回风井是指矿井通风系统中排出污风的风井。回风井一般都是专用的,因为排风流中含有大量的有毒有害气体和粉尘,因而回风井口应设在距工业区及居民区较远地方。
阐述了造成主井回风的自然热位差产生原因和对通风系统的影响,以及治理办法。
Mine, the causes of natural thermal potential difference in return air in main shaft and its influence on mine ventilation system and the control methods.
同时提出生产矿山加强回风道维护的重要性,以及在设计和布置通风井时应注意的问题。
The importance for the mine to strengthen the maintenance of the air return way and the points needing attention in designing and allocating the ventilation shaft are pointed out.
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