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某乡办化工厂三聚氯氰车间,主要生产是用氰化钠和液氯(浓度99.9%)反应聚合生成三聚氯氰。所用液氯贮存于氯气瓶,经管道气化进入缓冲罐。1991年8月18日夜12时30分,该车间停机检修。按操作规程应关闭液氯阀、蒸气阀及减压阀。当时在班的操作工违章作业,仅关闭了减压阀,而液氯阀和蒸气阀均未关闭,且擅自离岗。液氯不断输入管道,且经常规蒸气加热,致使管道内液
A township chemical plant cyanuric chloride workshop, the main production is the use of sodium cyanide and liquid chlorine (99.9% concentration) polymerization reaction cyanuric chloride. The liquid chlorine stored in chlorine cylinders, gasification into the buffer tank through the pipeline. August 12, 1991 at 12:30 on the night, the workshop downtime maintenance. According to the rules should be closed liquid chlorine valve, steam valve and pressure reducing valve. At that time, the operators in the class violated the regulations and only closed the pressure reducing valve. However, both the liquid chlorine valve and the steam valve were not closed and left without authorization. Liquid chlorine continuously into the pipeline, and regular steam heating, resulting in pipeline liquid