Fuzzy Structured Element Integrated Decision of Metamorphism on Coal Dust Ignition Hazard Rating

Abstract To discuss the coal dust ignition hazard rating of different metamorphism, fuzzy structure element integrated decision model about “no danger”, “weak “general and “strong danger” is established. 40 kinds samples are selected to carry out quality analysis test, overpressure temperature flame propagation properties test particle size distribution test. Based on this, decision-making index system built. The triangular added comprehensive model, by sequencing weighted Hamming distance between value function maximal function, can be decided. result shows that: with increasing metamorphic grade, decreasing, which provides study basis for relation metamorphism rating.