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Mine face ignition quenching.
Coal mine fire and explosion prevention. Proceedings: Bureau of Mines technology transfer seminars, Pittsburgh, Pennsylvania, March 2, 1978 and Denver, Colorado, March 14, 1978. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 8768, 1978 Jan; :3-14
The incidence of frictional spark ignition at the mine face has increased significantly with the advent of the continuous-mining machine. To cope with this problem, the Bureau of Mines initiated research in the early sixties to develop an ignition-quenching device. This paper summarizes the initial in-house and subsequent contract research in which dry powder extinguishing agents were used and the Bureau's recently completed work in which a vaporizable agent (Halon 1301) and hybrid mixtures of Halon 1301 and Purple-K or water were studied. Hybrid mixtures are shown to be the most effective agents. Design requirements are given for an ignition-quenching device proposed for the tunnel-boring machine application.
Coal mines; Mine fires; Fire prevention; Fire protection systems; Fire safety
IH; Conference/Symposia Proceedings
Coal mine fire and explosion prevention. Proceedings: Bureau of Mines technology transfer seminars, Pittsburgh, Pennsylvania, March 2, 1978 and Denver, Colorado, March 14, 1978
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division