煤气放散管（gas escape pipe ）煤气系统中专门为特殊情况下排放煤气的管子。常见的有过剩放散管、事故放散管和吹刷放散管等。放散管的直径应能保证在一定时间内排除一定量的煤气。放散管排出的煤气遇火源会燃烧，因此放散管的布置要考虑防火问题。例如，厂区内或厂房附近的煤气放散管的排放口要高出厂房顶4m以上等。
本文论述高炉煤气放散管经一次燃烧失败的事故后，整改技术工艺，改善燃烧效果。
This article dissertate discharge pipes of blast furnace gas after once accident of burning unsuccessful, technic and technology are changed, the burning effect are improved.
首先最重要的一点：如果煤气管道内着火，应立即封闭所有入孔、放散管、采封管，并向管道内通大量蒸汽灭火。
First of all the most important point: if the gas pipeline inner fire, immediately closed all into the hole, radiation tube and sealing pipe, and in general to pipe of steam to extinguish fire.
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