水泥窑用富氧燃烧技术理论分析  

Theoretical Analysis of Oxygen Combustion Technology in Cement Kilns

作　　者：王俊杰[1] 颜碧兰[1] 朱文尚[1] 齐砚勇[1,2] 汪澜[1] 

机构地区：[1]中国建筑材料科学研究总院绿色建筑材料国家重点实验室,北京100024 [2]西南科技大学材料科学与工程学院,四川绵阳621010

出　　处：《节能技术》2015年第3期195-198,202,共5页Energy Conservation Technology

基　　金：国家科技支撑计划项目(2011BAE29B01)

摘　　要：结合水泥窑特点,本文通过理论计算和实验研究分析了富氧燃烧技术效果,并针对某1 200 t/d水泥生产线用富氧燃烧技术进行了探讨。表明水泥窑内煤粉理论燃烧温度、辐射换热量、起始反应温度和燃烧时间的变化取决于煤粉颗粒燃烧时周围氧气的浓度,而该浓度介于窑内整体氧气浓度和一次风氧气浓度之间。在富氧空气氧气含量确定的前提下,富氧燃烧技术的差异决定了该浓度大小。The mainly through effects of oxygen combustion technology in cement industry were analyzed in this paper theoretical calculations and experimental study. On this basis, a 1 200 t/d cement production line was set as an example to verify advantages of the oxygen combustion technology. Result indicated that the changes of theoretical combustion temperature, radiation heat transfer, coal initial reaction temperature and its combustion time depended on the oxygen concentration surrounding the combusting coal particles. The oxygen concentration was between that of the whole kiln and the primary air.

关 键 词：水泥窑 富氧燃烧 理论分析 燃烧温度 辐射换热量 

分 类 号：TK175[动力工程及工程热物理—热能工程] TQ038.1[化学工程]