The air distributing system effectively complements and perfects the blowing system of blast furnace and is a protection means of uninterrupted air blow for emergency stops of the blower. Through analysis of the air distributing system an optimizing plan was put forward, which has further improved the safety and reliability of the air distributing sys-tem.%拨风系统是炼铁高炉鼓风系统的有效补充和完善，是鼓风机组紧急停机时保障高炉不断风的保护手段，通过对拨风系统的分析系统提出优化方案，进一步提高了拨风系统的安全可靠性。
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