总第412期 October 20IO METAL MINE 2010年第10期 鲕状赤铁矿深度还原过程中铁粒生长特征研究 贾
岩1
倪
文1
郑
斐2
封金鹏1
王中杰1
徐承焱1 (;) 摘要针对国内某种难选鲡状赤铁矿的特点,进行了深度还原试验,对其深度还原过程中铁粒的生长特征 进行了研究,探讨了还原温度、还原时间、二元碱度等不同试验因素对焙烧产物中铁粒的聚集、兼并和长大的影响。 研究结果表明,提高还原温度和延长还原时问有利于铁颗粒的聚集和长大,过高的二元碱度不利于铁颗粒的兼并 和生长。 关键词鲕状赤铁矿炼铁深度还原铁粒 The Growth Characteristics of
Metallic
Iron Grains in Depth Reduction of Oofific Hematite Jia Yanl
Ni Wenl
Zheng Fei2
Feng Jinpen91
Wang Zhongjiel
Xu Chengyanl ( ofScience and Technology Belling; Textile Indmt,y Engineering Institute) Abstract Based
the characteristics of 80me unwieldy oolitic hematite
depth reduction-ic sep- aration carried The growth characteristics of metallic iron gains in depth reduction of unwieldy oolitic hematite a托 the effects of different experimental conditions,such reduction temperature,reduction time,binary ba- sicity the iron grains growth a陀discussed in
results show that raising the reduction temperature and prolon— gins the reduction time beneficial the iron smins the over—high binary basicity is bad for the iron grain growth. Keywords Oohtic hematite,Iron-smelting,Depth reduction,Iron grains 鲕状赤铁矿由于其独特的矿物结构特点…,采 用常规选别方法(国内主要进
