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9、运转情况使用时间:2年零11个月 (1974年11月～1977年9月) (1)故障及其处理措施 T—1 胶带运输机的承载托辊和回程托辊于1971年安装并运转,其平均障碍率为2.8％;T—2及T—3胶带运输机的承载托辊和回程托辊(迈克福公司产品)的故障率为0.47％,已运转三年至今仍保持良好状态;
9, operation time: 2 years and 11 months (November 1974 ~ September 1977) (1) failure and its handling T-1 tape conveyor bearing roller and return roller installed in 1971 and The average failure rate was 2.8%. The failure rate of bearing rollers and back idlers for T-2 and T-3 tape conveyors (products from McAfee) was 0.47% and remained in good condition for three years after operation.