高炉焦炭在铁水中溶解行为研究现状及展望

doi:10.13228/j.boyuan.issn0449-749x.20190283

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Abstract Under the condition of high melting intensity of current and future blast furnace, enhancing the coke dissolution rate and improving the carbon saturation in hot metal are critical to weaken the attack of unsaturated melt at the lining and ensure the smooth operation of hearth of blast furnace, which can also provide some of the heat source for the downstream steelmaking process. The experimental and simulation methods of coke dissolution into molten iron were summarized, and influencing factors of the coke dissolution rate, such as coke structure and properties, minerals in coke and physical properties of molten iron, were analyzed in detail. The results show that the increase of carbon crystallinity and hot metal temperature are beneficial to the dissolution of coke, while the presence of minerals in coke and impurity elements S and P in molten iron inhibit the further carburization. The research results can provide a reference for the production operation of carburization in BF and the energy-saving and emission reduction in the iron and steel industry.

Key words： iron-making blast furnace coke hot metal carburization

Received: 24 June 2019

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	ZHANG Jian-liang
	SUN Min-min
	LI Ke-jiang
	LI Hong-tao

Cite this article:

ZHANG Jian-liang,SUN Min-min,LI Ke-jiang等. Present situation and prospect of dissolution behavior of metallurgical coke in blast furnace hot metal[J]. Iron and Steel, 2020, 55(4): 1-11.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190283 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I4/1

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