Prediction of the performance of dense medium cyclones in coal preparation

Jiang Chen, Kaiwei Chu, Ruiping Zou, Aibing Yu, Andrew Vince

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The Dense medium cyclone (DMC) is a high-tonnage device that is widely used to upgrade run-of-mine coal in coal industry. Its complicated multiphase flow structure is difficult to investigate experimentally. In recent years, Computational Fluid Dynamics (CFD) and in particular, its combination with Discrete Element Method (DEM) have been shown to be effective in overcoming this difficulty. However, such a mathematical model, particularly the CFD-DEM one, is very time-consuming in computation and not suitable for engineering application. In this paper, based on the CFD and CFD-DEM simulated data, a PC-based mathematical model is formulated to predict the performance of DMCs under various conditions. It first discusses how such a model can be developed, with its validity examined against the collected plant data. Then, the effects of some key variables related to DMC geometry, operational conditions and materials properties are examined. It is shown that the proposed model can indeed offer a convenient way to quantify the effects of different variables, being useful in the design and control of DMCs under different conditions.
Original languageEnglish
Pages (from-to)59 - 70
Number of pages12
JournalMinerals Engineering
Volume31
DOIs
Publication statusPublished - 2012
Externally publishedYes

Cite this

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title = "Prediction of the performance of dense medium cyclones in coal preparation",
abstract = "The Dense medium cyclone (DMC) is a high-tonnage device that is widely used to upgrade run-of-mine coal in coal industry. Its complicated multiphase flow structure is difficult to investigate experimentally. In recent years, Computational Fluid Dynamics (CFD) and in particular, its combination with Discrete Element Method (DEM) have been shown to be effective in overcoming this difficulty. However, such a mathematical model, particularly the CFD-DEM one, is very time-consuming in computation and not suitable for engineering application. In this paper, based on the CFD and CFD-DEM simulated data, a PC-based mathematical model is formulated to predict the performance of DMCs under various conditions. It first discusses how such a model can be developed, with its validity examined against the collected plant data. Then, the effects of some key variables related to DMC geometry, operational conditions and materials properties are examined. It is shown that the proposed model can indeed offer a convenient way to quantify the effects of different variables, being useful in the design and control of DMCs under different conditions.",
author = "Jiang Chen and Kaiwei Chu and Ruiping Zou and Aibing Yu and Andrew Vince",
year = "2012",
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language = "English",
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pages = "59 -- 70",
journal = "Minerals Engineering",
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}

Prediction of the performance of dense medium cyclones in coal preparation. / Chen, Jiang; Chu, Kaiwei; Zou, Ruiping; Yu, Aibing; Vince, Andrew.

In: Minerals Engineering, Vol. 31, 2012, p. 59 - 70.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Prediction of the performance of dense medium cyclones in coal preparation

AU - Chen, Jiang

AU - Chu, Kaiwei

AU - Zou, Ruiping

AU - Yu, Aibing

AU - Vince, Andrew

PY - 2012

Y1 - 2012

N2 - The Dense medium cyclone (DMC) is a high-tonnage device that is widely used to upgrade run-of-mine coal in coal industry. Its complicated multiphase flow structure is difficult to investigate experimentally. In recent years, Computational Fluid Dynamics (CFD) and in particular, its combination with Discrete Element Method (DEM) have been shown to be effective in overcoming this difficulty. However, such a mathematical model, particularly the CFD-DEM one, is very time-consuming in computation and not suitable for engineering application. In this paper, based on the CFD and CFD-DEM simulated data, a PC-based mathematical model is formulated to predict the performance of DMCs under various conditions. It first discusses how such a model can be developed, with its validity examined against the collected plant data. Then, the effects of some key variables related to DMC geometry, operational conditions and materials properties are examined. It is shown that the proposed model can indeed offer a convenient way to quantify the effects of different variables, being useful in the design and control of DMCs under different conditions.

AB - The Dense medium cyclone (DMC) is a high-tonnage device that is widely used to upgrade run-of-mine coal in coal industry. Its complicated multiphase flow structure is difficult to investigate experimentally. In recent years, Computational Fluid Dynamics (CFD) and in particular, its combination with Discrete Element Method (DEM) have been shown to be effective in overcoming this difficulty. However, such a mathematical model, particularly the CFD-DEM one, is very time-consuming in computation and not suitable for engineering application. In this paper, based on the CFD and CFD-DEM simulated data, a PC-based mathematical model is formulated to predict the performance of DMCs under various conditions. It first discusses how such a model can be developed, with its validity examined against the collected plant data. Then, the effects of some key variables related to DMC geometry, operational conditions and materials properties are examined. It is shown that the proposed model can indeed offer a convenient way to quantify the effects of different variables, being useful in the design and control of DMCs under different conditions.

UR - http://goo.gl/LOfqxm

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DO - 10.1016/j.mineng.2011.11.010

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EP - 70

JO - Minerals Engineering

JF - Minerals Engineering

SN - 0892-6875

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