钒钛矿冶炼高炉鼓风加湿系统  

BLAST FURNACE HUMIDIFICATION SYSTEM FOR VANADIUM TITANIUM MAGNETITE SMELTING

作　　者：刘海宏 胡心光 李伊辉 衡兴革 Liu Haihong;Hu Xinguang;Li Yihui;Heng Xingge(Ironmaking Devision of Chengde Vanadium and Titanium New Material Co.,Ltd.,Chengde 067102,Hebei)

机构地区：[1]承德钒钛新材料有限公司炼铁事业部,河北承德067102

出　　处：《河北冶金》2024年第8期47-50,共4页Hebei Metallurgy

摘　　要：针对钒钛磁铁矿高炉冶炼以及所处北方高炉的生产环境特点,分析了冷风中湿分对高炉风口前理论燃烧温度的影响,以及控制理论燃烧温度在钒钛磁铁矿高炉冶炼过程中的重要性,确定了高炉冷风恒湿的冶炼手段,并对风口前理论燃烧温度的传统经验计算公式进行了优化。根据优化后的理论燃烧温度计算公式,在实际生产中通过对高炉冷风湿度、大气湿度及其他相关参数的跟踪统计,研究了鼓风湿分与理论燃烧温度及各鼓风参数的对应关系,在此基础上对1250 m^(3)钒钛矿高炉风口前理论燃烧温度以及高炉鼓风加湿量做出正确调剂控制,并且在冷风恒湿的基础上,通过对风口前理论燃烧温度的灵活控制,使炉内温度分布区间更加合理、稳定,达到优化炉缸煤气流初始分布和调整、稳定炉身煤气流通道的目的,使钒钛矿高炉在对待生产外围条件的变化上有了更强的抗风险能力,为提高钒钛磁铁矿高炉冶炼强度、稳定炉况趋势、确保高炉长周期稳定顺行增加了调节手段。Based on the characteristics of vanadium titanium magnetite blast furnace smelting and the production environment in the north,the influence of moisture content in cold air on the theoretical combustion temperature in front of the tuyere of vanadium titanium magnetite blast furnace was analyzed,and the importance of controlling the theoretical combustion temperature in the smelting process of vanadium titanium magnetite blast furnace was determined.The smelting method of blast furnace cold air and constant humidity was determined.Through practical demonstration,the traditional empirical calculation formula for the theoretical combustion temperature in front of the tuyere has been optimized.Based on the optimized theoretical combustion temperature calculation formula,the corresponding relationship between the blast furnace cold air humidity,atmospheric humidity,and other related parameters was studied through tracking and statistics in actual production.Based on this,the theoretical combustion temperature in front of the 1250 m^(3) vanadium titanium blast furnace tuyere and the humidification amount of blast furnace air were correctly adjusted and controlled.On the basis of constant cold air humidity,the temperature distribution range in the furnace is made more reasonable and stable by flexibly controlling the theoretical combustion temperature in front of the tuyere,achieving the goal of optimizing the initial distribution and adjustment of the gas flow in the furnace hearth,stabilizing the gas flow channel in the furnace body,and enhancing the risk resistance of the vanadium titanium magnetite blast furnace in response to changes in production peripheral conditions.It implements adjustment measures to enhance the smelting strength of vanadium-titanium-magnetite in blast furnaces,stabilize the furnace condition trend and further ensure long-term stability.

关 键 词：钒钛矿 高炉 鼓风加湿 理论燃烧温度 煤气流 

分 类 号：TF54[冶金工程—钢铁冶金]