论文部分内容阅读
本文所指的矿体,倾角为10～25℃,厚度为8～35米,矿石和底盘岩石稳固,上盘岩石不稳固,随着放矿将自然冒落。目前许多矿山,主要是采用底盘漏斗电耙道出矿的分段崩落采矿法开采。该方法在生产中最突出的问题是:贫损过高,矿石实际损失率高达40—50％,贫化率也在20％以上;采切此过大,达21—32米/千吨。针对上述问题本文根据目前采矿方法,矿石运搬手段和端部出矿综合机械化的发展趋势,介绍以下出矿系统的改进方案,以供讨论和采纳时参考。
This article refers to the orebody, dip angle of 10 ~ 25 ℃, thickness of 8 to 35 meters, ore and chassis rock solid, hanging rock unstable, with the ore will naturally fall. At present, many mines, mainly the use of chassis funnel electric rake Road mining sub-caving mining. The most prominent problems of this method in production are as follows: the lean loss is too high, the actual loss rate of ore is as high as 40-50%, and the depletion rate is above 20%; the cutting and cutting is too large, reaching 21-32 m / kiloton. In view of the above problems, according to the current mining methods, the ore transport means and the end of the trend of the overall mechanization of mine outreach, introduce the following improvements to the mining system for discussion and adoption reference.