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  • SME
    Emerging Conveyor Technologies

    By G. Bierie

    The conveying of bulk materials is prone to problems. These problems can reduce the capacity and efficiency of the plant, and even threaten the health and safety of the workforce. This presentation w

    Jan 1, 2007

  • SME
    Adding A Third Main Fan At The Waste Isolation Pilot Plant (SME Annual Meeting March 1-3, 1999, Denver, Colorado)

    By K. H. McDaniel, L. Griswold

    The Waste Isolation Pilot Plant (WIPP) is adding a third fan to operate in parallel with, and supplement, its two existing main fans. An engineering analysis conducted in 1995 identified the need for

    Jan 1, 1999

  • SME
    Theoretical background of the Crago phosphate flotation process

    By C. Guan

    Since it was patented in 1942, the Crago process with fatty acid rougher flotation followed by deoiling and amine cleaner flotation has become the standard for phosphate flotation in Florida and North

    Jan 1, 2009

  • SME
    Industrial Minerals 2002

    Editor’s note: As usual, the June issue features an industrial minerals review. And some thanks are in order. Thank you to the industrial minerals annual-review editor, to the technical committees

    Jan 1, 2003

  • SME
    Effects Of Surface Forces And Film Elasticity On Froth Stability

    Basic parameters affecting the stability of foams have been studied. We used the thin film pressure balance (TFPB) technique of Scheludko and Exerowa (1959) to measure the surface forces in foam films

    Jan 1, 2006

  • SME
    Horizontal Geotechnical Investigations for Tunneling

    By Nick Salisbury, Alan Howard, Scott Tunison

    INTRODUCTION Geotechnical investigations for tunneling projects typically use vertical test borings and, to a lesser extent, angled borings. Horizontal drilling applications were often limited to

    Jan 1, 2005

  • SME
    Excess Spoil Minimization And Fill Stability

    By M. Superfesky, P. Michael

    Introduction The US Office of Surface Mining (OSM) is proposing changes to the Code of Federal Regulations in the interest of minimizing the adverse effects of excess-spoil-fill construction on the

    Jan 1, 2007

  • SME
    Evaluating The Use Of Booster Fans In Two Underground Coal Mines (dad85aba-30c3-4dbb-bffb-81f370700600)

    By J. M. Wempen

    As development in underground coal mines progresses away from the critical components of the ventilation system, including the main fans and ventilation shafts, resistance is markedly increased. This

    Jan 1, 2011

  • SME
    Mycobacterium Phlei As A Flotation Collector For Hematite

    By R. W. Smith, A. M. Raichur, M. Misra

    Mycobacterium phlei has very good potential as a hematite flotation collector. The flotation recovery of hematite is dependent upon the solution pH and concentration of the microorganism. The critical

    Jan 1, 1994

  • SME
    Reclamation And Remediation Of The Abandoned Belle Eldridge Mine Near Deadwood, South Dakota

    By A. D. Davis, C. J. Webb, C. S. Johnson, J. L. Porter

    The abandoned Belle Eldridge Mine near Deadwood, South Dakota, is on land controlled by the U.S. Bureau of Land Management (BLM) property. The mine produced primarily lead and zinc during the first h

    Jan 1, 2002

  • SME
    Copper prices : History not necessarily precursor to future

    By Simon D. Strauss

    This article is part of a presentation Strauss made Dec. 3, 1988 at the sixth annual American Mining Hall of Fame (AMHofF) banquet in Tucson, AZ. At the banquet, the Mining Club of the Southwest honor

    Jan 1, 1989

  • SME
    Guadarrama Tunnel Construction with Double Shield TBMs

    By F. Mendaña

    The characteristics of the igneous and metamorphic bedrock, extra-hard and abrasive, of the Guadarrama Tunnels, a bi-tube project of length 28.4 km without any intermediate attack, are first commented

    Jan 1, 2007

  • SME
    Sandvik’s Tamboree 2005 Emphasizes Automated Mining Equipment

    By Steve Kral

    Most innovations in the mining and processing industries have come from the need to produce more for less. Extracting minerals from the ground is expensive. And it is a constant struggle for mine op

    Jan 1, 2005

  • SME
    TECHNOLOGY NEWS – Tackling India’s Coal Ash Problem

    By Gary Brendel

    India produces about 70 Mt/a (77million stpy) of coal ash (fly ash and bottom ash) from burning about 200 Mt/a (220 million stpy) of coal for electric power generation. The average ash content is 35%.

    Jan 1, 1999

  • SME
    GIS and Bauxite Mining in Jamaica

    By Jim Baumann

    Deposited millions of years ago in irregular paleokarstic channels, Jamaica’s extensive bauxite deposits provide good quality ore for alumina production and subsequent aluminum smelting. Bauxite minin

    Jan 1, 2002

  • SME
    Methods For Removing Arsenic From Aqueous Systems

    By L. R. Moore

    Arsenic is among the list of major contaminants in mining aqueous waste streams. Though the elemental form is toxic, the aqueous oxyanions are more so. The most common forms of arsenic released duri

    Jan 1, 2012

  • SME
    A Global Perspective Of Cyanide

    By M. M. Botz

    There are currently more that 460 mines worldwide that utilize cyanide for gold and silver extraction. Despite this large number of cyanide-related mining operations, there have been no published acc

    Jan 1, 2001

  • SME
    Leica Dozer 2000 At The San Miguel Lignite Mine: The Uses Of GPS Grade Control In Surface Mining

    By M. Heger

    February 2, 1999 marks a milestone in earth-moving technology at the San Miguel Lignite Mine. It was on that date that The North American Coal Corporation (NAC) took delivery of three Leica Dozer 200

    Jan 1, 2002

  • SME
    Safety Vs. Productivity And Other Factors In U.S. Underground Coal Mines

    By R. L. Grayson

    Focusing on relationships between severity measure versus productivity and other factors, this paper presents a comprehensive study of injuries for U.S. underground coal mines in 1996 by mine size. Ba

    Jan 1, 2000

  • SME
    Anchorage Performance In Rock Bolting ? Introduction

    By R. Stefanko

    Rock bolting as a method of support continues to increase with applications in many other industries in addition to mining. Nevertheless, with nearly 55,000,000 roof bolts installed in coal mines alon

    Jan 1, 1969