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球磨机是建材、矿山及治金等工业部门的重要设备，就其工作负载而言，它又是一种典型的惯性负载设备。所以一般不采用电动机直接启动，而采用离合器实现球磨机的缓冲启动，即在启动球磨机时，首先使电动机空载启动，然后接通离合器。通过对离合器的控制，实现球磨机的缓冲启动
Ball mill is an important equipment for building materials, mining and metallurgy and other industrial sectors, in terms of its work load, it is a typical inertial load equipment. So generally do not use the motor directly start, and use the clutch to achieve ball mill buffer start, that is, when starting the ball mill, the first motor to start without load, and then turn on the clutch. Through the clutch control, to achieve the ball mill buffer start