烧结烟气脱硫脱硝一体化技术分析.docVIP

烧结烟气脱硫脱硝技术分析 樊响 殷旭 （北京中冶设备研究设计总院有限公司 北京 100029） 摘要：随着火电厂烟气脱硫，脱硝工作日趋，钢铁冶金行业烧结烟气逐渐引起了人们的重视。本文对目前主要的烟气脱硫脱硝技术进行了较为全面的介绍比较，然后结合冶金行业的实际情况和各同时脱除技术的特点，选择湿式法技术，烟气循环流化床技术和活性炭固相吸附技术为比较适合烧结烟气治理的技术。同时对多种有机结合来治理烟气的工艺做出设想，为以后的研究提供了。 关键词：烧结烟气治理，多污染物一体化脱除，氨法同时脱硫脱硝Technology Analysis of Simultaneous Desulfurization Denitrification for Sintering Flue Gas of Metallurgical Industry Qing Wang， Xu Yin，Xiang Fan Beijing Metallurgical Equipment Research Design Corporation Limited of MCC Group Abstract: The treatment and cleaning technology of sintering flue gas draws more and more attention gradually these years along with the ones in thermal power plants are mature and have been applied. The existing desulfurization and denitrification approaches and operational experience of thermal power plant are not totally suitable for sintering flue gas treatment because of the difference between sintering flue gas and power plant ones, so it is rather significant to develop and research a multiple pollutants removal technology which can get rid of SO2，NO and even Hg and other pollutants in just one facility as flue gas purified step by step bears the shortcomings of flue gas system complex and high construction investment and operational cost. This thesis introduces and compares the main simultaneous desulfurization and denitrification approaches nowadays. And ammonia desulfurization and denitrification integration technology, circulating fluidized bed(CFB) and activated carbon adsorption are recommend after analysis and comparison. It also bring up the idea that different purification technologies could be combined to achieve a higher removal efficiency with lower cost if the combine is done properly, which offers a new vision for further study. Keywords: The treatment of sintering flue gas; Integration Technology of Multi-pollutants removal; Ammonia Desulfurization Denitrification 1.前言 随着我国经济和工业化进程的不断发展，大气污染物排放的问题日益突出。在排放的大气污染物当中，对生态环境和公众健康影响最为严重的有SO2，NOx，二噁英以及工业废气中掺杂的多种重金属等。其中SO2和NOx是酸雨的前体物