| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous kiln for a flat sheet glass in which a use of an expensive heat-resistant filter is prevented as much as possible and a high heating efficiency can be realized. SOLUTION: There is provided a continuous kiln for a flat sheet glass in which it has an air-tight structure using a stainless metallic material at a surface of an inner surface of the kiln; the structure is comprised of a plurality of zones that can be controlled independently for their temperatures; each of a clean air supplying pipe 1a having a fed air amount controlling damper 16 and an inter-kiln atmosphere discharging pipe 1b having a discharging amount controlling damper 17 is connected to each of the zones; a baffle 7 forming an atmosphere circulation passage 9 is arranged in each of at least a loading zone of either the loading zone or a discharging zone with an inter-zone temperature less than 250 to 300 deg.C, and both a circulation fan 11 and a heating means 10 are arranged in the atmosphere circulation passage; and a heat-resistant filter 12 is arranged at a circulating atmosphere inlet opened into the baffle.
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