The Development of Modern Air Compressors and Trends in the Future

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Mots clés : Mechanical-electrical;Compressors;Air compressors;Ingersoll-Rand;Reciprocating compressors;Rotary compressors
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Publication: CIM Bulletin
Auteur(s): Erwin L. Zodrow, K. McCandlish
Numéro: 796
Volume: 71
Année: 1978
Texte
Sommaire: "The Humphrey's spiral is a static gravity separation device which cannot be adjusted to match short-term variations that occur in the feed. Any disturbance in the feed grade, per cent solids or flow rate affects substantially the recovery and grade of concentrate. Such variations must be minimized in order to maintain the desired rate of production and quality of the product for which the installation has been designed.
A study has been performed in which the foregoing assertions were...
Publication: CIM Bulletin
Auteur(s): Raymond Dallaire, Andre Laplante, Jorgen Elbrond
Mots clés: Metallurgy, Mineral processing, Humphreys spirals, Feed variations, Iron ore, Carol Lake.
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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