Industrial electric heating furnaces – Arc furnace device
Patent
1983-06-29
1985-04-02
Pellinen, A. D.
Industrial electric heating furnaces
Arc furnace device
373102, F27B 126
Patent
active
045091773
ABSTRACT:
This invention relates to an electric-arc fired blast furnace system for the reduction of iron-bearing material utilizing electric-arc heated air containing a reducing gas or carbon-containing fuel allowing for a decrease in the amount of coke normally used in the reduction process. The excess reducing gases exiting the furnace are utilized as a source of power via a system consisting of turbines, compressors and a heat exchanger to drive the electrical generators which are used to provide electricity to the arc heaters. This arrangement forms an essentially closed loop furnace system for metal reduction. Injection of finely-divided coal into the arc-heated air to provide reductants is also employed.
REFERENCES:
patent: 823561 (1906-06-01), Touceda
patent: 3663792 (1972-05-01), Fey
patent: 4247732 (1982-01-01), Fey
The Making, Shaping and Treating of Steel, 9th ed., 1971, pp. 422-472.
Operation of a Blast Furnace with Superhot Reducing Gases by N. Ponghis et al. presented at AIME Conference in Detroit, MI, on 3/26/79.
Pellinen A. D.
Pezdek John Victor
Steward Susan
Westinghouse Electric Corp.
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