钒钛磁铁矿用于球团生产的工业试用实践  

Industrial Trial Practice of Pellet Production with Vanadium Titanium Magnetite

作　　者：史虎 郭峰 房强[1] 徐超[1] SHI Hu;GUO Feng;FANG Qiang;XU Chao(Shandong Jinling Iron Ore Co.,Ltd.,Zibo 255084,China)

机构地区：[1]山东金岭铁矿有限公司,山东淄博255084

出　　处：《山东冶金》2018年第4期5-6,9,共3页Shandong Metallurgy

摘　　要：现有钒钛磁铁精矿粉价格低、铁品位较低(平均55%)、TiO_2含量10%左右,具有粒度较粗、比表面积小、矿粉颗粒表面亲水性差、造球时不易成球等特点,根据存料情况,通过提高润磨预处理效果、提高生球质量、调整热态工艺控制,分3阶段进行了20 d工业试用生产。结果表明,成品球团品位明显降低(TFe为52.35%),球团SiO_2含量达到7.22%,吨球煤耗由普通球团生产时的30 kg/t升至38.82 kg/t。The existing vanadium and titanium magnetite concentrate powder is low in price,low in iron grade(55%)and 10%in TiO2.It has the characteristics of coarse grain size,small specific surface area,poor surface hydrophilicity of mineral powder,and difficult to build ball when making ball.According to the situation of storage,by improving the pretreatment effect of damping,improving the quality of raw balls and adjusting hot state process control,the industrial trial production was carried out in three stages for 20 days.The results showed that the grade of the finished pellets is obviously reduced(TFe 52.35%),the SiO2 content of pellet is 7.22%,and the coal consumption of the ton ball is increased to 38.82 kg/t from 30 kg/t in the ordinary pellet production.

关 键 词：球团 钒钛磁铁精矿 粒度 生球强度 球团品位 

分 类 号：TF046[冶金工程—冶金物理化学]