Lapshin O. Scientific justification of microclimate normalization processes in deep or mines.

Thesis is dedicated to solution of scientific and technical problem of increase the efficiency of microclimate normalization in mine workings of deep or mines on the grounds of elaboration of new scientifically grounded methods of air cooling with use of mine water. The parameters of microclimate and efficiency of aeration in deep ore mines are determined. Mathematical simulation of heat-exchange processes at the air moving in mine workings is fulfilled. It allows to predict the condition of thermal regime with a view to its regulation. The pattern of heat-mass exchange at the mine air cooling in the chambers of irrigation by mine water was established. Realization of this pattern with use of computer program allows to define the optimal regimes of microclimate normalization in mine workings of deep mines. Was defined the parameters and efficiency of air cooling in the chambers of irrigation, among them: air velocity in the chamber 1-2 m/s; irrigation rate 0,7-1,2 kg/kg; cooling efficiency 0,3-0,5; magnitude of temperature decline within the limits 8-10°С. Based on scientific investigations, the new method of mine air cooling with use of mine water was elaborated and introduced in the deep ore mines. The method provides accumulation of mine water on the higher horizon, cooling of mine water up to 11-13°С, its supply by thermal insulation pipe to the chamber of irrigation for the nozzle-cooling of air and admission of cooled mine air in zone of mine works for normalization of microclimate there. Industry - mining (engineerings sciences)