【摘要】 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。更多还原

【Abstract】 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.更多还原