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Mining Publication: Coal Mine Inertisation By Remote Application
Keywords: Inerting gases Spontaneous combustion
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: June 2005
Authors: TP Mucho, IR Houlison, AC Smith, MA Trevits
Conference Paper - June 2005
Download PDF Document (0.92 MB)
NIOSHTIC2 Number: 20030570
Proceedings of the National Coal Show, Pittsburgh, Pennsylvania, June 7-9, 2005. Denver, CO: Mining Media, Inc., 2005 Jun; :1-14
Timely and rapid intervention to underground combustion events (fires, explosions, and spontaneous combustion) is the key to successfully controlling the mine atmosphere and restoring a coal mine to production. The focus of this paper is the use of a GAG 3A jet engine system to either combat large out-of-control fires or render an entire mine inert when access to problem areas is difficult or impossible. This system is based on a Soviet-designed agricultural jet engine that consumes aviation fuel with oxygen from the intake air and exhausts combustion gases, mainly carbon dioxide and water, along with the nitrogen from the air and small amounts of carbon monoxide and hydrogen. The system is designed to approach stoichiometric combustion (ideally, pure burning that scavenges all the oxygen from the intake air). Therefore, these exhaust gases are almost entirely inert gases, i.e., gases that do not contribute to, and in fact, can suppress the combustion process due to the lack of oxygen. Other methods to inert mine areas have been used in the United States and abroad, but these methods usually use low-flow inertization equipment or methods. Use of these low-flow inertization equipment and methods has been successful in proactively rendering gob areas inert and has the ability to inert the entire mine workings. Due to the low flow rate, however, a substantial period of time is required. Two events where the GAG-3A system was used in the United States are reviewed.
Image of publication Coal Mine Inertisation By Remote ApplicationConference Paper - June 2005
Download PDF Document (0.92 MB)
NIOSHTIC2 Number: 20030570
Proceedings of the National Coal Show, Pittsburgh, Pennsylvania, June 7-9, 2005. Denver, CO: Mining Media, Inc., 2005 Jun; :1-14
See Also
Bleederless Ventilation Systems as a Spontaneous Combustion Control Measure in U.S. Coal Mines
CFD Modeling of Spontaneous Heating in a Large-Scale Coal Chamber
Computational Fluid Dynamics Modeling of Spontaneous Heating in Longwall Gob Areas
Control and Monitoring of Gas in Blind Auger Headings
Effect of Longwall Face Advance on Spontaneous Heating in Longwall Gob Areas
Effectiveness of Various Concentrations of an Inert Gas Mixture for Preventing and Suppressing Mining Equipment Cab Fires: Development of a Dual-Cab Fire Inerting System
Safe and Economical Inerting of Sealed Mine Areas
SPONCOM - A Computer Program for the Prediction of the Spontaneous Combustion Potential of an Underground Coal Mine
SponCom - Spontaneous Combustion Assessment Software - 2.0
Technology News 545 - NIOSH Updates Spontaneous Combustion Assessment Software
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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