IMPROVED SUPPLY PLENUM FOR CENTER-TO-ENDS FIBER OXIDATION OVEN

摘要

One embodiment is directed to an oven for heating fibers. The oven comprises a supply structure disposed within the oven between first and second ends of the oven. The supply structure comprises a plurality of plenums. The plenums are in fluid communication with a heating system. Each of the plenums comprises a pair of side walls, a bottom wall, and a top wall. Each of the plenums is configured so that first openings are formed in the respective side walls of that plenum. At least one plenum is configured so that one or more second openings are formed in at least one of the top wall or the bottom wall of at least one plenum. The at least one plenum is configured to supply heated gas from the heating system into the chamber from the first openings and said one or more second openings of the plenum.