含碳冷固结球团矿冶金性能研究  

STUDY ON THE METALLURGICAL PROPERTIES OF COLED-BONED CARBON-BEARING PELLETS

作　　者：任志国[1] 周渝生[1] 王来久 李万珍[1] 

机构地区：[1]北京钢铁研究总院

出　　处：《烧结球团》1996年第6期16-21,共6页Sintering and Pelletizing

摘　　要：通过试验室验证，含碳冷固结球团矿在１１００℃以上的高温下，无论在还原气氛、中性气氛或氧化性气氛中都可以靠球团内含的碳实现快速自还原。在１１００℃以上的高温下，含碳冷固结球团矿在开始的４０分钟内还原速度快，以后趋向平缓。在含碳冷固结球团中，当固定碳的克原子数与氧的克原子数之比Ｒ＜０．９，在１２００℃以上高温下还原时，将出现还原停滞；如果Ｒ≥１．只要球团中有ＦｅＯ和碳同时大量存在，在１２００℃以上。还原反应将继续进行，球团不熔滴。Laboratory tests confirm that: at abeve 1100℃ temperature,the cold-boned carbonbearing pellets can be realized quickly self-reduction, in reducing, neutral or inert atmosphere. At above 1100℃,the cold-boned carbon-boring pellet is quickly reduced in initial 40min, and then becomes flat. In cold-boned pellet, as the ratio of mol C to mol iron oxide R>0.9, the reduction will be delayed, whereas if R≥1, as long as there are abundant FeO and carbon presence the reduction reactioa will continued, and the pellets wouldn't melt down.

关 键 词：含碳球团矿 冷固结球团矿 冶金性能 球团矿 

分 类 号：TF046.6[冶金工程—冶金物理化学]