Mining Publication: Raising the Bar of Ventilation for Large-Opening Stone Mines
Original creation date: May 2004
Due to the difficulties of ventilating large-opening stone mines, the effective dilution of diesel particulate matter and noxious gases has often been problematic. Because stone mines have large openings that develop low air resistances and propeller fans are designed for low-pressure/high-volume applications, main mine propeller fans may be a feasible option for ventilating underground stone mines. This paper describes the results of a case study in which researchers from the National Institute for Occupational Safety and Health demonstrated that significant increases in total mine airflow can be achieved and the ventilation improved in a large-opening stone mine by replacing an axial-vane mine fan with two 12-ft-diam propeller fans and adding a line of stoppings. The propeller fans more than doubled the air quantity from 300,000 to 750,000 cfm while operating at 50 hp less than the original axial-vane fan.
Authors: RH Grau, SB Robertson, RB Krog, GJ Chekan, TP Mucho
Conference Paper - May 2004
NIOSHTIC2 Number: 20024924
Ganguli R, Bandopadhyay S, eds. Mine Ventilation: Proc 10th U.S./North American Mine Ventilation Symposium (Anchorage, Alaska, May 16-19 2004). Leiden, Netherlands: A. A. Balkema, 2004 May; :349-355
See Also
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- Laboratory Testing To Quantify Dust Entrainment During Shield Advance
- Measurement of Airflow in a Simulated Underground Mine Environment Using an Ultrasonic Anemometer
- Novel Stopping Designs for Large-Opening Metal/Nonmetal Mines
- Sonic Anemometer Airflow Monitoring Technique for Use in Underground Mines
- Technological Aspects of Solid-State and Incandescent Sources for Miner Cap Lamps
- Technology News 485 - Improved Cab Air Inlet Location Reduces Dust Levels and Air Filter Loading Rates
- Technology News 499 - Using Propeller Fans to Improve Ventilation in Large-Entry Stone Mines
- Tracer Gas as an Aid in Mine Ventilation Analysis
- Page last reviewed: 9/21/2012
- Page last updated: 9/21/2012
- Content source: National Institute for Occupational Safety and Health, Mining Program