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Thixogelled Halon/dry Powder Fire Supressants.
Tarpley WB Jr.; Lemon LH; Tuno AL
NTIS: PB/82-245937 :46 pages
This program was conducted to demonstrate the unique advantages of suppressing methane ignition in underground mines by use of a thixogel fire extinguishing system, which stably suspends dry powder extinguishing agent in thixotropically gelled liquefied gas extinguishant. The project demonstrated thixogel system advantages of (1) the capability to disperse state-of-the-art powders in thixogelled halons, (2) a nonagglomerating stability for dependable expulsion, (3) stability in storage for long shelf life, (4) virtually instantaneous dispersion, (5) expansive cloud formation, (6) reach and reforming ground obstacles, (7) at least twice the extinguishant effectiveness, and (8) compatibility of use with fenwal bottles and MSHA canisters. The demonstration showed the thixogel system to be a superior explosion-fire suppressant for coal face cutters and triggered barriers as well as for motorized equipment, electrical equipment, etc.
CP; Final Contract Report;
NTIS Accession No.
Energy & Minerals Res. Company
Page last reviewed: November 12, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division