铁精矿冷固球团矿煤基回转窑直接还原新工艺  

DIRECT REDUCTION OF COLD BOUND PELLETS OF IRON CONCENTRATE WITH COAL-BASED ROTARY KILN AND ITS THEORETICAL BASIS

作　　者：朱德庆[1] 邱冠周[1] 姜涛[1] 徐经仓[1] 彭怀玺 张文松 刘华 宗遐贵 

机构地区：[1]中南大学 [2]山东鲁中冶金矿山公司

出　　处：《钢铁》2001年第2期4-7,共4页Iron and Steel

基　　金：国家科委"九.五"重点推广项目

摘　　要：铁精矿冷固球团矿煤基回转窑直接还原新工艺的关键技术包括复合粘结剂及相应的配套实用技术。提出了含复合粘结剂的生球强度界面作用力综合模型 ,冷固球团矿强度的粘结膜机理 ,含复合粘结剂的冷固球团矿催化还原体积反应机制及全窑高温快速还原热工制度。An innovative process of direct reduction of cold bound pellets of iron concentrate with coal based rotary kiln has been developed successfully,with some key technologies, including special composite binder and corresponding reasonable techniques. The binding principle in pelletizing covers a comprehensive model of interfacial reaction among particles inside green pellets, the formation of binding film during hardening of green pellets by baking to obtain enough strength for a volumetric catalyzed reduction model for cold bound pellets bearing composite binder and corresponding high temperature reduction system in rotary kiln.

关 键 词：铁精矿 冷固球团矿 直接还原 回转窑煤基 

分 类 号：TF55[冶金工程—钢铁冶金]