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开凿井筒时的通风计算是用掘进独头巷道所制定的方法进行的,但是,凿井时有自然对流风,这是一个加速通风过程的附加因素,应合理地利用这一自然潜力,对于深井(超过800米),当现有的扇风机不能保证向工作面供给按目前通风公式所确定的风量,因而在打这些井筒的通风设计中,只好附加通风设备(沿井筒铺设第二条通风管路,扇风机的串联设备等),从而使工作复杂化,并引起资金多余耗费时,这一点就显得特别重要。通风计算时,考虑到自然对流风的作用,就能以现有的扇风机保证深井的正常通风。
Ventilation calculations at the time of drilling a wellbore are carried out by means of tunneling of a single roadway. However, natural convection during sinking is an additional factor that accelerates the ventilation process. This natural potential should be used rationally. For deep wells (More than 800 meters). When the existing fan can not guarantee to supply the working surface with the air volume determined by the current ventilation formula, ventilation is required in the ventilation design of these shafts, and a second ventilation pipe Road, fan fan series equipment, etc.), so that the work is complicated, and cause unnecessary extra expenditure of funds, it is particularly important. Ventilation calculation, taking into account the role of natural convection wind, you can use the existing fan to ensure the normal ventilation of deep wells.