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A dissolved air flotation sewage treatment device with self-cleaning function

A sewage treatment device, dissolved air flotation technology, applied in flotation water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Solve problems, extend effective operation time and other problems, achieve the effect of commercialization, stable effluent quality and small footprint

Active Publication Date: 2016-08-17
浙江美纳环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Obviously, the aforementioned first method works better, but it increases the complexity and cost of the equipment; the second method only relatively prolongs the effective running time, but does not completely solve the problem; the third method is thorough but uncontrollable and does not Wasted water and increased operating costs

Method used

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  • A dissolved air flotation sewage treatment device with self-cleaning function
  • A dissolved air flotation sewage treatment device with self-cleaning function
  • A dissolved air flotation sewage treatment device with self-cleaning function

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Embodiment Construction

[0023] The present invention will be described in further detail below in combination with the accompanying drawings, and specific implementation methods will be given.

[0024] The present invention is a dissolved air flotation sewage treatment device with self-cleaning function, comprising a base frame 1, a coagulation reaction zone 24, a dissolved air pump 2 arranged on the base frame in sequence, a gas-liquid separation tank 29, and a contact reaction zone 21 , scum separation zone 18, scum scraping device 17, clear water zone 12, the interconnection relation of each part is: coagulation reaction zone 24 inside is provided with agitator 22 and sewage inlet pipe 23 is set at appropriate position; Contact reaction zone 21 and scum The lower part of the separation area 18 is separated by a deflector 19, and the upper part is connected. The upper part of the communication is equipped with a scum scraping device 17. Along the moving direction of the scum scraping device, a scum ...

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Abstract

The invention discloses a dissolved air floatation sewage processing device with a self-cleaning function, and belongs to the technical field of industrial sewage processing devices. The provided sewage processing device comprises an underframe, a coagulation reaction area, a dissolved air pump, a gas / liquid separating tank, a contact reaction area, a scum separating area, a slag scraping device, and a clean water area, wherein the dissolved air pump, gas / liquid separating tank, contact reaction area, scum separating area, slag scraping device, and clean water area are arranged on the under frame and communicated with each other through corresponding parts. The sewage processing device is characterized in that the gas / liquid separating tank is connected to the scum separating area through a cleaning electromagnet valve and a cleaning releaser, the cleaning releaser is composed of releasing pipes, which are evenly arranged in the scum separating area, each releasing pipe is provided with a small hole, the cleaning releaser is connected to the gas / liquid separating tank through the cleaning electromagnet valve, and a perforated water collecting pipe is arranged above the cleaning releaser, and is connected to the clean water area through a clean water electromagnet valve. The provided dissolved air flotation sewage processing device can automatically remove settled scum left in an air flotation device by controlling the related electromagnetic valves and cleaning release through an automatic control technology so as to guarantee the water quality of discharged water, moreover, the structure is simple, thus the device is easy to promote, and a reliable sewage treatment method is provided for the small and micro enterprises.

Description

technical field [0001] The invention belongs to the technical field of industrial sewage treatment devices, in particular to a dissolved air flotation sewage treatment device with self-cleaning function. Background technique [0002] Dissolved air flotation technology is a traditional process technology for industrial sewage treatment. This technology is widely used in sewage treatment projects such as sewage decolorization, heavy metal ion removal, suspended solids removal and COD degradation. It is widely used in the sewage treatment industry due to a series of advantages such as relatively small footprint. However, due to the air flotation device, especially the advection air flotation device, the scum is always not scraped clean. For the intermittent operation of the air flotation device, the remaining scum on the water surface will be with the When the bubbles burst and sink to the bottom of the scum separation area, when the machine is turned on next time, the sinking...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F1/24
Inventor 陈敏感
Owner 浙江美纳环保科技有限公司
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