Technical Reconstruction of Ventilation System in No.2 Shaft of Xiaoyu Coal Mine

This paper comprehensively analyzed the reasons of high ventilation resistance in 2^# shaft of Xiaoyu coal mine,and illustrated the necessity of system reconstruction.Taking full advantage of the original system of the mine roadway,reconstruction program system was proposed.Through the comprehensive comparison of several programs in technical,economic and security,the paper proposed measures of implementing the mine resistance-diminishing.