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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Multi-mineral cut-off grade optimization by grid search
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Multi-mineral cut-off grade optimization by grid search

机译：通过网格搜索优化多矿物边界品位

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摘要

Orebodies that contain more than one economically important mineral are generally evaluated by parametric cut-off grades. This approach often leads to mis-valuation of mineral deposits because cut-off grades are not based on the grades of each individual mineral and, because of the parametric formulation, are only indirectly related to the individual grade distributions. The only realistic approach is a formulation that accounts separately for each component mineral. The grid search method can be used as a means of multi-mineral cut-off grade optimization in this context.This paper describes the use of the grid search method in cut-off grade optimization for multi-mineral deposits. The authors introduce the general concepts of the method and; formulate its application to cut-off grade optimization; they describe a software implementation of the method that can accommodate cut-off grade optimization for mineral deposits that contain up to three economic minerals.
机译：含有一种以上具有重要经济意义的矿物的矿体通常通过参数临界等级进行评估。由于边界品位并非基于每种矿物的品位，并且由于参数公式化，因此仅间接地与个体品位分布相关，因此这种方法通常会导致矿产估价错误。唯一现实的方法是单独说明每种成分矿物质的配方。在这种情况下，可以将网格搜索方法用作多矿品位品位优化的一种方法。本文介绍了网格搜索方法在多矿物矿床品位品位优化中的应用。作者介绍了该方法的一般概念。阐述其在临界品位优化中的应用;他们描述了该方法的软件实现，该方法可以对包含最多三种经济矿物的矿床进行边界品位优化。

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