Cold Model of Coal Gas Component Concentration Distribution in Blast Furnace Raceway  

作　　者：ZHANG Sheng-fu WEN Liang-ying BAI Chen-guang QIU Gui-bao HU Mei-long LU Xue-wei 

机构地区：[1]College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China

出　　处：《Journal of Iron and Steel Research International》2009年第6期1-6,共6页

基　　金：Item Sponsored by National Natural Science Foundation of China and Shanghai Baosteel Group Co Ltd United Research Foundation(50374085)

摘　　要：Primary distribution of coal gas in blast furnace raceway has an important effect on blast furnace ironmaking process. The coal gas component concentration distribution was studied experimentally using a three-dimensional cold model. The results showed that CH4 concentration diminishes along with the height increasing on vertical section of raceway, and the concentration is the highest in the bottom of raceway. CH4 concentration increases gradually along.the raceway depth with the lowest concentration value in front of the tuyere. The distribution of CH4 concentration has different characteristics in different raceway zones.Primary distribution of coal gas in blast furnace raceway has an important effect on blast furnace ironmaking process. The coal gas component concentration distribution was studied experimentally using a three-dimensional cold model. The results showed that CH4 concentration diminishes along with the height increasing on vertical section of raceway, and the concentration is the highest in the bottom of raceway. CH4 concentration increases gradually along.the raceway depth with the lowest concentration value in front of the tuyere. The distribution of CH4 concentration has different characteristics in different raceway zones.

关 键 词：blast furnace RACEWAY coal gas component concentration distribution 

分 类 号：TQ051.13[化学工程] TF5[冶金工程—钢铁冶金]