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Water Spray Vent Tube Cooler for Hot Stopes--a Preliminary Report.
Thimons-ED; Vinson-RP; Kissell-FN
NTIS: PB 295 764 :11 pages
As U.S. mines go to greater depths, the high temperature and humidities characteristic of such depths make it difficult to maintain a comfortable environment in working areas. Better techniques for cooling these deep working areas are needed. At the Homestake gold mine in South Dakota the Bureau of Mines has tested a water spray cooler inserted into the fresh air vent tube entering a warm stope. The cooler supplied more than 6 tons of refrigeration to the stope air, which dropped from an inlet temperature of 83 deg f dry bulb and 75 deg f wet bulb to 73.5 Deg f dry bulb and 71.5 Deg f wet bulb. These preliminary results show the water spray cooler to be a feasible concept. However, there is a need for substantial refinement and further testing, and work on the concept will be continued under contract to the Bureau.
NTIS Accession No.
NTIS: PB 295 764
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division