Model NGF powder feeder with internal gate and leakproofness is a major pulverized coal feeding equipment in combustion system of power plant to feed coal into boiler continuously and evenly.

ngf型内启闭无泄漏给粉机是火力发电厂锅炉燃烧系统主要的给粉设备，能把煤粉连续、匀地供给锅炉燃烧系统。

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So a study on mechatronics of the precise metering feeder of powder and control system is necessary in actually.

因此将机电相结合，研究并设计出一种粉体的精密计量装置与控制系统具有极高的现实意义。

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