APPARATUS FOR RECOVERING HEAT FROM FURNACE

摘要

The present invention relates to a heat recovering device for a furnace. The heat recovering device for a furnace includes: a discharge pipe which exhaust gas of a furnace passes through; a molten salt heat exchanger installed in the discharge pipe, wherein molten salt heat-exchanged with the exhaust gas passing through the discharge pipe passes through the molten salt heat exchanger; at least a heat transfer medium heat exchanger connected to the molten salt heat exchanger, wherein a heat transfer medium heat-exchanged with the molten salt passes through the at least a heat transfer medium heat exchanger; and an air preheater connected to the heat transfer medium heat exchanger, wherein the air for combustion, which is heat-exchanged with the molten salt, passes through the air preheater. The heat recovering device can improve the efficiency of recovering energy based on the molten salt heat exchanger.