基于均衡生产的煤矿主煤流运输系统关键工序效率优化

为了解决X煤矿主煤流运输系统效率低、均衡性差的问题，以关键工序（主井提升）为研究切入点，提出了煤矿主煤流运输系统关键工序效率优化、提升方法。该方法针对主煤流运输系统瓶颈产生的主要因素，利用人机联合作业图确定消除瓶颈的途径。通过采用串行作业改为并行作业，动作经济原则优化动作，改变员工更换频次的手段，使每循环作业时间缩短15.82 s。优化方法使主煤流运输系统平衡率提高9.52%，节拍降低24.06%，日产量提高982.13 t，表明该优化方法的可行性与有效性。

Optimization of Key Process Efficiency of Main Coal Flow Transport System in Coal Mine based on Balanced Production

An efficiency promotion method of main coal flow key process in coal mine is proposed to solve the problem of low efficiency and production imbalance in X coal mine. Teamwork graph is used to find ways to eliminate the bottleneck based on the causes of the bottleneck of the main coal flow system. Serial work is done concurrently and the motions of workers are simplified following economic motion principle. And the frequency of the replacement of workers is adjusted. Finally, working time of each cycle is shortened by 15.82s, which increases the balance rate by 9.52%. Meanwhile, circle time is reduced by 24.06% and daily output is increased by 982.13t. The results show the feasibility and effectiveness of the method.