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Fluid dynamics based modelling of the Falcon concentrator for ultrafine particle beneficiationud

机译:基于流体动力学的Falcon选矿厂超细颗粒选矿建模 ud

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摘要

Enhanced gravity separators are widely used in minerals beneficiation, as their superior gravity field enables them to separate particles within narrow classes of density and size. This study aims to shed light on the Falcon concentrator’s ability to separate particles within size and density ranges lower than usual, say 5 to 60 μm and 1.2 to 3.0 s.g. respectively. As differential particle settling is expected to be the prevailing separation mechanism under such conditions, this study presents the workings of a predictive Falcon separation model that embeds phenomenological fluid and particle flow simulation inside the Falcon’s flowing film. Adding to the novelty of modelling the Falcon concentratorudusing a fluid mechanics approach, one point of practical significance within this work is the derivation of the Falcon’s partition function from fluid flow simulation results.ud
机译:增强型重力分离器广泛用于矿物选矿,因为其卓越的重力场使它们能够在狭窄的密度和尺寸类别中分离出颗粒。这项研究旨在揭示Falcon选矿机能够分离尺寸和密度范围低于通常水平(例如5至60μm和1.2至3.0 s.g.)的颗粒的能力。分别。由于预计在这种情况下差分颗粒沉降是主要的分离机制,因此本研究提出了一种预测性Falcon分离模型的工作原理,该模型将现象流体和颗粒流模拟嵌入了Falcon的流动膜中。使用流体力学方法增加了Falcon选矿机建模的新颖性,这项工作的实际意义之一是从流体流动模拟结果推导Falcon的分配函数。

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