包钢某座高炉陶瓷杯侵蚀模型研究

以炉缸埋设的热电偶测量数据为依据, 采用有限元法建立炉缸侵蚀数学模型, 构造带有移动内边界的有限元模型和侵蚀计算流程。由于侵蚀边界的未知性, 计算中必须先假定一个边界, 再根据测温数据来移动边界, 实现循环计算。建立了一种二维有限元搜索内衬侵蚀的自动逼近计算方法, 解决了相关技术难点, 开发了完整的计算程序, 从而实现了高炉炉缸内衬侵蚀的计算由一维技术向二维技术的突破。通过包钢某座高炉在线运行, 侵蚀线和渣铁线的确定, 真实地反映了炉内情况, 为侵蚀模型指导高炉生产奠定了基础。

Study on Erosion Model for Ceramic Cups of a Blast Furnace in BISGC

Based on the measured data by the thermocouple of a buried hearth, a finite element method was adopted to establish a mathematical model for hearth erosion, a finite element model with mobile internal boundary and an erosion calculating procedure. Since the erosion boundary was unknown, a boundary had to be assumed first in the calculation, then moved according to the measured temperature data to realize loop calculations. An automatic approximation calculation method for two-dimensional finite element search of lining erosion was established to solve the relative technical difficulties so that a complete computing program was developed, realizing a breakthrough from one dimensional to two-dimensional technology in the calculation of lining erosion of blast furnace hearth. The conditions in a blast furnace in BISGC were factually reflected through the on-line operations of the furnace and the determination of erosion line and slag iron line. It has laid a foundation for the guidance of the erosion model in the blast furnace productions.