| 摘要 |
A tunnel furnace comprising a floor, sides, and a vault composed of refractory material, the vault being comprised of independently movable sections suspended from carriage means aligned transversely to the longitudinal axis of the furnace whereby each section may be removed independently from the furnace, each sec movable section of the vault comprising refractory walls and a floor suspended from the carriage means and constituting a bin adapted to the reception of refractory, heat-retaining material.
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