褐铁矿烧结基础性能的研究  

Study on Fundamental Properties of Limonite in Sinter Process

作　　者：洪益成[1] 

机构地区：[1]钢铁研究总院先进钢铁流程及材料国家重点实验室,北京100081

出　　处：《钢铁研究学报》2010年第9期9-12,共4页Journal of Iron and Steel Research

摘　　要：对褐铁矿的烧结基础性能进行了研究,研究结果表明:褐铁矿1 200℃即开始同化,同化时间只有3 min,比磁铁矿和赤铁矿的同化温度低、同化时间短。褐铁矿的液相流动性也高于其它赤铁矿,达100%,液相固结强度和连晶强度也比赤铁矿低很多,所以褐铁矿的烧结矿强度低。但褐铁矿的同化性好,生成铁酸钙的能力比其它矿石高20%,所以褐铁矿的还原性好。The fundamental properties of limonite were studied in sinter process. The results show that limonite starts to assimilate at 1 200 ℃ with assimilation time of 3 minutes only. The assimilation temperature of limonite is lower and the assimilation time is shorter than those of magnetite and hematite. The liquid-phase fluidity of limonite is higher by 100% than that of other hematite. And the liquid-phase concretion strength and crystal connection strength are much lower than that of hematite, so sinter strength of limonite is lower. However, assimilation of limonite is better and the capability of creating calcium ferrite is higher by 20% than other ores. The reducibility of limonite is better.

关 键 词：褐铁矿 烧结 同化性 液相 

分 类 号：TF046.4[冶金工程—冶金物理化学]