Visual multistage blowdown system

Abstract

The invention discloses a visual multi-stage sewage discharge system, belongs to the technical field of sewage treatment, and solves the problems of long precipitation time, low efficiency and environmental pollution of precipitation and flocculation in an existing sewage discharge system. The sewage treatment system consists of a flocculation tank body, a corridor, a stirring system, a manifold, a spraying device, a visual window, an inner crawling ladder, an outer crawling ladder, a reaction tank, a protein separation tank, a sedimentation tank, an integrated control system and a drainage tank, and has the beneficial effects that by improving each technological process of an existing sewage treatment system, a large number of bubbles generated in the sedimentation process can be automatically eliminated; the environment pollution caused by unpleasant odor emitted by bubble overflow can be avoided, residue flying can be inhibited, the residues are rapidly precipitated, the sewage treatment period is shortened, the precipitation effect is prevented from being influenced by residue flying, meanwhile, the volume utilization rate of the flocculation tank body is effectively improved, automatic residue cleaning is achieved, the automation degree is high, and the cost is low. The labor intensity of workers is effectively reduced, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, is suitable for potato starch processing enterprises to treat sewage, and in particular relates to a visualized multi-stage sewage discharge system. Background technique [0002] In the prior art, a multi-stage sewage system is generally composed of a multi-stage sedimentation tank, a manifold, an internal ladder, a control system, a reaction tank, a protein separation tank, and a sludge collection tank. Sedimentation tanks are deep pits below the ground level, reinforced with concrete. Sewage uses the principle of height difference to flow from the first-level sedimentation tank to the second-level, third-level, and multi-level sedimentation tanks for sedimentation, and then pumped into the reaction tank by the submersible pump 13 for reaction treatment, and the treated liquid flows to the protein separation tank for precipitation and separation , and finally discharged. The above pro...

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Problems solved by technology

[0003] 1) Since the existing sedimentation and flocculation treatment relies on gravity for sedimentation and separation, but because the residue will float, the sedimentation time is long and the efficiency is low;

[0004] 2) Since a large number of bubbles generated during the precipitation process cannot be eliminated in time, the generated foam overflows, emits bad smell, and seriously pollutes the environment;

[0005] 3) Because the sediment in the sedimentation tank cannot be observed at any time, the residue cannot be cleaned up in time, resulting in the effective volume of the sedimentation tank not being fully utilized;

[0006] 4) Since the sedimentation tank is concave and deep, it is impossible to use mechanical tools to clean up the residue after the sedimentation and flocculation work is over. The staff can only use auxiliary tools to clean up. Not only the cleaning efficiency is low, but also a lot of manpower and material resources are wasted. At the same time, the residue also has a pungent smell, which can easily affect the personal health of the staff

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