FIELD: mining.
SUBSTANCE: invention relates to heating systems of various objects and is mainly intended to heat the air supplied to mine The heating unit for air supplied to the mine contains combustion chamber вair heater, fan, smoke exhauster and pipelines The unit has hot air distribution device and chamber for cold and hot air mixing, they are located in air supply duct upstream the mine fan, at that the smoke exhauster is located at gases output and has fan to create vacuum in gas flow and pressure in air flow, at that the hot air distribution device is made as ring out of pipe, having slot directed across the cold air flow, and connected to hot air pipeline.
EFFECT: the unit reduces expenses for air heating and excludes furnace gases ingress in air supplied to the mine.
3 dwg
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