电炉炼钢钢铁原料的现状分析与展望

doi:10.13228/j.boyuan.issn0449-749x.20210170

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Abstract As the core technology of short-path steelmaking, electric arc furnace steelmaking (EAF) has the characteristics of high iron recycling rate, low energy consumption and good environmental benefits. Promote the healthy development of EAF steelmaking, which is in line with the requirement of green development of iron and steel to achieve the goal of emission peak and carbon neutrality. EAF has various and flexible raw iron and steel materials for charging than the converter, and which affect directly the process control of EAF smelting. To create a good starting condition for excavating and exerting fully the advantages of EAF, the application, advantages and disadvantages of scrap, hot metal and direct reduced iron (DRI) as the main raw materials were analyzed from their production and storage, process operation, energy consumption, environmental protection and other aspects base of the current situation and characteristics of the main steel raw materials for EAF, and it is as a key point that the characteristics and technical indexes of direct reduction pellets are compared and analyzed, which provided a theoretical basis for exploring and optimizing the structure of raw iron and steel materials of EAF steelmaking. The scrap and direct reduced pellets will turn into the main raw materials of short-path steelmaking in the future considering resource consumption and environmental protection. Combined with the gradual maturation of iron and steel recycling technology and industrial specialization, and the development of more green hydrogen metallurgy technology, the new technologies, including comprehensive recycling technology of scrap, production technology of high-grade clean pellet as well as direct reduction technology of hydrogen shaft furnace, will be the development direction of production technology of iron and steel raw materials charged for EAF. Meanwhile, matching new and high efficient intelligent electric arc furnace smelting technology will be the development direction of short-path steelmaking in the future.

Key words： electric arc furnace steelmaking scrap hot metal direct reduced iron clean pellet hydrogen metallurgy

Received: 25 March 2021

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	WU Yao-guang
	XIAO Bu-qing
	ZHU Li-guang
	WANG Yan

Cite this article:

WU Yao-guang,XIAO Bu-qing,ZHU Li-guang等. Current situation analysis and prospect of iron and steel raw material for electric arc furnace steelmaking[J]. Iron and Steel, 2021, 56(11): 55-62.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20210170 OR http://www.chinamet.cn/Jweb_gt/EN/Y2021/V56/I11/55

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