Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace
Patent
1983-03-23
1985-04-02
Andrews, M. J.
Metallurgical apparatus
Means for treating ores or for extracting metals
By means applying heat to work, e.g., furnace
266196, 266236, C21B 714
Patent
active
045083231
ABSTRACT:
A metallurgical molten-metal runner has a support trough, a trough-shaped temperature-equalizing layer received in and lining the trough, a system for cooling the layer isothermally to about 100.degree. C., a permanent refractory outer lining received in and lining the layer, and a renewable refractory inner lining received in and lining the outer lining and in direct contact with molten metal in the runner. The layer is of greater thermal conductivity than the linings. The cooling system includes conduits in heat-conducting engagement with the layer and an arrangement for circulating a coolant through the conduits. Water or, for safety's sake, oil can be used as the coolant, normally in liquid state to keep the layer below 100.degree. C. The layer according to this invention has a coefficient of thermal conductivity greater than 10 Kcal/M.multidot..degree.C..multidot.h, preferably above 25 Kcal/m.multidot..degree.C..multidot.h and can be composed principally of silicon carbide, semigraphite, or graphite.
REFERENCES:
European Application, 0,060,239 1-3-82.
Andrews M. J.
Arbed S.A.
Dubno Herbert
Ross Karl F.
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