提高烧结矿碱度的探索与实践  

Exploration and Practice of Improving Sinter Basicity

作　　者：别威 Bie Wei(Lanzhou Resource&Environment Voc-Tech University,Lanzhou Gansu 730021,China)

机构地区：[1]兰州资源环境职业技术大学,甘肃兰州730021

出　　处：《山西冶金》2023年第6期165-167,共3页Shanxi Metallurgy

摘　　要：碱度是烧结矿的重要指标,直接影响烧结产品质量,国内高碱度烧结矿黏结相为铁酸钙,具有强度好、还原性好的特点。如果烧结矿碱度太低,黏结相生成量不足,就会降低烧结强度和还原度。为提高烧结矿碱度,以河北某钢厂生产实践为例,通过理论与实践相结合的方法,选择合理的原料结构,并借助于烧结杯实验确定最优方案指导现场生产,再通过现场生产予以验证,很好地衡量出不同碱度烧结矿的质量效益和经济效益,最终确定出最优烧结矿碱度。Alkalinity is an important index of sinter,which directly affects the quality of sinter.The binding phase of domestic high-alkalinity sinter is calcium ferrite,with good strength and reducibility.If the alkalinity is too low,the amount of bonding phase is insufficient,and the sintering strength and reduction degree will decrease.By combining theory with practice,a steel plant in Hebei has formulated a reasonable raw material structure and determined the optimal plan to guide the on-site production with the help of the sintering cup experiment,and then passed the on-site production verification.Measure the quality and economic benefits of sinters with different alkalinity,and finally determine the optimal sinter alkalinity.

关 键 词：混合料粒度 烧结矿 碱度 提高强度 

分 类 号：TF325.1[冶金工程—冶金机械及自动化]