Study On The Process Of Desulfurization And Denitrification Of Coal Gangue Power Generating Units Located At Zunneng

With the global warming and environmental pollution continues to intensify,the world are closely watching the climate change to strengthen the protection of the environment,China's economic and social development and improvement of people's living standards,the state proposed to build resource conservation,the environment Friendly,ecological civilization of the modern society,the country's environmental policy is also improving,increasingly strict.Especially in recent years,"haze"enveloped the whole society,the prevention and control of air pollution is imminent,and thermal power plant as an important source of air pollutants,but also need to strengthen energy conservation,deepening pollution control work to achieve soot,sulfur dioxide,nitrogen Oxide discharge standards.In this paper,the characteristics of the circulating fluidized bed boiler in the quasi-energy gangue power plant and the situation of the unit are analyzed.The situation of the circulating fluidized bed boiler coal quality,the combustion emission and the power generation load are analyzed.In the face of soot,sulfur dioxide,nitrogen oxides The desulfurization process of limestone-gypsum was selected and analyzed.The results showed that the desulfurization process of limestone-gypsum was the best and the desulfurization and denitrification process,which was suitable for circulating fluidized bed boiler,(SNCR)denitrification process of denitrification agent,and the difficulties of the induced fan transformation,the anti-corrosion of the chimney,the influence of SNCR on boiler efficiency,the analysis of ammonia escape and the treatment of waste water were discussed.The results show that the desulfurization efficiency is 97%and the denitrification efficiency is 52%.The emissions of soot,sulfur dioxide and nitrogen oxides all meet the emission requirements of "Standard for Emission of Air Pollutants in Thermal Power Plants"(GB13223-2011)Good social and environmental benefits.Enterprises not only enjoy the subsidy price of desulfurization and denitrification,but also formed the optimal operation and adjustment measures for the economic operation of the desulfurization and denitrification system based on the optimal ratio of calcium to sulfur,the accumulation of soot,sulfur dioxide and nitrogen oxides,For the further development of ultra-low emissions to lay a solid foundation.