基于六西格玛管理法在降低焦比方面的分析  

An analysis of decreasing coke rate based on six sigma management

作　　者：于河[1] 杨鑫[2] 

机构地区：[1]辽宁对外经贸学院,辽宁大连116052 [2]东北大学材料与冶金学院,辽宁沈阳110819

出　　处：《中国冶金》2015年第10期73-76,共4页China Metallurgy

摘　　要：以六西格玛管理理念为基础,利用Minitab软件对2 500m3高炉生产焦比进行过程能力分析,确定焦比过程能力不足,有很大的降低空间,并通过失效矩阵分析、相关分析和回归分析确定影响焦比的主要因素有煤比、富氧率和入炉矿石品位,并利用试验设计(DOE)确定当煤比为180kg/t、富氧率为2.9%、入炉品位为57.5%时,焦比达到最低值,以此为现场生产提供参考和指导。The process capability analysis was applied to analysis the coke rate during the production of 2 500 m3 blast furnace by the soft Minitab based on the six sigma management concept.It was concluded that the process capability of coke rate was not enough,and there was a great space to reduce the coke rate.And the main influence factors of coke rate were coal ratio,oxygen enrichment percentage and iron content of charged iron ore which was obtained by failure matrix analysis,correlation analysis and regression analysis.Meanwhile,the coke rate reached the lowest value,when the coal ratio was 180 kg/t,the oxygen enrichment was 2.9% and the iron content of charged iron ore was 57.5% which were determined by using DOE.Then all of this could provide reference and guidance for field production.

关 键 词：六西格玛 焦比 

分 类 号：TF53[冶金工程—钢铁冶金]