HIsmelt熔融还原高磷铁矿铁水含碳量影响因素研究  

Research on Influence Factors of Carbon Content of the Molten Iron in HIsmelt Melting Reduction

作　　者：郈亚丽[1] 王华[1] 卿山[1] 李慧斌[1] 

机构地区：[1]昆明理工大学冶金与能源工程学院冶金节能减排教育部工程研究中心,昆明650093

出　　处：《材料导报（纳米与新材料专辑）》2011年第2期234-237,共4页

基　　金：国家自然科学基金(51064015);云南省自然科学基金(2007E183M)

摘　　要：通过高温电阻炉对铁水含碳量的影响因素进行研究,考察碱度、温度、碳氧比等因素对铁水含碳量的影响规律。结果表明,铁水含碳量可以降到0.1%。当温度为1550℃、碱度为1.3、通氧时间为8min、保温时间为30min时,随着碳氧比的增加,铁水含碳量从0.022%增加到1.1%,其影响较显著;碱度在0.7～1.3之间,铁水含碳量比较稳定,继续增加碱度,铁水含碳量迅速增加;随着温度的升高,铁水含碳量增加,尤其在1550～1600℃之间,铁水含碳量增加比较快;随着保温时间的延长,铁水含碳量在0.38%～1.4%之间波动。The influence of carbon content of the molten iron has been investigated at the high electric resistance furnace. All sorts of factors including the basicity, temperature, C/O molar ratio to the influence law of carbon content of the molten iron were examined. Results show that the carbon content of the molten iron can be decreased to 0.1%. With C/O molar ratio increasing, the carbon content can increase from 0. 022 % to 1.1 %, under the conditions of 30 min holding time at 1550℃, basicity R of 1.3, C/O molar ratio of 1.0 and oxygen enriched flow rate of 250L/h. Therefore, the effect of C/O molar ratio is remarkable. The carbon content is relatively stable at basicity R between 0. 7 and 1.3 and the carbon content raise rapidly with continuing to increase basicity R. As the temperature elevated, the carbon content increased. It increased much faster especially between 1550℃ and 1600℃. The carbon content fluctuates between 0. 38% and 1.4% under the condition of increasing holding time.

关 键 词：HISMELT 铁水 碳含量 

分 类 号：TQ021.9[化学工程]