The Functional Performance Equation for ball milling circuits provides plant staff with a new means to improve circuit performance. However, successful execution of a plant processing performance improvement project, with verifiable improvements, requires a significant number of accompanying steps b...
13-Mar-2015
Abstract
Comminution is known to be an inefficient user of energy. This makes it the largest energy consumer in many mine sites and therefore a large component of cost. One would therefore have thought that improving comminution energy efficiency would be receiving the undivided attention of the mi...
13-Feb-2015
Abstract
This paper describes a methodology to monitor axial mixing in an IsaMill as a function of mill feed flow rate, mill tip speed and media load. Steady state temperature measurements (profiles) along the mill length were used to quantify the degree of mixing during the comminution process. Co...
13-Feb-2015
Abstract
Discrete Element Method (DEM) simulation using a breakage model is applied to study a broad range of existing compression based crushers to better understand machine level operation and to demonstrate that such modelling is now possible. Predictions for five types of crushers: jaw crusher,...
13-Feb-2015
ABSTRACT
Operational grinding mills emit significant acoustic emissions which are a consequence of the dynamic environment prevailing inside them. From a technical perspective, the noise presents an opportunity to determine some details of the processes occurring inside the mills. The noise generat...
11-Feb-2015
The process of grinding in drum mills is directly dependent on the dynamic forces occurring in the free movement of the grinding bodies in the volume. The subject of discussion are the potential impacts between grinding bodies having different shape and equal weight in a drum mill that has a diamet...
04-Feb-2015
Spherical grinding media (balls) are the most widely used media for comminution of ores by grinding.
One way to optimize the grinding process in a tumbling mill is associated with the development and testing of a new media shape. by modelling simulations study of the behavior of two types of grin...
04-Feb-2015
ABSTRACT
Copper Mountain’s concentrator was commissioned in May 2011. The circuit consists of a 34’ x 20’ EGL SAG mill, a Raptor 900 pebble crusher and two 24’ x 39’6” ball mills. Each mill is equipped with a 2 x 8500 HP dual pinion drive system. The plant was designed to process 1585 mtph of SAG...
03-Feb-2015
Abstract
An energy audit was conducted on a base metal milling facility where a top-down, bottom-up approach was presented to balance data measurements and estimates. The relation between throughput and specific electricity consumption, presented as a part-load efficiency curve for a milling operat...
03-Feb-2015
Today the main objective of improving the process of ore dressing is toreduce energy consumption and performance of the basic rule of auxiliary enrichment processes.
One of the modern means of ore destruction with a minimum of energy consumption is the inter-particle fracturing , for example in t...
07-Jan-2015
Most SAG grinding operations currently use ball size between 5.5 and 6 inch maximum size, However, in most cases the use of these ball sizes hasn't been justified by a phenomenological analysis of the real effect on the grinding process, but rather by trial and error. The analysis of the influence o...
07-Jan-2015
SABC circuits have gained widespread attention within China, and are being gradually applied to many mines. However the domestic knowledge of commintion process is still relatively basic, and the design and production management of the application of SABC technology lack guidance of scientific theor...
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
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: natural gas and diese...
04-Dec-2014
Case Study Snapshot
Industry: Mining
Energy Management System (EnMS) guidance/standard: CAN/CSA-ISO 50001
Key driver for EnMS: Cost reduction
Improvement focus: Energy efficiency for mine production and operations
Location: New Afton Mine, Kamloops, British Columbia, Canada
Product(s): Gold an...
04-Dec-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
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
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
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
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
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
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
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
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
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
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
Mintec, Inc have developed an interesting program to support operators in decision making. MineSight Performance Manager is designed to fill a need for coordinated, actionable reporting, analytics, and decision support at mine sites. Currently that need is largely filled by spreadsheets at many site...
06-May-2014
As of February 9th, 2014, over 813 abstracts have been approved for this year's IMPC! The Australians and Chinese led with their number of submissions, in a field of 47 countries: a truly international gathering of minds.
Comminution efficiency has 40 dedicated papers - an exciting result. In add...
29-Apr-2014
CEEC director Dr Mary Stewart recently presented a profile on energy efficiency in comminution at the Forum on Doubling Energy Productivity held in Sydney in April 2014. The program included focus on consumer and industrial productivity opportunities including a dedicated mining and agriculture ses...
27-Apr-2014
[caption id="attachment_3305" align="alignright" width="150"] Dr Fuerstenau[/caption]
This is the title of Dr. Douglas W. Fuerstenau's key note address at the International Minerals Engineering Congress, to be held in Mexico later this year. Dr Fuerstenau is the P. Malozemoff Professor Emeritus a...
15-Apr-2014
[caption id="attachment_3432" align="aligncenter" width="599"] Mike Battersby and Tim Napier-Munn at Comminution 2014[/caption]
Thanks to all the sponsors for supporting Comminution 2014: a very well attended meeting.
Some of the delegates gather...
12-Apr-2014
JON ALLEN (METSO MINING AND CONSTRUCTION TECHNOLOGY) gave the Quebec Mines 2013 delegates Metso's view on mill design and applications, as well as an update on work with JKMRC.
"Rising energy costs, requirements to minimize energy consumption, and a commitment to sustainable solutions in the mine...
02-Apr-2014
SGS's FRANÇOIS-OLIVIER VERRET presented the following summary on HPGR at the Quebec Mining meeting in November.
Several grindability tests were developed over the years to design grinding circuits or optimize existing operations. Each test has its own strengths and weak- nesses and purposes. It i...
01-Apr-2014
MICHEL BRISSETTE AND JOHN STARKEY (STARKEY & ASSOCIATES) reported on the step change possible in comminution efficiency when comminution is coupled with an innovative technology at Quebec Mines 2013.
"In recent years, the mining industry has shifted toward mining orebodies with decreasing gra...
31-Mar-2014
The following Abstract was presented at Quebec Mines 2013. Innovation using new technology delivers measurable results.
Laser-induced breakdown spectroscopy (LIBS): A new tool for the mining industry
MOHAMAD SABSABI, PAUL BOUCHARD, FRANÇOIS DOUCET, LÜTFÜ ÖZCAN, ANDRÉ MOREAU, AISSA HARHIRA AND...
27-Mar-2014
The premise: The mining industry must innovate if it is to meet the growing needs of the world. With an eye on international competition, all aspects of Québec’s mining cycle are affected, from exploration to mine site rehabilitation. In today’s open world, innovation is the product of research and...
26-Mar-2014
CEEC is participating in Mines and Money Hong Kong, bringing the CEEC message of improved shareholder value from improved comminution strategies to hundreds of mining companies in a 270-booth exhibition.
[caption id="attachment_3188" align="aligncenter" width="700"] Lt- Rt Tom Hunter Outotec, Ek...
26-Mar-2014
18 March 2014
Although the industry works in a competitive world, some challenges need to be faced together, writes Paul Dowd, Non-Executive Director, Oz Minerals.
It’s a well-known maxim in most industries that whatever competitive advantage one company thinks it may have at any poi...
26-Mar-2014
18 March 2014
If Australia is to remain a leading resources and energy exporter, our productivity and competitiveness must rise, writes Minister for Industry, the Honourable Ian Macfarlane.
Australia has long been a world leader in the resources and energy sector.
From exploration to development,...
25-Mar-2014
The Phoenix secondary crusher installation has been successful with grinding energy consumption decreased significantly (15-20%) against a modest increase in crushing energy. Phoenix is a fascinating case study as the approach taken is different to what has typically been done and what is recommend...
21-Mar-2014
CRC ORE aims to improve the productivity of mining operations by working with the industry to apply system-based analysis methods to increase unit metal productivity. This work has resulted in an integrated operational solution and system-value approach built around Grade Engineering®.
This con...
18-Mar-2014
The CEEC Medal celebrates and recognises the contribution of outstanding research and field work on beneficial strategies for eco-efficient comminution, as stated in CEEC’s Mission and Objective. The Medal is awarded annually to the author/s of the most outstanding published paper, article or case s...
14-Mar-2014
CERAWeek is the energy industry’s preeminent gathering of industry leaders and government officials, offering new ideas, insight, and discussions on major strategic issues facing the global energy industry. 2014 marks the 33rd anniversary for the annual executive conference. 2,300+ senior energy exe...
11-Mar-2014
Mineral Processing and Extractive Metallurgy: 100 Years of Innovation presents more than a century of innovation drivers that have advanced the mineral processing industry. Trends, developments, and improvements are discussed in depth, and likely areas for future innovations are explored.
Edited...
28-Feb-2014