欢迎访问《金属矿山》杂志官方网站,今天是 分享到:
×

扫码分享

金属矿山 ›› 2010, Vol. 39 ›› Issue (05): 104-106.

• 矿物工程 • 上一篇    下一篇

用添加有机结合剂和造孔剂的球团制备海绵铁

隋延力1, 祁超英2, 郝俊杰1, 刘祥庆1, 郭志猛1, 刘曙2   

  1. 1.北京科技大学;2.武汉钢铁(集团)矿业有限责任公司
  • 出版日期:2010-05-15 发布日期:2010-11-09

irect Reduction Iron with Pellets Containing Organic Binder and Pore-forming Agent

Sui Yanli1,Qi Chaoying2,Hao Junjie1,Liu Xiangqing1,Guo Zhimeng1,Liu Shu2   

  1. 1.University of Science & Technology Beijing;2.Wuhan Iron & Steel Group Minerals Co.,Ltd
  • Online:2010-05-15 Published:2010-11-09

摘要: 以程潮铁矿铁精粉为原料,煤粉为还原剂,对添加有机结合剂和造孔剂的铁精粉球团的直接还原工艺进行了研究。结果表明,在铁精粉、造孔剂、有机结合剂质量比=20∶1∶5,煤与球团的配比1∶3,1 250 ℃还原5 h,可得到TFe含量为93%以上的海绵铁。该方法可以缩短还原时间,从原来的15 h以上缩短到5 h,大大降低能耗。

关键词: 直接还原, 有机结合剂, 造孔剂

Abstract: Process parameters of direct reduction of pellets containing organic binder and pore-forming agent,in which the refined iron ore was from Chengchao Iron Mine as well as the reducing agent was coal,has been investigated.The result shows that the appropriate weight ratio of refined iron ore,pore-forming agent and organic binder was 20∶1∶5.When reducing at 1 250 ℃ for 5 h as the weight ratio of coal and pellet was 1∶3,the total Fe of DRI was more than 93%.Because of the effect of pore-forming agent,the reducing time was reduced to 5h as to more than 15h other reference mentioned.Then the power cost could be decreased greatly.

Key words: Direct reduction, Organic binder, Pore-forming agent