镜铁矿粉在铁矿烧结混合料中的制粒行为

doi:10.13228/j.boyuan.issn0449-749x.20140535

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Abstract The granulation behaviors of specularite fines in ferrous sinter mixture were studied. The results showed that the moisture had a great effect on granulation， and the optimal moisture content decreased with the increasing specularite fines ratio in the mixture. The dynamic results with different specularite fines ratio showed that the adhering load of specularite fines increases rapidly within 3 min and then levels off. With an increase of specularite fines ratio， the duration needs longer time to reach adhering balance. Therefore it’s an effective way to improve the granulation by extending granulating time at high specularite fines ratio. The microstructures of the layer showed that particles of specularite fines scatter all over the layer without combination which infers that the particles of limonite fines act as a binder between specularite fines and improve the strength of the adhering layer. Granulation and specularite fines ratio could be improved by using specularite fines and limonite fines in the mixture properly.

Received: 28 August 2014 Published: 06 July 2015

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TF046

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	Articles by authors
	ZHU De-Qiang
	LI Xiao-Bei
	PAN Jian
	SHI Ben-Jing

Cite this article:

ZHU De-Qiang,LI Xiao-Bei,PAN Jian等. Investigation of granulation behaviors of specularite fines in ferrous sinter mixture[J]. Iron and Steel, 2015, 50(7): 8-14.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20140535 OR http://www.chinamet.cn/Jweb_gt/EN/Y2015/V50/I7/8

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