Highly effective reaction deep-cone settling method and apparatus

Abstract

The highly effective reaction deep cone settling comprises coagulation reaction by mixing the mixer and sewage into the coagulation device, with the density of the sewage 1-60g / l, mechanical blending speed 200-400r / m, forming floc suspension which goes through is generated into secondary flow, and forms on the slanting plate big grain aggregates, sliding to the deep cone density chamber through the conical slanting plate center in sedimentation reaction, and with the big grain aggregates crushed and condensed in the density chamber and exhausted with further dehydration in deep cone condensation. It combines the deep cone sedimentation, coagulation and condensation. It is mainly used for the treatment of high density fine grain sewage with mud.

Description

technical field [0001] The invention relates to a reaction deep cone settling method and a device, in particular to a reaction deep cone settling method and a device for processing a fluid with high concentration of fine particles. Background technique [0002] Coagulation and sedimentation is one of the important technologies for solid-liquid separation in sewage treatment. Using coagulation and sedimentation technology, the solid particles in the sewage react with the coagulation and fixative agent to form flocs, so that they can settle rapidly in a short time to achieve a higher concentration. Suspension and water can be separated quickly. Coagulation and sedimentation techniques are suitable for suspensions with lower concentrations. However, with the needs of actual production, there is a lot of high-concentration sludge water that needs to be treated urgently. Due to the low settling velocity of high-concentration fine-grained sludge, if the natural settlement method ...

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Problems solved by technology

[0004] 1. It occupies a large area and has a small processing capacity per unit volume;

[0005] 2. The settling time is long, the efficiency is low, and the content of suspended solids in the effluent quality is high;

[0006] 3. The principle is single and can only be applied to a single process;

[0007] 4. Large investment, low degree of automation, difficult operation, high labor intensity for maintenance and repair;

[0008] 5. High operating costs;

[0009] 6. The concentration of the underflow discharge is low, which makes it difficult for the subsequent treatment of the underflow

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