The treatment process of an impact accident of the molecular sieve bed in an air separation machine was analyzed. Key points in operating and handling troubles in molec-ular sieve system were put forward, which can effectively remove the troubles and ensure sta-ble, safe and long-cycle operation of the oxygen generator.%针对一起空分设备分子筛床层冲击事故的前后处理过程进行了分析，提出了对于分子筛系统故障的操作和处理要点，可有效排除故障，保证制氧机的稳定、安全、长周期运行。
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