Research And Application About Prediction Model Of The Thermal Environment In Mine

Along with the development of mining industry, underground temperature is getting higher with the increasing depth of mine mining. High temperature of deep shaft hazard has already become one of the grave issues of constraining coal mining safety, so the heat-harm of mine has thus become an urgent problem and unignorable. In order to control the heat hazards, forecast of underground thermal environment has to be done. Specialized studies on the prediction of airflow temperature and humidity by the domestic and international scholars have put forward many practical calculation methods.Based on previous studies, the paper explores different phenomenon of airflow and surrounding rock heat exchange and compare the measured values with the simulated values of the roadway.This paper is mainly based on the theoretical model of three-dimensional surrounding rock temperature field to simulate the temperature distribution, and establishing practical mathematical model which suitable for temperature and humidity environment's prediction and analysis in mine ventilation network. Taking horizontal roadway and sloping roadway as the research object, and exploring the air temperature distribution characteristics under the various conditions such as considering heat conduction, water evaporation and condensation and air compression and expansion. And taking contrast verification by mine measuring data. For further precisely establishing mine temperature and humidity environment's forecast and control which providing the theoretical method, also providing scientific basis for ventilation and cooling optimization selection decisions.