高炉焦炭石墨化程度及其影响因素的研究进展

doi:10.13228/j.boyuan.issn0449-749x.20190518

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Abstract Coke has always been an irreplaceable raw fuel in the ironmaking process of blast furnace, and graphitization is an important degradation mechanism in blast furnace. Shortage of high quality coking coal and the trend of large blast furnace put forward higher requirements for the quality of coke. It is important to make clear the degradation mechanism of coke and graphitization mechanism in the blast furnace and to control the coke quality reasonably, which can reduce the iron-making cost and ensure the stable operation of the blast furnace. The effects of heat treatment temperature, coke ash content and slag iron composition on the graphitization degree of coke were described in detail. The current understanding about coke graphitization is limited in macro-scale, while further study is required to understand the graphitization mechanism in micro-scale, especially the about the catalytic graphitization behavior by slag, metal and minerals.

Key words： ironmaking blast furnace coke graphitization

Received: 27 November 2019

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	Articles by authors
	LI Ke-jiang
	LI Hong-tao
	ZHANG Jian-liang
	SUN Min-min
	WANG Zi-ming
	JIANG Chun-he

Cite this article:

LI Ke-jiang,LI Hong-tao,ZHANG Jian-liang等. Research progress on graphitization degree of blast furnace coke and its influencing factors[J]. Iron and Steel, 2020, 55(7): 23-33.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190518 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I7/23

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