pipe, a stirring pipe, a discharge pipe and a stirrer, wherein the feed pipe, the stirring pipe and the discharge pipe are arranged in parallel and are communicated in sequence; the stirring pipe is a round pipe, and the two ends of the stirring pipe are blind ends; the stirrer comprises a driving motor, a stirring blade and a central shaft; one end of the central shaft is connected with the driving motor, and the other end of the central shaft is connected with the stirring blade; and the stirring blade is just contained in the stirring pipe. By solely arranging the stirring pipe in the shape of the round pipe, the axial length of the stirring blade meets the condition that the stirring blade is just contained in the stirring pipe, so that a dead zone can not occur, and the stirring is more sufficient.

Description

technical field [0001] The invention relates to a solid-liquid separation device, in particular to a pipeline flocculation mixer at the front end of the solid-liquid separation device. Background technique [0002] At the front end of the solid-liquid separation equipment, in order to ensure sufficient separation of mud and water, a flocculation mixing tank or some pipeline mixers will be added to the front end of the dehydrator. [0003] After the sludge at the bottom of the tank and the flocculant meet in the flocculation mixing tank, under the agitation of the agitator, the sludge and the flocculant are mixed and gradually form flocs. But this flocculation mixing tank has the following disadvantages: [0004] 1. Due to the structure of the flocculation mixing tank itself, it is inevitable that when the agitator is stirring, the stirring force in the blind area will be insufficient or uneven, resulting in unsatisfactory and unstable flocculation effect. [0005] 2. The s...

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the structure of the flocculation mixing tank itself, it is inevitable that when the agitator is stirring, the stirring force in the blind area will be insufficient or uneven, resulting in unsatisfactory and unstable flocculation effect

[0005] 2. The stirring speed of the agitator will not be too fast, resulting in uneven mixing of sludge and chemicals, and insufficient accumulated energy, resulting in many chemicals not being used most effectively

Increased the dosage of the agent, and the effect of flocculation is not ideal

[0006] 3. Because the mixing blades are too large and too long, it is easy to cause the deformation and breakage of the blades, resulting in unstable operation

The steel pipe used to transport sludge in the existing common pipeline mixer is a circular pipe structure. A through hole is opened from the side wall of the circular pipe, and the stirrer is inserted vertically for stirring. Since the stirring shaft of the stirrer is perpendicular to the central axis of the circular pipe, the stirring It is difficult for the mixing blade of the mixer to fit the arc-shaped tube wall, and the blind area is inevitable. The stirring force in the blind area is not enough or uneven, resulting in unsatisfactory and unstable flocculation effect.

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