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Revisiting a flotation cell benchmark
Minerals Engineering ( IF 4.8 ) Pub Date : 2023-05-26 , DOI: 10.1016/j.mineng.2023.108134
Siân Parkes, Peipei Wang, Kevin P. Galvin

Developing a flotation benchmark to compare different flotation systems has been challenging due to the variation that exists in flotation cell types, geometry, and internal hydrodynamics. Parkes et al (2022) focused on the product flux passing through the upper surface as a Performance Measure, interpreting a batch mechanical cell as a steady-state plug flow device, equivalent to infinite steady-state tanks in series. This work reveals a conundrum that arises out of the tanks in series analysis when applied to a system of fixed total volume. The free surface of the system increases with the number of stages, therefore leading to a decline in the product flux and hence the Performance Measure. This Technical Note resolves the issue by always using tanks of one size, comparing the result for N tanks in series with an equivalent number of batch cells operating in parallel. The analysis provides a much stronger and clearer framework for the flotation benchmark.



中文翻译:

重新审视浮选槽基准

由于浮选槽类型、几何形状和内部流体动力学存在差异,开发浮选基准来比较不同的浮选系统一直具有挑战性。Parkes 等人 (2022) 将通过上表面的产品流量作为性能衡量标准,将批处理机械电池解释为稳态活塞流装置,相当于串联的无限稳态罐。这项工作揭示了一个难题,该难题在应用于固定总体积的系统时在串联分析中出现。系统的自由表面随着级数的增加而增加,因此导致产品通量下降,从而导致性能指标下降。本技术说明通过始终使用一种尺寸的水箱解决了这个问题,将 N 个串联储罐的结果与同等数量的并联批处理电池的结果进行比较。该分析为上市基准提供了一个更强大、更清晰的框架。

更新日期:2023-05-26
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