Evaluation Research For Safety Performance Of Coal Gas Drainage System

Mine gas extraction system as an important part of the mine system for maintaining themine production safety is playing an important role，whether mine gas extraction system isgood or not，to reduce gas accident have very important function，therefore，evaluation ofmine gas extraction system security has the important practical significance.This subject combines with the actual production of coal mine and analyzes the multiplefactors of the mine gas extraction system performance,this thesis determines the safetyevaluation content and choices appraisal method to establish the mine gas extraction systemperformance evaluation index system and evaluation model, for mining enterprises toeliminate the mine gas extraction system and strengthen the security hidden danger gasextraction management provides the basis, but also for safety supervision managementdepartment knows safety situation of Coal mining enterprises of mine gas extraction systemand Implements macro control to provide the reference.Firstly,This thesis researches and analyses the system of evaluation methods, on thebasis of studying and summary, which is Combined with the characteristic of the mine gasextraction system evaluation and determines the evaluation method of evaluation indexsystem and Building method of the Evaluation mathematical model. Secondly, this paperestablishes a evaluation system for reliability of gas drainage system, Using AHP is calculatedfor the index weight and passed the index consistency inspection; Using the method ofanalytic hierarchy of comprehensive evaluation establishes its evaluation model, Thirdly, thisthesis discusses in detail to the fuzzy comprehensive evaluation of the safety evaluation of themine gas extraction system and establishes the fuzzy comprehensive evaluation system, Usingcomprehensive evaluation method Using comprehensive evaluation method evaluates the gasextraction system of the waters head mine.according to result of the comprehensiveevaluation,judging mine gas drainage system whether meets the requirements of production safety, and find the weak links for the need of rectification,in order to Ensuring the safetyproduction.