Geometrical configuration of hydrocyclone for improving the separation performance

Hou, Dong; Zhao, Q.; Cui, Baoyu; Wei, Dezhou; Song, Zhenguo; Feng, Yuqing

doi:10.1016/j.apt.2021.103419

Cited by 30 publications

(8 citation statements)

References 48 publications

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“…Among these types, MS and CCC types have the lowest imperfection value and, in consequence, the highest separation performance with a cut size of 76 µm, while CC and C types have the lowest and largest cut size of 62 µm and 120 µm respectively. Besides, C and CCB have the lowest separation performance due to producing large turbulence [5]. In addition, the conical angle in the range from 3 o to 28 o at a varied cylindrical length-to-diameter ratio has a stronger effect than that at fixed cylindrical length on the separation efficiency [6].…”

Section: Current Development In Hydrocyclonementioning

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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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 Hydrocyclonementioning

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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“…Our team’s previous research suggests that a flat-bottomed structure contributes to the suppression of the bypass effect and the reduction in the mismatch of fine particles in underflows; moreover, coarse particles misplacement in overflow can be alleviated by optimizing the bottom wall to regulate the circulation flow of particles. Accordingly, a two cylindrical section hydrocyclone is proposed in terms of regulating the particle circulation flow, and further demonstrates that its separation effect is superior to flat-bottomed hydrocyclones. , Hence, exploring the effect of structural parameters on the separation performance of the two cylindrical section hydrocyclones based on the current work and carrying out structural optimization to further improve its separation performance are the priority of the current work.…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, a two cylindrical section hydrocyclone is proposed in terms of regulating the particle circulation flow, and further demonstrates that its separation effect is superior to flat-bottomed hydrocyclones. 26 , 27 Hence, exploring the effect of structural parameters on the separation performance of the two cylindrical section hydrocyclones based on the current work and carrying out structural optimization to further improve its separation performance are the priority of the current work.…”

Section: Introductionmentioning

confidence: 99%

Study on the Separation Performance of a Two Cylindrical Section Hydrocyclone under Various Height Ratios

Liu,

Chen,

Hou

et al. 2024

ACS Omega

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Two cylindrical section hydrocyclones can suppress particle misplacement by regulating the circulation flow, but few researchers have investigated the effect of the cylindrical height ratio. In this paper, numerical simulations and physical tests were conducted to investigate the effect of height ratio on the particle motion behavior and separation performance of the two cylindrical section hydrocyclone. According to the numerical simulation results, with increasing height ratio, the separation cut size decreased, the separation accuracy and recovery rate of medium and coarse particles in the underflow increased, the coarse particle misplacement in overflow decreased significantly, and the proportion of medium particle circulation flow gradually increased. According to the test results, the number of misplaced fine particles in underflow could be effectively reduced when H 1 /H 0 = 0.30. With increasing height ratio, the number of misplaced coarse particles in the overflow decreased and the classification efficiency of fine particles increased. The maximum separation efficiencies of medium and coarse particles could be obtained at H 1 /H 0 values of 0.47 and 0.17, respectively. Therefore, increasing the height ratio could inhibit coarse particle misplacement in overflow and improve the separation performance of two cylindrical section hydrocyclones.

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“…Research has been carried out to evaluate the impact on the internal flow behavior of the hydrocyclone applied in other fields. Accordingly, many suggestions for optimizing the structural parameters of hydrocyclones are put forward. , For example, the performance of hydrocyclones can be improved by changing the overflow pipe, − the cone section, and the column section . Since the inlet structure is the key point affecting the separation behavior of hydrocyclones, more attention is paid to the optimization of the inlet structure.…”

Section: Introductionmentioning

confidence: 99%

Effect of Spiral Inlet Geometric Parameters on the Performance of Hydrocyclones Used for In Situ Desanding and Natural Gas Hydrate Recovery in the Subsea

Qiu

Wang

et al. 2023

ACS Omega

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The inlet structure of hydrocyclones has great impact on performance. In this paper, the effects of spiral inlet geometric parameters on the flow field characteristics and separation performance were investigated by CFD. Numerical results show that the pitch has the largest influence, followed by the heads, the turns, and the steady flow cone. With the increase of the steady flow cone angle, the turbulence intensity increases. The efficiency, pressure drop, tangential velocity, sand volume fraction at the spigot, and natural gas hydrate (NGH) volume fraction at the vortex finder decrease, when the pitch increases. With the increase of the number of heads and turns, the efficiency, pressure drop, tangential velocity, the NGH volume fraction at the vortex finder, and the sand volume fraction at the spigot increase. The efficiency and pressure drop of hydrocyclones with the optimal parameters are 90% and 0.05 MPa, respectively. Therefore, the performance of the NGH hydrocyclone can be improved by increasing the inlet pitch and the number of spiral heads and inlet spiral turns. The results provide theoretical guidance for the engineering design of NGH in situ separators.

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Geometrical configuration of hydrocyclone for improving the separation performance

Cited by 30 publications

References 48 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

Study on the Separation Performance of a Two Cylindrical Section Hydrocyclone under Various Height Ratios

Effect of Spiral Inlet Geometric Parameters on the Performance of Hydrocyclones Used for In Situ Desanding and Natural Gas Hydrate Recovery in the Subsea

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