燃煤锅炉烟气脱硝技改研究与实践

Research and practice of flue gas denitration technology for coal-fired boiler

对燃煤锅炉烟气脱硝技术进行了分析,指出了燃烧前脱硝技术、燃烧中脱硝技术、燃烧后脱硝技术的特点及适用性,并阐述了低氮燃烧系统技改、SNCR系统技改、SCR系统技改的具体工艺流程,指出在应用SCR脱硝技术改造之后,系统的脱硝效率达到了85%,取得了良好的脱硝效果。

For coal-fired boiler flue gas denitration technology were analyzed, pointed out that the pre combustion denitration technology, combustiondenitration technology, combustion characteristics of denitration technology and applicability, and expounds the concrete process of low NO^combustion system for technological innovation, technological transformation, SNCR system SCR system transformation process, based on the analysisof denitration transformation after SCR application, the system denitrification efficiency reached 8 5 % , achieved a good effect on removingnitrate.