Importance

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Abstract

A continuous heating furnace includes one or a plurality of closed type gas heaters each having a combustion chamber, a guide section that guides an exhaust gas, an exhaust hole that discharges the exhaust gas and a first radiation surface that extends in a direction perpendicular to a baking object conveyance direction wherein the first radiation surface is heated by combustion in the combustion chamber and heat from the guide section and transfers radiant heat to the baking object. The continuous heating furnace also has at least one exhaust heat transfer unit that is juxtaposed with a corresponding closed type gas heater in the conveyance direction, wherein the at least one exhaust heat transfer unit has a second radiation surface that communicates with the exhaust hole of a closed type gas heater and is heated by the exhaust gas, and a heat transfer acceleration unit that accelerates heat transfer from the exhaust gas to the second radiation surface in a direction perpendicular to the conveyance direction of the second radiation surface.

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First Claim