首钢铁矿粉的高温特性影响因素分析

来源期刊：钢铁2010年第12期

论文作者：赵志星 裴元东 潘文 蒋海冰 李洪革

文章页码：12 - 16

关键词：铁矿粉； 烧结； 高温特性； 影响因素

Key words：iron ore； sinter； high temperature property； influencing factor

摘    要：铁矿粉的同化性、液相流动性等高温特性,较常温特性更能反映铁矿粉在高温烧结过程中的行为,对优化烧结配矿有重要意义。对2000年以来首钢使用的各种铁矿粉的高温特性进行测定、比较和分析,结果表明:铁矿粉的结晶水含量对其同化性有明显的促进作用;等碱度条件下,高SiO₂含量的铁矿粉的液相流动性较好,前提是CaO配加量不超过CaO-Fe₂O₃二元系共晶温度点对应的CaO含量。

Abstract: The high temperature properties of iron ore,such as assimilation,liquid phase fluidity,can reflect behaviours at high temperature during sintering,compared with the normal temperature properties of iron ore,so the high temperature properties of iron ore are significant for optimizing ore sintering matching.High temperature properties of ores used in Shougang since 2000 were measured,compared and analyzed,with results showing that combined water of ore promotes the assimilation of ore,and ore with high SiO₂ content has high liquid phase fluidity under the same basicity,on the condition that CaO addition is no more than CaO amount according to eutectic temperature in CaO-Fe₂O₃.