包钢高炉喷吹煤粉利用率的测定  

Measurement of Utilization Rate of Injected Pulverized Coal of Baotou Steel BF

作　　者：杨帆[1] 白晓光[1] 于恒亮 郑占斌[1] 张建良[2] 党晗 徐润生[2] YANG Fan;BAI Xiaoguang;YU Hengliang;ZHENG Zhanbin;ZHANG Jianliang;DANG Han;XU Runsheng(Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia,China;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]内蒙古包钢钢联股份有限公司,内蒙古包头014010 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《炼铁》2024年第1期63-67,共5页Ironmaking

摘　　要：利用透射光偏光显微镜,对包钢高炉重力除尘灰、旋风除尘灰和布袋除尘灰中的碳素种类进行定性和定量分析,以测定高炉喷吹煤粉利用率。测定结果表明,3号高炉喷吹煤粉利用率上下限分别为89.03%和79.46%,4号高炉的喷吹煤粉利用率上下限分别为91.51%和84.14%。认为,3号高炉和4号高炉所使用喷吹煤粉来自同一系列,因此可以通过采取稳定煤粉粒度波动、优化富氧鼓风和提高入炉焦炭强度等措施,来提高喷吹煤粉利用率。To measure the actual utilization rate of pulverized coal injected to Baotou Steel BF,transmitted light polarization microscope is adopted to qualitatively and quantitatively analyze the carbon category of the dust collected by the gravity precipitator,cyclone and bag filter during operation of Baotou Steel BF.The analysis results reveal that the upper and lower utilization rate limit of injected pulverized coal of No.3 BF is 89.03%and 79.46%respectively,and that of No.4 BF is 91.51%and 84.14%respectively.It is believed that the pulverized coal injected to No.3 and No.4 BF come from the same series,therefore,the utilization rate of injected pulverized coal can be improved by stabilizing the pulverized coal particle size,optimizing the oxygen-enrich blasting and improving the strength of charged coke.

关 键 词：高炉 煤比 喷吹煤粉利用率 除尘灰 未燃煤粉 

分 类 号：TF53[冶金工程—钢铁冶金]