FIELD: power industry.
SUBSTANCE: invention relates to a cooler of combustion gas for cooling of raw, hot combustion gas from the electric arc furnace of the cast iron and steel making enterprise. Each combustion gas cooler has a gas-inlet chamber, a gas-outlet chamber and an array formed by gas-cooling pipes, extended between the inlet chamber and the outlet chamber and laid into them. Each gas-cooling pipe has a bell-shaped input end with aerodynamically curved profile for gas acceleration, that is efficient for providing of laminar current of combustion gas in a gas-cooling pipe. Also the method and the device for cooling and purification of the furnace combustion gas and the system of the furnace combustion gas heat utilisation are described.
EFFECT: possibility of suction of combustion gas directly from the electric arc furnace without plugging with dust and sublimation products present in combustion gas is provided.
20 cl, 3 dwg, 1 tbl
