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磨煤机在运行过程中,磨辊进煤粉引起的磨辊轴承损坏故障时有发生,给设备和机组的安全稳定运行带来重大隐患,严重影响了机组的经济效益。作者深入分析和探讨了磨煤机磨辊轴承损坏原因,发现原有磨辊密封形式难以满足运行条件,进而对磨辊轴承室密封、磨辊座盖、密封保持套等部件进行了改造,改造后,磨煤机磨辊轴承使用寿命提高到3万小时以上,取得了显著的安全和经济效益。
Pulverizer in the process of running, grinding roller into the roller bearing damage caused by the occurrence of pulverized coal from time to time, to the safety and stability of equipment and units have a serious risk, seriously affecting the economic efficiency of the unit. The author deeply analyzed and discussed the cause of grinding roller bearing damage and found that the original grinding roller sealing form is difficult to meet the operating conditions, and then the grinding roller bearing chamber seal, grinding roller cover, seal retaining sleeve and other components were transformed, rebuilt After the mill roller bearing life to 30,000 hours or more, and achieved significant safety and economic benefits.