| 摘要 |
A thermal processing apparatus is provided to efficiently remove combustion gas generated from a target heating object by raising flow speed. A heating furnace(1) has tunnel-shaped heating spaces(2a,3a,4a). A carrying-in unit(6) and a carrying-out unit(7) of a target heating object(8) are installed at both ends of the heating furnace. A transfer unit(9) transfers the target heating object carried in the heating space from the carrying-in unit to the carrying-out unit. A heating unit heats the returned target heating object. Air current generating units(12,13,14,15,16,17) form air currents flowing to a returning direction of the target heating object in the heating space. A cross section of the heating space is changed along the returning direction of the target heating object. The cross section crosses at right angles to the returning direction of the target heating object.
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