Industrial electric heating furnaces – Arc furnace device – Electrode
Patent
1997-09-17
1999-08-03
Walberg, Teresa
Industrial electric heating furnaces
Arc furnace device
Electrode
373 74, H05B 706
Patent
active
059334452
ABSTRACT:
Cooling system for cathodes, or electrodes, (11) in Direct Current electric arc furnaces, the cathodes (11) comprising a lower consumable graphite part (11a), from which the electric arc is sparked, associated at the upper part with a hollow metallic part (11b) by means of a joint (13), inside the metallic part (11b) there being included a closed cooling circuit (19) with water or other similar cooling fluid, defining an area of evaporation (17) arranged substantially in cooperation with the lower end of the metallic part (11b) and an area of condensation (18) arranged in cooperation with a desired upper area of the metallic part (11b), the area of condensation (18) cooperating with a heat exchanger (15) associated with the outer wall of the metallic part (11b), there also being included an ascending channel (14) for the steam (19a) from the evaporation area (17) to the area of condensation (18) and at least a descending channel (16) whereby the condensation descends, under force of gravity, from the area of condensation (18) to the area of evaporation (17), the descending channel (14) and ascending channel (16) communicating with each other in correspondence with the area of evaporation (17) and the area of condensation (18), the descending channel (16) corresponding with the inner wall of the metallic part (11b) and having an inferior section than the section of the ascending channel (14).
REFERENCES:
patent: 2942046 (1960-06-01), Johson et al.
patent: 4121042 (1978-10-01), Prenn
patent: 4168392 (1979-09-01), Prenn
patent: 4256918 (1981-03-01), Schwabe et al.
patent: 4490825 (1984-12-01), Persson
patent: 4559630 (1985-12-01), Maes
patent: 4610015 (1986-09-01), Hill et al.
Gensini Gianni
Kapaj Nuredin
Pavlicevic Milorad
Poloni Alfredo
Danieli & C. Officine Meccaniche SpA
Van Quang
Walberg Teresa
LandOfFree
Cooling system for cathodes in direct current electric arc furna does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cooling system for cathodes in direct current electric arc furna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooling system for cathodes in direct current electric arc furna will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-856303