介绍了柳钢几台空分设备换热器发生的水分、珠光砂、分子筛粉末等几种堵塞故障现象，分析了堵塞原因，提出了处理办法及预防措施。%Several clogging phenomenon by water, pearlife and molecular sieve powder in the heat exchangers of air separators at Liuzhou Steel are introduced, causes of the clog-ging are analyzed and treatment methods and prevention measures are also put forward.
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