Industrial electric heating furnaces – Arc furnace device – Power supply system
Patent
1992-02-28
1993-04-20
Reynolds, Bruce A.
Industrial electric heating furnaces
Arc furnace device
Power supply system
373 43, 373 47, 373 78, 373102, 373103, 373104, H05B 7144
Patent
active
052048730
ABSTRACT:
Two DC electric arc furnaces are provided side by side. The both DC electric arc furnaces are connected by a duct. Each of two power source apparatuses is mounted near and associated with each of the DC electric arc furnaces. The anodes of the both power source apparatuses are mutually connected by an anode cable and the cathodes of the apparatuses by a cathode cable. The anodes and the cathodes of the both DC elecric furnaces are connected to the anode cable and the cathode cable, respectively, via a connection circuit adapted to supply electric power alternately to either of the DC electric arc furnaces. When a raw material is molten in one of the DC electric arc furnaces, electric power is supplied by the both power source apparatuses to this DC electric arc furance. The exhaust gas at a high temperature produced in this DC electric arc furnace is sent to the other DC electric arc furnace through the duct and preheats another raw material charged there beforehand.
REFERENCES:
patent: 993105 (1911-05-01), Reid
patent: 1331625 (1920-02-01), Critchett
patent: 1913161 (1933-06-01), Jonas
patent: 3612740 (1971-10-01), Gierek
patent: 3950601 (1976-04-01), Popov et al.
patent: 4001487 (1977-01-01), Schumacher et al.
Daidotokushuko Kabushikikaisha
Drucker William A.
Hoang Tu
Reynolds Bruce A.
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