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华东某矿副并提升机曾发生过一起严重放大滑事故，当时提升机的工作情况是上提４车歼石，下放４空车。当重罐到达井口时，制动系统自动抱闸停车，井口工人发现已停下来的重罐开始慢慢下滑，打信号也无济于是，这时司机也发现此问题，进行紧急制动，但不起作用。重罐下滑速度逐
Huadong a mine deputy and hoist has occurred together with a serious amplification slippery accident, when the working condition of the hoist is to lift 4 cars stone, decentralization 4 empty car. When the heavy tank reached the wellhead, the brake system automatically brake parking, wellhead workers found that stopped heavy tank began to slowly decline, the signal is also no help So, then the driver also found the problem, emergency braking, but Does not work. Heavy tank down by speed