Industrial electric heating furnaces – Arc furnace device – Furnace body detail
Patent
1995-04-27
1997-07-22
Hoang, Tu B.
Industrial electric heating furnaces
Arc furnace device
Furnace body detail
373108, H05B 700
Patent
active
056510241
ABSTRACT:
A cooled bottom electrode for a direct-current electric furnace includes one or more steel bars incorporated in a refractory hearth of the furnace and having at least its upper end in contact with the bath of molten metal within the furnace, at least a first upper liquid part and at least a second lower solid part being defined along the steel bar and being divided by a separation zone, the lower solid part being associated with cooling elements. The cooling elements are copper cooling means elements introduced in cooperation with the solid part of the steel bar and being inserted at least therewithin and extending at least partly within the bar and towards the inside of the furnace. The copper cooling elements cooperate with a cooling-water system positioned below the bar and in cooperation therewith.
REFERENCES:
patent: 4125737 (1978-11-01), Anderson
patent: 4592066 (1986-05-01), Repetto et al.
patent: 4628516 (1986-12-01), Voss-Spilker et al.
patent: 4637033 (1987-01-01), Buhler
patent: 4697273 (1987-09-01), Cordier
patent: 4715041 (1987-12-01), Buhler et al.
patent: 4982411 (1991-01-01), Michelet et al.
patent: 5410564 (1995-04-01), Takashiba et al.
Gensini Gianni
Pavlicevic Milorad
Danieli & C. Officine Meccaniche SpA
Hoang Tu B.
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