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  • SME
    Outlook For Copper Prices – Up Or Down?

    By John E. Tilton

    During the past several years — much to the delight of producing firms and countries — copper prices have surged from under $1 to more than $3/lb. Anyone familiar with the industry also knows that si

    Jan 1, 2006

  • SME
    An Evaluation Of Microseismic Activity Associated With Major Roof Falls In A Limestone Mine: A Case Study

    By T. Bajpayee, J. Ellenberger

    Microseismic monitoring and evaluation is one aspect of the National Institute for Occupational Safety and Health (NIOSH) research program. Roof falls are often preceded by a period of elevated micro

    Jan 1, 2007

  • SME
    A Novel Approach To Flotation Cell Design

    By P. Koh

    A novel approach incorporating computational fluid dynamics (CFD) and flotation modelling has been used for investigating flotation cell designs. CFD modelling has increasingly been employed to enhanc

    Jan 1, 2011

  • SME
    U.S. Longwall Development Projected to Increase

    By James F. Kvitkovich, George V. Weisdack

    Editor’s note: This is the second part of a two-part series on longwall mining in the United States. Part one was published in the December 2005 issue of ME (pp. 21-26). It provided a history of lo

    Jan 1, 2006

  • SME
    Specifications For Initial Support In Rock Tunnels

    By William F. Daly, William H. Hansmire

    Installation of initial tunnel support is often the most uncertain element of work in the design of, and a contractor bidding on, construction of a rock tunnel. The risks the construction contractor a

    Jan 1, 1985

  • SME
    Communication : The missing link in the minerals industry

    By Pat C. Hautala, J. R. Hoskins

    This is a new era for the minerals industry. Never before has there been more need for effective communication. So said Robert Anderson, chairman and chief executive officer of Hanna Mining Co. He was

    Jan 1, 1985

  • SME
    One Mineralogist’s View of the PDAC Meeting

    By Bruce Geller

    Attending the Prospectors and Developers Association of Canada (PDAC) meeting and exhibit has become an annual tradition for many in the mining industry. Similar to last year’s synopsis, this report

    Jan 1, 2003

  • SME
    Theory And Practices Of Fully Mechanized Longwall Mining In Steeply Dipping Coal Seams

    Mining steeply dipping coal seams is a difficult task in the mining industry. Prior to 1996, fully mechanized longwall mining methods along the seam strike direction were tried in China and other coun

    Jan 1, 2012

  • SME
    Coal (Coal production by coal-producing regions, 2001)

    With the dawning of a new century came the beginning of a new era in the coal industry. Instead of the traditional practice of only buying and selling produced coal in the United States, a coal futur

    Jan 1, 2002

  • SME
    Pebble Project Moves Forward After Election Victory

    In Alaska?s southwest corner, in the Bristol Bay region, 476 holes have been drilled to help define the size of the Pebble Project. The results indicate that the deposit holds close to 32 Mt (72 billi

    Jan 1, 2009

  • SME
    Sao Paulo Metro Project?Control Of Settlements In Variable Soil Conditions Through EPB Pressure And Bicomponent Backfill Grout

    By Lorenzo Pellegrini

    The respect of EPB reference pressure during TBM advance and hyperbaric activities, the complete and effective filling of the annular gap between tunnel lining extrados and the excavation section and

  • SME
    Nitrogen Inertization At San Juan Coal Company’s Longwall Operation

    By Jacques F. Abrahamse, Kevin A. Bahe, T. Arthur Palm, Gregory E. McCluskey, Stephen L. Bessinger

    Introduction Basis For System San Juan Coal Company (SJCC) is a subsidiary of BHP Billiton. Until recently, BHP Billiton operated three surface mines in northwestern New Mexico: Navajo, San Juan,

    Jan 1, 2005

  • SME
    Investigations on the Charge Motion and Breakage Effect of the Magnetic Liner Mill Using DEM Mining, Metallurgy and Exploration (9cf37b4b-e4a2-4dea-af46-58cb4a935ca1)

    By Jue Kou, Lei Yu, Bern Klein, Lusheng Zhou, Chunbao Sun, Genzhuang Li, Reem Roufail, Amit Kumar

    Magnetic liners can improve the performance of ball mills by increasing grinding efficiency, extending service life, and reducing maintenance costs. Despite their importance, the fundamental understan

  • SME
    Investigations on the Charge Motion and Breakage Effect of the Magnetic Liner Mill Using DEM

    By Jue Kou, Lei Yu, Bern Klein, Lusheng Zhou, Chunbao Sun, Genzhuang Li, Reem Roufail, Amit Kumar

    Magnetic liners can improve the performance of ball mills by increasing grinding efficiency, extending service life, and reducing maintenance costs. Despite their importance, the fundamental understan

    Jun 12, 2019

  • SME
    Investigations on the Charge Motion and Breakage Effect of the Magnetic Liner Mill Using DEM Mining, Metallurgy and Exploration

    By Jue Kou, Lei Yu, Bern Klein, Lusheng Zhou, Chunbao Sun, Genzhuang Li, Reem Roufail, Amit Kumar

    Magnetic liners can improve the performance of ball mills by increasing grinding efficiency, extending service life, and reducing maintenance costs. Despite their importance, the fundamental understan

  • SME
    Building Human Resources Through Systematically Designed Instruction

    By R. E. Mclvor

    This is an update of an original dissertation on this topic by Lavallee, McIvor and Stolovitch (1992). A step-by-step, technical procedure used to measure and improve the performance of plant grinding

    Jan 1, 2008

  • SME
    Aquatic Life Criteria Are Protective Against Copper-Caused Impairment Of Olfaction In Salmonid Fishes

    By J. S. Meyer

    Although salmonid fishes (including Pacific salmon and trout) have only intermediate sensitivity to copper (Cu) for traditional toxicity endpoints (survival, growth, and reproduction) and thus do not

    Feb 27, 2013

  • SME
    Reducing Emissions Through The Use Of A Fuel Borne Combustion Catalyst

    By R. Curtis

    To achieve compliance with 2015 EPA Tier 4 Final regulations, which permit only around 10% of Tier 3 particulate matter (PM) and NOx emissions, a number of technologies are being implemented. Use of a

    Feb 27, 2013

  • SME
    The Design, Commissioning And Operation Of The Castle Valley Plant In Wellington, Ut

    By P. J. Bethell

    Background Increasingly complex geological conditions, with the presence of high ash binders in the mining horizon were encountered at the A.C. I. Dugout Mine near Price, Utah. This led to the prod

    Jan 1, 2008

  • SME
    A Visualization Technique to Predict Abnormal Channeling Phenomena in the Blast Furnace Operation Mining, Metallurgy and Exploration

    By Jia-Shyan Shiau, Chung-Ken Ho

    An uneven gas distribution through the burden layers inside a blast furnace (BF) results in abnormal gas resistance or pressure changes. Rapid variations in the abnormal gas resistance will lead to th