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分析影响拉斗铲作业效率的主要因素,可以提高拉斗铲的生产能力,降低生产成本,提高矿山经济效益。通过研究拉斗铲作业效率影响因素,选取了实动时间、炸药单耗、采装周期和满斗系数4个可量化的指标作为比较数列,以拉斗铲月生产能力作为参考数列,结合黑岱沟露天煤矿拉斗铲现场作业统计数据,采用灰关联分析方法,确定了满斗系数是影响拉斗铲作业效率的最主要因素。针对分析结果,结合现场实际生产,提出了单斗卡车辅助拉斗铲进行剥离的工艺改进措施以及其他有效措施。
Analysis of the main factors affecting dragline shovel efficiency, can improve the shovel shovel production capacity, reduce production costs, improve mine economic efficiency. By studying the influencing factors of operating efficiency of dragline shovel, four quantifiable indexes of real operating time, explosive unit consumption, sampling cycle and full bucket coefficient were selected as the comparative series, taking the production capacity of shovel shoveling month as reference series, According to the field operation statistics of dragline shovel in Daigou opencast coal mine, the gray relational analysis method was used to determine the factor of full bucket, which is the most important factor that affects the work efficiency of dragline shovel. According to the analysis results and the actual production in the field, the improvement measures and other effective measures of stripping of the dragline shovel in single-bucket truck are put forward.