Case Study

Case Study

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
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
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
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 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
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
Abstract The Dumont deposit is a large (1,179 Mt proven and probable reserve) low grade (0.27% nickel) nickel sulphide project located in the Abitibi region 25 km west of Amos, Quebec. Royal Nickel Corporation acquired the project in 2007 and has since taken the project from a scoping study in 20...
08-Apr-2016
Abstract AngloGold Ashanti was an early adopter of High Pressure Grinding Roll (HPGR) technology at both Tropicana Mine and the Gramalote Project. The increased energy efficiency achieved by HPGRs through confined bed breakage has been extensively researched in small scale tests, but slow industry...
01-Apr-2016
Abstract The Detour Lake mine is located in north-eastern Ontario, approximately  three hundred kilometres north-east of Timmins and 185 kilometres by road north-east of Cochrane. The mill processes a free milling gold ore using both gravity circuit and leaching with a state of the art carbon-in...
20-Mar-2016
Abstract Declining ore grade, leading to increased material transport and plant throughout requirements, is one of the major challenges in the current mining environment. This is accompanied by rising energy and labour costs, decreasing plant productivity and the requirement for highest plant avail...
20-Jan-2016
SAG 2015 A simple strategy is required for assessing the efficiency with which comminution circuits apply energy to achieve size reduction. A coherent methodology has been developed, based on well established theories, to graphically identify the opportunities for process improvement and the pote...
03-Jan-2016
ABSTRACT Blasting plays a major role in the fragmentation of rock in open pit mining, which is then crushed and processed before the final product is obtained. Tailoring the blasting method to suit rock mass characteristics can lead to significant improvements downstream. Mine to Mill is a method...
25-Nov-2015
ABSTRACT In non-ferrous metal mining operations, it is generally necessary to crush and grind the ore to a very fine particle size to effectively liberate the contained mineral from the host rock. Fragmentation by blasting is the first stage of this comminution process. Numerous studies and indepen...
09-Sep-2015
Abstract DRAMP was approached by the ARM/Lion Ore JV during July 2006 to conduct a feasibility study and Control Budget Estimate for a new Greenfield’s project for their NKOMATI Ni mine 45km east of Machadadorp. The scope included the evaluation and review of previous studies as well as a techno-...
17-Apr-2015
New Gold Inc.’s New Afton concentrator commenced operation in June 2012, producing a copper-gold-silver concentrate. During the first two years of operation, various optimization efforts have improved mill throughput, recoveries and concentrate grade. Daily mill throughput has increased 20% above th...
03-Apr-2015
Traditional motors for milling technology has relied on either Wound Rotor Induction, Low Speed Synchronous Motors, or Asynchronous Induction Motors with mechanical gear reducers. A new alternative is now offered: The Low Speed Asynchronous Motor. This alternative provides the benefit of reduced com...
16-Mar-2015
Lake Shore Gold is engaged in commercial gold production at both the Timmins West and Bell Creek mines, located in Timmins, Ontario. Run of mine ore is processed at the Bell Creek mill which consists of a conventional gold mill flow sheet involving crushing, grinding, gravity concentration and carbo...
13-Mar-2015
Taseko Mines Limited Gibraltar copper-molybdenum mine recommenced operation in 2004 with the initiation of a series of development projects to increase throughput capacity as well as modernize the mine. In the second staged development project, a VTM- 1250-WB regrind mill was selected to replace...
13-Mar-2015
Recent copper price evolution pushes modern mining industry even harder to achieve highest production with maximum efficiency. Operations are bound by numerous contractual and environmental conditions that bring a high degree of complexity to both the operators controlling the process and the plant...
13-Mar-2015
In recent years, DEM ( discrete element method) software, along with 3D laser measuring equipment, have become powerful tools to describe mill charge behavior, as well as forces acting on the liners of SAG mills. With the aim of contributing to streamline this application of the advanced technologie...
06-Dec-2014
EEO program Industry: Mining, minerals processing Key driver for optimisation: Productivity Improvement Focus: Process control Location: Laverton, Western Australia Product(s): Gold Cost to implement: NA Annual Savings: NA Payback Period: NA Employees: 500 Energy sources: natura...
04-Dec-2014