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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Development of a computer-aided application using Lane's algorithm to optimize cut-off grade
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Development of a computer-aided application using Lane's algorithm to optimize cut-off grade

机译：使用Lane的算法开发计算机辅助应用程序以优化截止等级

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摘要

The maximization of net present value (NPV) is a primary objective in open pit mine planning processes. In an attempt to meet this objective, cut-off grades are considered in all the stages of mining. There are three stages involved in resource extraction, namely mining, processing, and refining/marketing, which are all defined in Lane's approach. Using Lane's approach, the economics involved in each stage are identified indepen dently and interact to provide an optimum cut-off grade. A hypothetical block model is used to illustrate how a computer application (Cut-off Grade Optimiser) that was developed in this study is used in the optimization of cut-off grades using Lane's algorithm. This paper analyses the application of Lane's approach for a single element in cut-off grade optimization as applied in the calculation of the optimum cut-off grade through a computer-aided application. Although Lane's approach is not complex it is not widely applied to maximize the NPV of mining operations as the iterative calculations can be lengthy. The computer application developed in this study shows how Lane's algorithm combined with a linear programming function can optimize cut-off grade with regard to the complex situations faced by mining operations. The application saves users from performing otherwise lengthy, iterative calculations.
机译：净现值（NPV）的最大化是露天矿规划过程中的主要目标。为了达到这个目标，在采矿的所有阶段都考虑了品位等级。 Lane的方法定义了资源提取涉及的三个阶段，即开采，加工和提炼/营销。使用莱恩（Lane）的方法，可以独立地确定每个阶段涉及的经济学，并相互影响以提供最佳的截止等级。假设的块模型用于说明如何使用Lane的算法将本研究中开发的计算机应用程序（截止品位优化程序）用于截止品位的优化。本文分析了Lane方法在截止品位优化中对单个元素的应用，该方法通过计算机辅助应用计算最佳截止品位。尽管Lane的方法并不复杂，但由于迭代计算可能很漫长，因此并未广泛用于最大化采矿作业的NPV。在这项研究中开发的计算机应用程序说明了Lane的算法与线性编程功能相结合如何针对采矿作业面临的复杂情况优化了临界品位。该应用程序使用户免于执行冗长的迭代计算。

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