我矿四号井是双钩串车提升的副井,倾角为33°,斜井长660米,下口使用由矿车挤压变位的自动弹簧道岔。以前常因道岔失灵、错位而造成掉道或同钩事故,严重时两钩车辆相撞,甚至跑车而影响生 Mine No. 4 mine is a double hook string car to promote the auxiliary shaft, the inclination of 33 °, inclined shaft 660 meters long, the next exit by the car squeeze displacement automatic spring turnout. Previously often due to failure of the switch, dislocation caused by slip road or the same hook accident, serious hook collision vehicles, and even sports car and affect students