Industrial electric heating furnaces – Arc furnace device – Plural furnace units
Patent
1995-03-16
1996-07-09
Hoang, Tu
Industrial electric heating furnaces
Arc furnace device
Plural furnace units
373 80, 373 84, F27D 2300
Patent
active
055352359
ABSTRACT:
A melting furnace including preheating vessels for preheating raw material, and a melting furnace body having a tilting device and a heating device for heating the preheated raw material. A furnace roof covers an upper part of the melting furnace body and a combustion chamber for burning a gas generated in the melting furnace body is arranged on the furnace roof. Feed openings are arranged at side faces of the combustion chamber to feed the preheated raw material into the melting furnace body, and the side faces of the combustion chamber are positioned at a right angle to a tilting direction of the melting furnace body. Supply openings are arranged at lower ends of the preheating vessels to supply the preheated raw material through the feed openings to the melting furnace body. A connecting mechanism is provided for movably connecting the supply openings with the feed openings when the melting furnace body is tilted.
REFERENCES:
patent: 1034788 (1912-08-01), Greene
patent: 1208817 (1916-12-01), Moffat
patent: 2147070 (1939-02-01), Weinheimer et al.
patent: 2236329 (1941-03-01), Bryan
patent: 3439909 (1969-04-01), Richards
patent: 4740989 (1988-04-01), Steipe et al.
patent: 5416792 (1995-05-01), Vice
patent: 5479434 (1995-12-01), Burda
Ao Norio
Kubo Hirotsugu
Hoang Tu
NKK Corporation
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