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兖州矿业(集团)公司东滩煤矿一采区1303准备面走向长度为2 400 m,1303运顺煤巷掘进面实际单台局部通风机独头供风长度达到2 450 m。做好局部通风技术工作、保证掘进工作面有充足的风量成为安全生产的关键。根据掘进巷道断面及现有风筒情况,先采用准700 mm×20 000 mm的强力风筒1 000 m,继而采用准600 mm×10 000 mm的
Yanzhou Mining (Group) Co., Ltd. Dongtan coal mine a mining area 1303 preparation surface length of 2 400 m, 1303 Yunshun coal tunnel driving face actual single local fan single head length of 2 450 m. Local ventilation technology to do a good job, to ensure that there is sufficient ventilation face a safe production of the key. According to the roadway section and the current situation of the existing wind tunnel, the first with a strong 700 mm × 20 000 mm strong hair duct 1 000 m, then the quasi 600 mm × 10 000 mm