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
Chandramohan, Bodurov, Kolev, Weerasekara, Lane
Presented at MEI Comminution '21 - April 19 - 22
ABSTRACT
Improving the grinding efficiency in tumbling mills is essential to minimising comminution energy consumption. Over the years, fundamental insights gained from ball mill operation provided en...
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
Edmunds, Wilkens, Akerstrom, Haines
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
The Ridgeway Concentrator at Newcrest Cadia was commissioned in 2002 as an ABC circuit to treat the ore from the Ridgeway sublevel cave (SLC) at around 5MTPA. Consisting of a single pinion 32’...
20-Jul-2021
Palaniandy, Carr, Johns, Williams
Presented at the AusIMM Mill Operators Conference June 2021
ABSTRACT
Haile Gold Mine is an open pitgold mine located in the state of South Carolina, USA. The concentrator consists of a semi-autogenous mill–ball mill–pebble crusher (SABC) circuit, flash flotation,...
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
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
Jiancheng He, Shijie Lu, Qiheng Zhu, DuboWang, Xiaoxu Sun, Jianchao Yao
Published in Proceedings of the IMPC2020 Congress, SAIMM
ABSTRACT
Tower mill is considered to have a better regrinding and fine grinding effect compared with ball mill, and its application is much broader. The spiral agitator...
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
ABSTRACT
Flotation concentrate originating from the Asarel-Medet porphyry copper mining and processing complex in Bulgaria has been subjected to regrinding using a Ro-Star mill; the effects of which on the downstream metallurgical behaviour...
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
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
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, 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
*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
M. Sherman, A. Collins
Presented at World Gold 2019
ABSTRACT
The ever changing demands of providing operating teams with grinding circuits that meet their needs has resulted in equipment suppliers offering a broader range of grinding equipment and researchers investigating more efficient methods...
23-Jun-2020
T.Vizcarra, B. Wong
Presented at SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
JKTech has completed a comparative testing program of Bond tests as an addition to its “round-robin” quality control program for JK Drop Weight (JKDW) and SMC tests. Over seventy Bond tests of repr...
22-Jun-2020
B Putland & R Sciberras
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
Many ore bodies are getting harder, more abrasive, and lower in grade. One of the issues designers face is minimizing capital and operating costs when treating such ores. Designers often look to secondar...
06-Jan-2020
A. McElroy, M. Powell, J. Tilberg, M. Hilden, M. Yahyaei, M Linna, A. Johnansson
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
The new Aitik autogenous grinding (AG) milling circuit was based on the successful original milling plant at Aitik, with a focus on low life-of-mine o...
06-Jan-2020
*P. Pearce, C. Gagnon, B. Klein, R. McIvor, S. Makni, F. Wang, A. Kumar
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
The aim of the Crush It! Challenge is to accelerate transformative solutions to reduce energy usage in the mill. Natural Resources Canada supported competition...
06-Jan-2020
M Powell, C Bozbay, S Kanchibotla, B Bonfils, A Musunuri, V Jokovic, M Hilden, J Young, E Yalcin
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
In expanding the mine to process considerably more competent ore sources, this semi-autogenous-ball mill-crusher (SABC) circuit with a...
06-Jan-2020
R Butar, M Becker, B Putland, I Lovatt, F Kock
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
Continuous improvement is a major key performance indicator (KPI) for many metallurgical operations. Improvement never happens by itself and is rarely attributed to a single party or p...
06-Jan-2020
G. Ballantyne
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 consumed through media wear is required to compare disparate equipment types an...
06-Jan-2020
S Nadolski, R Haycock, K Li, S Seiler, A Kumar
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
A comprehensive energy study was carried out for the Red Chris mill, which processes copper-gold ore at a rate of 30,000 tonnes per day (t/d) and is located in Northern British Columbi...
06-Jan-2020
GREG LANE1, SIMON HILLE2, JOE PEASE3, & MATT PYLE4
1Ausenco, 2Newmont Goldcorp, 3Mineralis, 4Ausenco
SAG Conference Vancouver, Canada September 22 – 26, 2019
ABSTRACT
A comprehensive energy study was carried out for the Red Chris mill, which processes copper-gold ore at a rate of 30,000 tonn...
06-Jan-2020
17-Dec-2019
R Diaz-Colunga, S Gomez-Hernandez and R Espinosa-Gomez
MetPlant 2019, September 9-10, Perth, Australia
ABSTRACT
Fresnillo Plc (Fresnillo) is a Mexican Company owned by the “BAL Group”, focused on the production of gold and silver. It was established in 2008, initially consisting of three com...
24-Sep-2019
C J Greet, D Morgan, J Davis, G Small and X du Toit
MetPlant 2019, September 9-10, Perth, Australia
ABSTRACT
Laboratory test work completed on samples of Northparkes ore indicated that shifting from forged steel to more electrochemically inert high chrome grinding media produced a more oxidi...
24-Sep-2019
Hamid Manouchehri
Comminution '18, April 16-19, Cape Town, South Africa
ABSTRACT
As an energy intensive industry, mining consumes about 6-7% of total world’s energy to produce raw materials for subsequent industries. Grinding, however, is the most energy intensive process in mining which is respo...
25-Jul-2019
B. Simonian
Mount Milligan mine performance update, 51st Canadian Mineral Processors conference, 22-24 January 2019, Ottawa, Canada
ABSTRACT
The Mount Milligan mine, located in central British Columbia, began operation in September 2013 with a design nameplate capacity of 62,500 dry metric tonnes...
19-Feb-2019
O. Mejia and B. Klein
Maintaining grinding efficiency and mill throughput when liners wear, 51st Canadian Mineral Processors conference, 22-24 January 2019, Ottawa, Canada
ABSTRACT
A study was undertaken to investigate the relationship between mill liner wear and grinding energy efficiency and to...
19-Feb-2019
W. Conger, J.F. DuPont, R.E. McIvor, T.P. WeldumW. Conger, J.F. DuPont, R.E. McIvor, T.P. Weldum
Mining Engineering, November 2018, pp. 28-37
The objective of the study conducted by the authors is to determine what media size(s) addition will maximize any given plant ball mill’s grinding efficienc...
16-Jan-2019
ABSTRACT
Comminution is usually the heaviest energy-consuming process in the mine site. These days when efficiency concerns are becoming more and more important, developing a reliable and highly efficient way to grind and crush ore is a new field being explored by main industrial players. This pa...
25-Nov-2015
Johnson
Abstract
In achieving the necessary liberation for separation of valuable minerals from ores, metallurgists have traditionally selected from the competing options for size reduction devices by making decisions based on various types of costs. While these costs remain important in s...
23-Aug-2006