CONTINUOUS HEATING FURNACE

摘要

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, a first radiation surface that extends in a direction perpendicular to a conveyance direction of a baking object, heated by combustion in the combustion chamber and heat from the guide section and transfers radiant heat to the baking object, and an exhaust hole that discharges the exhaust gas, and at least one of exhaust heat transfer unit juxtaposed with the gas heater in the conveyance direction, each having a second radiation surface that communicates with the exhaust hole and heated by the exhaust gas, and a heat transfer acceleration unit that accelerates heat transfer from the exhaust gas to the second radiation surface at one or the other end sides in a direction perpendicular to the conveyance direction of the second radiation surface.

主权项

1. A continuous heating furnace comprising:
a furnace main body; a conveyance unit configured to convey a baking object in the furnace main body; one or a plurality of closed type gas heaters each having an introduction hole into which a fuel gas flows, a combustion chamber in which the fuel gas introduced from the introduction hole is combusted, a guide section configured to guide an exhaust gas generated by combustion in the combustion chamber, a first radiation surface extending in a direction perpendicular to a conveyance direction of the baking object and configured to be heated by the combustion in the combustion chamber or heat of the exhaust gas flowing through the guide section to transfer radiant heat to the baking object, and an exhaust hole through which the exhaust gas that heated the first radiation surface is discharged, and disposed in the furnace main body; and one or a plurality of exhaust heat transfer units juxtaposed with the closed type gas heater in the conveyance direction of the baking object in the furnace main body and each having a second radiation surface that communicates with the exhaust hole of the closed type gas heater and configured to be heated by the exhaust gas to transfer the radiant heat to the baking object, and a heat transfer acceleration unit configured to accelerate heat transfer from the exhaust gas to the second radiation surface at one end side or the other end side in a direction perpendicular to the conveyance direction of the baking object in the second radiation surface.