Radiation in uranium mines

Cette publication n'est pas offerte dans votre langue; certains de ses renseignements ont été préremplis pour la version française.
Accés complet à Document technique
Version PDF pour 20,00 $
Recherche
Trier par :  Pertinence
Affichage des résultats 1 - 10
Texte
Publication: CIM Bulletin
Auteur(s): ROBERT B. PARSONS, Partner Price Waterhouse, Toronto
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: This paper describes: how Falconbridge's fire protection system meets the needs of the Lockerby Mine; why the system was chosen over other alternatives; how it is unique, but can be applied to any underground situtation; details of the system; how it was installed; the role of a fire protection company; and general considerations when choosing a fire-suppresant system.
Publication: CIM Bulletin
Auteur(s): LORNE ROBERTS
Mots clés: Fire protection, Fire suppression, Underground mining, Safety, Foam, Sprinklers.
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: A general review of the wear problems encountered in the mining industry is presented and current practice for wear protection systems is reviewed.A new concept in wear protection is described and compared to alternative systems. Utilization of conventional stud welding technology and abrasion-resistant wear studs is shown to be a useful supplement or substitution for conventional techniques. Operating life of many consumable components can be increased by up to four fold. The technique is...
Publication: CIM Bulletin
Auteur(s): R.C. COOK, V. SILINS, J. TAMELING
Mots clés: Metallurgy, Wear protection, Abrasion resistance, Welding, Steel, Hardness.
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: In 1957, the Department of Mines and Technical Surveys (now Energy, Mines and Resources Canada) issued their first certificate for a fire-resistant conveyor belt. The testing procedure used was a combination of those used in the U.S.A. and the U.K. Subsequently, certification was granted to fire-resistant electric cables (1974), fire-resistant mine duct material (1976) and fire-resistant hydraulic fluids (1978).Until recently, the testing procedures were copied from either the U.S. or the...
Publication: CIM Bulletin
Auteur(s): J.A. BOSSERT
Mots clés: Fire protection, Testing, Certification, Safety, Standards, Underground mining, Conveyor belts, Hydraulic fluids, Cables.
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: Sidbec-Normines Inc. est une societe formee de trois partenaires soient: Sidbec, British Steel Corporation et la Compagnie Miniere Quebec Cartier. L'objectif de I'operation miniere est d'exploiter a del ouvert le gisement d'hematite speculaire de Fire Lake et de produire au concentrateur de Lac-Jeannine, pres de la ville de Gagnon, 6 million de tonnes de concentre pour alimenter I'usine de bouletage de Port-Cartier.Le present expose a pour but de faire ressortier les caracteristiques d'une...
Publication: CIM Bulletin
Auteur(s): MARCEL ALLARD
Mots clés: Operations a ciel ouvert, Fire Lake, Lac-Jeannine, Sidbec-Normines, Quebec Cartier, Hematite, Immobiliations, Transport, Main-d'oeuvre.
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: The province's lignite resources lie mainly in the south, extensions of the much larger deposits in Montana and North Dakota. Because of planned additional capacity, conventional steam power generation will probably remain as the dominant resource usage for many decades. Conversion of coal to other energy forms is receiving emphasis and in the future will compete with steam power generation in terms of quantities used.Economic deposits, minable by present-day technology, have been generally...
Publication: CIM Bulletin
Auteur(s): T. ADAMCEWICZ
Mots clés: Coal, Saskatchewan, Lignite, Power generation, Energy, Reclamation, Environment, Synfuels.
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: The processing of uranium ores produces tailings that could constitute environmental problems. At most operations the tailings are dumped into a designated area, with the ultimate acid drainage occurring if sulphides are present, together with the release of metal constituents to the rivers and streams. If the chemical reactions occurring within the tailings could be predicted, perhaps methods could be developed to either increase or decrease the rates of reaction. One such study has been in...
Publication: CIM Bulletin
Auteur(s): G.M. RITCEY, M. SILVER
Mots clés: Mineral processing, Lysimeters, Tailings, Uranium tailings, Environmental control, Elliot Lake, Rabbit Lake, Midwest Lake, Key Lake, Radionuclides.
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: Cretaceous sands and clays underlie an area of approximately 5,000 km2 in Northern Ontario, southwest of James Bay. The deltaic deposits occur as a wedge of continental sediments to the north of an east-trending fault scarp referred to as the Precambrian Escarpment. They rest on older sedimentary formations of the Moose River Basin (Jurassic, Devonian) and are covered by glacial tills and marine sediments of the Quaternary period. Outcrops are restricted to occasional exposure in the deeply...
Publication: CIM Bulletin
Auteur(s): M.A. VOS
Mots clés: Industrial minerals, James Bay Lowland, Sand, Quartz sand, Clay, Kaolinite clay, Moose River Basin, Mattagami Formation, Ceramic tests, Cretaceous deposits.
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: The Sturgeon Lake deposit, a partly eroded lens of massive sulphides with an underlying sulphide stringer zone, is one of five orebodies that occur in the Sturgeon Lake area of northwestern Ontario within volcaniclastic rocks of the Archean Wabigoon Subprovince in the Superior Province of the Canadian Shield.The Sturgeon Lake Cu-Zn-Pb-Ag-Au deposit was discovered in October 1970 as a result of an I. P. survey. Production from this open-pit mine began in March 1974 and continued until the ore...
Publication: CIM Bulletin
Auteur(s): P.W.A. SEVERIN
Mots clés: Geology, Economic geology, Sturgeon Lake deposit, Bell Lake mafics, Beidelman Bay Complex, Massive sulphides, Sulphide deposits, Copper, Zinc.
Numéro: 846
Volume: 75
Année: 1982
Texte
Sommaire: Evaporites abound in the Western Canada sedimentary basin, recurring throughout the stratigraphic column and widely scattered over the basin region. Alberta, situated centrally over the basin, includes many of the evaporites within its borders, but only a few have the right geological conditions to form potential economic deposits of salt or gypsum. These include the Middle Devonian Elk Point Group and related evaporites, Upper Devonian Wabamun Group—Palliser Formation evaporites, and...
Publication: CIM Bulletin
Auteur(s): W.N. HAMILTON
Mots clés: Industrial minerals, Alberta, Salt, Gypsum, Evaporites, Elk Point Group, Fort Vermilion Formation, Burnais Formation, Wabamun Group, Palliser Formation, Charlie Lake Formation, Whitehorse Formation, Lotsberg Salt, Cold Lake Salt, Prairie Evaporite Salt, Stettler Salt, Kananaskis Gypsum, Salt River Gypsum, Fort McMurray Gypsum, Peace Point Gypsum, Head Creek Gypsum, Featherstonehaugh Creek Gypsum, Mowitch Creek Gypsum.
Numéro: 846
Volume: 75
Année: 1982
Activé par Coveo Enterprise Search