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Extracting the core indicators of pulverized coal for blast furnace injection based on principal component analysis

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Abstract

An updated approach to refining the core indicators of pulverized coal used for blast furnace injection based on principal component analysis is proposed in view of the disadvantages of the existing performance indicator system of pulverized coal used in blast furnaces. This presented method takes into account all the performance indicators of pulverized coal injection, including calorific value, igniting point, combustibility, reactivity, flowability, grindability, etc. Four core indicators of pulverized coal injection are selected and studied by using principal component analysis, namely, comprehensive combustibility, comprehensive reactivity, comprehensive flowability, and comprehensive grindability. The newly established core index system is not only beneficial to narrowing down current evaluation indices but also effective to avoid previous overlapping problems among indicators by mutually independent index design. Furthermore, a comprehensive property indicator is introduced on the basis of the four core indicators, and the injection properties of pulverized coal can be overall evaluated.

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Authors and Affiliations

  1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Hong-wei Guo, Bu-xin Su, Jian-liang Zhang, Meng-yi Zhu & Jian Chang

  2. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, China

    Hong-wei Guo & Jian-liang Zhang

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  1. Hong-wei Guo
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  2. Bu-xin Su
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  3. Jian-liang Zhang
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  4. Meng-yi Zhu
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  5. Jian Chang
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Correspondence to Hong-wei Guo.

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Guo, Hw., Su, Bx., Zhang, Jl. et al. Extracting the core indicators of pulverized coal for blast furnace injection based on principal component analysis. Int J Miner Metall Mater 20, 246–252 (2013). https://doi.org/10.1007/s12613-013-0719-2

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  • DOI: https://doi.org/10.1007/s12613-013-0719-2

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