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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。
Based on the thermocouple measurement data embedded in the hearth, finite element method was used to establish the mathematical model of the hearth erosion, and the finite element model and the calculation of erosion process were constructed. Due to the unknown boundary erosion, a boundary must be assumed in the calculation, and then the boundary should be moved according to the temperature measurement data to achieve the cyclic calculation. A two-dimensional finite element method for searching the lining of the erosion of the automatic approximation method is established to solve the technical difficulties, the development of a complete calculation program to achieve the calculation of blast furnace liner erosion from one-dimensional technology to two-dimensional technology Breakthrough. Through the operation of a certain blast furnace in Baotou, the determination of erosion line and slag line truly reflects the situation inside the furnace, laying a foundation for the erosion model to guide the blast furnace production.