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

Hong-bo Zhao; Shou-feng Huo; Shu-sen Cheng

doi:10.1007/s12613-013-0733-4

International Journal of Minerals, Metallurgy, and Materials ›› 2013, Vol. 20 ›› Issue (4) : 345 -353. DOI: 10.1007/s12613-013-0733-4

Article

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

Hong-bo Zhao ¹⁷³³^,²⁷³³^,^a
, Shou-feng Huo ²⁷³³^,³⁷³³
, Shu-sen Cheng ²⁷³³

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Abstract

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.

Keywords

blast furnaces / hearths / erosion / heat flux / warning

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Hong-bo Zhao, Shou-feng Huo, Shu-sen Cheng. Study on the early warning mechanism for the security of blast furnace hearths. International Journal of Minerals, Metallurgy, and Materials, 2013, 20(4): 345-353 DOI:10.1007/s12613-013-0733-4

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