Industrial electric heating furnaces – Glass furnace device – Joule effect heating
Patent
1980-02-07
1983-06-21
Roskoski, Bernard
Industrial electric heating furnaces
Glass furnace device
Joule effect heating
373 27, 373 45, 373 8, C03B 502
Patent
active
043897240
ABSTRACT:
A substantially spherically-shaped electric melting furnace includes a carbon-lined crucible. The interior of said crucible is sealed from the atmosphere outside the crucible and a vacuum pump and venturi device control the atmosphere within the crucible by removing oxygen therefrom. A feeder lock allows material to be fed into the crucible without interfering with the atmospheric control of the crucible and a tap hole adjacent the lower portion of the crucible allows molten material to be removed. When used in the manufacture of mineral wool insulation, slag is fed into the crucible to be melted and the molten slag from the tap hole is delivered to a fiberizing device.
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Roskoski Bernard
Wooding Corporation
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