Sedimentation tank sludge cleaning device for sewage treatment

Abstract

The invention relates to a sedimentation tank sludge cleaning device for sewage treatment. Two water pumps and a sludge pump are arranged on a truss of a sedimentation tank; one water pump pumps clarified water in the sedimentation tank and sends the clarified water to the bottom of the sedimentation tank; a nozzle is used for blowing sludge at the bottom of the tank, and the deposited sludge is dispersed; then the muddy water is pumped out by using the sludge pump and sludge discharge of sludge at the bottom of the tank is realized; clarified water in the sedimentation tank is pumped by the other water pump; the clarified water is lifted to the height of the truss, a water distribution pipe is arranged in the length direction of the truss, a plurality of water outlets are formed in the water distribution pipe, and the clarified water lifted by the water pump vertically falls down from the water outlets of the water distribution pipe, impacts the liquid level of the sedimentation tankand disperses ice on the liquid level so that the liquidity of the liquid level is kept, and overflow and discharge of floating mud and impurities are facilitated.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a sedimentation tank sludge cleaning device for sewage treatment. Background technique [0002] Sewage treatment is a procedure often required in the field of industrial production, especially for various textile, papermaking, printing and dyeing, chemical and other industries. Due to the large amount of wastewater, if reliable sewage treatment is not carried out, it will cause extremely serious pollution to the environment . For the current sewage treatment system, it mainly includes three parts: a pretreatment system, a biochemical treatment system, and a muddy water filtration system; The water quality is kept uniform; the biochemical treatment system is mainly composed of anaerobic, anoxic, and aerobic treatment systems. In the case of a large amount of sewage treatment, it is usually composed of anaerobic pools and aerobic pools. In biochemical treatment ...

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Problems solved by technology

In the prior art, due to the accumulation of sludge at the bottom of the sedimentation tank, the mud scraping resistance is relatively large, and the scraper does not operate smoothly. Moreover, when the sludge at the bottom of the sedimentation tank is too thick, the sludge is easy to harden at the bottom of the tank, which is even more difficult. Good for scraping mud

In addition, most of the liquid surface of the sedimentation tank will have debris such as floating mud and fallen leaves. The floating mud and debris are generally collected and removed in the scum tank by overflow. However, the existing sedimentation tanks are generally large in volume and installed Outdoors, in the northern part of my country, it is easy to freeze, and the liquid surface of the sedimentation tank does not flow, which makes it impossible to remove debris such as floating mud and fallen leaves on the liquid surface. It can only be salvaged by manual ice breaking, which is labor-intensive and inefficient.

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