提高风温是高炉炼铁节能降耗的重要技术措施,用CFX模拟不同助燃空气预热温度条件下的燃烧状态,研究结果表明,提高助燃空气预热温度可使燃烧室内的速度场更加均匀,火焰减短,高温区向下扩展,但对燃烧效率没有影响,为迁安2号高炉热风炉实现1 280℃高风温提供理论依据。 Increasing air temperature is an important technical measure for saving energy and reducing consumption of blast furnace ironmaking. Using CFX to simulate combustion conditions of different combustion air preheating temperatures, the results show that increasing the preheating temperature of combustion air can make the velocity field in the combustion chamber more uniform, The flame is shortened and the high temperature zone expands downwards, but it has no effect on the combustion efficiency, which provides a theoretical basis for the realization of 1 280 ℃ high wind temperature in Qian’an No.2 blast furnace.