六西格玛在提高宣钢2号高炉喷煤比中的应用  

The Six Sigma Applicationin Increasing Coal Injection Ratio of Xuansteel No.2 BF

作　　者：庞江 褚润林 董超 王海涛 禹忠剑 张如伟 王根 张二星 

机构地区：[1]河钢集团宣钢公司炼铁厂,河北宣化075100

出　　处：《四川冶金》2017年第6期47-50,共4页Sichuan Metallurgy

摘　　要：通过对宣钢2号高炉生产数据的收集与整理,运用6σ管理模式和Minitab分析软件,对高炉喷煤比及所选参数进行C&E矩阵、FMEA和多元回归分析,确定了影响高炉喷煤比的主要因素为风温、风量、富氧量和顶压。通过制定改进方案,实施控制计划,2017年7月份,2号高炉煤比较2016年提高17kg/t,焦比降低12kg/t,降低了生铁成本,取得较好的经济效益。According to the data collected and classified from Xuansteel No. 2 BF, using 6o management mode and Minitah analysis software through C＆E matrix, FMEA and multiple regression analysis to coal injection ratio and the selected parameters, it is determined that the main influence factors of coal injection ratio are blast temperature, blast volume, oxygen enrichment volume and top pressure. Through making rectification and improvement schemes and implementing the control plan, the coal injection ratio of No. 2 BF increased 17 kg/t, coke ratio decreased 12 kg/t in July 2017 compared with 2016. It is achieved to reduce the cost of pig iron and to obtain the better economic efficiency.

关 键 词：六西格玛 Minitab 喷煤比 多元回归分析 

分 类 号：TF538.6[冶金工程—钢铁冶金]