Review and Optimization of the Hudbay Constancia Comminution Circuit
*M. Medina1, G. Sotomayor1, V. Manchego1, J. Bonilla1, W. Valery2, R. Valle2, K. Duffy2, E. Wang2, C. Plasencia2
Hudbay Perú SAC, Hudbay Minerals Av. Jorge Chávez 235 Dpto 701, Lima, Lima 18
Hatch Pty Ltd. 61 Petrie Terrace, B...
09-Jul-2024
Mine to Flotation Process Optimization at Chinalco Toromocho OperationDai Fangrong1, Dong Yang1, Alfonso Muñoz1, Walter Valery2, Roberto Valle3, Erico Tabosa2, Joyce Siong2 and Claudia Plasencia3
Minera Chinalco, Peru
Hatch, Australia
Hatch, Peru
*This paper was presented at Procemin-Geomet...
09-Jul-2024
MODIFIED BOND AND RITTINGER ENERGY-SIZE RELATIONSHIPS FOR LABORATORY FINE GRINDING A. Jankovic1#, W. Valery1, M. Sederkenny2, K. Duffy1
Hatch, 61 Petrie Terrace, Brisbane Qld, 4000 Australia
Queensland Alumina Limited, Gladstone, Qld, Australia
*This paper was presented at the 2023 Internatio...
09-Jul-2024
Real-Time Estimation of SAG Mill Charge Characteristics for Process Optimization
*P. Toor1, W. Valery1, S. Morrell2, K. Duffy1
Hatch 61 Petrie Terrace. Brisbane, QLD, 4000, Australia
SMC Testing, Kenmore Hills, QLD, 4069, Australia
(*Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.)*This paper was...
09-Jul-2024
Integrated Mine-To-Mill Optimization of the Toromocho Operation at Minera Chinalco, Perú
*D. Fangrong1, D. Yang1, A. Muñoz1, W. Valery2, R. Valle2, B. Bonfils2, and C. Plasencia2
Minera Chinalco Perú S.A. Av. El Derby 250, Piso 20, Lima 33, Perú
Hatch Pty Ltd. 61 Petrie Terrace, Brisbane, Queen...
09-Jul-2024
Mine-to-Mill Optimization and Continuous Improvement of Lundin Mining's Chapada Operation in Brazil
*G. Evangelista1, A. Moreira1, F. Moura1, I. Souza1, F. Resende1, P. Henrique1, J. Corsini2, A. Ribeiro2, W. Valery3,R. Valle3, R. Hayashida3, B. Bonfils3, K. Duffy3, and C. Plasencia3
Lundin Mini...
09-Jul-2024
Review and Upgrade of the Throughput Forecast Model of Minera Los Pelambres
Francisco Abbott1, Liduvina Rodriguez1, Michel Morales1, Walter Valery2, Roberto Valle3, Rodrigo Hayashida4, Benjamin Bonfils2, Kristy-Ann Duffy2 and Claudia Plasencia3
Minera Los Pelambres, Antofagasta Minerals, Chile...
09-Jul-2024
The Novel EDS Multishaft Mill – A Case Study
B.E. Friedlanda*, T. Chenjeb, C.K. Oberholzera
Energy & Densification Systems, Bryanston, Johannesburg 2191, South Africa
Anglo American – Technology Development, Brisbane City, QLD 4000, Australia
*Corresponding author email: This email address is being protected from spambots. You need JavaScript enabled to view it....
09-Jul-2024
Performance Analysis of HRC™ HPGR in Manufactured Sand Production
Júlio Cesar Figueiredo de Almeida 1,2,*, Homero Delboni, Jr. 2, Rafael Bento 3, Alfredo Reggio 2 and Everson Cremonese 2
Metso Outotec, Sorocaba 18087-101, Brazil
Department of Mining and Petroleum Engineering, University of Sao...
09-Jul-2024
Pilot Testing and Plant Design Comparison of Dry VRM Milling plus Magnetic Separation with AG and Ball Milling plus Magnetic Separation for Grange Resources' Southdown Ore
D David1, C Stanton2, D. Olwagen3, Dr C Gerold4, C Schmitz5, S Baaken6, M Everitt7
FAusIMM CP(Met), Senior Consultant, Woo...
09-Jul-2024
Commercialisation Pathway for Low Energy Gyratory Rolls Crusher Technology
M Drechsler1, W Skinner2
1. Mark Drechsler, Director, CBSM Mining Services Pty Ltd, Adelaide SA 5167, This email address is being protected from spambots. You need JavaScript enabled to view it.
2. William Skinner, Research Professor, Future Industries Institute, University of South Australia, M...
15-Dec-2023
Commercialisation pathway for low energy wet/dry gyratory rolls crusher comminution technology
Mark Drechsler a, William Skinner b c
aDirector, CBSM Mining Services Pty Ltd, Adelaide, SA 5167, Australia
bFuture Industries Institute, University of South Australia, Maw...
07-Nov-2023
Semi-analytical modelling of a multi-shaft mill
Carlos Les (a),∗, James M. Finley (a), Boaz Friedland (b)
a) Element Digital Engineering, United Kingdom
b) Energy and Densification Systems (EDS), Johannesburg, South Africa
*This paper was presented at MEi Communution 23 Conference held...
18-Sep-2023
Fractal Energy: Combining fractal dimension of fracture surfaces and Size Specific Energy to describe comminution
Grant Ballantyne Director of Technical Solutions, Ausenco This email address is being protected from spambots. You need JavaScript enabled to view it.
*This paper was presented at MEi Communution 23 Conference held 17-20 April 2023 in Cape Town, So...
15-Sep-2023
Pumping sustainably - power and water consumption in mineral processing plants: someone should care
A Varghese1 4 S Martins2, E Lessing3, G M Hassan5 and A Karrech6
Business Development Manager - Pumps, Metso Outotec, Perth WA Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Research and Development Engineer,...
12-Jul-2023
Helping to reduce mining industry carbon emissions: A step-by-step guide to sizing and selection of energy efficient high pressure grinding rolls circuits
Stephen Morrell SMC Testing Pty Ltd, Australia
Keywords: Comminution, Energy efficiency, Carbon emissions, High pressure grinding rolls
ABSTRA...
12-Jul-2023
Microwave Heating Behaviour of Ores and its Application to High-Power Microwave Assisted Comminution and Ore Sorting
J. Forster1, A. Olmsted2, X. Tian3, D. Boucher1, M. Goldbaum1, C. A. Pickles2, E. R. Bobicki4
1. University of Toronto, Toronto, ON, Canada2. Queen’s University, Kingston, ON,...
12-Jul-2023
Innovations in Comminution
Greg Lane, Chief Technical Officer, Ausenco
Grant Ballantyne, Director Technical Solutions, Ausenco
Bianca Foggiatto, Director Comminution & Processing, Ausenco
Watch Full Webinar here
Agenda
1. Why focus on comminu...
12-Jul-2023
Bueno, Torvela, Chandramohan, Liedes, Powell, Chavez Matus,
Published in Minerals Enginering April 2021
ABSTRACT
The mining industry needs a low-cost and reliable breakage characterization test which can rapidly process a large number of samples for geometallurgical modelling. The more samples a...
09-May-2022
Erol, Wettstein, Dance
Presented at Comminution '21 - April 2021
ABSTRACT
Over the past few years, Pinto Valley Mine of Capstone Copper has made steady improvements in mill throughput from a combination of blasting, crushing and grinding operational changes. Detailed data collection exercises (in...
09-May-2022
Shelley, Davies, Olivier and Atta Danso
ABSTRACT
This paper reflects on how measurements from inside an operating SAG mill might be used to better understand throughput, mill wear and energy dissipation within the mill. The paper discusses how the measurements might influence and enhance approach...
09-May-2022
Faramarzi, Napier-Munn, Morrison, Kanchibotla
Published in Minerals Engineering July 2020
ABSTRACT
The heterogeneous nature of orebodies introduces large uncertainties into all quantitative evaluations, process design and process predictions. Measuring the extent of the variability of ore compe...
09-May-2022
Camalan & Önal
Published in Mining, Metallurgy & Exploration October 2020
ABSTRACT
Mineral liberation is one of the primary objectives in comminution circuits for the downstream separation of valuable minerals. Breaking minerals through their grain boundaries (grain-boundary breakage) ena...
09-May-2022
Evangelista, Moreira, Moura, Souza, Resende, Lisboa, Corsini, Ribeiro, Valery, Valle, Hayashida, Plasencia
Presented at Procemin-GEOMET 2021
ABSTRACT
Hatch and Enaex conducted a joint Mine-to-Mill optimization project at Lundin Mining’s Chapada operation in Brazil. The main objective was to maxim...
29-Nov-2021
Regino, Wong, Lopez, Adams, Hobert, Wasmund
ABSTRACT
The use of fluidized beds to enhance the flotation efficiency of coarse particles has been practised industrially using Eriez’ HydroFloat® separator in phosphate and potash for many years and has recently been successfully extended to sulfide m...
12-Oct-2021
Bonfils, Valery, Jankovic, Duffy, Tabosa, Holtham
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
The benefits of Mine-to-Mill optimisation have been understood by the industry for many years. If well executed, with a structured methodology, the overall operation throughput (...
20-Jul-2021
Radford, Lovatt, Putland, Becker
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
The Gruyere Gold Project was discovered by Gold Road Resources Limited in October 2013 on the Yamarna Belt 200km east of Laverton in Western Australia. The Feasibility Study for Gruyere, which wa...
20-Jul-2021
Wang, Vazirizadeh, Rosario
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Advances in data science, machine learning, and artificial intelligence are transforming mining and mineral processing, and making them more algorithm intensive. The paradigm is shifting from one of detec...
19-Jul-2021
Papadopoulou, Asbjörnsson, Hulthén, Evertsson
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Crushing plant managers need to assess, manage, and communicate the environmental impact induced by their crushing plant operations as a step towards the sustainable development of the...
19-Jul-2021
Pechea
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Since 1952, Bond’s equation has been used as a standard to predict the specific energy of grinding for a given duty. The Bond’s equation considers that the exponent is constant for all conditions. Hukki, in 1961, pointed out...
19-Jul-2021
Ghoreishi-Madiseha, Shadi, Rafezi, Sasmito, Manouchehri, Hassani
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Weakening rocks by taking advantage of microwave-induced microcracks is a promising solution for comminution processes. This paper investigates the effects of microwa...
19-Jul-2021
Agbenuvor, Antonio, Jokovic,and Morrison
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Body breakage usually involves breakage of particles by compression between two surfaces or impacted against a rigid surface, with the latter of interest in this current study. This mode of...
19-Jul-2021
Published in Proceedings of the IMPC2020 Congress, SAIMM
Filippov, Tripathy, Filippova, Diot
ABSTRACT
Among different pre-treatment methods, a high voltage electric pulse was recently developed and is gaining popularity due to multi-benefits such as pre-weakening along the grain boundaries, as we...
12-Jul-2021
Published in Proceedings of the IMPC2020 Congress, SAIMM
Authors
Senchenkoa, Kulikov
ABSTRACT
The relationships revealed between ore hardness and specific energy consumed by crushing and grinding are described in the paper. A comparison of key technical and economical parameters of SAG and HPGR...
12-Jul-2021
Hassani, Shadi, Rafezi, Sasmito, Ghoreishi-Madiseh
ABSTRACT
Enhancing the energy-effectiveness of microwave-assisted fragmentation is one of the overlooked areas in the published literature. A novel calorimetric technique is proposed to quantify the effect of inductive heating within a microwave c...
07-Jun-2021
Frausto, Ballantyne, Runge, Powell, Wightman, Evans, Gonzalez, Gomez
ABSTRACT
The heuristic of a constant liberation by size independent of the degree of comminution has been established as a robust assumption over time. Therefore, when assessing the comminution circuit performance, achieving a fi...
07-Jun-2021
Gao, Qina, Hana, Han, Lia
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
In the present study, an innovative comminution technology of high-voltage pulse discharge was proposed for galena to weaken the mechanical property. The results of pre-treatment experiments indicated tha...
18-May-2021
Roper, Borissenko, Daniel
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Eccentric High Pressure Centrifugal Comminution (eHPCC) is a novel comminution device that provides a single step to achieve a desired target grind size. The mechanisms within the unit mirror particle brea...
18-May-2021
Valery, Duffy, Holtham, Tabosa, Andrade
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Pre-concentration has potential to significantly improve Mineral Resource efficiency by removing gangue early in the process, before energy intensive and expensive comminution and...
17-May-2021
A high-level study into mining energy use for the key mineral commodities of the future.
Author
Marc Allen, Technical Director, engeco
Report commissioned by The Weir Group PLC
Executive Summary
The mining industry plays a critical role at the heart of modern global economy, extracting and pro...
10-May-2021
Góralczyk, Krot, Radosław, Ogonowski
Abstract
Tumbling mills have been widely implemented in many industrial sectors for the grinding of bulk materials. They have been used for decades in the production of fines and in the final stages of ore comminution, where optimal levels for the enrichment p...
19-Apr-2021
Keeney, La Rosa, Walters, Rutter, Scott
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Bulk ore sorting technologies, whether surfaced based or penetrative, have seen an increased uptake by the mining industry for preconcentration application. As with all technologies...
30-Mar-2021
Anyimadu, Appeah Owusu, Peattie, Chamberlain, Aniawu – Asumakah
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
This is an integrated geology and plant improvement study arising from the heterogeneity seen in mineralogy and gold association at the Obuasi goldmine in Gh...
30-Mar-2021
Adair, Revell, King, Keeney
Presented at the Preconcentration Digital Conference November 2020
ABSTRACT
Grade Engineering®, integrated across the mine value chain, has a pivotal role to play in achieving step change reductions in energy and water usage in mine operations. High levels of gangue re...
29-Mar-2021
Pamparana, Kracht, Ortiz, Haas
Presented at COM 2019, At Vancouver, Canada
ABSTRACT
This work explores the effect of ore hardness variability on the design of a solar photovoltaic system with battery storage and grid backup, to operate a semi-autogenous grinding mill (SAG). First, a case of two s...
23-Jun-2020
K. Bru, R. Sousa, M. Leite, C. Broadbent, G. Stuart, D. Pashkevich, M. Martin, M. Kern, D. Parvaz
Minerals Engineering
ABSTRACT
Two approaches for the use of the Electric Pulse Fragmentation (EPF) in the beneficiation of a low-grade cassiterite schist ore were investigated through pilot-scale t...
23-Jun-2020
*K. Bru, M. Beaulieu, R. Sousa, M. Leite, A, De Sousa, E. Kol, J. Rozenkranz, D. de Parvaz
Minerals Engineering
ABSTRACT
Electric Pulse Fragmentation (EPF) is an innovative technology that uses High-Voltage Pulsed Power (HVPP) for the selective comminution of a material. This paper aims to compa...
23-Jun-2020
*P. Shelley, I. Molina, D. Patsikatheodorou
Presented at Procemin GEOMET 2019
ABSTRACT
The paper shows how measurements from inside an operating SAG mill are now a reality. The paper discusses how the measurements might affect and enhance energy efficient mill optimisation. Energy efficient comm...
23-Jun-2020
*K. Tungpalan, A. Nguyen, C. Evans, E. Manlapig, K. Nguyen
Presented at Procemin GEOMET 2019
ABSTRACT
Ore texture represents the fundamental ore properties that significantly influence processing behaviour. However, the current measurement to obtain detailed textural information is through the Q...
23-Jun-2020
*G. Ballantyne
Presented at SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
Assessment of comminution energy intensity has traditionally been confined to the crusher and mill motor power consumption. However, a measure of ancillary equipment power and the embodied energy consume...
23-Jun-2020