Application Research Of Balance Evaluation Method In Coal Mine Gas Emisson Grade Appraising

The mine gas level identification is a basic and important daily technical management job.Mine gas emission is an important factor in the mine gas level identification. Strengthening the mine roadway emission research is very important for mine design and production safety management.The paper Research is from the Anhui University of Science and Technology in cooperation with the Huaibei Mining Group project "Identification of gas analysis system level studies." Paper choose gas emissionin in the mine gas level identification as research topic. The paper using fuzzy comprehensive evaluation and mine gas emission balance algorithm as a tool to explore the balance of gas emission in the new method of analysis.This paper first introduced the significance and the domestic and foreign main research present situation of mine emission error analysis in the mine gas level identification, and then introduced the basic concept of mine gas and the primary data's collection of mine gas level identification work, as well as the error analysis, the reasonable judgment and the standardization to the collective raw data. After simple introduction of basic principles of fuzzy mathematics and multistage fuzzy comprehensive evaluation, this paper proposed mine gas emission balanced degree's multi-objective error analysis by the multistage fuzzy comprehensive evaluation, and on this basis established the computation model to calculate the gas emission at ventilation flow of the scope of network .For the mine gas distribution within the various branches of the calculation of gas concentration, the computation model is a homogeneous system of linear equations to explore the method to the solution of this equation. Combined with the contents need of this paper, it gave the method used to solve the equations. According to the principle of ventilation network solution, applying to the spanning tree method, it obtained the steps by current method to find gas emission in the testing mine gas tunnel.Finally, it took J2EE as a development tool, and it developed prototype system which had primitive gas data feeds and the mine gas level identification function. This prototype system included such modules as data import, basic data setup, data entry, data statistics, error analysis, the output of number report and so on.