Coal Dust Explosion Fault Tree Analysis
As shown in the attached diagram, a coal dust explosion fault tree analysis (FTA) diagram is a top-down deductive failure analysis in which an undesired state of a system is analyzed using Boolean logic to combine a series of lower-level events. Fine bituminous coal dust is highly explosive when suspended in the air. In a typical coal dust explosion, as shown in the fault tree analysis diagram, the dust is scoured by a small methane gas explosion, which also provides the initiating flame. Once started, a coal dust explosion can propagate through vast areas of the mine by swirling new coal dust into the air in front of the explosion flame. The fault tree analysis is of high significance in the analysis of accidental coal mine explosions and provides theoretical guidance for improving the efficiency of coal mine safety management in a feasible manner.
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