兰炭用作高炉喷吹燃料的试验分析

doi:10.13228/j.boyuan.issn1006-9356.20190223

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Abstract In order to study the feasibility of semi-coke used as fuel for blast furnace injection in an iron and steel enterprise, the performance such as grindability, explosibility, combustion and reactivity of semi-coke and coal is tested. The results showed that the proximate analysis indexes of semi-coke were close to anthracite overall, which met the index requirements for BF injection. Compared with anthracite, semi-coke had slightly higher ash content, lower sulfur content, slightly lower calorific value and higher volatile matter. The grindability of semi-coke was lower than that of anthracite, it should be combined with anthracite B, anthracite C and anthracite F with better grindability. Semi-coke belonged to non-explosive coal, and there was no potential safety hazard for injection. The combustion of semi-coke was lower than that of anthracite, but the replacement of anthracite E by it will not affect the injection effect. The reactivity of semi-coke is better, which will improve the overall reactivity of injected fuel and protect coke. The reasonable injection ratio of semi-coke should be controlled within 20%.

Key words： semi-coke blast furnace grindability combustion reactivity

Received: 08 May 2019

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	Articles by authors
	LI Jie
	LI Xiao-jing
	LI Bang-ping
	SONG Can-yang
	ZHANG Xiao-ping
	QIN Xue-wu

Cite this article:

LI Jie,LI Xiao-jing,LI Bang-ping等. Experimental analysis on use of semi-coke as fuel for blast furnace injection[J]. China Metallurgy, 2019, 29(12): 14-18.

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http://www.zgyj.ac.cn/EN/10.13228/j.boyuan.issn1006-9356.20190223 OR http://www.zgyj.ac.cn/EN/Y2019/V29/I12/14

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