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Minerals
Special Issues
Comminution and Comminution Circuits Optimisation: 3rd Edition
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Comminution and Comminution Circuits Optimisation: 3rd Edition

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Extractive Metallurgy".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 609

Special Issue Editors

Dr. Ngonidzashe Chimwani

E-Mail Website
Guest Editor
Institute for the Development of Energy for African Sustainability, University of South Africa, Pretoria 0003, South Africa
Interests: comminution; mill modelling; crusher modelling; circuits optimisation; attainable region
Special Issues, Collections and Topics in MDPI journals
Dr. Murray M. Bwalya

E-Mail Website
Guest Editor
School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg, Private Bag 3, Wits 2050, South Africa
Interests: comminution; mill modelling; crusher modelling; circuits optimisation; attainable region
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We aim to publish a Special Issue that presents a set of themed articles on “Comminution and Comminution Circuits Optimisation”. Our Special Issue will cover a broad range of relevant topics, such as:

  • The effects of mill or crusher operational parameters (mill speed, feed rate, slurry filling, liner configuration, residence time, ball filling, and ball size distribution), and an exit classification toward an optimised circuit;
  • The application of mathematical modelling for comminution equipment and for circuit optimisation;
  • Optimisation based on product size distribution and liberation;
  • The use of DEM, CFD, and other numerical methods to optimise equipment and milling circuits;
  • Ore testing and material characterisation;
  • Ore testing and scale-up;
  • Ore sampling and circuit optimisation;
  • Development of new comminution equipment.

Dr. Ngonidzashe Chimwani
Dr. Murray M. Bwalya
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • open mill
  • normal closed, reverse closed, and combined closed circuits
  • mill/crusher operational parameters
  • DEM
  • CFD
  • product size distribution
  • mineral liberation

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Published Papers (1 paper)

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Research

35 pages, 21260 KiB  
Article
Calibrating the Digital Twin of a Laboratory Ball Mill for Copper Ore Milling: Integrating Computer Vision and Discrete Element Method and Smoothed Particle Hydrodynamics (DEM-SPH) Simulations
by Błażej Doroszuk, Piotr Bortnowski, Maksymilian Ozdoba and Robert Król
Minerals 2024, 14(4), 407; https://doi.org/10.3390/min14040407 - 16 Apr 2024
Viewed by 452
Abstract
This article presents a novel approach to calibrating the digital twin of a laboratory mill used for copper ore milling. By integrating computer vision techniques for real-time data extraction and employing DualSPHysics simulations for various milling scenarios, including balls only, balls with ore, [...] Read more.
This article presents a novel approach to calibrating the digital twin of a laboratory mill used for copper ore milling. By integrating computer vision techniques for real-time data extraction and employing DualSPHysics simulations for various milling scenarios, including balls only, balls with ore, and balls with slurry, we achieve a high degree of accuracy in matching the digital twin’s behavior with actual mill operations. The calibration process is detailed for mills with three different diameters, highlighting the adjustments in simulation parameters necessary to account for the absence of ore. Understanding the dynamics between the suspension within the mill and the operation of the grinders is crucial for the future improvement of the grinding process. This knowledge paves the way for optimizing the process, not only in terms of the quality of the end product but primarily in terms of energy efficiency. A profound understanding of these interactions will enable engineers and technologists to design mills and grinding processes in a way that maximizes efficiency while minimizing energy consumption. Full article
(This article belongs to the Special Issue Comminution and Comminution Circuits Optimisation: 3rd Edition)
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