标题:
转炉渣脱磷能力及铁水脱磷的实验研究Experimental Study of the Converter SlagDephosphorizing and Hot Metal Dehposphorization
作者:
徐飞, 王海川, 王刘涛, 王毅藩, 于天歌
关键字:
转炉渣, 脱磷能力, 脱磷率Converter Slag, Dephosphorization Ability, Dephosphorization Rate
期刊名称:
《Metallurgical Engineering》, Vol.2 No.1, 2015-03-24
摘要:
基于循环经济和环保对冶金渣循环利用的要求，本文开展转炉钢渣返回铁水脱磷的研究。利用SEM分析了转炉渣的主要物相，研究了在转炉渣中配入不同量的CaO、Fe2O3对脱磷率的影响。研究结果表明，转炉渣的主要物相为Ca2SiO4、RO相和铁酸钙，Ca2SiO4和3Ca•P2O5富集成5CaO•SiO2•P2O5。转炉渣中不配入CaO、Fe2O3时，脱磷率为29.41%，随着CaO、Fe2O3含量的增加，脱磷率上升，转炉渣含量为28%时，脱磷率达到了98.21%。Based on requirements of circular economy and environmental protection for metallurgical slag reutilization, the research of hot metal dephosphorization with steel slag from converter is carried out in this paper. The effect of converter slag with different addition of CaO, Fe2O3 for the de-phosphorizing rate is studied though analyzing the main phases of converter slag with SEM. The result indicates the main phases of converter slag are Ca2SiO4, RO phase, calcium ferrite and their combinations. The dephosphorizing rate is 29.41% while the converter slag mixes no CaO or Fe2O3, and the dephosphorizing rate rises as the increase of CaO and Fe2O3, then the dephosphorizing rate reaches 98.21% when the content of converter slag is 28%.