中南大学学报（自然科学版）2017，Vol.48Issue(12)：3141-3146,6.DOI:10.11817/j.issn.1672-7207.2017.12.001
生物质炭用于铁精矿球团还原过程中黏结的抑制
Application of charcoal in iron ore pellets sticking prevention during reduction process
摘要
Abstract
Effects of size and dosage of charcoal on sticking of iron ore pellets during reduction process were investigated. The sticking prevention mechanism of charcoal was revealed. In addition, an optimized sticking prevention method was developed based on the characteristics comparison of surface coating and charcoal adding technologies. The results show that charcoal can effectively prevent the sticking between pellets. Suitable particle size and dosage of charcoal is 10 mm, and the molar ratio of C and Fe is 0.3, respectively. Charcoal assumes multiple roles of strong endothermic, physical barrier, burden looser and reducing agent during reduction process, which ensures its sticking prevention result. The composite approach of surface coating with addition of charcoal is an ideal sticking prevention method, which overcomes the disadvantages of low reduction rate and weak sticking prevention effect.关键词
铁精矿球团/直接还原/黏结抑制/生物质炭Key words
ironore pellets/direct reduction/sticking prevention/charcoal分类
矿业与冶金引用本文复制引用
易凌云,黄柱成,姜涛,梁之凯,钟荣海..生物质炭用于铁精矿球团还原过程中黏结的抑制[J].中南大学学报（自然科学版）,2017,48(12):3141-3146,6.基金项目
国家自然科学基金资助项目(51504230)(Project(51504230) supported by the National Natural Science Foundation of China) （51504230）
