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露天矿平硐溜井开拓,具有基建时间短,运输设备少,运距短,运营费低和基建投资少等优点。但在通风防尘方面存在一些问题。特别是板式给矿机卸矿除尘较为突出。我矿平硐溜井通风除尘,分兰山和尖山两系统。设计采用主巷进风,基建时施工的平行导坑回风。两系统进、回风巷都为同标高抽出式通风。板式给矿机卸矿除尘,采用卸矿时喷雾洒水。投产以来,除尘效果很差,
Open-pit mine out of the hole to open up, with a short construction time, less transport equipment, short distance, low operating costs and less capital investment advantages. However, there are some problems in ventilation and dust control. In particular, the plate to the mine machine dust removal is more prominent. I mine drift hole ventilation and dust removal, sub-Lan Shan and Jianshan two systems. The design of the main lane into the wind, construction of the parallel pilot pit return air. Two systems into the air return Lane are the same standard out of ventilation. Plate to mine machine dust removal, the use of unloading mine spray watering. Since put into operation, dust removal effect is poor,