Heating furnace

F - Mech Eng,Light,Heat,Weapons – 27 – B

Patent

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Details

F27B 9/00 (2006.01)

Patent

CA 2170708

A heating furnace of convection type is provided for improving rising characteristics at an operation start-up time to stabilize conditions within the heating furnace in a shorter time and maintaining a uniform temperature in the furnace. The heating furnace comprises a conveyer unit for supporting an article to be heated and conveying the article through a heating chamber of a furnace body having an article inlet and outlet, a heating source provided in at least one of side and top portions of the furnace body such that the heating source is exposed to the interior of the heating chamber, an exhaust port formed in a lower portion of the heating chamber at a position displaced a predetermined distance from the heating source in the longitudinal direction of the furnace, the exhaust port being positioned below a lower end of the heated article, and an air inlet port associated with the heating source and provided below the exhaust port.

Four à convection permettant d'améliorer les caractéristiques de levée en temps de démarrage d'opération, afin de stabiliser plus rapidement les conditions à l'intérieur du four et de maintenir une température uniforme dans le four. Le four comprend un transporteur qui soutient un article à chauffer et l'achemine à travers un compartiment de chauffage du corps du four possédant une entrée et une sortie pour les articles, une source de chauffage fournie dans au moins une des parties du côté et du haut du corps du four afin que la source soit exposée à l'intérieur du compartiment de chauffage, un orifice d'échappement disposé dans la partie inférieure du compartiment de chauffage à une distance prédéterminée de la source de chauffage dans la direction longitudinale du four, l'orifice d'échappement étant situé sous une extrémité inférieure de l'article chauffé, ainsi qu'une prise d'air liée à la source de chauffage et située sous l'orifice d'échappement.

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