Mine face ventilation system
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United States of America Patent
Stats
-
Nov 25, 1980
Grant Date -
N/A
app pub date -
Jul 6, 1979
filing date -
Jul 6, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mine face ventilating method and apparatus are disclosed which serve to supply fresh air from a ventilated crosscut. A duct system containing a blower draws air from the crosscut and expels a jet of air out of a duct in the tunnel. Arcuately shaped troughs located at the end of the duct in the tunnel channel the air to the face of the tunnel. The troughs define an arc of between about 90.degree. and 180.degree. and provide substantially improved air 'throw' as compared with conventional tubular ventilation piping.
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Family
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Cited Art Landscape
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