热分析试验评价节煤剂对煤粉燃烧过程的影响  

Thermal analysis test evaluation of the effect of coal saving agents on the combustion process of coal powder

作　　者：吴丽丽 陶从喜 何坤富 滕灼光 周靖 彭蓉 Wu Lili;Tao Congxi;He Kunfu;Teng Zhuoguang;Zhou Jing;Peng Rong(China Resources Cement Technology R&D(Guangxi)Co.,Ltd.,Nanning,530008,China)

机构地区：[1]华润水泥技术研发(广西)有限公司,广西南宁530008

出　　处：《水泥工程》2023年第3期12-15,共4页Cement Engineering

摘　　要：为探究节煤剂产品特性,本文利用热分析方法讨论了3种节煤剂对煤粉燃烧过程的影响。结果表明,添加不同节煤剂,^(#)1、^(#)2、^(#)3煤样着火点分别降低了9.2℃、11.2℃和88.9℃,并且提高放热效率。燃尽指数表明,节煤剂使^(#)1和^(#)2煤样燃尽性能提高,而^(#)3燃尽性能变差。动力学计算表明,节煤剂能够降低煤粉从着火点到最大燃烧速率阶段的反应活化能,从而提高该燃烧过程的反应速率。In order to explore the characteristics of recent coal-saving agents,the influence of three coal-saving agents on the pulverized coal combustion is discussed by the thermal analysis.The results showed that the ignition points of^(#)1,^(#)2 and^(#)3 coal samples were reduced by 9.2℃,11.2℃ and 88.9℃ respectively with the addition of different coal-saving agents,and the heat release efficiency was improved.The burnout index shows that the coal-saving agent improves the burnout performance of^(#)1 and^(#)2,while the burnout performance of^(#)3 decreases.Kinetic calculations show that the coal-saving agent can reduce the reaction activation energy of pulverized coal from the ignition point to the maximum combustion rate of temperature,thereby increasing the reaction rate of the combustion process.

关 键 词：热分析法 煤粉燃烧 着火温度 活化能 催化燃烧 

分 类 号：TQ172.6[化学工程—水泥工业]