燃煤环形套筒窑内煤灰熔融特性的初步分析  

Preliminary Analysis of Ash Fusion Character in Coal Combustion ASK

作　　者：肖奋飞 陈小娟 张林进 

机构地区：[1]江苏中圣园科技股份有限公司,江苏南京210009

出　　处：《工业炉》2014年第4期25-28,39,共5页Industrial Furnace

摘　　要：综述了煤灰熔融特性的研究现状,比较了不同酸性氧化物、碱性氧化物对煤灰熔融性的影响规律,简述了煤灰熔融性改变过程中的反应机理。采用煤灰熔点计算公式对东盛科技的煤粉进行了灰熔点计算,得到了煤灰熔点随CaO含量的变化趋势。结合套筒窑生产工艺,初步分析了套筒窑内煤灰熔点降低机理及采用快速升温液态排渣的可行性。The research status of ash fusion character was summarized,the effect law of different acidic oxides on ash fusion was compared with basic oxides,and the reaction mechanism during the change process was stated.The coal fusion temperature of Baotou Dongsheng Technology Co.,Ltd,was calculated using calculation formula,and the trend along with the change of CaO content was obtained.Combined with the production process of annular shaft kiln（ASK）,the coal ash fusion temperature decrease mechanism and the feasibility of slag tapping were preliminary analyzed.

关 键 词：煤粉燃烧 套筒窑 煤灰熔点 

分 类 号：TK16[动力工程及工程热物理—热能工程]