烧结熔剂的活性度和显微结构研究  

Research on activity degree and microstructure of sinter flux

作　　者：左海滨[1] 徐承飞[1] 张建良[1] 张涛[1] 袁骧[1] 王斌 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]国丰钢铁有限公司第二炼铁厂,河北唐山063000

出　　处：《武汉科技大学学报》2013年第4期246-249,276,共5页Journal of Wuhan University of Science and Technology

基　　金：中央高校基本科研业务费专项资金资助项目(FRF-MP-12-001A)

摘　　要：通过活性度实验和显微结构分析对国丰钢铁有限公司常用的3种烧结熔剂(生石灰、白云石和石灰石)进行基础性能研究。结果表明,3种熔剂的活性度均不是很好,生石灰熔剂的活性度实测值显著低于其理论值,石灰石熔剂的活性度高于白云石熔剂的活性度;白云石和石灰石熔剂的最佳煅烧温度都在1300℃左右;3种熔剂的杂质含量较多,且分布不均匀,降低了熔剂的有效含量和活性度。Performance studies of three common sinter fluxes （quicklime, dolomite and limestone） used by Guofeng Iron and Steel Limited Company were conducted by means of activity degree experiment and microstructure analysis. The results show that none of the activity degrees of three sinter fluxes is satisfactory, the measured activity degree of quicklime is significantly lower than the theoretical value, and the activity degree of limestone is higher than that of dolomite. The best calcination temperature of dolomite and limestone is about 1300 ℃. Impurity content in the three fluxes is high and unevenly distributed, which decreases the effective content and activity of fluxes.

关 键 词：烧结熔剂 活性度 显微结构 煅烧温度 生石灰 白云石 石灰石 

分 类 号：TF525.1[冶金工程—钢铁冶金]