自然风压和活塞风影响下的会宝岭铁矿斜坡道污风治理

发布时间：2018-10-26 19:03

【摘要】：针对会宝岭铁矿斜坡道在夏季存在严重的污风积聚问题,为了及时将积聚在斜坡道中的污风排出,分别取当地全年温度最低和最高月份1月和7月中的某一天为样本,通过测算一天中矿井自然风压大小,建立自然风压在一天中的变化曲线图,得出7月15∶00左右自然风压最低,此时矿井通风最困难,斜坡道处的污风积聚最严重。通过现场测算,1月和7月斜坡道联通-410 m水平联络巷处的风量大小分别为6.9 m~3/s和2.3 m~3/s,结合斜坡道受运输矿车造成的活塞风影响,考虑通风困难时期在斜坡道与-130 m水平的联络巷处安设风幕装置,计算阻风率为31%。运用Ventsim软件对矿井通风系统进行风路解算,得出斜坡道在-410 m水平联络巷处的风量为7.5 m~3/s,优于冬季通风最容易时期的风量。现场应用表明,该风幕装置运行效果良好。
[Abstract]:In view of the serious problem of the accumulation of polluted wind in the slope of Huibao Ling Iron Mine in summer, in order to discharge the accumulated wind in time, the local temperature is the lowest in the whole year and the highest one in January and one day in July, respectively. By measuring and calculating the natural wind pressure of mine in one day and establishing the curve of the change of natural wind pressure in one day, it is concluded that the natural wind pressure is the lowest around 15:00 in July, when mine ventilation is the most difficult, and the dirty wind accumulation at the ramp is the most serious. According to field measurements, the wind volume at the horizontal connection lane of the ramp link -410 m in January and July is 6.9 m / 3 / s and 2.3 m / 3 / s, respectively. Combined with the impact of piston wind caused by the transport mining car, the ramp is affected by the piston wind. Considering the installation of air curtain at the ramp and -130 m level contact lane during difficult ventilation period, the wind resistance rate is calculated to be 31. By using Ventsim software to calculate the ventilation path of mine ventilation system, it is concluded that the wind volume of the ramp is 7.5 m / 3 / s at the level of -410 m, which is better than the wind volume in the easiest period of winter ventilation. The field application shows that the air curtain works well.
【作者单位】：山东科技大学矿业与安全工程学院;山东省临沂矿业集团会宝岭铁矿;
【分类号】：TD72;TD861.1

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