Electric furnaces

Details Electric furnaces Electric furnaces

1980-05-20

1983-03-01

Roskoski, Bernard

Industrial electric heating furnaces

Glass furnace device

Joule effect heating

373 76, 373120, 373 8, C03B 5027

Patent

active

043754490

ABSTRACT:
An electric furnace for fusing of fusible metal
on-metal oxide compounds, for example slag, having a side wall of steel, a plurality of electrodes depending into the furnace, a coolant distributing conduit surrounding the furnace near its upper end, and a tapping valve located in the side wall of the furnace between its upper and lower ends, the furnace being operated by melting the slag to form a melt, the outer layer of which is in contact with the inner surface of the furnace side wall which is frozen by the chilled coolant flowing over the outer surface thereof, to thereby form a frozen slag lining on the side wall inner surface which is continuously replenished as it is depleted.

REFERENCES:
patent: 775654 (1904-11-01), Higgins
patent: 1202837 (1916-10-01), Hechenbleikner
patent: 1217306 (1917-02-01), Hechenbleikner
patent: 2122469 (1938-06-01), Hitner
patent: 2686821 (1954-08-01), McMullen
patent: 3448790 (1969-06-01), Maskall
patent: 3612501 (1971-10-01), Berczynski

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