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(11) | EP 0 079 803 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Bogie type furnace |
| (57) This invention relates to a bogie type furnace having a bogie 4 movable into and
out of a furnace chamber zone 3 between opposed furnace walls 1 of a main furnace
structure. Known furnaces have poor sealing systems. According to the present invention the bogie 4 has an outwardly extending edge portion with a downwardly facing surface and the main furnace structure has inwardly extending downwardly facing surfaces 9 at or in proximity to said opposed walls 1, said respective downwardly facing surfaces 9 being formed and arranged so as to be at substantially the same level and to define a small clearance 8 between their opposed free edges in an inserted operational position of the bogie 4 in the firing chamber zone 3. At least one of said bogie 4 and main furnace structure 1 is provided with a sealing means support 12 supporting an upwardly facing heat resistant sealing means 10 so as to be movable between a sealing position with said sealing means 10 in sealing engagement with said downwardly facing surfaces 9 of both the bogie 4 and main furnace structure 1 to seal the clearance 8 therebetween and an open position in which said sealing means 10 is spaced from said downwardly facing surfaces 9. |