Application And Study On The Extension Comprehensive Evaluation Method Of The Mine Ventilation System

As one of important production system, Mine ventilation system plays an extremely important role on maintaining mine safety production. Reasonable evaluating ventilation system to mine ventilation daily technical management, ventilation system optimization transform, safely production of the mine has a great important meaning. And it is an effective method to guarantee mine ventilation system qualified.The ventilation system is one that is influenced by many kinds of factors and is random, dynamic, complicated. Rounded the basic content that the mine ventilation system is safe, reliable and economy is rational on the premise of feasible technology and based on the definition of the mine ventilation system, an overall and scientific ventilation index system was put forward, Which includes 11 pieces of indices mainly covering the three aspects of technical feasibility, economical rationality and safety reliability on mine ventilation system. In this paper, a model of multi-level extension synthetic evaluation was established by applying extenics theory and methods. In this model, the comprehensive correlative degree was taken as the evaluation criteria so as to avoid the subjectivity caused by human during evaluation. Then, this model was applied to evaluate the ventilation system of Liangjia mine of Longkou Mining Group Company and Sanhekou shengjian colliery of Shandong province, the comprehensive status of this ventilation system was obtained, the existing problems and the corresponding countermeasures were put forward. The evaluation result indicates that this method is more objective than other evaluation methods mentioned in this article and the result is more in accord with the production reality than other methods.