Using the discrete element method to analyze the breakage rate in a centrifugal/vibration mill

Lee, Hoon; Cho, Heechan; Kwon, Jihoe

doi:10.1016/j.powtec.2009.12.001

Cited by 44 publications

(23 citation statements)

References 18 publications

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“…The breakage parameters can be experimentally determined, but the amount of experimental error and the difficulty in estimating the overall breakage parameters for various grinding times are relevant issues here [14]. In particular, it may be difficult to apply experimental methods when the breakage does not follow first-order kinetics.…”

Section: Determination Of Breakage Parameters By Back-calculation Metmentioning

confidence: 99%

Breakage Characteristics of Heat-Treated Limestone Determined via Kinetic Modeling

Lee

Kim

et al. 2018

Minerals

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Abstract:In recent years, heat treatment has attracted attention as a means to improve the color sorting technology with the aim of improving the quality of low-grade limestone. The crucial stage in this technique is to evaluate the breakage characteristics of the sample materials after color sorting. In this study, the breakage characteristics of samples showing color differences after heat treatment and of the original raw material were investigated using a laboratory ball mill. The grinding was characterized using the population balance model. Specific rates of breakage and the primary breakage distribution were experimentally determined by first-order kinetic plots and the BII method. The breakage parameters were also back-calculated by employing a simplex method. Grinding of the three materials indicated first-order kinetics, and the experimental results were well described by the model with parameters obtained by back-calculating.

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Section: Determination Of Breakage Parameters By Back-calculation Metmentioning

confidence: 99%

Breakage Characteristics of Heat-Treated Limestone Determined via Kinetic Modeling

Lee

Kim

et al. 2018

Minerals

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“…Resorting to empiricism, some researchers have attempted to couple either the total or an average collision energy or power obtained using DEM to breakage rates or other measures of breakage intensity from batch grinding experiments (Kano and Saito, 1998;Mori et al, 2004;Kwan et al, 2005;Lee et al, 2010).…”

Section: Models That Use Lumped Information From Demmentioning

confidence: 99%

A Review of Advanced Ball Mill Modelling

Tavares¹

2017

KONA

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In the early 1990s the discrete element method (DEM) was used for the first time to simulate media motion in tumbling mills. Although it has been over a quarter of a century since this tool was first used to predict media motion it has not yet reached maturity to be used in predicting product size distribution and throughput of tumbling mills. However, there has not been shortage of attempts to do so. The literature is relatively vast in the topic and researchers who embark in this area of research will find it difficult to understand the current status of development and also the similarities and fundamental differences that exist amongst the various approaches that have been proposed and pursued over the years. The paper reviews the literature on the application of models based on distributed collision energy information to predict size reduction in tumbling mills, in particular ball mills, analyzing critically various approaches proposed, their limitations and achievements, identifying areas that still require development until the technology becomes ready for being used for optimizing and designing ball mills. Finally, the advances recently accomplished on the approach proposed by the author and his co-workers are then reviewed in greater detail.

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“…DEM simulations of a vibrational mill were performed by Lee et al [78] and correlated to breakage parameters in a PBM, which were estimated from experimental data. Further, they proposed a scale-up function for the mill based on the impact energy obtained from DEM simulations and the operating conditions.…”

Section: Milling and Breakagementioning

confidence: 99%

Discrete Element Modeling of Solid Dosage Manufacturing Processes

Barrasso

Ramachandran

2016

Methods in Pharmacology and Toxicology

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Solid dosage manufacturing primarily involves powder process operations, such as mixing, granulation, and compaction. A model-based approach can be used to develop a better scientific understanding of these processes and implement Quality by Design. These models must predict the critical quality attributes of the product based on process parameters, equipment geometry, and material properties. Discrete element modeling (DEM) is often used to capture mechanistic, particle-scale information, such as velocity and force profiles. In this chapter, recent literature studies that use the DEM to model solid dosage manufacturing processes will be presented and discussed.

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Using the discrete element method to analyze the breakage rate in a centrifugal/vibration mill

Cited by 44 publications

References 18 publications

Breakage Characteristics of Heat-Treated Limestone Determined via Kinetic Modeling

Breakage Characteristics of Heat-Treated Limestone Determined via Kinetic Modeling

A Review of Advanced Ball Mill Modelling

Discrete Element Modeling of Solid Dosage Manufacturing Processes

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