Novel thermoelectricity-textile printing combined cycle flue gas processing method and device thereof

Abstract

The invention discloses a thermoelectricity-textile printing combined cycle flue gas processing method and a device thereof, comprising a thermoelectricity device, a textile printing device and a textile printing sewage treatment unit; the thermoelectricity device comprises a boiler, a steam engine and a power generator which are sequentially connected, the textile printing sewage treatment unit comprises a flue gas adsorption neutralization regulating tower, a hydrolysis acidification tank, a biological contact tank and a sedimentation tank which are connected sequentially, the textile printing device is respectively connected with a first heat exchanger and a second heat exchanger, the flue gas adsorption neutralization regulating tower is connected with the textile printing device by a third heat exchanger, and the sedimentation tank is respectively connected with the textile printing device and the flue gas adsorption neutralization regulating tower; in the invention, acidic flue gas of thermal power plant and the alkalinity sewage produced by a printing and dyeing mill are neutralized to achieve the purposes of energy saving, environment protection and changing waste into wealth.

Description

Technical field: [0001] The invention relates to a thermoelectric-printing and dyeing combined cycle flue gas treatment system, which is used in the treatment of flue gas from a thermal power plant and sewage from a printing and dyeing plant, so as to achieve the purpose of energy saving, environmental protection, and turning waste into treasure. Background technique: [0002] At present, 80% of my country's electricity is thermal power, and thermal power plants use coal as fuel to generate heat and electricity, and at the same time produce a large amount of SO 2 、No x , CO 2 Wait for acid discharge, use desulfurization device, do not save high cost, and only remove SO 2 , cannot pass through other acid gases. Printing and dyeing factories not only need a lot of heat energy to heat process water, but also produce a large amount of alkaline sewage with a high pH value. The cost of pollution control is high, and many enterprises secretly discharge it for economic benefits. ...

AI Technical Summary

Problems solved by technology

[0002] At present, 80% of my country's electricity is thermal power, and thermal power plants use coal as fuel to generate heat and electricity, and at the same time produce a large amount of SO 2 、No x , CO 2 Wait for acid discharge, use desulfurization device, do not save high cost, and only remove SO 2 , cannot pass through other acid gases

Printing and dyeing factories not only need a lot of heat energy to heat process water, but also produce a large amount of alkaline sewage with high pH value. The cost of pollution control is high, so many enterprises secretly discharge it for economic benefits.

For a long time, the two sides have operated and developed independently of each other, and the cost of mutual pollution control is not only high, but also the resources cannot be mutually utilized

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