高速磨煤机，又称风扇磨煤机，其结构形式与风机相似。它由工作叶轮和蜗壳形外罩组成，叶轮上装有8~12个叶片，称为冲击板。蜗壳内壁装有护甲。磨煤机出口为煤粉分离器。高速磨煤机具备风机和磨煤机两重功能，原煤靠冲击板和蜗壳的撞击、摩擦粉碎成煤粉，然后靠风扇吹送到炉内。
本文主要研究应用在发电厂以褐煤为燃料的锅炉制粉系统中的高速风扇式轻型轮磨煤机可行性技术。
This paper mainly research on the feasibility technique of high speed fan-type light wheel coal grinding machine in boiler powder manufacturing system which applied in power plant used brown coal.
某电厂发生锅炉磨煤机变速箱高速轴断裂，双列调心滚子轴承损坏。
The high speed shaft of the coal mill gear box for the boiler in a power plant broke, and the double-row self-aligning roller bearing was damaged.
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