Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Improved Fire Doors For Noncoal Underground Mines
This citation summarizes a one-page announcement of technology available for utilization. There was a need to prevent the propagation of a fire and control the spread of smoke and toxic gas in underground mines. A fire door suitable for large openings in underground noncoal mines and providing protection for openings requiring 1 1/2 hours of fire resistance, a 250F maximum temperature rise, and high pressure differentials was designed, laboratory tested, and in-mine tested. The door is a double-acting swing type. Its two panels, connected by an overhead linkage, open in opposite directions. Consequently, high pressure differentials across the door have little effect on the force required to open and close the door. ...FOR ADDITIONAL INFORMATION: For construction drawings, a bill of materials, and additional information, contact the principal investigator for this research, William H. Pomroy, Bureau of Mines, Twin Cities Research Center, 5629 Minnehaha Ave. S., Minneapolis MN 55417; (612) 725-3469.
Improved Fire Doors For Noncoal Underground Mines
This citation summarizes a one-page announcement of technology available for utilization. There was a need to prevent the propagation of a fire and control the spread of smoke and toxic gas in underground mines. A fire door suitable for large openings in underground noncoal mines and providing protection for openings requiring 1 1/2 hours of fire resistance, a 250F maximum temperature rise, and high pressure differentials was designed, laboratory tested, and in-mine tested. The door is a double-acting swing type. Its two panels, connected by an overhead linkage, open in opposite directions. Consequently, high pressure differentials across the door have little effect on the force required to open and close the door. ...FOR ADDITIONAL INFORMATION: For construction drawings, a bill of materials, and additional information, contact the principal investigator for this research, William H. Pomroy, Bureau of Mines, Twin Cities Research Center, 5629 Minnehaha Ave. S., Minneapolis MN 55417; (612) 725-3469.
Improved Fire Doors For Noncoal Underground Mines
1984
1 pages
Report
Keine Angabe
Englisch
| NTIS | 1987
Fire and ventilation doors in metal mines
| Engineering Index Backfile | 1922