Study on the flow field and improved separation performance of a three-stage cone water-only cyclone

Wang, Chi; Cui, Guangwen

doi:10.1016/j.mineng.2020.106637

Cited by 16 publications

(3 citation statements)

References 28 publications

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“…This modern modification in coal upgrading removed a large amount of high ash mud in the first stage cyclone, which eliminated the wide size negative effect on the density-based separation in the second stage cyclone [15]. Another way to enhance the separation effectiveness has been achieved by developing a three-stage cone water-only cyclone, which reduces the by-pass of dense particles to overflow by creating a larger axial and tangential velocities gradient compared with a single-stage water-only cyclone [2,16].…”

Section: Current Development In Water-only Cyclonementioning

confidence: 99%

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Recent Trends in Mineral Processing Based on Density and Particle Size – A review

Sobhy¹

2022

International Journal of Materials Technology and Innovation

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Most mineral beneficiation development in the world focus on size and density-based separation technologies. In recent years, ore size-based and density-based separation technologies have attracted more consideration to obtaining rough or final highquality products. Due to the dissimilarity of physical properties like particle size and density, valuable and gangue minerals can be segregated via size-based and density-based separation technologies. Removing the impurities and recovering the target minerals are accomplished by size-based separation technologies alone or are usually followed by cleaning processes utilizing density-based separation abilities. The density variation among valuable and gangue minerals leads to dissimilarities in settling velocity in a fluid medium (air or water) to promote the density-based separation process. In addition, the effect of densitybased separation processes is strongly influenced by the range of particle sizes to be treated. This paper thoroughly reviews the literature on recent advances in various gravity and sizing separation technologies, such as cyclones, enhanced wet separation, and dry separation from theoretical and technical aspects.

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Section: Current Development In Water-only Cyclonementioning

confidence: 99%

“…The separation medium is usually water in both hydrocyclones and water-only cyclones, while it is a medium of specific separating density in the dense medium cyclone. Also, a water-only cyclone has a wider cone angle than hydrocyclone and a dense medium cyclone [2]. In addition, there is a large overflow tube length in the case of a water-only…”

mentioning

confidence: 99%

Recent Trends in Mineral Processing Based on Density and Particle Size – A review

Sobhy¹

2022

International Journal of Materials Technology and Innovation

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“…Coarse particles are subjected to a high centrifugal force, which overcomes the drag force of fluid on these particles, moves them towards the sidewall of the hydrocyclone and then discharges from the underflow. Fine particles are affected by a low centrifugal force, and it is difficult to overcome the liquid flow resistance, which indicates that fine particles are only passively separated under fluid promotion and finally discharged from the overflow [4][5][6]. The principle of equal-settling speed classification of hydrocyclones determines the occurrence of the anti-enrichment phenomenon, which indicates that the undertow product contains excess fine particles, and the overflow product carries excess coarse particles [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Particle Motion Characteristics in W-Shaped Hydrocyclones

et al. 2021

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To investigate the multiphase flow characteristics and improve the classification mechanism of a W-shaped hydrocyclone, this paper adopts the numerical simulation method to evaluate the effects of the particle size and density on the separation characteristics and motion behavior of particles. Forces, such as the centrifugal inertia force, pressure gradient force and fluid drag force, which control particle motion, are analyzed, and the classification mechanism of W-shaped hydrocyclones is examined in terms of the particle distribution and separation efficiency. The results indicate that the radial centrifugal inertia and pressure gradient forces in W-shaped hydrocyclones are hundreds of times the gravity force, which is the main driver of radial motion. Particle density and size changes greatly impact the movement and distribution of coarse particles, but no notable change occurs in fine particles. With increasing particle density, the cut size decreases, and the fractionation accuracy increases.

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Influence of inlet velocity on the separation performance of a combined hydrocyclone

Zhang,

Hu,

Zhang

et al. 2024

Chemical Engineering and Processing - Process Intensification

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Study on the flow field and improved separation performance of a three-stage cone water-only cyclone

Cited by 16 publications

References 28 publications

Recent Trends in Mineral Processing Based on Density and Particle Size – A review

Recent Trends in Mineral Processing Based on Density and Particle Size – A review

Particle Motion Characteristics in W-Shaped Hydrocyclones

Influence of inlet velocity on the separation performance of a combined hydrocyclone

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