Temperature Distribution of Iron Ore Pellet Bed in Grate  

作　　者：FENG Jun-xiao XIE Zhi-yin CHEN Yan-mei 

机构地区：[1]School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China

出　　处：《Journal of Iron and Steel Research International》2012年第2期7-11,共5页

基　　金：Sponsored by National High Technology Research and Development Program of China (2007AA05Z215)

摘　　要：The temperature distribution of iron ore pellet bed in grate has a significant effect on pellet production and quality control, but the related work is scarce. A well-designed test was successfully carried out by means of tracking measurement and the temperature distribution and variation in pellet layers were obtained. The effects of blast tem- perature, blast velocity and oxidation reaction on the pellet layer temperature were studied. According to the analy- sis, the inlet air temperature in the up-draught drying zone （UDD） and blast temperature in the Preheating I （PH I） zone should be raised, and the length of the down-draught drying zone （DDD） should be properly increased.The temperature distribution of iron ore pellet bed in grate has a significant effect on pellet production and quality control, but the related work is scarce. A well-designed test was successfully carried out by means of tracking measurement and the temperature distribution and variation in pellet layers were obtained. The effects of blast tem- perature, blast velocity and oxidation reaction on the pellet layer temperature were studied. According to the analy- sis, the inlet air temperature in the up-draught drying zone （UDD） and blast temperature in the Preheating I （PH I） zone should be raised, and the length of the down-draught drying zone （DDD） should be properly increased.

关 键 词：GRATE iron ore pellet bed temperature distribution industrial test 

分 类 号：TQ172.622[化学工程—水泥工业] TD951.1[化学工程—硅酸盐工业]