Fire Hazard Evaluations of Mine Materials in a Small-Scale Combustibility Apparatus

摘要

Combustibility data are presented for 14 samples representing commonly used mine materials (treated and untreated wood, conveyor belt, and brattice cloth). The hazards associated with the mine materials were evaluated in terms of (1) ignition and surface flame spread using an ignition parameter (IP). A reasonable correlation was found between IP values and Bureau of Mines ratings for conveyor belts and brattice cloth and large-scale fire test data for treated and untreated timber sets; (2) generation of combustible vapors, using a vapor generation parameter (VP); (3) heat release using a heat generation parameter (HP). A reasonable correlation was found between HP values and the large-scale fire test data for treated and untreated timber sets; (4) generation of smoke, toxic, and corrosive products using a chemical compound generation parameter (CP); and (5) light obscuration by smoke using the light obscuration parameter (LP). All the wood treatments except Fireguard effectively reduced the fire hazard.