| ID (ISN) del documento | 108718 |
| Número CIS |
08-1159 |
| Año |
2008 |
| Número de serie |
DHHS (NIOSH) Publication No.2008-124
|
| Título |
Frictional ignition of methane-air in the presence of liquid hydrocarbons |
| Información bibliográfica |
Publications Dissemination, National Institute for Occupational Safety and Health (NIOSH), 4676 Columbia Parkway, Cincinnati, OH 45226-2001, USA, Mar. 2008. 2p. Illus. 2 ref. |
| Acceso Internet |
http://www.cdc.gov/niosh/mining/pubs/pdfs/2008-124.pdf [en inglés]
|
| Resumen |
Methane ignitions in underground coal mining are often caused by the impact of mining machine cutter bits on sandstone during the coal-cutting process. Most ignitions are small and limited to the cutter head location. However, under certain conditions, these ignitions can lead to larger methane explosions and/or fires with the potential for causing serious injury or death to the mining machine operator and other nearby miners. A series ignition tests were conducted in a test chamber, with various methane-air mixtures with and without the presence of liquid hydrocarbons on the sandstone. It was found that hydrocarbon vapours can ignite at significantly lower temperatures than the methane. Extra precautions to prevent fires and explosions must be taken when heavier molecular weight liquid hydrocarbons are present in addition to methane in an underground coal mine. |
| Descriptores (primarios) |
Estados Unidos; hidrocarburos; metano; mineria del carbón; explotación minera en el fondo; riesgos de explosión; factores de riesgo; riesgos de incendio |
| Descriptores (secundarios) |
técnicas de seguridad; sistemas de ventilación; pruebas de inflamabilidad; instituciones publicas de prevencion |
| Tipo de documento |
E - Libros, informes, actas |
| País / Estado o Provincia | Estados Unidos |
| Tema(s) |
Minas y canteras
Incendios, explosiones
|
| Broad subject area(s) |
Incendios, explosiones y riesgos mayores
|
| Navegación por categoria(s) |
Mining and quarrying
Explosions
Incendios
Aliphatic and alicyclic hydrocarbons
|
