选定矿井通风系统相对稳定的时期为核定时期,通过矿井需要风量计算,确定各采掘工作面、硐室及备用工作面的需风量;根据矿井通风能力计算,确定大湾煤矿合理的采掘比为1∶4,矿井通风能力为130万t,矿井等积孔3.97 m2,矿井为通风容易矿井。并从矿井通风动力、用风地点有效风量、矿井通风网络能力、稀释瓦斯能力等方面验证了矿井通风能力为130万t。井下各用风地点风流稳定,风量、风速、风阻满足要求,矿井通风网络能力能够满足安全生产的要求。

With the selected the relative stable period of the mine ventilation system as an approved period and with the calculation of the mine required ventilatio n, the required ventilation quantity of each mining and excavation working face, chamber and standby working face could be set up.According to the calculation of the m ine ventilation capacity, the rational mining and excavation ratio of Dawan Mine was 1 : 4, the mine ventilation capacity was 1 .30 million tons, the mine equivalent hole was 3.97 m2 and the mine was a easy ventilation mine.From the mine ventilation dynamics, the effective ventilation quantity at the ventilation location, the mine ventilat ion network capacity, gas diluted capacity and other aspect, the mine ventilation capacity was verified as 1.30 million tons.At the each ventilation location, the air flow w as stable and the ventilation quantity, air velocity and air resistance could meet the requirements. The mine ventilation network capacity could meet the requirements of t he production and safety.

贵州大学教育教学改革研究资助项目(gdjg[2010]032)；贵州大学引进人才科研基金资助项目(贵大人基合字[2010]002号)；贵州省教育厅自然科学重点资助项目(黔教科[2011]034号)；贵州省国际科技合作计划资助项目(黔科合外G字[2009]700111号)；