我公司火炬系统的火炬气来源复杂,排放点达500多处,排放量变化也比较大(估计两套砂子炉日排放量为,50～60吨)。79年8月前由于无回收装置,火炬燃烧时有较长火焰,产生大量辐射热、冒黑烟,并有异常气味,对周围环境造成了二次污染。为了节约能源,消除二次污染,79年8月建成并投入使用了一种火炬气回收装置, The flare gas of our torch system has a complicated source of emissions, with more than 500 emission points and a large change in emissions (estimated daily emissions of two sets of sand furnaces are 50-60 tons). Before August, 79, there was no recycling device, and the flame of the torch burned with a long flame, generating a large amount of radiant heat, black smoke and abnormal odor, causing secondary pollution to the surrounding environment. In order to save energy and eliminate secondary pollution, a flare gas recovery unit was built and put into operation in August 1979,