1Boliden Mineral 2University of Queensland Julius Kruttschnitt Mineral Research Centre (JKMRC) 3Boliden Aitik
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 operating costs. At the heart of this is...
06-Jan-2020
1Natural Resources Canada2Corem 3University of British Columbia
The aim of the Crush It! Challenge is to accelerate transformative solutions to reduce energy usage in the mill. Natural Resources Canada supported competition for innovative energy-efficient comminution with a contribution of $10 mil...
06-Jan-2020
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 operation in 2003, which contributed to paving the way for the subsequent acceptance of HPGR technolo...
06-Jan-2020
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 and circuit configurations...
06-Jan-2020
Mineral processing consumes significant power, primarily in comminution, as well as significant amounts of water through hold-up in conventional tailings facilities. Reducing power and water consumption in comminution circuits can contribute to reduced operating costs and improved sustainability. Me...
06-Jan-2020
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 Columbia. The study focused on identifying opportunities for energy conservation in the semi-autogenous grinding (SAG)-ball...
06-Jan-2020
AG or SAG milling frequently becomes a bottle-neck in an operation as the generation of critical size pebbles and the subsequent required re-crushing of these results in an extra burden for the (S)AG mill in the form of a recirculating load of harder and more abrasive material.
HPGRs are high capac...
06-Jan-2020
17-Dec-2019
17-Dec-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
F.P. van der Meer
Canadian Mineral Processors Conference, 23-25 January 2018, Ottawa, Canada
ABSTRACT
HPGRs operate in a wide array of applications in mining and minerals. These range from relatively coarse crushing of copper and gold ores at one end of the spectrum to the processing of fine iron...
28-Jun-2019
Comminution energy curves (now)
15-Jan-2019
Next technologies
15-Jan-2019
Near technologies
15-Jan-2019
G S Lane, J Seppelt and E Wang
14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia
ABSTRACT
Newcrest’s Cadia concentrator operated from 1998 to 2012 with a traditional SABC grinding circuit treating Cadia open pit ore. The Cadia comminution circuit was well characte...
20-Dec-2018
G R Ballantyne, M Hilden, K Bartram and V Souto
14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia
ABSTRACT
Particle sorting allows partially liberated minerals to be separated prior to energy intensive fine grinding.
Sensors select particles for separation a...
23-Oct-2018
PETAR BODUROV & VASIL GENCHEV
Journal of Multidisciplinary Engineering Science and Technology. 4(1), January 2017
ABSTRACT
There is an alternative of the spherical grinding bodies. Innovative grinding bodies have shown in university tests with Bond Mill lower values of the Fred Bond Wi i...
05-Jul-2018
G R BALLANTYNE
Comminution ’18, April 16-19 2018, Cape Town, South Africa
Australia
ABSTRACT
Comminution Energy Curves are a resource developed at the JKMRC and made available by CEEC to the mining industry to compare and benchmark comminution energy intensity at mine sites.
However...
06-Jun-2018
M SCOTTMine Excellence 2018 – 3rd International Seminar of Operational Excellence in Mining, 21-23 March 2018, Santiago, Chile
Australia
ABSTRACT The Australian mining industry currently consumes 28% more water, 21% more energy and generates 19% greater emissions to maintain the same level of prod...
06-Jun-2018
B Nielsen, J Rohleder, H Lehto and C Robbe
MetPlant 2017 – Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11-12 Sep 2017, Perth, Australia
Abstract
Sensor-based ore sorting is being increasingly used to reduce the amount of low-grade and waste m...
26-Oct-2017
B C Povey, V Noll, K Lagutin and M Mryasov
MetPlant 2017 – Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11-12 Sep 2017, Perth, Australia
Abstract
The current Stoilensky magnetite concentrator comprises a three-stage crushing circuit followed b...
26-Oct-2017
G R Ballantyne, M Di Trento, I Lovatt and B Putland
MetPlant 2017 – Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 11-12 Sep 2017, Perth, Australia
Abstract
The Tropicana Gold Mine, owned by AngloGold Ashanti Australia Ltd (70% owned and managed...
26-Oct-2017
Shuji Owada, Sho Terada, Taiki Senga, Takao Namihira
49th Annual Conference of Metallurgists, Vancouver, Canada, August 27-30, 2017.
Abstract
Electrical disintegration (ED) is well known as a good comminution method to improve liberation of componential elements, because electron avalanche co...
26-Sep-2017
Robert E Mclvor
Mining Engineering, 2014, Vol. 66, No. 9, pp. 67-71. Official publication of the Society for Mining, Metallurgy & Exploration Inc.
ABSTRACT
Classification system efficiency (CSE) is a simple metric that can be used to measure and increase ball milling circuit efficiency. It is...
26-Aug-2017
Dry processing of magnetic iron ores – addressing cost and environmental issues
W Skinner (1) and J R Kelly (2)
AusIMM Iron Ore 2017 Conference, Perth, Australia, 24-26 July 2017. Paper Number: 86
ABSTRACT
The Iron ore industry has reached the end of an unprecedented period of ex...
26-Aug-2017
The Energy Saving Technology of Beneficiation of Iron Ore
V V KARMAZIN, M A BIKBOV AND A A BIKBOV
MAGNETIC AND ELECTRICAL SEPARATION, VOL 11 (4), PP 211-224
ABSTRACT
The qualitative and quantitative evaluation of liberation of economic minerals and thelevel of contamination of the process produc...
25-Aug-2017
G R BALLANTYNE, A MAINZA AND M S POWELL
PRESENTED AT WORLD GOLD CONFERENCE 2015, JOHANNESBURG, SOUTH AFRICA, 29 SEP – 1 OCT, 2015
ABSTRACT
The mining industry has acknowledged the need for an effective method and platform to benchmark comminution energy intensity and motivate action to impr...
18-Jul-2017
W VALERY (1), K DUFFY (1), P HOLTHAM (2), A REPLE (3), P WALKER (4), P ROSARIO (1)
PRESENTED AT IMPC 2016: XXVIII INTERNATIONAL MINERAL PROCESSING CONGRESS, AT QUEBEC CITY, CANADA
ABSTRACT
The mining industry is facing declining feed grades which require the mining and processing of larger volume...
18-Jul-2017
P STAPLES, G LANE, R BRAUN, B FOGGIATTO AND M P BUENO
PRESENTED AT SAG CONFERENCE, SIXTH INTERNATIONAL CONFERENCE ON SEMIAUTOGENOUS AND HIGH PRESSURE GRINDING TECHNOLOGY, VANCOUVER, 20-24 SEPTEMBER 2015.
ABSTRACT
Autogenous (AG) and semi-autogenous (SAG) grinding mills are considered a mature tec...
18-Jul-2017
S NKWANYANA AND B LOVEDAY (1)
PRESENTED AT COMMINUTION ’16, MINERALS ENGINEERING INTERNATIONAL, PUBLISHED IN MINERALS ENGINEERING VOLUMES 103-104, BARRY WILLS (ED), APRIL 2017.
ABSTRACT
Ball-mills are used widely for secondary grinding. Loveday (2010) reported on laboratory tests in which s...
18-Jul-2017
G S ANDERSON1 AND N W MCDONALD2
13TH AUSIMM MILL OPERATORS’ CONFERENCE, PERTH, WA, 10-12 OCTOBER 2016.
ABSTRACT
The IsaMill™ was originally developed to address liberation issues at Mount Isa Mines (now Glencore) operations, McArthur River and Mount Isa in the early 1990s. Follow...
18-Jul-2017
C CARRASCO1 2, L KEENEY 1 2, T J NAPIER-MUNN2, P BODE1
PRESENTED AT COMMINUTION ’16, MINERALS ENGINEERING INTERNATIONAL, PUBLISHED IN MINERALS ENGINEERING VOLUMES 103-104, BARRY WILLS (ED), APRIL 2017.
ABSTRACT
Grade Engineering® comprises a range of techniques aiming to reje...
18-Jul-2017
Comminution Circuit Design Considerations
G Lane (1), B Foggiatto (1), R Braun (1), M P Bueno (1), P Staples (2) and S Rivard (2)
49th Annual Canadian Minerals Processors Conference, Ottawa, Canada, 17-19 January 2017
ABSTRACT
This paper demonstrates the selection of grinding circui...
26-May-2017
Breaking Down Energy Consumption in Industry Grinding Mills
J Bouchard (1), G LeBlanc (2), M Levesque (3), P Radziszewski (4) and D Georges-Filteau (1)
49th Annual Canadian Minerals Processors Conference, Ottawa, Canada, 2017
ABSTRACT
Grinding mills are infamous for their extremely...
26-May-2017
The Effect of Choke Feeding a Gyratory Crusher on Throughput and Product Size
J -F Dupont (1), J McMullen (1) and D Rose (2)
49th Annual Canadian Minerals Processors Conference, Ottawa, Canada, 2017
ABSTRACT
The Detour Lake mine is located 200 km northeast of Timmins, Ontario, Canada...
26-May-2017
Optimisation of installed mill power post-installation of secondary crushing circuit at Northparkes Mines.
Y Sulianto, T Trott, D Morgan, T Bell, F Kock and B G Putland
AusIMM Mill Operators Conference 2016
ABSTRACT
Northparkes installed and commissioned a secondary crushing circui...
26-Apr-2017
Simplified hybrid semi-autogenous grinding mill control – explanation and practical results at the Porgera concentrator
S Ngunz, F van Zyl, F Orrante, E Beltran, M Westcott and S Wilson
AusIMM Mill Operators Conference 2016
ABSTRACT
The primary control objective of the project is to...
26-Apr-2017
The transition from semi-autogenous to autogenous milling at Waihi Gold
C Haines and D Bertoldi
AusIMM Mill Operators Conference 2016
ABSTRACT
The Waihi Gold Mine (WGM) operated by OceanaGold New Zealand Limited is a wholly owned subsidiary of the OceanaGold Corporation of Australi...
26-Apr-2017
Grinding circuit practices at Newmont
A Giblett and S Hart
AusIMM Mill Operators Conference 2016
ABSTRACT
In 2015 operations under the ownership and/or management of all Newmont Mining Corporation subsidiaries (Newmont) produced 5.7 Moz of gold and 619 Mlb of copper from mining opera...
26-Apr-2017
Upgrading low-grade gold ore stockpiles by preconcentration using ore sorting – an assessment of the economic impact and viability.
A N Parry and G van Wyk
Mill Operators Conference 2016
ABSTRACT
Sensor based automatic ore sorting technologies are used in the minerals industries to efficiently...
26-Apr-2017
Design, installation, commissioning and operation of fine grinding technology at the Kevitsa Mine
B Nielsen, H Lehto & B Musuku
AusIMM Mill Operators Conference 2016
ABSTRACT
The demand for fine and ultra-fine grinding associated with the processing of more challenging, finer gra...
26-Apr-2017
G Harbort and D Zoetbrood
ABSTRACT
The Phu Kham copper-gold operation in the Laos People’s Democratic Republic (PDR) is owned and operated by Phu Bia Mining Limited. PanAust Limited holds a 90 per cent interest in Phu Bia Mining Limited, with the remaining ten per cent held by the Laos PDR Gov...
15-Feb-2017
A Gibblett and M Daniel
ABSTRACT
The Global Mining Standards and Guidelines Group (GMSG) currently supports nine individual industry working groups focused on developing standards and guidelines for the mining industry. In 2013 the GMSG established the Industrial Comminution Efficiency (ICE) w...
15-Feb-2017
The way we make decisions about adopting energy efficient comminution technologies is complex, and there are multiple factors at play. Depending on the company and individual personalities, the weight of different motivating influences varies between:
energy cost
environmental co...
16-Aug-2016
In the face of increasing energy costs, limited water resources, more stringent legislation and lower feed grades, the mining industry is searching for more sustainable technologies and practices. Metso Process Technology and Innovation (PTI) is undertaking a research project, “Improving the resour...
15-Jul-2016
Abstract
With energy costs increasing and ore grades diminishing, the role of pre-concentration in hard rock mining operations has been gaining greater interest. To maximise energy conservation, the pre-concentration process should be conducted at as coarse a grind size as possible, while minimis...
11-Jun-2016
Abstract
The comminution energy curve is a profoundly simple graphical technique that displays detailed operating efficiency information for industrial comminution processes. The database underlying the methodology has recently more than doubled, to now contain a substantial fraction of the interna...
31-May-2016
Abstract
As the stirrer speed directly affects the motion of grinding media, and hence the interactions with material particles to be ground, the rotation speed of a stirred mill is well recognised as one of the most important factors affecting the grinding performance.
In this work, the effec...
09-May-2016
ABSTRACT
Simulation work was carried out to analyse how feeding a finer size distribution to a single stage SAG mill in closed circuit with hydro cyclones at Freda Rebecca Gold Mine would affect throughput and specific energy consumption using an Excel based milling process simulator developed by...
07-May-2016
Abstract
Comminution and classification circuits consume significant amounts of energy. Some estimates show that comminution processes accounts for around 40 % of the total energy consumed in mining operations and 1.5-1.8 % of the total national energy consumption in mining intensive countries such...
19-Apr-2016