山钢1 880 m<sup>3</sup>高炉用冶金焦性价模型研究及应用

doi:10.13228/j.boyuan.issn1006-9356.20230428

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Abstract It has been proven that it is not appropriate to evaluate stamp-charging coke in the same way as top-charging coke. In order to accurately grasp the real thermal performance of stamp-charging coke and realize the safe and economic use of stamp-charging coke and top-charging coke in blast furnaces, a metallurgical coke performance model for blast furnaces of Shandong Iron and Steel Group(Shan Steel) was developed based on the existing coke evaluation methods and the structural characteristics of stamp-charging coke. Ten conventional indicators for coke (average particle size, proportion of coke powder (size less than 25 mm), total moisture, volatile matter, ash, sulfur, cold and hot performance (M40, M10, CRI, CSR)) and six structural indicators for stamp-charging coke (high temperature reaction strength CSR₁₃₀₀, optical tissue index OTI, microscopic strength MSI, structural strength SSI, pseudo relative density d, carbon chemical structure d₀₀₂) were included in this model using data induction analysis and fuzzy integrated evaluation methods. By constructing the interrelationships between the six structural indicators of stamp-charging coke and the four indicators of cold and hot performance (M40, M10, CRI, CSR), the 4 indicators of cold and hot performance for tamping coke were corrected to achieve unified method for the evaluation of stamp-charging coke and top-charging coke. The model has been applied to the 1 880 m³ blast furnace of Shan Steel and the prediction results given by the model plays guiding role in scientific use for various types of coke.

Key words： blast furnace metallurgical coke cost performance evaluation model stamp-charging coke structural indicator

Received: 14 July 2023

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	Articles by authors
	LI Jianyun
	ZOU Chong
	LIANG Dong
	JI Guanggang
	LIU Zhiwei

Cite this article:

LI Jianyun,ZOU Chong,LIANG Dong等. Research and application for cost performance evaluation model of metallurgical coke for Shan Steel 1 880 m³ blast furnace[J]. China Metallurgy, 2023, 33(11): 98-105.

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http://www.zgyj.ac.cn/EN/10.13228/j.boyuan.issn1006-9356.20230428 OR http://www.zgyj.ac.cn/EN/Y2023/V33/I11/98

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