Design and implement of shanxi coal mine gas meteorological forecast and warning system

Coal Mine gas explosion in a coal mine production is serious accident,it not only seriously affect the normal production of the coal industry,more huge life and property loss.it is closely related to weather changes.In this paper,according to the Jinzhong city,Shanxi Province in 1995～2009 colliery gas explosion accident of gas concentration and meteorological data and the affecting factors from July 20,2009 to March 10,2011 in 11the medium gas concentrated coal mine.By method of statistics,the main meteorological factors for coal mine gas was identified which are the wind speed of 1 day before,temperature change of 1 ~ 2 days before and pressure change of 2 days before.The model of the relationship between coal mine gas concentration and influential factors is established.The coal mine gas meteorological forecast warning system in Shanxi Province is constructed and the prediction model of gas accumulation which can be early warning of coal mine gas concentration trend and density to warn the administrators to focus on ventilation and reduce the accident.It can be a new mode of meteorological service for coal mine security.