鞍钢高炉低镁渣冶炼技术研究与应用

doi:10.13228/j.boyuan.issn0449-749x.20170323

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Abstract In order to improve technical and economic indexes of blast furnace， the metallurgical properties of low [w(MgO)] slag were studied and evaluated systematically by laboratorial and industrial test in Ansteel. The results show that under the low Al2O3 load in blast furnace， the[w(MgO)]in slag is 4%-7%，and the melting temperature of all the slag is less than 1 350 ℃. When the temperature of slag is 1 500 ℃， the viscosity of the slag can satisfy the need of blast furnace in theory with[w(MgO)]over 3%. The best basicity of slag is about 1.245. Under the production condition in industry， the[w(MgO)]of slag is controlled in 4.5%-5.0%， and the viscosity of slag is about 0.16-0.20 Pa·s. The desulfurization capacity of the slag may not fall down when[w(MgO)]in slag decreases by optimizing basicity of slag. The production cost from BF operation decreases obviously and 17 kg/t（Fe） of the slag ratio is almost reduced by adopting new technology. So， it helps to implement green sustainable development.

Received: 21 June 2017 Published: 16 March 2018

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	Articles by authors
	LIU Jie
	DIAO Dong-Meng
	ZHOU Meng-Shun
	ZHANG Hui
	XU Li-Bing
	DI Li-Wei
	CHE Yu-Man

Cite this article:

LIU Jie,DIAO Dong-Meng,ZHOU Meng-Shun等. Research and application of blast furnace’s low[w(MgO)]slag in Ansteel[J]. Iron and Steel, 2018, 53(3): 22-26.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20170323 OR http://www.chinamet.cn/Jweb_gt/EN/Y2018/V53/I3/22

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