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山东某矿1台2JK-2.5/20E 型矿井提升机,在运行初期发生了主电机转子滑环打火故障,该电控为 PLC 控制,高压真空换向、转子8级真空接触器切除转子电阻的交流电控,经过检查未发现相关设备有异常情况,经打磨抛光处理后继续运行。由于初期提升机运行在凿井阶段,提升任务量不大,司机操作不太熟悉,提升机一直在半速运行,经过运行观察没有再发生转子滑环打火的现象。2007年8月凿井
Shandong mine a 2JK-2.5 / 20E mine hoist, occurred in the early stages of the main rotor slip ring ignition failure, the electronic control for the PLC control, high-pressure vacuum reversing, rotor 8 vacuum contactor to remove the rotor resistance Of the exchange control, after inspection found no abnormal conditions related equipment, after grinding and polishing continue to run. As the initial hoist operation in the sinking stage, to enhance the workload is not large, the driver is not familiar with the operation, the hoist has been running at half speed, after running observed no slip ring rotor phenomenon. August 2007 Sinking