Buoyancy ascending-descending water decanter and implementation method thereof

Abstract

The invention discloses a buoyancy ascending-descending water decanter, which is mainly used for solving the problems of complex structure, easiness in damaging, inconvenience in installing and maintaining, high cost and the like existing in the conventional water decanter. The buoyancy ascending-descending water decanter comprises a water decanting groove, a main drain, a drain valve and a buoyancy ascending-descending mechanism, wherein water decanting groove is provided with a water decanting weir crest; the main drain is connected with the water decanting groove through a telescopic branch drain; the drain valve is arranged at the water outlet of the main drain; the buoyancy ascending-descending mechanism is used for driving the water decanting groove to ascend and descend through buoyancy, and comprises a buoyancy tank pond inside which a buoyancy tank floats; the buoyancy tank is fixedly connected with the water descanting groove through a bracket, and moves synchronously with the water descanting groove; and the bottom of the buoyancy tank pond is communicated with the main drain. On the basis of the structure, the invention further discloses an implementation method of the buoyancy ascending-descending water decanter. The buoyancy ascending-descending water decanter has the advantages of simple structure, no quick-wear part, high cost performance and suitability for popularizing and applying.

Description

technical field [0001] The invention relates to a water decanter used for sewage treatment, in particular to a buoyancy-lifting water decanter and its realization method. Background technique [0002] The SBR process adopts batch reaction, and the water intake, reaction, sedimentation, and drainage are completed in the same pool, without the need for secondary sedimentation tanks and sludge return equipment. It is widely used in papermaking, alcohol, dyes, pesticides, leather, viscose, monosodium glutamate, In the treatment of industrial wastewater (waste liquid) in industries such as sugar refining. When using SBR process or similar process to treat sewage, it is necessary to use a decanter to discharge the supernatant of the liquid in the reaction tank after the static sedimentation stage out of the tank. The decanter has the function of decanting the clarified water (supernatant liquid) from the surface of the static reaction tank without stirring the sediment and ensuri...

AI Technical Summary

Problems solved by technology

[0005] 1. The work needs to consume electricity, which is not energy-saving and environmentally friendly;

[0006] 2. The mechanical lifting device is complicated, resulting in high manufacturing and maintenance costs of the mechanical decanter;

[0007] 3. The liquid level will continue to drop during the decanting process, and it is difficult to keep the immersion depth of the weir of the decanting tank under the liquid level of the reaction tank constant. The operation is cumbersome and the realization process is complicated.

[0011] 3. Need to rely on spring force, mechanical force and sealing friction force, not only the structure is complicated, it is easy to cause misoperation, but also the valve failure rate is high, not only troublesome to maintain, but also seriously affect the normal use of the decanter

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