混煤燃烧结渣性研究  

Study on the slagging property of mixed coal combustion

作　　者：郭延红[1,2] 胡志凯 赵怡兴 刘艳妮 Guo Yanhong;Hu Zhikai;Zhao Yixing;Liu Yanni(Department of Chemistry and Chemical Engineering,Yan'an University,Yan'an,Shaanxi 716000,China;Shaanxi Key Laboratory of Chemical Reaction Engineering,Yan'an University,Yan'an,Shaanxi 716000,China)

机构地区：[1]延安大学化工学院,陕西省延安市716000 [2]陕西省化学反应工程重点实验室,陕西省延安市716000

出　　处：《中国煤炭》2019年第9期78-83,共6页China Coal

基　　金：延安大学大学生创新创业训练项目(D2018016)

摘　　要：利用结渣性测定仪对陕北地区的3种煤样及不同比例混合后混煤的结渣性进行测定,利用X射线衍射分析对混煤煤灰的矿物组成进行分析,并考察了空气流量及混合比例对结渣率的影响。研究结果表明,易结渣煤与结渣严重的煤混合可以显著降低易结渣煤的结渣率。同单种煤的结渣特性一样,混煤的结渣率不仅取决于煤灰组成,同样与燃烧的外部条件有关。The slagging ability of three coal samples and mixed coal with different proportions in Northern Shaanxi was determined by slagging tester,and the mineral composition of mixed coal ashes were analyzed by X-ray diffraction analysis,and the influence of air flow rate and mixing ratio on slagging rate was investigated.The results showed that the slagging rate of easily slagged coal can be significantly reduced by being mixed with heavily slagged coal.Like the slagging characteristics of single coal sample,the slagging rate of mixed coal depends not only on the composition of coal ash,but also on the external conditions of combustion.

关 键 词：混煤 结渣性 结渣指标 影响因素 

分 类 号：TK11[动力工程及工程热物理—热能工程]