Final temperature of ventilation air heating in multi-row mine calorifier units

Abstract

It is known that at the vast majority of mines and mines located in areas with harsh climate, in winter time part of the atmospheric air supplied to underground workings for their ventilation is heated. To do this at the shafts and adits, where the ventilation jet comes, build, as a rule, steam caloriferous installations with a multi-row arrangement of metal plate calorifiers, the sequential movement of heated air in them provides the necessary air temperature difference...