摘要
采取"细磨处理高铬型钒钛磁铁矿"和"以粒度较细的廉价欧控矿代替现场生产用矿"两种优化措施,考察了高铬型钒钛磁铁矿配量增加对氧化球团质量的影响,探索了高铬型钒钛矿在球团原料中配量增加的可行性.结果表明:"细磨处理高铬型钒钛磁铁矿"和"以粒度较细的廉价欧控矿代替现场生产用矿",当高铬型钒钛矿配量40%时,抗压强度分别为2475 N.个-1和2005 N.个-1,膨胀率为19.2%和16%,皆满足高炉生产要求,可实现该矿在原料中配量增加,能达到高铬型钒钛矿预期90万t/年的处理目标.
The two optimization measures including "fine grinding high chromium vanadium-titanium magnetite" and "replacement of the practical production iron ore with cheap finer Oukong powder(imported)" were adopted.Effects of the percentage of the addition of the high chromium vanadium-titanium magnetite powder on the quality of oxidized pellets were investigated and the feasibility of adding high chromium vanadium-titanium magnetite powder was explored.Through both optimization methods,when the ratio of high chromium vanadium-titanium magnetite was 40%,the compressive strength was 2 475 N per one and 2 005 N per one,respectively,while the reduction expansion ratio was 19.2% and 16% correspondently.These parameters all met the requirements of the practical blast furnace production.So the increasing percent of high chromium vanadium-titanium magnetite in raw material was achieved and the target of 900 000 tons per year of the iron and steel company was reached.
出处
《东北大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2013年第7期956-960,共5页
Journal of Northeastern University(Natural Science)
基金
国家自然科学重大基金资助项目(51090384)
国家高技术研究发展计划项目(2012AA062302
2012AA062304)
中央高校基本科研业务费专项资金资助项目(N110202001)
关键词
高铬型钒钛磁铁矿
细磨
氧化球团
抗压强度
还原膨胀
high chromium vanadium-titanium magnetite
fine grinding
oxidized pellet
compressive strength
reduction swelling