The cause which result in breaking off gear teeth and vanes touching wall on high load are analyzed, according to the stress status of gear and axle in Root's blower.
根据罗茨风机齿轮、轴受力情况，分析高负荷下风机齿轮轮齿折断及叶轮擦墙板的原因。
Also the on-the-spot maintenance and inspection was strengthened so that the running time of the Root's blower was prolonged. The normal running of PTA conveying was guaranteed.
同时加强了现场的维护和巡检，使得罗茨鼓风机的运行时间大大地延长，保证了PTA输送的正常进行。
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