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  • SME
    Extension of the main ventilation system at LKABs Kiruna Mine for the new main haulage level 1365 m

    By L. Mukka

    The existing main mine ventilation system for the production areas to the Kiruna mine was constructed during the period 1994-1996 and extended with 4 more shafts, including fan stations, for the sea o

    Jan 1, 2009

  • SME
    Daylighting Thorn Creek Tunnel Into Chicago?s Tarp Thornton Composite Reservoir

    By Cary Hirner

    The Metropolitan Water Reclamation District of Greater Chicago (District) is in the final phase of completing the Calumet System component of the Tunnel and Reservoir Plan (TARP) by bringing the Thorn

  • SME
    Construction of Portals for Adits at Stillwater Mining Company’s East Boulder Project

    By Hendrick A. D. Kirsten, A. Clayr Alexander

    Stillwater Mining Company is currently developing a second underground palladium and platinum mine approximately 21 km (13 miles) west of their existing Nye operation in the Bear tooth Mountains of so

    Jan 1, 2001

  • SME
    The Future Of Dicalcium Phosphate

    By F. Habashi

    The phosphate fertilizer industry is at present based mainly on the use of sulfuric acid. This technology results in the generation of large amounts of radioactive gypsum that represents disposal and

    Jan 1, 2011

  • SME
    Sodium Sulfate – 5,000 Years of Mining and Processing Salt Cake

    By Donald E. Garrett

    Sodium sulfate is one of the larger tonnage industrial minerals. A little more than half of this tonnage — 3 Mt/a (3.3 million stpy) of natural product— is recovered from ore deposits. Most of the r

    Jan 1, 2002

  • SME
    A Study Of Coal Spontaneous Combustion Propensity Based On Kinetic And Coal Quality Parameters Using A TGA Setup

    The propensity of coal spontaneous combustion can be evaluated using various laboratory testing methods such as R70 adiabatic tests, thermal gravimetric analyzer (TGA) and critical self-heating temper

    Jan 1, 2012

  • SME
    Automatic Hydraulic Takeups For Belt Conveyors

    By Donald D. Murphy

    My first contact with underground, bolt conveyors came when I was hired as a draftsman by the La-Del Conveyor & Manufacturing Company in 1935. At that tine relatively few nines were using haulage belt

    Jan 1, 1963

  • SME
    Members Ready for Mining Industry Upswing at SME’s Annual Meeting

    By Steve Kral

    It seems that mining has been in the doldrums for awhile. Except for gold, metals prices remain depressed. And economic conditions in the United States and around the globe have put governments in a

    Jan 1, 2003

  • SME
    Longwall Coal Mining Under S.M.C.R.A. 1977 The Ohio Experience

    By Robert J. Rothwell

    Underground mining of coal by longwall mining methods has not been a predominant technique in Ohio. To date, only five mines in the state utilize this method, however, the technique has sparked a cert

    Jan 1, 1986

  • SME
    Proposed Contracting Practices For The Caltrain Downtown Extension

    By Derek J. Penrice

    The Caltrain Downtown Extension (DTX) project will extend commuter and future statewide high-speed rail service into the Transbay Transit Center, which will be located in the business district in down

  • SME
    Semi-Autogenous Grinding (SAG) Mill Liner Design And Development

    By D. Royston

    SAG mill liner development draws primarily on practical experience from SAG milling operations supported by computer-based modeling of charge motion in SAG mills and on established good design practic

    Jan 1, 2007

  • SME
    Solving Industrial Mineral Flotation Problems At The Mines Branch, Ottawa, Canada

    By R. A. Wyman

    "The froth flotation process was patented by E.L. Sulman, H.F.K. Pickard, and John Ballot in 1906 . . . . . . . . . .James M. Hyde installed the first froth flotation process in the U.S., about August

    Jan 1, 1971

  • SME
    Newmont Cuts Costs and Increases Reserves at Carlin

    By Bruce D. Hansen

    For many years, Newmont has focused on improving its operations. After the merger between Newmont and Santa Fe Pacific Gold, Newmont created synergies of more than $50 million a year in Nevada. This

    Jan 1, 1999

  • SME
    Technology News - More P&H Shovels Operate in Canadian Oil Sands

    P&H MinePro Services Canada is supplying Syncrude Canada three more of its model4100BOSS electric mining shovels. The shovels will be delivered during 2003. Syncrude’s oil sands operations already u

    Jan 1, 2003

  • SME
    Ironmaking Industry Trends and Directions

    By Robert E. Mazurak

    Mines and plants for sale, downsizing, bankruptcies, consolidation, slab imports, minimill growth displacing traditional integrated steel-making. These are some issues for North American iron ore and

    Jan 1, 2003

  • SME
    Key Components For An Effective Filtration And Pressurization System To Reduce Respirable Dust In Enclosed Cabs For The Mining Industry

    By A. B. Cecala

    Enclosed cabs have been used for many years to isolate workers on mobile equipment in the mining industry for health and safety reasons. These enclosed cabs create a microenvironment for workers where

    Feb 27, 2013

  • SME
    Dewatering Of Fines By Rotary Vacuum Disc Filters

    By S. C. Langvik

    The presentation named 'Dewatering of fines by Rotary Vacuum Disc Filters' has an opening why the filtration process is important to the Iron Ore Industry. It goes on to describe the variou

    Jan 1, 2001

  • SME
    Kinetics, of Microbiological Production of Ferric Ion for Heap and Dump Leaching

    By Jai Ghosh, Aprad E. Torma, Roger Guay

    The catalytic effect of ferrous ion in the industrial biohydrometallurgical heap and dump leaching processes is explained. During the bacterial leaching of metal sulfides, ferric ion will partly be hy

    Jan 1, 1989

  • SME
    Rapid Excavation Using Trackless Technique

    By S. P. Lewis, R. L. Sundeen

    Most of us are aware of the ever increasing use of underground space. At the Advisory Conference on tunneling in Washington, D. C. in June of 1970, the demand for construction oriented tunneling durin

    Jan 1, 1974

  • SME
    Laboratory And Field Evaluation Of Dust Collector Bags For Reducing Dust Exposure Of Roof Bolter Operators (77cf6e87-f7a5-4d47-85c2-324b471775be)

    The National Institute for Occupational Safety and Health conducted laboratory and field tests to evaluate the effectiveness of dust collector bags for reducing dust liberation and operator exposure f

    Jan 1, 2008