碱金属在包钢高炉中的平衡

Balance and Control Measures of Alkali in BF of Bao-steel

对包钢1#高炉入炉原燃料、生铁、炉渣、粉尘等方面进行取样分析,测定了样品的碱金属含量,并结合高炉实际生产数据对包钢1#高炉做了碱金属平衡计算。结果表明,包钢1#高炉中的碱负荷主要是由烧结矿带入,占入炉碱负荷的66.4%;排碱的主要由炉渣完成,排碱量为66.3%。为了控制高炉碱负荷、合理的减少由于碱金属的循环富集而对高炉生产造成的各种危害,文章将从炉渣的碱度、入炉原燃料的选用等方面给出合理的建议,使其更好的为高炉生产服务。

Based on chemical analysis of iron-bearing burden material,pig iron、slag and dust,alkali balance was calculated for No.1BF.The results showed that the alkali content in sinter、pellets and cokes was the primary factors to influence the alkali load of the blast furnaces,which comes to 66.4%;Alkalis were mainly removed from the blast furnaces by slag,which respectively comes to 66.3%.Some advices on slag basicity,iron-bearing burden material and operating system are presented to control the alkali load and to reduce the circulation of alkali.