Sustainable Mining and Metallurgy

Through the analysis of two faults in the air separation facility, the serious consequences and harmfulness of water entering the air separation facility were revealed. In this paper, the whole process of troubleshooting and analysis was discussed in detail. Finally, the cause of the liquid flood accident was found to be the leakage of the heat exchange tube of the air cooler of the supercharged expander, and the water entered the air separation device, resulting in the blockage of the high pressure air channel of the plate heat exchanger, which made the heat transfer capacity of the plate heat exchanger seriously insufficient. According to the fault reasons, reasonable suggestions and preventive measures were put forward for the safe operation of air cooler of supercharged expander.