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针对现用矿井提升方向电控回路存在的不足，设计了一种用交流接触器控制的多水平选择提升方向回路。既能由容器的终端停车水平也可以按按钮确定提升方向。并且具有容器在井口（井底）停车时不能再选择提升（下放）的联锁。
Aiming at the deficiency of the electric control circuit in the current mine lifting direction, a multi-level selection control loop with the AC contactor is designed to enhance the directional control loop. Both from the container terminal parking level can also press the button to determine the direction of lifting. And with the container in the wellhead (bottom) stop can not choose to lift (decentralization) interlock.