Study on the early warning mechanism for the security of blast furnace hearths  

作　　者：Hong-bo Zhao Shou-feng Huo Shu-sen Cheng 

机构地区：[1]State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing [2]School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing [3]Beijing North Billion Technology Co., LTD.

出　　处：《International Journal of Minerals,Metallurgy and Materials》2013年第4期345-353,共9页矿物冶金与材料学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (No. 61271303);the Fundamental Research Funds for the Central Universities of China (No. FRF-TP-12-029A)

摘　　要：The campaign life of blast furnace （BF） hearths has become the limiting factor for safety and high efficiency production of modern BFs. However, the early warning mechanism of hearth security has not been clear. In this article, based on heat transfer calculations, heat flux and erosion monitoring, the features of heat flux and erosion were analyzed and compared among different types of hearths. The primary detecting elements, mathematical models, evaluating standards, and warning methods were discussed. A novel early warning mechanism with the three-level quantificational standards was proposed for BF hearth security.The campaign life of blast furnace （BF） hearths has become the limiting factor for safety and high efficiency production of modern BFs. However, the early warning mechanism of hearth security has not been clear. In this article, based on heat transfer calculations, heat flux and erosion monitoring, the features of heat flux and erosion were analyzed and compared among different types of hearths. The primary detecting elements, mathematical models, evaluating standards, and warning methods were discussed. A novel early warning mechanism with the three-level quantificational standards was proposed for BF hearth security.

关 键 词：blast furnaces HEARTHS EROSION heat flux WARNING 

分 类 号：TF549[冶金工程—钢铁冶金]