通过建立高炉铸铁冷却壁的三维传热模型,应用渣皮熔化迭代方法分析冷却壁温度场,确定不同条件下冷却壁的极限热负荷,讨论了高炉冷却壁的结构和冷却工艺对极限热负荷的影响。结果表明,冷却水速度(2~4m/s)对极限热负荷影响较小,水管与壁体间的气隙降低了铸铁冷却壁冷却能力;冷却水管直径由48 mm增加到70 mm,可以使极限热负荷提高45%。 Through the establishment of three-dimensional heat transfer model of blast furnace cast iron stave, the temperature field of stave was analyzed by slag skimming iteration method to determine the limit heat load of stave under different conditions. The effects of structure and cooling process of BF stave on ultimate thermal load influences. The results show that the cooling water velocity (2 ~ 4m / s) has little influence on the ultimate heat load, and the air gap between the water pipe and the wall reduces the cooling capacity of the cast iron stave. The diameter of the cooling water pipe increases from 48 mm to 70 mm, The ultimate heat load can be increased by 45%.