Industrial electric heating furnaces – Arc furnace device – Furnace body detail
Patent
1991-03-25
1993-01-05
Reynolds, Bruce A.
Industrial electric heating furnaces
Arc furnace device
Furnace body detail
373 22, 373 62, 373 71, 75 104, 75 1042, 75552, 266 35, 266158, 266222, F27D 100
Patent
active
051777630
ABSTRACT:
A furnace bottom structure of a direct current electric furnace has at least one furnace bottom electrode and at least one gas injection tuyere provided in the furnace bottom refractory of the direct current electric furnace. Preferably, the furnace bottom electrodes and the gas injection tuyere are embedded in a substantially cylindrical refractory body with downwardly diverging tapered upper portion. The refractory body, the furnace bottom electrodes and the gas injection tuyere form an integral furnace bottom block which is detachably attached to the bottom of the electric furnace so as to close a bottom opening of the furnace.
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Mizota Hisakazu
Takahashi Kiyoshi
Takashiba Nobuyoshi
Hoang Tu
Kawasaki Steel Corporation
Reynolds Bruce A.
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