Mining Workshop: Preventing Coal Dust Explosions in Underground Coal Mines
Pittsburgh, PA: January 24, 2012
There has been progress in area of explosion prevention. However, changing mining conditions and the fact that coal dust explosions still occur require periodic assessments of current practices. The new 80% incombustible content (IC) standard and the recent commercialization of the Coal Dust Explosibility Meter (CDEM), offer the opportunity for further reductions in the probability of a dust explosion.
This workshop describes the use of the CDEM as a powerful tool to help prevent coal dust explosions. It covers the science of explosion prevention and current practices and presents a brief summary of NIOSH research on the topic.
Videos of presentations made by NIOSH researchers are available for viewing below. In addition, you may request a DVD containing all the workshop presentations by NIOSH researchers by sending an email to OMSHR@cdc.gov.
Problem Definition - Prevention of Coal Dust Explosions
Gerrit Goodman, Ph.D., Acting Branch Chief Fires and Explosions
- Explosion risk due to presence of un-neutralized coal dust
- Application of research results to development of rock dust inerting criteria
- Impact of coal dust particle size on flame propagation and inerting limits
- Impact of percent incombustible content (IC) on explosibility and development of the new 80% IC standard
Use of the Coal Dust Explosibility Meter (CDEM) to Verify Rock Dust Percentage
Marcia Harris, Chemical Engineer
- Discussion on use of CDEM to improve mine safety
Update On Current Research and Wrap-up
Dan Alexander, Ph.D., P.E.
- Coal Dust and Methane
- Coal Dust Explosibility Meter Evaluation and Recommendations for Application
- Field Evaluation of the Coal Dust Explosibility Meter
- How Does Limestone Rock Dust Prevent Coal Dust Explosions in Coal Mines?
- How to use the Coal Dust Explosibility Meter
- Particle Size and Surface Area Effects on Explosibility Using a 20-L Chamber
- Rock Dusting
- Rock Dusting Considerations in Underground Coal Mines
- Technical Development of the Coal Dust Explosibility Meter
- Technology for Real-Time Monitoring of Coal Dust Explosion Hazards