The beneficiation efficiency is a comprehensive indicator indicating the effectiveness of the beneficiation process. When there is no selection, its value is zero. When the best ideal sorting effect is achieved, its value is 100%. There are two kinds of calculation formulas for the more commonly used beneficiation efficiency (E), one is:
The other is:
In the above two formulas, ε is the ore recovery rate; γ is the concentrate yield; α is the ore yield; β is the concentrate grade; θ is the tailing grade; and β is the percentage of the useful components in the pure mineral of the target mineral. .
The first type applies to the rough selection and pre-selection of low-grade ore with ore grade and concentrate grade and low rich ore ratio. The second type is suitable for low grade ore concentrate grade and high non-ferrous metals and rare metals ore sorting, but also for sorting gold ore. For iron , manganese , chromium and other ores with high ore grades and low rich ore ratios, both formulas can be applied.
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