Comminution

Comminution

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
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
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
*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
*P. Lind, K. Erwin, R. Chandramohan, D. Tweed, G. Lane, P. Staples, S. Hille, B. Foggiatto, J. Awmack, B. Patterson Presented at SAG Conference Vancouver, Canada September 22 – 26, 2019 ABSTRACT Newmont Goldcorp’s Peñasquito operation, located in the state of Zacatecas in northwest Mexico, is cur...
23-Jun-2020
Larson Presented at the SAG Conference Vancouver, Canada September 22 – 26, 2019 Abstract While stirred mills in regrind and fine grinding duties have become more accepted, there continue to be questions about the testwork used for scaleup and comparisons. One reliable reality check for any futur...
01-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
*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
G. Ballantyne, A. Giblett SAG Conference Vancouver, Canada September 22 – 26, 2019 ABSTRACT Newmont has a demonstrated history as a leading investor in comminution technology developments. Most notably the cornerstone high pressure grinding rolls (HPGR) demonstration plant at the Lone Tree operat...
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
E BAAWUAH1, C KELSEY2, J ADDAI-MENSAH3 AND W SKINNER4 1. PhD student, Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. FAusIMM, Technical Director, IMP Technologies P/L, 83A Proctor Rd, Hope Forest, SA 5172. Email: chri...
16-Dec-2019
S.Morrell MetPlant 2019, September 9-10, Perth, Australia ABSTRACT Whether it is for the purposes of the design of new comminution circuit, a brownfield expansion or a geometallurgical program, one of the principal keys to success is to “know your orebody”. To do so requires the formulation and e...
24-Sep-2019
Y. Dumais, R. Lemire, T. Banerjee and H. Weitz Canadian Mineral Processors Conference, 23-25 January 2018, Ottawa, Canada ABSTRACT Agnico Eagle LaRonde produces over 300,000 ounces of gold annually, along with silver, zinc and copper by-products. The LaRonde plant consists of a conventional SAG a...
28-Jun-2019
F.C.F. Batista, R. deS. Almeida, L. deA. Silva, T. Banerjee, D. Gudgeon CMP 2018, 23-25 January 2018, Ottawa, Canada ABSTRACT Yamana Chapada’s mine is one of the larger copper-gold mines in Brazil. The mine is located in Goias state, in the central part of Brazil. The mine has estimated Mineral R...
24-Apr-2019
J.STARKEY1, B. HILSHER2, S. REEVES3 and J. HEDDERSON4 J. Starkey (1), B. Hilscher (2), S. Reeves (3) and J. Hedderson (4)  1. Sacré-Davey Engineering, and Starkey & Associates Inc, Oakville, Canada. Email: This email address is being protected from spambots. You need JavaScript enabled to view it. 2. Sacré-Davey Engineering, Oakville,...
23-Apr-2019
A Giblett and B Putland 14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia ABSTRACT This paper provides a simple guiding framework for grinding circuit optimisation, focussing on common themes in past optimisation success stories, the conditions for success and techniq...
23-Oct-2018
B Wong and T G Vizcarra 14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia ABSTRACT Optimisation projects are regularly undertaken without knowing the root cause of an issue. It is all well and good to trial a multitude of flotation reagents, change the operating...
22-Oct-2018