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钨、锡和稀有金属选矿厂生产的商品精矿一般由各小批精矿配成。配矿的要求是商品精矿的有用成分(或杂质)含量既不得低于(或高于)标准规定值,又不应过多的高于(或低于)标准规定值。本文介绍一种配矿方法,仅供参考。(一)配矿比的计算计算方法是根据既定条件,运用实物量、金属量平衡关系,列出线性方程组求解。若有n小批重量待求的精矿,则需n-1种成分的分析品位。由于存在称量误差和分析误差,商品精矿的计算重量应取规定批量与称量误差限之和,计算品位取标准规定值与分析误差限之和(或
Concentrates made from tungsten, tin and rare metal concentrates are generally made up of small quantities of concentrate. The requirement of ore blending is that the content of useful components (or impurities) of the commodity concentrate should neither be lower (or higher) than the standard value nor too higher (or lower) than the standard value. This article describes a method with ore, for reference purposes only. (A) calculation of ore ratio calculation method is based on the established conditions, the use of physical and metal balance, the list of linear equations to solve. If n small batch of concentrate to be found, you need n-1 ingredients of the analytical grade. Due to the weighing error and analysis error, the calculated weight of the commodity concentrate should be taken as the sum of the specified batch and weighing error limits, the calculated grade should be taken as the sum of the standard specified value and the analysis error limit (or