论文部分内容阅读
在露采矿山,块段原矿品位和开采生产品位的预测是生产中经常的、大量的工作之一,矿石品位预测的正确与否,对矿产资源的充分利用、矿石质量的控制及矿山生产门稳定性有着十分重大的意义。本文拟以内蒙某露采铁矿为例,就矿石品位的预测问题作些讨论。一、块段原矿品位的预测问题露采矿山生产勘探的主要手段之一是槽探,即在开采台阶上以较密的线距(约25~50米)布置探槽,在槽中连续取样,以槽探的资料用算术平均法或加权平均法来预测块段原矿的品位。这种估计方法的精度及可靠性如何,过去缺乏实际对比资料。近年来,国外多采用估计
Prediction of raw ore grade and production grade in block mining is one of the frequent and large-scale work in production. The prediction of ore grade is correct or not, and the utilization of mineral resources, ore quality control and mine production gate Stability is of great importance. This article intends to take an open mining iron ore in Inner Mongolia as an example, to discuss the prediction of ore grade. First, the block ore grade prediction problems One of the main means of exploration and production of open-pit mining trench exploration, that is, in the mining step to a more dense line spacing (about 25 to 50 meters) layout of the probe, continuous sampling in the tank , To slotted data using arithmetic mean or weighted average method to predict the quality of block ore. The accuracy and reliability of this estimation method, the past lack of actual comparison data. In recent years, more estimates are used abroad