A deep treatment system for sintering/pellet wet desulfurization flue gas

Abstract

The invention provides a thorough treatment system for sintering / pelletizing wet-desulphurization flue gases and belongs to the technical field of environmental engineering. The thorough treatment system comprises a middle flue, a guide plate, a system inlet, an air flow uniform plate, a bundle-type dust and mist removing device, a honeycomb-type dust and mist removing device, a system flue gas outlet, a backwash water device and a backwash water drainage outlet; the guide plate and the air flow uniform plate are respectively mounted in the middle flue and the system so as to change flow direction of the flue gases and uniform distribution of the flue gases in the bundle-type dust and mist removing device and the honeycomb-type dust and mist removing device; the bundle-type dust and mist removing device is connected with the honeycomb-type dust and mist removing device, a traditional wet electric dust controller is substituted, on-off state of the honeycomb-type dust and mist removing device can be regulated any time according to velocity of the flue gases, and energy consumption is greatly reduced. By the arrangement, problems about sintering and pelletizing wet-desulphurization flue gas trailing and that the traditional wet electric dust controller is prone to scaling, corrosion, pulverization, high energy consumption and the like in iron and steel industry are solved.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a system for deep treatment of sintering / pellet wet desulfurization flue gas. Background technique [0002] The iron and steel industry is a highly material- and energy-intensive industry. It is not only a major consumer of raw materials, but also a major energy-consumer and polluter. In 2015, my country's crude steel output exceeded 800 million tons, exceeding 50% of the world's crude steel output. The energy consumption of my country's iron and steel industry accounts for about 23% of the total industrial energy consumption and 16% of the country's total energy consumption. Pollutant emissions account for about 17% of the country's total emissions. It is a key industry that the country focuses on promoting energy conservation and emission reduction. [0003] Among the 20 cities with the most serious air pollution in my country, 17 cities have steel enterprise...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems of sintering in the iron and steel industry, the tailing problems of wet desulfurization of pellet flue gas, and the problems of scaling in traditional wet electrostatic precipitators, corrosion, pulverization, and high operating costs, the invention provides a sintering / ball Group wet desulfurization flue gas advanced treatment system

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