徐州矿务局大黄山主井使用苏制双筒4米提升机,运行至今已27年。其提升容器为8吨底卸式箕斗,钢丝绳为6×19+1—φ40,提升高度为387米。投产运行六年后,即发现筒壳有开焊、开裂现象,每年都进行补焊加固。近十年来,又数次发现卷筒辐板多处开裂,经加固补焊仍未止住,反而开裂愈来愈严重,致使设备长期处于带病运行状态,影响了生产。 Xuzhou Mining Bureau Huangshan main shaft using the Soviet-made double-cylinder 4 m elevator, operation has been 27 years. The lifting container is an 8 ton bottom unloading skip, the wire rope is 6 × 19 + 1-φ40 and the lifting height is 387 meters. Put into operation six years later, that is, there is open cylinder shell welding, cracking phenomenon, repair welding reinforcement every year. Over the past decade, several times found that the web spoke plate cracked several times, the reinforcement welding has not stopped, but cracking more and more serious, resulting in long-term operation of the device sick, affecting the production.