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南芬露天矿的平硐溜井,在刚投产的几年中,经常发生堵塞现象,磨损十分严重,但经过近几年在生产实践中的观察研究,不断改进,采取有效措施以后,保证了正常生产。一、平硐溜井的堵塞及防止与处理 (一)溜井堵塞地点及其原因经过多年生产实践证明,溜井经常产生堵塞的地点,绝大多数是在溜井两端的局部,主要是在贮矿段和放矿溜嘴闸门;其次是破碎机的下部,从排矿口到分支溜井一段。前者是由于溜嘴及贮矿段的结构要素等因素所引起,后者除上述因素外,是由于溜井拐向引起。在井身(干)部分,
In Nanfen open-pit mine, the run-out hole of an adit is often clogged during the first few years of operation. The wear and tear is very serious. After several years of observation and study in production practice, continuous improvement and effective measures have been taken to ensure normality produce. I. Blocking, Prevention and Handling of Adolescent Chutes (1) Locations of Choking Chutes and Their Causes After many years of production practice, it has been proved that chutes often have clogged spots, most of which are located at the two ends of the chute, mainly in the storage section and Ore slides gates; followed by the lower part of the crusher, from the discharge mouth to the branch of a section of the chute. The former is due to slippery mouth and the structural elements of the ore storage section and other factors, which in addition to the above factors, is due to the turn-off caused by the slip. In the wellbore (dry) section,