金属化炉料的高炉低碳冶炼研究现状

doi:10.13228/j.boyuan.issn1006-9356.20230589

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Abstract Low-carbon smelting in blast furnace is the key pathway to achieve the "carbon peaking" and "carbon neutrality" goals in iron and steel industry. Blast furnace smelting with metallized burden (MB) is an effective measure to promote energy saving and consumption reduction in blast furnace, which can reduce the coke ratio and CO₂ emission and increase the yield of blast furnace. The current status of MB blast furnace smelting in terms of theoretical research and application at home and abroad is reviewed. The influence of MB on blast furnace smelting performance, thermal dynamics, energy consumption and yield is revealed. By evaluating the impact of MB blast furnace smelting on the production cost and CO₂ emission of the blast furnace, the analysis of economy and ecology is carried out. Adding MB to blast furnace is conducive to reducing the cost of ton iron. There are some limiting factors such as MB price, natural gas price, furnace burden structure, etc., which have strong advantages in energy saving and environmental protection. Finally, the future development of MB blast furnace smelting and the direction of efforts are briefly analyzed.

Key words： metallized burden direct reduction iron steel scrap blast furnace low-carbon smelting CO₂ emission

Received: 26 September 2023

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	CAI Dawei
	CHEN Qingyue
	PAN Jian
	ZHU Deqing
	YANG Congcong

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CAI Dawei,CHEN Qingyue,PAN Jian等. Research status of low carbon smelting for metallized burden in blast furnace[J]. China Metallurgy, 2024, 34(2): 9-20.

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http://www.zgyj.ac.cn/EN/10.13228/j.boyuan.issn1006-9356.20230589 OR http://www.zgyj.ac.cn/EN/Y2024/V34/I2/9

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