文章介绍了双进双出磨煤机的特点和工作原理,阐述了调试及运行中应注意的几个关键问题及其处理方法,提示了运行中应主要控制的几个因素,给出了磨煤机出力与风量的关系曲线、煤粉细度与分离器档板关系曲线等几条重要曲线,为以后的运行调整提供了强有力的依据。 This paper introduces the characteristics and working principle of double entry and double exit coal mill, expounds several key problems that should be paid attention to in commissioning and operation and its treatment methods, and points out several factors that should be mainly controlled during operation. Coal machine output and air volume curve, fineness of coal separator curve and the separator several important curves, etc., for the future adjustment of the operation provides a powerful basis.