高炉炉缸内衬形状预测研究  

Numerical Prediction for the Hearth Profile of a Blast Furnace

作　　者：李佳玲 朱蓉甲 周萍[1] 阳春华[2] 周谦[1,3] LI Jia-Ling;ZHU Rong-Jia;ZHOU Ping;YANG Chun-Hua;ZHOU Chenn Q(School of Energy Science and Engineering, Central South University, Changsha 410083, China;School of Information Science and Engineering, Central South University, Changsha 410083, China;Center for Innovation through Visualization and Simulation, Purdue University Northwest, Hammond 46323, USA)

机构地区：[1]中南大学能源科学与工程学院,长沙410083 [2]中南大学信息科学与工程学院,长沙410083 [3]Center for Innovation through Visualization and Simulation, Purdue University Northwest, Hammond 46323, USA

出　　处：《工程热物理学报》2019年第7期1577-1582,共6页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.61573383)

摘　　要：高炉炉缸是高炉生产过程中环境最为恶劣的区域,炉缸内衬的侵蚀状况决定了高炉的工作寿命,因此实现炉缸内衬形状的预测具有十分重要的意义。本文结合炉缸内部流动传热CFD正解模型和一维传热逆解模型预测炉缸的内衬热面形状,该计算模型考虑了耐火砖内温度变化对导热系数的影响,并利用1150℃等温线对热面形状的预测作为初始值。结果显示预测后的计算温度和工厂热电偶测量温度很好地吻合,验证了热面形状预测方法的准确性和有效性。The hearth is one of the harsh working areas of a blast furnace,the life span of which is determined mainly by the hearth erosion.Prediction of the residual profile of the hearth liner is of great importance.This work aims to predict the hearth liner profile by combination of positive solution for heat transfer using CFD(Computational Fluid Dynamic)and inverse solution using one-dimension model.This method considers the thermal conductivity of the firebrick as function of its temperature,and makes the first calculation based on the isotherm at 1150 0℃.The results show a good agreement with the measured temperatures by thermocouples on the plant site,which verified the availability and effectiveness of this method.

关 键 词：高炉炉缸 CFD 传热 侵蚀 

分 类 号：TK124[动力工程及工程热物理—工程热物理]