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High-efficiency sludge discharge sedimentation tank

A technology for sedimentation tanks and sludge discharge tanks, applied in the direction of sedimentation separation, settling tanks, settling tanks, etc., can solve the problems of increasing water production costs, increasing energy consumption for sludge treatment, occupying land resources, etc., and achieves saving floor space, Improve mud discharge efficiency and save energy consumption

Pending Publication Date: 2020-02-04
上海水业设计工程有限公司
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Problems solved by technology

The above sludge treatment processes not only greatly occupy land resources, but also increase the energy consumption of sludge water treatment, which indirectly increases the cost of water production

Method used

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  • High-efficiency sludge discharge sedimentation tank
  • High-efficiency sludge discharge sedimentation tank
  • High-efficiency sludge discharge sedimentation tank

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] This embodiment of the present invention is a novel high-efficiency mud-discharging sedimentation tank, which is mainly composed of a multi-layer sedimentation tank and a central mud-discharging tank.

[0021] Multi-layer sedimentation tanks are set on both sides, and the center is separated by a sludge discharge tank. Bottom mud scrapers are used in each sedimentation area of ​​the multi-layer sedimentation tank. The mud scrapers can be reciprocating, chain or other types, but the mud scraping direction is to scrape mud from both sides to the middle, and finally scrape the bottom mud to the central mud discharge tank. Since the function of the central sludge discharge area is to receive the bottom sludge of each layer, the sludge discharge process of each layer of sedimentation tank does not affect the normal operation of other layers of sedimen...

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Abstract

The invention discloses a high-efficiency sludge discharge sedimentation tank. The high-efficiency sludge discharge sedimentation tank comprises multi-layer sedimentation tanks and a central sludge discharge tank, wherein the multi-layer sedimentation tanks are positioned at two sides; the bottom of each layer of sedimentation tank is provided with a bottom sludge scraper; bottom sludge of the multi-layer sedimentation tanks at two sides is scraped to the central sludge discharge tank by the bottom sludge scrapers; the liquid level of the central sludge discharge tank is lower than liquid levels of the sedimentation tanks, so that water is ensured to flow from the sedimentation tanks at two sides to the central sludge discharge tank; a supernatant fluid return pipe is arranged above the sludge discharge tank to enable a supernatant to flow back to the sedimentation tank for water inlet; a concentrating sludge scraper is arranged at the bottom of the sludge discharge tank; and a sludgedischarge pipe is arranged at the lower part of the sludge discharge tank and is connected to a sludge dewatering device. The high-efficiency sludge discharge sedimentation tank is mainly applied to awater treatment and precipitation process, the sludge discharge path and frequency of the sedimentation tank are shortened through transverse sludge discharge, and a supernatant fluid reflux system of a sludge discharge area is combined, so that automatic continuous hydraulic sludge discharge can be realized, sludge-water separation can be realized rapidly, and precipitation efficiency and the sediment concentration effect are facilitated.

Description

technical field [0001] The invention relates to a high-efficiency sludge discharge sedimentation tank. The system is mainly used in the water treatment sedimentation process. By setting up a sludge discharge area in the center of the multi-layer sedimentation tank, the efficiency of the sludge discharge system can be improved, and the subsequent sludge treatment process can be simplified, which saves the floor area and construction costs. Background technique [0002] The sedimentation tank is a large structure in the water treatment plant, and the multi-layer sedimentation tank saves the area of ​​the sedimentation tank by improving the sedimentation efficiency per unit area, and is widely used. According to the "Shallow Pool Theory", once the sediment in the sedimentation tank sinks to the bottom of the tank, it can be removed by the sedimentation process. However, in actual operation, it is found that if the sludge that sinks to the bottom of the tank cannot be removed i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/24B01D21/32B01D21/00
CPCB01D21/003B01D21/0087B01D21/245B01D21/32
Inventor 周易
Owner 上海水业设计工程有限公司
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