Application Of Controllable Circulatory Ventilation In Deep And Remote Spot Of Mine

The meaning of the controllable circulatory ventilation is that bring return air back to intake air in working place. Meanwhile, the volume and quality of air should be watched according to the book "coal mine safety rules". Assistant fan is used at the before of return air .The energy of it make the air return. The rules of controllable circulatory ventilation include: adjusting of air, adjusting of temperature and saving energy. Form the theory to say, if we inspect things well, controllable circulatory ventilation can bring enough fresh air to circulatory places so that coal mine can produce safely. We study the coalface 66 in Jingting coal mine. Ventilating system of this coal mine is of from center place to corner. The main drivage face and coal face of this coal mine converge in mine section 66. There are so many ventilating equipments and ventilating ways are so long in mine sections. We build the mine sections 61 and 63 when we cut coal at the edge of mine section 66 according to the plan. Meanwhile, the situation of coal mine is places of air leakage is so many and the volume of air leakage is so big, which make the shortage of air in mine section 66 and main places using air. According to all of information, we do spot mensuration, design schemes, optimize cyber-simulate, put schemes in practice, tidy up information. Finally, we get the main conclusions. The flowing course of energy contained in ventilation system of underground mine, the relationship between energy investing, energy utilizing and energy losing are analyzed in details. The analysis provides guidance and direction for application, of controlled circulating ventilation in underground mines, especially those old mines.