Development of a Steady-State Partition Curve from a Dense Medium Cyclone Dynamic Model in Coal Beneficiation

Meyer, Ewald Jonathan; Craig, I.K.

doi:10.3182/20110828-6-it-1002.02846

Cited by 4 publications

(6 citation statements)

References 6 publications

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“…This means that the models will cater for different operating conditions such as changes in ore feed rate or changes in medium RD. This paper also shows how the dynamic model of the DMC can be reduced to a steady-state model, similar to the work by Meyer and Craig (2011), which is then simulated to produce a partition curve. This partition curve is compared to the actual plant cyclone partition curve.…”

Section: Resultsmentioning

confidence: 99%

“…These results are given for each low pass filter cut-off time period of 50s, 100s and 200s. Meyer and Craig (2011) was used to simulate the partition curve. A model fit was performed using the partition curve from Napier-Munn (1991).…”

Section: Experiments Twomentioning

confidence: 99%

“…Additional validation for the dynamic models of Meyer and Craig (2010) are presented in Meyer and Craig (2011), where the DMC model was reduced to a steady-state model which represents a DMC partition curve. This paper will further validate the DMC model by reducing the dynamic model developed from each experiment described above into a steady-state partition curve.…”

Section: Introductionmentioning

confidence: 99%

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Coal dense medium separation dynamic and steady-state modelling for process control

Meyer

Craig

2014

Minerals Engineering

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Coal dense medium separation is a popular beneficiation process used for the upgrading of coal ore into power station and metallurgical coal. The control systems used in coal beneficiation are often limited to localised regulatory control of feed rate and medium density. A coal dense medium separation process can benefit substantially from process control provided that a dynamic model for this process is available as was previously developed by the authors for a fine coal dense medium cyclone (DMC) circuit. In this paper, the previous model is adapted to a coarse coal DMC circuit and validated over a wider range of operating conditions using real plant data. The model is further validated by reducing it to steady-state to form a partition curve. This curve is then compared to one derived from actual production data. The derived model is able to provide an estimate of the DMC overflow coal product that should be sufficient for process control.

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Section: Resultsmentioning

confidence: 99%

Section: Experiments Twomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Coal dense medium separation dynamic and steady-state modelling for process control

Meyer

Craig

2014

Minerals Engineering

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“…The derivation is based on Meyer and Craig (2011) and Meyer and Craig (2014). A model fit was performed using the partition curve from equation 1.…”

Section: Partition Curvementioning

confidence: 99%

“…However, certain assumptions are modified to cater for the different mechanisms of separation between a cyclone model and a drum separator model. The validation of the dynamic drum separator model requires a steady-state model, similar to that of Meyer and Craig (2011). This paper initially describes the metallurgy of minerals processing regarding the operation of DMD separators in Section 2.…”

Section: Introductionmentioning

confidence: 99%

Dynamic model for a dense medium drum separator in coal beneficiation

Meyer

Craig

2015

Minerals Engineering

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Dense medium drum (DMD) separators are unit processes that are typically used to beneficiate coal, iron ore and other minerals by making use of density separation. Some coal dense medium separation plants typically include a DMD separator. The operational management of this unit process is often limited to localised control of medium density and feed mass flow rate. Dynamic models for coal dense medium separation have been developed by the authors with the intention of using them for dynamic control.A suitable dynamic model for a DMD separator could not been found in the available literature. This paper shows how the dynamic model for a dense medium cyclone has been applied to a DMD separator. The model parameters were determined and the performance of the model is evaluated using actual plant data from a Wemco drum. An additional aspect employing coal washability and drum partitioning behaviour is applied to estimate the grade of the product for model grade simulation and validation.

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Distribution rate prediction of gravity separation based on the arctangent model

Chen

Zhou

Wang

et al. 2020

International Journal of Coal Preparation and Utilization

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Development of a Steady-State Partition Curve from a Dense Medium Cyclone Dynamic Model in Coal Beneficiation

Cited by 4 publications

References 6 publications

Coal dense medium separation dynamic and steady-state modelling for process control

Coal dense medium separation dynamic and steady-state modelling for process control

Dynamic model for a dense medium drum separator in coal beneficiation

Distribution rate prediction of gravity separation based on the arctangent model

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