Abstract:

LN cooling system is a new technology which be studied and applied recently in coal mine, it has cooling air and extinguishing function, in order to solve the problem of Heijin coal mining working face in high temperature hot against, in the face with a LN cooling system, now given the introduction of system type、process and equipment selection, and list the attentive question for design and operation which were analyzed and discussed, running results show that the application of LN cooling system is feasible.