分解炉中NO生成模拟与优化  

Numerical simulation of NO in precalciner and its optimization

作　　者：黄来[1] 陆继东[1] 李卫杰[1] 胡芝娟[2] 王世杰[1] 肖贤云[1] 

机构地区：[1]华中科技大学煤燃烧国家重点实验室,湖北武汉430074 [2]天津水泥工业设计研究院,天津300400

出　　处：《化工学报》2006年第11期2624-2630,共7页CIESC Journal

基　　金：国家高技术研究发展计划项目(2002AA529150).~~

摘　　要：针对水泥行业中水泥分解炉产生NO的过程进行了机理性分析,同时推导了描述分解炉中NO生成的机理性模型,并对分解炉中的NO生成进行了全三维模拟研究.模拟结果与现场测试结果进行了比较,验证了模拟的合理性.对分解炉的生料入口位置进行了改造,在不影响生产的前提条件下,对单独分风、分料和同时分风分料时降低分解炉内NO生成的情况进行了模拟优化,分析得到了分料方法是降低分解炉中NO的最有效途径的结论,为降低水泥分解炉中NO排放提供了实用的参考依据.The mechanism of NO release in the cement precalciner was analyzed and a mechanism model was developed. The NO release was simulated based on full scale modeling for the precalciner, and the modeling results were compared with measurements to validate the simulation method. The cement raw meal inlet was relocated. Without affecting the operation, simulation was made to predict the decrease of NO under staged air, staged fuel and simultaneous staged air staged fuel. It was found that the case of staged fuel was more effective. The results are useful for decreasing NO release in the precalciner.

关 键 词：分解炉 NO 数值模拟 优化 

分 类 号：TQ172[化学工程—水泥工业]