Waste heat driving based boiler smoke exhaust total component treatment and resource recycling mode

Abstract

The invention discloses a waste heat driving based boiler smoke exhaust total component treatment and resource recycling mode, and belongs to the technical fields of flue gas treatment and circular economy. For solving the problems that flue gas of a boiler carries much vapour and a waste heat resource of the vapour, plume carries more particulate pollutants, especially a large amount of penetrable particulate matters and acidic gases in the current situation, the condensed water, the acidic gases such as a large amount of sulfur dioxide in the flue gas plume, filtratable particulate matters,coagulable particulate matters capable of penetrating the particulate matters, soluble particulate matters and the like are recycled by adopting a cascade condensation water film decontamination modewhile a high-temperature dust collector is adopted to recycle flue dust, condensation water is used for taking and carrying, comprehensive recovery of water resources and conversion into building materials, industrial raw materials and the like are finally realized through a waste heat evaporation and desalination crystallization device and the like, the waste heat is recycled to be used for driving a flue gas resource development process, and is used for heat supply, heating process water or combustion-supporting air and the like, the comprehensive resource utilization of hot, wet and hazardous wastes is realized, and near zero cost operation is realized and even generation of economic benefit of energy saving and resource saving are achieved.

Description

technical field [0001] The invention relates to a waste heat-driven full-component treatment of boiler exhaust smoke and a resource recycling method, belonging to the technical fields of flue gas treatment and circular economy. Background technique [0002] Fumes from boilers that use fossil fuels such as coal and natural gas for heating, and various industrial kilns contain a large amount of water vapor and many gaseous and solid pollutants, which have become an important source of pollutants that affect the atmospheric environment. Smog and visual whitening are the focus of environmental protection issues that the public and policy departments pay attention to, while enterprises also pay attention to the technical feasibility, economic feasibility and secondary pollution in operation, that is, the waste liquid and solid waste. Further processing methods and their costs. However, the current knowledge and understanding of the causes of smog, the mechanism and degree of smo...

AI Technical Summary

Problems solved by technology

[0035] The purpose and task of the present invention is to adopt hierarchical processing system technology and a variety of key new technology achievements in view of the problems that the analysis of the above-mentioned boiler exhaust smoke shows that there are a large number of soluble salts escaping, which significantly affects the formation of smog and air pollution. , realize high-temperature and efficient dust removal, high-efficiency denitrification, cascade full-component treatment driven by waste heat, zero discharge of waste water driven by waste heat and resource recovery, etc., effectively reduce water vapor, soluble salts, acid gases, etc. Escape pollutants, so as to realize the fundamental haze prevention and whitening treatment of boiler exhaust equipment, and recycle the removed pollutants, realize environmental protection benefits and circular economy simultaneously, and transform the environmental protection treatment of flue gas into the development of flue gas Sustainable Economic Development of Resources

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