| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing device which can be used in a continuous annealing furnace having a floater facility for passing a steel sheet through the furnace while floating it, does not contact the steel sheet, is superior in maintenance and operability, and is inexpensive. SOLUTION: In a sealing device having a structure which passes a steel strip in the furnace while floating the steel strip by using an circulating atmospheric gas blown from a plurality of supply openings, and sucks a part of the circulating atmospheric gas from a suction opening, this sealing device includes inhibiting the inflow of an atmospheric gas from the upstream stage of partition plates by arranging the partition plates in front and back of a plurality of supply openings, and arranging suction openings downstream from a position at which an integrated value given by integrating flow rates of the circulating atmospheric gases supplied from the supply openings installed sequentially from the end of the upstream side toward the downstream side is more than half of the flow rate of the gas flowing through the suction opening. COPYRIGHT: (C)2008,JPO&INPIT
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