Reduction of dustiness of the mine atmosphere in the mines of the extreme north by tilting of a ventilation jet

Abstract

Seasonal fluctuations of air dustiness in mines in the permafrost region are known to be associated with the processes of evaporation and condensation of moisture, which take place in mine workings in cold and warm periods of the year, respectively. The former increase and the latter reduce dust generation during excavation, loading and transportation of coal ...