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一、概况 潘集三号井为年产原煤300万吨的大型矿井。采用立井分区石门开拓。设计五个井筒,现已开工有主、副、中央风井。其特征如表1。
I. Overview Panji No. 3 well is an annual output of 3 million tons of raw coal mine. Vertical shaft Shimen use to open up. Five wellbores have been designed and are now in operation with main, secondary and central air shafts. Its characteristics are shown in Table 1.