提高风温是高炉炼铁节能降耗的重要技术措施，本文采用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1280℃高风温提供理论依据。
Improving the blast temperature is still a major energy-saving technical measure in ironmaking procedure. In this paper, using the software of CFX, the combustion states were simulated numerically by adjusting the temperature of preheated combustion air. The results showed that with the temperature of preheated combustion air increasing , the combustion chamber acquired more uniform velocity field, shorter flame, and downward expansion of high-temperature zone, but no effect on combustion efficiency, which provided theoretical basis to the practicing operation for 1280℃ blast temperature.
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