Furnace bottom structure of direct current electric furnace

Details Furnace bottom structure of direct current electric furnace Furnace bottom structure of direct current electric furnace

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F27D 1/00 (2006.01) C21C 5/52 (2006.01) F27B 3/08 (2006.01) F27B 3/12 (2006.01) F27D 3/16 (2006.01) F27D 7/02 (2006.01) H05B 7/06 (2006.01) H05B 7/12 (2006.01)

Patent

CA 2039295

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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