高炉炉缸侵蚀监控方法研究  

Methodology for prediction of BF hearth erosion

作　　者：陈贺林[1] 

机构地区：[1]宝山钢铁股份有限公司设备部,上海200941

出　　处：《宝钢技术》2013年第1期8-10,31,共4页Baosteel Technology

摘　　要：高炉炉缸的侵蚀程度是决定高炉一代寿命的关键,而内部的侵蚀状况无法直接测定。通过安装的热电偶,利用热力学原理可以建立一维至三维数学模型,模型可归结为稳态热传导问题的反问题,问题的求解容易陷入局部最优或无定解。介绍了炉缸侵蚀模型的几种求解方法,对相关数学模型及其不同解法进行分析,包括边界元法、有限元法以及遗传算法等,实际中可根据精度要求选取合适的求解方法。The erosion degree of the blast furnace hearth is crucial to the campaign life of the blast furnace. However, the erosion situation inside the furnace cannot be measured directly. Based on the thermodynamics principle and data collected by the thermal couples, 1 - D, 2 - D and 3 - D mathematical models can be created. These models can be transformed into the inverse problem of steady heat conduction, which tends to have a local optimal solution or no definite solution. This paper introduced the mathematical models of blast furnace hearth erosion, and anlyzed several methods of solving these models, including the boundary element method （ BEM ）, finite element method （FEM） and genetic algorithm （GA）, etc. In the actual production process, which method is appropriate should be determined according to the accuracy requirement.

关 键 词：炉缸 侵蚀 数学模型 边界条件 

分 类 号：TF321[冶金工程—冶金机械及自动化]