Humphrey's Spiral Tolerance To Feed Variations

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Mots clés : Metallurgy;Mineral Processing;Humphreys spirals;Feed variations;Iron Ore
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Publication: CIM Bulletin
Auteur(s): Erwin L. Zodrow, K. McCandlish
Numéro: 796
Volume: 71
Année: 1978
Texte
Sommaire: This paper begins with a short history of air compressors, emphasizing their ""roots"" in the mining industry. It then describes the types of compressors available, including reciprocal, the various rotary positive-displacement compressors, and the centrifugal.
The advantages and disadvantages of selecting a certain type of compressor over another are enumerated, considering customer requirements and operating costs, among other factors. Guidelines to operation and maintenance are discussed,...
Publication: CIM Bulletin
Auteur(s): George H. Bodfish
Mots clés: Mechanical-electrical, Compressors, Air compressors, Ingersoll-Rand, Reciprocating compressors, Rotary compressors, Centrifugal compressors.
Numéro: 796
Volume: 71
Année: 1978
Texte
Sommaire: Ion exchange using resins is one of the few processes capable of reducing ionic contaminants in effluents to very low levels. Continuous fluidized-bed ion exchange is an advantageous technique for processing dirty effluents and thin slurries. It also reduces resin inventory and equipment cost compared to fixed packed beds. A simple continuous fluidized-bed unit has been investigated for treating effluents and its performance is described.
Breakthrough curves were first obtained from static...
Publication: CIM Bulletin
Auteur(s): M. J. Slater, B. H. Lucas, G. M. Ritcey
Mots clés: Hydrometallurgy, Ion exchange, Environmental control, Waste water, Resins, Fluidized beds, Mixing cells, Extraction columns, Effluents.
Numéro: 796
Volume: 71
Année: 1978
Texte
Sommaire: The heat pipe is a self-contained, passive structure that uses a liquid-vapour fluid cycle to provide high thermal conductance. Through the proper selection of working fluids and container materials, heat pipes have been operated at temperatures ranging from less than —300°F to more than 3,000°F. The passive nature, high efficiency and configuration flexibility of the heat pipe are presented. The application of McDonnell Douglas Astronautics Company Cryo-Anchor® heat pipes...
Publication: CIM Bulletin
Auteur(s): M. L. Joy
Mots clés: Mechanical-electrical, Heat pipes, Thermal conductance, Cryo-Anchor®, Foundation work, Support stabilization, Permafrost, Mine ventilation.
Numéro: 796
Volume: 71
Année: 1978
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