| 摘要 |
<p>Discrete objects passing through a continuous furnace, or being processed by batch, at temps. such that reaction with normal refractories or damaging local overheating at contact points would occur, are supported by gas which may also serve as heat transfer medium passing through porous refractory underneath objects, eg Oxides may be treated at >2000 degrees C using graphite refractory. The supports may also contain channels for passage of additional gas directed to induce rotation in appropriate objects, and may be shaped to fit their bases. The supports may be constrained by guide rails to pass in train through a continuous over over a floor pierced to allow passage of gas.</p> |
