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事故过程2006年7月7日早8时,某氧化铝厂蒸发车间清理班检修人员正在更换老蒸发Ⅰ组蒸发器管道考克闸门。8时40分,操作工人将老蒸发Ⅰ组蒸发器停下后进行水洗。9时30分,检修作业负责人石某带领检修人员霍某到现场查看需要清理和更换的考克闸门,到现场后两人对考克闸门进行了初步清理,但考克闸门没有清理到位。9时45分,工段长郑某得知老蒸发Ⅰ组蒸发器水洗快结束了,便安排车间工作票签发人签发《设备检修、清理作业
Accident process As early as 8 o’clock on July 7, 2006, an alumina plant evaporating plant clean-up class maintenance personnel are replacing the first group of evaporator Evaporator Cork gate. 8:40, the operator will be the first group of evaporator evaporation evaporator stopped after washing. 9:30, Shi-ming, head of overhaul operations led the repair staff Huomou to the scene to check the need to clean and replace the Cork gate to the scene after the two carried out a preliminary cleaning of the Cork gate, but the Cork gate cleaning is not in place. 9:45, Section Chief Cheng learned that the evaporation of the first group of evaporator evaporation was almost over, we arrange the workshop ticket issuer to issue "equipment maintenance, cleaning operations