酒钢3^(#)烧结机钒钛烧结矿生产实践  

Production Practice of Vanadium-titanium Sinter in JSCONo.3 Sintering Machine

作　　者：保善山 王忠有 申振国 BAO Shanshan;WANG Zhongyou;SHEN Zhenguo(Ironmaking plant of Jiuquan Iron and Steel Group Hongxing iron and Steel Co.,Ltd.,Jiayuguan 735100,China)

机构地区：[1]酒钢集团宏兴钢铁股份有限公司炼铁厂,甘肃嘉峪关735100

出　　处：《矿业工程》2024年第5期57-61,67,共6页Mining Engineering

摘　　要：酒钢地处我国西北部,周边高品位铁矿的有效利用对企业的发展至关重要。通过在酒钢3#烧结机进行钒钛烧结矿生产工业试验,证明了酒钢钒钛烧结矿生产是完全可行的。通过工业试验生产结果表明:随着钒钛磁铁矿配比的增加,烧结料层变薄、机速降低、垂直烧结速度变慢、混合料透气性变差、烟道负压上升、混合料制粒效果变差,且由于钙钛矿的存在,烧结矿强度、返矿率、低温还原粉化率、转鼓指数等指标呈现劣化趋势,但是烧结矿熔滴区间变窄,更有利于高炉冶炼,后续生产应优先考虑燃料配比5.2%,且烧结矿TiO_(2)含量低于1.5%控制。Jiuquan Iron and Steel(Group)Co.,Ltd.is located in the northwestern part of China,and the effective utilization of high-grade iron ore in the surrounding area is crucial for the development of the enterprise.The industrial tests of vanadium-titanium sinter production at JISCO No.3 sintering machine has proved that the production of vanadium-titanium sinter at JISCO is completely feasible.The industrial test production results show that with the increase of the proportion of vanadium-titanium magnetite,the sinter bed becomes thinner,the machine speed decreases,the vertical sintering speed slows down,the permeability of the mixture becomes worse,the negative pressure of flue ducts rises,and the granulation effect of the mixture becomes worse.Moreover,due to the presence of perovskite,indicators such as sinter strength,ore return rate,low-temperature reduction pulverization rate,and drum index show a deterioration trend,but the sinter droplet range becomes narrower,which is more conducive to blast furnace smelting.In subsequent production,priority should be given to controlling the fuel ratio to be 5.2%,and the TiO 2 content of sinter less than 1.5%.

关 键 词：钒钛磁铁矿 钒钛烧结矿 烧结性能 钙钛矿 熔滴区间 

分 类 号：TF046[冶金工程—冶金物理化学]