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Ventilating large opening mines.

Authors
Grau-RH III; Krog-R
Source
J Mine Vent Soc S Afr 2009 Jan; 62(1):8-14
NIOSHTIC No.
20035773
Abstract
The National Institute for Occupational Safety and Health (NIOSH) has conducted research to improve the ventilation of large-opening mines whose entries are at least 93m2 (1,000 ft2). The ventilation of large-opening mines is unique compared to other types of mines because (1) it is challenging to keep airflow velocities high enough to effectively remove or dilute airborne contaminants because the entries are so large, (2) large air volumes can be moved through the mines with little static pressure drop, and (3) stoppings that are used to direct ventilation airflows are costly to construct and to maintain. The research results suggest that the ventilation of large-opening mines is improved significantly by incorporating ventilation planning into the mine planning process, using propeller fans to direct airflow, developing new stopping materials and construction methods, and using long pillars to eliminate crosscuts where possible.
Keywords
Mining-industry; Underground-mining; Ventilation; Ventilation-systems; Metal-mining; Nonmetal-mining; Room-and-pillar-mining; Exhaust-gases; Diesel-emissions; Diesel-exhausts; Engineering-controls; Control-technology
CODEN
JMVSA4
CAS No.
7440-44-0
Publication Date
20090101
Document Type
Journal Article
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Issue of Publication
1
ISSN
0368-3206
NIOSH Division
PRL
Source Name
Journal of the Mine Ventilation Society of South Africa
State
PA
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