Unique mine-ventilation system
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Article
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1953
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Elsevier Science
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English
β 71 KB
towering 20-ton exhaust fan, shaped like a huge malted milk container, has been installed by The International Nickel Company of Canada, Limited, to ventilate the underground workings of the new caving project at its Creighton Mine in the Sudbury District of Ontario. The giant vertical fan, driven