Application of Air Turbine Refrigeration Technology in Cooling of Heading Face

With the continued mining in deep mine and widely use of mechanization equipments, the heading face temperature of Gubei Coal Mine increases abnormally, which seriously affect the safety operation of worker and normal production of mine. Based on the analysis of the characters and causes of heat damage, and considering the actual situation of heading face, the article proposes that applying air turbine refrigeration technology in the cooling of heading face. The field measurement shows that air turbine technology not only can acquire low temperature, reduced by about 7 ℃，but also have fast cooling speed.