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Results 11 - 20 of 24
6/1/2010 - Conference papersThis study's goal was to validate the use of Ventgraph in a deep M/NM mine fire and illustrate its use as a valuable tool in mine ventilation, fire, and evacuation planning.
2/1/2009 - Conference papersThis paper describes an inflatable temporary mine sealing technology and presents the results of NIOSH tests on the device.
6/1/2008 - Conference papersThis paper summarizes the modeling efforts conducted by NIOSH in the U.S. and CSIRO in Australia to address various gas management issues encountered in longwall mines using the application of computational fluid dynamics (CFD) and numerical reservoir m...
The Effects of Ventilation Controls and Environmental Cabs on Diesel Particulate Matter Concentrations in Some Limestone Mines6/1/2008 - Conference papersIn this investigative study NIOSH measured for sub-micrometer elemental carbon (EC) using two types of control technologies (ventilation and cabs) which are being implemented in limestone mines.
A cooperative research effort was established to lower respirable dust levels in an iron ore grinding and concentrator plant. The most significant improvement was realized by changing the ventilation profile throughout the entire facility. Another succe...
A new protocol based on rigid arch loading of the structure is proposed to determine the true transverse load capacity of block stoppings. Tests show that load capability depends on the block's physical properties and the wall's geometric properties.
This paper focuses on the flow patterns within the gob under three different ventilation systems: one-entry and two-entry bleederless systems, as well as a three-entry bleeder system.
Technology News 518 - Super Stopping: A Permanent Solid Stopping for Directing Ventilation Airflows in Large-opening Metal/Nonmetal Mines5/1/2006 - Technology NewsThe Super Stopping is a permanent, long-term ventilation control for large-opening metal/nonmetal mines designed to last for the life of the mine. This report discusses construction of a Super Stopping, as well as successful testing of the stopping at 3...
12/1/2005 - Theses/DissertationsA new protocol based on arching has been developed to determine the true transverse load capacity of stoppings.
Using Ventilation Control Technology to Reduce Respirable Dust Exposures at U.S. Metal/Nonmetal Mining Operations7/1/2005 - Conference papersThis manuscript will discuss five different research studies conducted by the National Institute for Occupational Safety and Health (NIOSH) which use ventilation in some application to lower workers' respirable dust exposures at surface and metal/nonmet...