中南大学学报（自然科学版）2013，Vol.44Issue(2)：449-455,7.
高镁球团焙烧特性及其固结强化机理
Roasting characteristics of magnesium pellets and mechanism of strengthening concretion
摘要
Abstract
The roasting characteristics of magnesium pellets were studied. The results show that the mechanical strength of preheated and roasted pellets of magnetite pellets and hemetite pellets decrease as MgO content increases by adding serpentine, MgO powder and magnesite, which indicates that MgO content goes against the concretion strength of pellets. Adding calcium-containing and boron-containing materials can increase the strength of magnesium pellets. The strength of preheated and roasted pellets increases at first, and then decreases as the basicity increases, and reaches the maximum when basicity is 0.4-0.5. The strength increases as the boron content increases. The liquid generated by adding calcium-containing or boron-containing materials can improve the spread of Mg2+ and Fe3+, which is beneficial for magnesium additive mineralization and hematite recrystallization, and then improve the strength of magnesium pellets.关键词
含镁球团/焙烧/离子扩散/强度/晶粒Key words
magnesium pellets/ roast/ ionic diffusion/ strength/ grain分类
矿业与冶金引用本文复制引用
范晓慧,谢路奔,甘敏,陈许玲,袁礼顺..高镁球团焙烧特性及其固结强化机理[J].中南大学学报（自然科学版）,2013,44(2):449-455,7.基金项目
教育部新世纪优秀人才支持计划基金资助项目(NCET-05-0630) （NCET-05-0630）
湖南省研究生学位论文创新资助项目(1343/74333001114) （1343/74333001114）
中南大学优秀博士学位论文扶植项目(2010ybfz058) （2010ybfz058）
国家自然科学基金与上海宝钢集团公司"钢铁联合研究基金"资助项目(51174253) （51174253）
