Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.4
2.2
Journals
Minerals
Special Issues
Advances and Applications of High-Pressure Grinding Rolls Designs and Operational...
share announcement

Advances and Applications of High-Pressure Grinding Rolls Designs and Operational Strategies

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

Deadline for manuscript submissions: 31 October 2026 | Viewed by 1353

Special Issue Editors

Dr. Victor A. Rodriguez

E-Mail Website
Guest Editor
Department of Metallurgical and Materials Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-972, Brazil
Interests: comminution; simulation; discrete element method; modeling; materials characterization; grinding; HPGR
Prof. Dr. Luís Marcelo M. Tavares

E-Mail Website
Guest Editor
Department of Metallurgical and Materials Engineering, Universidade Federal do Rio de Janeiro-UFRJ, Rio de Janeiro 21941-972, Brazil
Interests: mineral processing; modeling; simulation; comminution; physical concentration; coal preparation; discrete element method; degradation during handling; particle breakage
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As the mining industry moves toward lower-grade ores and higher sustainability standards, High-Pressure Grinding Rolls (HPGR) continues to gain prominence as a key solution for optimizing comminution efficiency and reducing operational costs. This Special Issue aims to bring together cutting-edge research on the latest HPGR innovations, including novel roller designs, improved wear materials, advanced control strategies, and integration with other comminution technologies. We invite researchers, industry professionals, and engineers to contribute original research articles, review papers, and case studies that address recent developments and future trends in HPGR design and application.

Dr. Victor A. Rodriguez
Prof. Dr. Luís Marcelo M. Tavares
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 250 words) can be sent to the Editorial Office for assessment.

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

  • HPGR
  • cheek plates
  • flanges
  • studs
  • wear
  • skewing

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

19 pages, 3557 KB  
Article
Optimization and Validation of Multi-Size Ball Load Scheme for an Industrial Ball Mill Based on Semi-Theoretical Calculations and DEM Simulations: A Case Study of a Copper Mine
by Zhong Luo, Qingfei Xiao, Mengtao Wang, Saizhen Jin, Guobin Wang, Yanwei Zhao, Sheng Jian and Feng Xie
Minerals 2026, 16(6), 563; https://doi.org/10.3390/min16060563 (registering DOI) - 23 May 2026
Abstract
A comprehensive and systematic study was conducted to address a series of key technical challenges encountered in the grinding process at a copper mine. These issues included the complex mechanical properties of the feed ore, which led to low grinding efficiency, difficulty in [...] Read more.
A comprehensive and systematic study was conducted to address a series of key technical challenges encountered in the grinding process at a copper mine. These issues included the complex mechanical properties of the feed ore, which led to low grinding efficiency, difficulty in achieving the required grinding fineness for flotation, uneven particle size distribution in the grinding products, and severe occurrences of overgrinding and undergrinding. Based on the semi-theoretical ball diameter formula, the optimal initial ball size distribution for the ball mill was precisely calculated as Φ70:Φ50:Φ40:Φ30 = 15:25:35:25. Through laboratory-scale grinding tests and Discrete Element Method (DEM) simulations, a systematic analysis of multiple indicators under three different ball loading schemes was performed, including the motion state of particles inside the mill, the collision behavior of the grinding media, and the energy distribution. This analysis confirmed the rationality and effectiveness of the literature scheme. Industrial trial results showed the following: the yield of the +0.20 mm fraction decreased by 4.15 percentage points, and the yield of the −0.010 mm fraction and its proportion relative to the −0.074 mm fraction decreased by 10.17 and 19.10 percentage points, respectively. Conversely, the yields of the intermediate separated fraction (−0.20 + 0.010 mm), the easily separated fraction (−0.074 + 0.018 mm) and the −0.074 mm qualified fraction increased by 14.32, 14.13, and 7.29 percentage points, respectively. The grinding technical efficiency improved by 19.55 percentage points. Furthermore, the specific steel ball consumption decreased by 46 g/t, a reduction of 5.07%. The copper concentrate recovery increased by 0.65 percentage points, resulting in an annual increase of 40.51 tons of copper metal, additional revenue of CNY 3.2483 million, and steel ball cost savings of CNY 603,500. Collectively, this optimization generated a total economic benefit of CNY 3.8518 million. By optimizing the ball size distribution, the particle size composition of the grinding products was significantly improved, the flotation indicators were enhanced, and the grinding media consumption cost was reduced, achieving quality improvement and efficiency increase in the mineral processing. This study provides a valuable reference for solving similar grinding problems. Full article
(This article belongs to the Special Issue Advances and Applications of High-Pressure Grinding Rolls Designs and Operational Strategies)
21 pages, 15027 KB  
Article
Simulation Model and Performance Analysis of High-Pressure Grinding Rolls Based on DEM-MBD
by Shijian Zhang, Yunpeng Ren, Chenhe Fan, Jilong Yu, Jintao Zang and Bo Wei
Minerals 2026, 16(4), 400; https://doi.org/10.3390/min16040400 - 14 Apr 2026
Viewed by 400
Abstract
High-pressure grinding rolls (HPGRs) are critical in mineral processing, making comprehensive research and analysis of their performance of great significance. This study focuses on the HPGR-3516 test prototype and develops an analytical model that combines the discrete element method (DEM) with multi-body dynamics [...] Read more.
High-pressure grinding rolls (HPGRs) are critical in mineral processing, making comprehensive research and analysis of their performance of great significance. This study focuses on the HPGR-3516 test prototype and develops an analytical model that combines the discrete element method (DEM) with multi-body dynamics (MBD). The influences of feed top size, roll speed, and specific press force on equipment performance were examined using analysis of variance (ANOVA) in conjunction with response surface methodology (RSM). A performance prediction model was established through regression analysis, followed by multi-objective optimization and experimental validation. The results indicate that increasing roll speed under high specific press force significantly reduces the roll gap, while the effect is negligible under low specific press force. Increasing roll speed improves throughput more substantially for fine feed than for coarse feed. The optimal process parameters were determined to be a feed top size of 8 mm, a roll speed of 0.37 m/s, and a specific press force of 4.84 N/mm2. In comparison to the original parameters, throughput increased by 15.81%, qualified particle size passing rate (QPR) improved by 7.85%, and roll gap decreased by 10.24%. This study offers valuable insights into predicting the dynamic performance of HPGRs and has significant engineering implications. Full article
(This article belongs to the Special Issue Advances and Applications of High-Pressure Grinding Rolls Designs and Operational Strategies)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop