炉缸侵蚀结厚监测模型的研发与应用  

Development and application of hearth-bottom erosion and accretion model of blast furnace

作　　者：马富涛[1] 

机构地区：[1]北京首钢自动化信息技术有限公司自动化研究所,北京100041

出　　处：《钢铁研究》2013年第4期9-14,共6页Research on Iron and Steel

摘　　要：介绍了基于遗传算法的炉缸侵蚀结厚模型的研发概况和主要模型功能,并结合某4 000m3和5 000m3大型高炉长期在线运行数据,着重对模型计算和侵蚀结厚监测模拟效果进行了验证。当炉底中心温度不断升高时,炉底侵蚀加剧,剩余厚度减小;当温度不断降低时,炉缸中心区域渣铁流动性差,炉底易形成导热系数较低的粘结物。模型计算结果与实际的温度变化趋势及炉缸活跃性表现相一致。In this paper,the development of hearth-bottom erosion and accretion mathematic model of blast furnace based on genetic algorithm and its functions are introduced.Combined with long-term on-line calculation data of 4 000 m3 and 5 000 m3 large blast furnaces,the erosion and accretion simulation results are verified with model calculations.When bottom center temperature continuously increased,bottom erosion process would continuously take place and the bottom thickness would be reduced.When the bottom center temperature continuously decreases,the liquidity of hot metal and molten slag in hearth center would become poor,and it is easy to form lower thermal conductivity bonding material in bottom area.In a word,the results of model calculation and simulation are consistent with actual temperature change trend and performance of blast furnace hearth.

关 键 词：高炉炉缸 侵蚀 结厚 遗传算法 数值模拟 

分 类 号：TF062[冶金工程—冶金物理化学]