重庆大学学报2017，Vol.40Issue(6)：8-14,7.DOI:10.11835/j.issn.1000-582X.2017.06.002
转炉中石灰石替代部分石灰对脱磷、炉气成分及氧枪枪位的影响
The effect of using limestone to displace some lime in converter on dephosphorization efficiency, gas composition and oxygen lance position
摘要
Abstract
Using limestone to displace some lime in converter can decrease the production costs of steelmaking and reduce the emission of carbon dioxide.The industrial tests and thermodynamic analysis were carried out to investigate the effect of limestone substitution ratios (18％,19％,20％,25％,28％,29％,39％ and 41％) on the dephosphorization efficiency,converter gas composition and oxygen lance position.The results show that better dephosphorization efficiency can be achieved when the limestone substitution ratio is 25％,and the end point phosphorous content is 0.016％,which is reduced by 47％ compared with the original process of 0.030％.Meanwhile,the moment of recovering the converter gas is one to two minutes earlier than before,and the amount of recovered gas increases.Furthermore,the more limestone is added,the earlier recovery time is.The results also show that the oxygen lance control position should be raised from 1.7 m to 1.8 m when using limestone to displace some lime in steelmaking.关键词
转炉炼钢/石灰石替代比/分解/脱磷效率/炉气成分/氧枪枪位Key words
converter steelmaking/limestone substitution ratio/decomposition/dephosphorization efficiency/converter gas composition/oxygen lance position分类
矿业与冶金引用本文复制引用
梁永昌,唐海燕,刘威,杨宏博,郭森林,汪国奉,党进乾,李京社..转炉中石灰石替代部分石灰对脱磷、炉气成分及氧枪枪位的影响[J].重庆大学学报,2017,40(6):8-14,7.基金项目
国家自然科学基金资助项目(51374021) （51374021）
北京科技大学教研项目(JG2014M08).Supported by National Natural Science Fundation of China (51374021),and the Teaching and Research Fund of University of Science and Technology Beijing (JG2014M08). （JG2014M08）
