氧化镁对高铝渣稳定性影响

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Abstract In order to lower cost and enlarge ore resource，the high aluminum final slag was systematically studied in this paper．Through viscosity test，kinetics activation energy calculation，thermal dynamics calculation，crystallization and changing rules of constituents of different slag were analyzed．The stability of slag has complicated relation with constituents，though the composition of ultra-large furnace is close with each other，the changing rules of viscosity are quite different．Normally，in high temperature the activation energy of different slag differs a little，between 160 000~170 000 J，and in low temperature the difference is significant．The stability of high aluminum low magnesium slag is higher than high aluminum and high magnesium slag，and if lowering the magnesium content the metallurgical properties of blast furnace burdens could be improved and slag ratio could be also lowered，which is effective measure to lower cost．Lowering the magnesium content in final slag is to increase the efficiency of magnesium．High aluminum slag doesn’t mean low stability，and by adjusting other constituents the blast furnace operation can adapt to high aluminum slag．

Received: 26 June 2013 Published: 28 April 2014

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	Articles by authors
	ZHI Cheng-Lin
	CI Yi-Fan
	JIANG Zhe
	YU Shun

Cite this article:

ZHI Cheng-Lin,CI Yi-Fan,JIANG Zhe等. Effect of MgO on High Aluminous Slag Stability[J]. Iron and Steel, 2014, 49(4): 18-24.

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http://www.chinamet.cn/Jweb_gt/EN/ OR http://www.chinamet.cn/Jweb_gt/EN/Y2014/V49/I4/18

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