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Water distribution device for air floatation contact area

A technology of water distribution device and contact area, which is applied in the direction of flotation water/sewage treatment, water/sewage treatment, water/sewage treatment equipment, etc., and can solve the effect of solid-liquid separation or liquid-liquid separation, connection and water distribution Inhomogeneity, lack of diversion system and other problems, to achieve the effect of optimizing the mixing process, simple structure, and uniform water distribution

Inactive Publication Date: 2017-12-12
上海在田环境科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The air flotation equipment in the prior art has the connection between the air flotation tank and the coagulation reaction tank, uneven water distribution and back-mixing phenomenon, lack of a reasonable diversion system, and the back-mixing phenomenon seriously affects the solid-liquid separation or liquid-liquid separation Effect

Method used

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  • Water distribution device for air floatation contact area
  • Water distribution device for air floatation contact area

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Embodiment Construction

[0011] See attached Figure 1 ~ Figure 2 The present invention consists of a coagulation tank 1, a flocculation tank 2, an air flotation tank 5 and a slag tank 8. The air flotation tank 5 is provided with a water distribution channel 3 and several dissolved gas release heads 7; the bottom of the water distribution channel 3 is provided There is a water distribution standpipe 4 corresponding to the dissolved gas release head 7; the plurality of dissolved gas release heads 7 are connected to the dissolved gas water pump by the dissolved gas distribution pipe 6.

[0012] The present invention works as follows: the sewage entering the coagulation tank 1 is coagulated by the added PAC reagent and then introduced into the flocculation tank 2, and the flocculation tank 2 is flocculated by the added PAM reagent and then introduced into the distribution channel 3, the flow rate in the channel 0.1~0.15m / s, the bottom of the water distribution channel 3 has several vertical distribution ris...

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Abstract

The invention discloses a water distribution device for an air floatation contact area. The water distribution device is characterized in that a water distributing channel is arranged in an air floatation tank; a vertical water distribution pipe which is corresponding to a dissolved gas releasing head is arranged at the bottom of the air floatation tank; the flow of a coagulation tank is coagulated by an added PAC reagent and then the coagulated flow is introduced into a flocculation tank; the flow of the flocculation tank is flocculated by the added PAM reagent and then the flocculated flow is introduced into the water distributing channel; the flow of the water distributing channel is guided and distributed by the vertical water distribution pipe and then enters the bottom of the air floatation tank to be mixed with the gas-dissolving water of the dissolved gas releasing head; a suspended solid is scraped into a residue tank by a residue scraping plate. Compared with the prior art, the water distribution device has the advantages that the water distribution is uniform, the water flow is stable, the floc is in full contact with gas-dissolved bubbles, the gas-dissolved bubbles are effectively prevented from returning into the flocculation tank, the uniform mixing process of sewage and air is optimized, the structure is simple, the operation and the maintenance are convenient and the device is especially suitable for a water treatment system of a small-size air floatation device.

Description

Technical field [0001] The invention relates to the technical field of sewage air flotation treatment equipment, in particular to a water distribution device for an air flotation contact area. Background technique [0002] At present, air flotation is one of the typical methods of solid-liquid separation or liquid-liquid separation in industrial wastewater treatment. Among them, the most commonly used is pressurized dissolved air flotation. The principle is to dissolve air under pressure. In the water, the air is supersaturated. After that, the pressure is reduced to normal pressure to allow the air to separate out, and the tiny air bubbles are released in the water to achieve air flotation. [0003] The air flotation equipment of the prior art has uneven connection and water distribution between the air flotation tank and the coagulation reaction tank, and backmixing, and lacks a reasonable diversion system. The backmixing phenomenon seriously affects the solid and liquid separat...

Claims

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Application Information

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IPC IPC(8): C02F1/24C02F1/52C02F1/56
CPCC02F1/24C02F1/5236C02F1/56C02F2201/002
Inventor 陈礼国
Owner 上海在田环境科技有限公司
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