高瓦斯生产矿井通风能力核定模型及应用  

Model of Approving Ventilation Capacity for High Gassy Production Coal Mine and Application

作　　者：贺俊杰[1] 陈开岩[1] 关清安 周廷扬 张作华[1] 

机构地区：[1]中国矿业大学能源与安全工程学院,江苏徐州221008 [2]神宁集团汝箕沟煤矿,宁夏银川750000

出　　处：《煤矿安全》2008年第2期7-11,共5页Safety in Coal Mines

摘　　要：科学地进行"以风定产",是实现高瓦斯矿井安全生产的重要保证和前提之一。本文选定矿井通风系统相对稳定的时期为核定时期,确定出采掘布局和风网结构。在此基础上,通过通风网络解算,确定各采掘面的实际最大供风量;然后充分收集采掘面瓦斯涌出量、日产量、日进尺等数据,运用数理统计方法,选用幂函数进行曲线拟合,得出采掘面瓦斯涌出量与日产量之间的函数关系式;进而根据采掘面回风巷和瓦尾巷瓦斯允许浓度的要求,建立供风量和日产量之间的函数不等式,最后通过迭代求解此不等式确定出采掘面及全矿井的最大生产能力。其间还根据变量实际意义的潜在要求,对变量的取值区间进行了讨论。通过实例验证,该方法核定结果比较符合矿井的实际情况,对高瓦斯矿井通风能力核定有较好的指导价值。Scientifically to carry on ＂ daily output determination matched with the fan actual ability ＂, is important guarantee and one of premises that carries out the safety production of high gas mine. On the basis of designating the relatively stable time of mine ventilation system as the approving time, and determining the mining and driving topology and the airflow network architecture, the actual most greatly supplies of air flows for each excavation face is determined through mine ventilation calculation . And then the excavation face gas data and the daily output, daily drilling progress and so on the data is fully collected. The data is fitted with the power function by mathematical statistic method. And the functional relation type between gas emission and daily output is obtained. Finally taking the gas permission density of excavation surface return airway and tailing way as the limiting condition, excavations and the entire mine biggest productivity are determinated. During the reseach,the variables value sector are discussed according to the latent request of variable practical significance as well. Through the example confirmation, this method conforms to the mine actual situation well, and has the better application value for checking the ability of the high gassy mine.

关 键 词：矿井通风能力 风网解算 数理统计 曲线拟合 

分 类 号：TD722[矿业工程—矿井通风与安全]