Volume Title: 12th Mill Operators' Conference 2014
Semi-autogenous grinding (SAG) mill control is complex and depends on many dynamic process variables. Good control strategies ensure that a mill is operating as close to optimal as possible, resulting in significant economic benefits to an operatio...
15-Nov-2014
Volume Title: 12th Mill Operators' Conference 2014
The grinding circuit at PT Newmont Nusa Tenggara (PTNNT) – Batu Hijau mine consists of two SABC (semi-autogenous milling, ball milling, pebble crushing) trains, including four 20′ × 33′6″ ball mills that have been lined with steel liners since the...
15-Nov-2014
Volume Title: 12th Mill Operators' Conference 2014
A voracious consumer of energy and grinding media, the modern ball milling circuit has a huge direct cost impact on a mineral processing operation. Through optimisation, grinding also has the potential to unlock great improvements in recovery and t...
15-Nov-2014
Volume Title: 12th Mill Operators' Conference 2014
Recovery of gold from gold ores has been driven by the available technology and its configuration in the process plant flow sheet.
Conventional practice in test work programs has the ore being ground fine (to 106 or 75 microns) to ensure liberat...
15-Nov-2014
Volume Title: 12th Mill Operators' Conference 2014
The Masbate gold deposits are situated on the island of Masbate, 350 km south of Manila. A new plant was commissioned in April 2009. The grinding circuit consists of one semi-autogenous (SAG) mill Ø9.75 m × 4.27 m, two ball mills Ø5.6 m × 7.1 m and...
15-Nov-2014
Volume Title: 12th Mill Operators' Conference 2014
A comprehensive Australia-wide survey of comminution energy consumption at copper and gold mines was presented by the authors at the 11th AusIMM Mill Operators’ Conference 2012. The database has been extended to include major overseas mines and use...
15-Nov-2014
Industry leaders gathered recently in Vancouver to pick up the baton from the 2012 CEEC Workshop team. The theme for the 2014 CEEC Workshop was Best Practice; identified in 2012 as an immediate pathway to energy efficiency and cost savings.
The team gathered for introductions; in some cases a cha...
14-Nov-2014
Abstract
Ore sorting technology represents a step-change improvement in eco-efficient comminution strategies. Sorting equipment offers the benefit of greatly reducing the comminution energy required per tonne of mineral processed by identifying stones that contain ore and separating them from sto...
02-Oct-2014
Andean countries (Chile, Peru, Bolivia and Argentina) have 42 semi-autogenous mills (SAG) in operation and there are more than 30 projects in the pipeline that consider SAG mills. At the end of the next decade, the total amount of SAG mills in this area will likely be close to 100.
There is a lot...
18-Sep-2014
Lulea University of Technology
This report concerns international overview and outlook on comminution technology for effective production of mineral powders in order to improve the product quality and reduce the energy consumption. These involve new and improved grinding mills (roller mills, stir...
23-Aug-2014
This report concerns international overview and outlook on comminution technology for effective production of mineral powders in order to improve the product quality and reduce the energy consumption. These involve new and improved grinding mills (roller mills, stirred media mills, vibration mills,...
23-Aug-2014
Abstract
Grade control and ore/waste delineation in open pit mining operations was traditionally based on the comparison of estimated grades with an economic cutoff. In the 1990s, an alternative approach to ore selection was applied and established, taking into account financial indicators through...
22-Aug-2014
Minerals Engineering Vol 63
Abstract
The pulp lifter is an integral component of autogenous (AG) and semi-autogenous (SAG) grinding mills as it controls the throughput, performance and efficiency of mills. The slurry transport from the AG/SAG mill through grate holes into the discharge trunnio...
12-Aug-2014
Minerals Engineering Vol 65
Abstract
Modelling the pulp fluid and its interaction with both the charge and the mill structure is an interesting challenge. The interaction is normally modelled with a combination of CFD and DEM, where the DEM particles (grinding balls) create the structure throu...
12-Aug-2014
Minerals Engineering Vol 65
Abstract
The present manuscript focuses on the development of a multivariable control based on the MPC strategy for a semiautogenous grinding (SAG) device. A previously published specific SAG model that uses a deep analysis of the internal device behavior was used f...
12-Aug-2014
Minerals Engineering Vol 65
Abstract
Several factors contribute to an often bleak outlook for mining and mineral processing projects in the current market: rising energy costs, falling ore body head grades, and lower profit margins on added value products have all made it more difficult to ope...
12-Aug-2014
Abstract
The pulp lifter is an integral component of autogenous (AG) and semi-autogenous (SAG) grinding mills as it controls the throughput, performance and efficiency of mills. The slurry transport from the AG/SAG mill through grate holes into the discharge trunnion is the main function of the pul...
12-Aug-2014
Abstract
Modelling the pulp fluid and its interaction with both the charge and the mill structure is an interesting challenge. The interaction is normally modelled with a combination of CFD and DEM, where the DEM particles (grinding balls) create the structure through which the fluid penetrates, an...
11-Aug-2014
Abstract
The present manuscript focuses on the development of a multivariable control based on the MPC strategy for a semiautogenous grinding (SAG) device. A previously published specific SAG model that uses a deep analysis of the internal device behavior was used for the MPC strategy development....
11-Aug-2014
Abstract
Several factors contribute to an often bleak outlook for mining and mineral processing projects in the current market: rising energy costs, falling ore body head grades, and lower profit margins on added value products have all made it more difficult to operate economically. Ore sorting is...
11-Aug-2014
The Integrated Extraction Simulator (IES) is the result of a substantial commitment by CRC ORE to produce a next-generation mining simulator that integrates all mining and mineral processing activities starting from drill & blast and proceeding through the entire mining value chain to the end of...
25-Jul-2014
Melbourne will be home to a globally significant annual mining conference as of 2014. The Victorian Deputy Premier and Minister for State Development Peter Ryan said the inaugural International Mining and Resources Conference (IMARC) will be held at the Melbourne Convention and Exhibition Centre fr...
15-Jul-2014
PwC's 11th annual review of global trends in the mining industry - Mine was hosted by Chris Dodd, Melbourne Office Managing Partner in early July 2014. PwC convened a panel of industry experts to discuss the implications of realigning expectations and to examine whether 2014/15 will see the renewed...
09-Jul-2014
Volume 65, 15 October 2014, Pages 109–114
A survey of the comminution energy requirements of gold and copper producing mines has been conducted to provide reliable benchmarking data which can be used to compare comminution energy consumption across different mine sites. The total gold and copper...
02-Jul-2014
Energy Performance Management
New Gold Inc. (New Afton Mine), located in Kamloops, British Columbia, has ISO 50001 certification and is continuously monitoring, tracking, evaluating and verifying energy performance of its gold and copper mining facilities. New Afton Mine demonstrates its commitme...
23-Jun-2014
"Improvements in energy efficiency help lower costs for businesses and consumers while safeguarding the environment. This year’s award winners are leading the way in improving productivity and environmental performance in the industrial sector through the responsible use of energy." said Parliamenta...
23-Jun-2014
ecoENERGY Efficiency for Industry Financial Assistance
The ecoENERGY Efficiency for Industry program is offering cost-shared assistance to industrial companies to implement energy management projects, including CAN/CSA-ISO 50001 Energy Management Systems Standard pilots, and for two types of energy...
19-Jun-2014
Grant Ballantyne is a South African born Australian. He graduated with first class honours from the University of Queensland with a bachelor of Engineering majoring in Chemical Engineering and Metallurgy in 2007. And recently he completed a Doctorate in Philosophy at the Julius Kruttschnitt Minera...
09-Jun-2014
Reproduced from the Heads Up CIPEC news, May 2014 Vol. XVIII, No. 5.
"Comminution, as the major energy user in mineral processing, is responsible for the majority of processing costs at a mine,” says Sarah Bocaut, Executive Officer of the Coalition for Energy Efficient Comminution (CEEC) based in...
07-Jun-2014
6th International Conference on Sustainable Development in the Minerals Industry
Abstract
Implementing underground processing affects a series of process steps like production, processing, backfilling and infrastructure and thus needs a proper integration into the whole underground mining proces...
05-Jun-2014
Inducement and Motivation
Mineral raw materials are essential for the sustainability of modern societies. The access to mineral raw materials is crucial for the sound functioning of the EU's economy. The European Technology Platform on Sustainable Mineral Resources (ETP SMR) established in 2005 a...
04-Jun-2014
ABSTRACT
Implementing underground processing affects a series of process steps like production, processing, backfilling and infrastructure and thus needs a proper integration into the whole underground mining process. This leads to the necessity of new holistic process models for the different unde...
04-Jun-2014
2014-06-25 GUATENG, SOUTH AFRICA - AFRICA · SUSTAINABLE DEVELOPMENT · SUSTAINABLE MINING · WORKSHOP
The mission of the WFEO-CEE Task Force on Sustainable Development and Mining is to raise global understanding of the importance of mining in achieving sustainable development. Application of sustai...
03-Jun-2014
A method for determining the minimum practical energy for comminution was developed and is presented in this paper. An objective of the method was to determine experimentally the energy-breakage relationship for a wide size range in order to evaluate the energy performance of both crushing and grind...
28-May-2014
24th International Mining Congress and Exhibition of Turkey, hosted by UCTEA Chamber of Mining Engineers of Turkey.
"It is our proud privilege and honor to extend a very warm and cordial invitation to all of you to attend the 24th International Mining Congress and Exhibition of Turkey from 14th...
27-May-2014
From Creamer Media Engineering News. May 23, 2014
Sustainability would be the single-biggest source of competitive advantage to any company in the future, mining major Exxaro Executive Head of Growth, Technology, Projects, Services and Ferrous, Ernst Venter, said on Wednesday.
Speaking at an e...
23-May-2014
Whittle Consulting’s (WCL) Enterprise Optimization (EO) solution is an integrated approach to maximizing the Net Present Value (NPV) of a mining business by simultaneously optimizing up to 10 different mechanisms across the mining value chain. The EO methodology which WCL has developed over the last...
23-May-2014
International Journal of Mineral Processing 2014
Abstract
Drop weight testers have been widely and successfully used to characterize ore breakage parameters for simulation of crushers and mills. In some cases, limitations of time, sample availability, and even cost, can prevent the conduction of...
23-May-2014
Put this event on your calnder. CEEC looks forward to exhibiting at the inaugural IMARC meeting. Drawing on a multitude of international relationships with key stakeholders from across the mining value chain, IMARC (International Mining and Resources Conference) has been created to suit the innovati...
23-May-2014
Abstract
Drop weight testers have been widely and successfully used to characterize ore breakage parameters for simulation of crushers and mills. In some cases, limitations of time, sample availability, and even cost, can prevent the conduction of these tests when preparing samples for chemical ana...
22-May-2014
CIEEDAC
The Canadian Industrial Energy End-Use Data and Analysis Centre (CIEEDAC) is part of the Energy and Materials Research Group in the School of Resource and Environmental Management, which is an academic programme in the Faculty of Environment at Simon Fraser University. They are dedicated...
21-May-2014
The 2014 Australian Budget report: A raft of councils and support services to nurture innovation and enterprise have been abolished and replaced with the Entrepreneurs’ Infrastructure Programme through the Department of Industry.
From 1 January 2015, The Entrepreneurs’ Infrastructure Programme wi...
17-May-2014
PwC Canada have just released their annual report on mining in British Columbia. Reporting on the production, exploration and other factors in the mining state, the report highlights the impact of higher energy prices.
"Pierre Lebel, Chairman of Imperial Metals Corporation, says about one third o...
16-May-2014
Abstract
An understanding of the breakdown of mine costs is an important tool for researchers and developers who seek to place novel cost-reducing unit operations in the wider general cost context. This paper provides a breakdown of operating costs in 63 mines by dividing them into three main categ...
16-May-2014
The recent progress in electrical comminution using high-voltage pulses and the technical challenges in order to bring this technology to the mining industry are outlined. Pre-weakening ore particles and preferential liberation of minerals at coarse sizes are the two major research outcomes that m...
16-May-2014
Minerals Engineering Journal Vol 56
Abstract
An understanding of the breakdown of mine costs is an important tool for researchers and developers who seek to place novel cost-reducing unit operations in the wider general cost context. This paper provides a breakdown of operating costs in 63 min...
16-May-2014
Chem. Eng. Technol. 2014, 37, No. 5, 1–6
The recent progress in electrical comminution using high-voltage pulses and the technical challenges in order to bring this technology to the mining industry are outlined. Pre-weakening ore particles and preferential liberation of minerals at coarse si...
16-May-2014
Sourced from the May 2014 CIM Magazine:
“Energy is a major concern: how reliable it is, how much it costs today and how much it may cost in five years, or 10. Renewable energy sources have matured to the point where they are starting to prove themselves in the mining industry. As a follow-up to t...
13-May-2014
Michael Scott is a graduate of the University of Queensland with Bachelor degrees in Science and Commerce. He is currently completing a Doctorate of Philosophy with the W.H. Bryan Mining and Geology Research Centre. His research is examining the financial impact of energy-efficiency, emission pric...
09-May-2014
The 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology (SAG 2015) will be held in Vancouver, British Columbia, Canada, on September 20th to September 24th, 2015. The organizing committee are pleased to invite you to submit an abstract for the upcoming SAG 2015 conf...
09-May-2014