Improving comminution efficiency using classification: An attainable region approach

Khumalo, N.; Glasser, David; Hildebrandt, Diane; Hausberger, Brendon

doi:10.1016/j.powtec.2008.03.001

Cited by 22 publications

(11 citation statements)

References 12 publications

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“…The mechanistic approach includes the matrix model, which considers grinding as a series of breakage events and the kinetic model, namely the population balance model, which considers grinding as a continuous process. Other researchers focused their efforts on the advantages of the Attainable Region (AR) approach [10][11][12], while recently Shi and Xie used the t 10 procedure to simulate batch [13] and continuous [14] grinding in a ball mill.…”

Section: Introductionmentioning

confidence: 99%

Improved Modeling of the Grinding Process through the Combined Use of Matrix and Population Balance Models

Petrakis

Komnitsas

2017

Minerals

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Abstract:The mechanistic approach has proven so far to be flexible and successful for simulation of the grinding process. The basic idea underlying mechanistic models, namely the matrix and population balance models, is based on the identification of natural events during grinding. Since each model has its own capabilities and limitations, their combined use may offer additional advantages on this aspect. In this study, the matrix model and the selection function, namely the probability of breakage of the population balance model, were combined through a MATLAB code to predict the size distribution of the grinding products of quartz, marble, quartzite and metasandstone. The modeling results were in very good agreement with the particle size distributions obtained after grinding the feeds in a ball mill.

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Section: Introductionmentioning

confidence: 99%

Improved Modeling of the Grinding Process through the Combined Use of Matrix and Population Balance Models

Petrakis

Komnitsas

2017

Minerals

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“…Since milling can also be considered a rate process in which the various size classes break from larger to smaller sizes in a manner analogous to reactor systems, the AR approach has been extended and successfully applied to comminution [5][6][7]. The power of the AR approach is that it describes the behavior of different size classes throughout the milling process, and it can represent particle size distributions (PSDs) as single points in space [6].…”

Section: The Attainable Region (Ar) Analysis Methodsmentioning

confidence: 99%

A laboratory scale application of the attainable region technique on a platinum ore

et al. 2015

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“…The ball mill is an energy-intensive device used in grinding and crushing materials like ores, chemicals and coals. [1][2][3][4] The lifters are used with mill liners to enhance the milling efficiency and reduce the wear of mill shell. As shown in Figure 1, the regional distribution of charge motion inside the mill shell can be divided into four regions, i.e., cataracting region, cascading region, grinding region and fracture region.…”

Section: Introductionmentioning

confidence: 99%

Effect of the operating parameter and grinding media on the wear properties of lifter in ball mills

Yin

Peng

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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The wear of lifter in ball mill directly affects the grinding efficiency and economic cost. However, how to evaluate the variation of wear process and predict the wear distribution of lifter is poorly developed. To this end, a laboratory-scale ball mill was used to evaluate the variation of wear process of the lifter in different milling conditions of mill speed, ball filling, grinding media size and shape. Besides, a wear prediction method was used to compare and validate the experimental results. The experimental results showed that the Abbott-Firestone curve can evaluate the lifter surface topography. The wear rate of the lifter specimen is increased first and then decreased with mill speed and grinding media size. Increasing ball filling will increase the wear rate, and the grinding media shape of ball has a maximum wear rate. The wear characteristics of the lifter specimen are consisting of impact pit, indentation, plastic deformation and scratch. Furthermore, the discrete element method (DEM) simulation showed that the wear behavior on the upper surface is higher than that on the side surface of the lifter. The DEM simulation with Archard wear model is an effective tool to investigate the wear distribution on the lifter, which is in good consistent with the wear behavior measured by the experiment.

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Improving comminution efficiency using classification: An attainable region approach

Cited by 22 publications

References 12 publications

Improved Modeling of the Grinding Process through the Combined Use of Matrix and Population Balance Models

Improved Modeling of the Grinding Process through the Combined Use of Matrix and Population Balance Models

A laboratory scale application of the attainable region technique on a platinum ore

Effect of the operating parameter and grinding media on the wear properties of lifter in ball mills

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