Direct current arc furnace

H - Electricity – 05 – B

Patent

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Details

H05B 7/10 (2006.01)

Patent

CA 2528055

The invention relates to a direct current arc furnace (1) comprising an electrode (12) which is maintained inside the furnace and which can be replaced in order to compensate the combustion of the electrode. Said direct current arc furnace also comprises a counter electrode (10, 11) which is arranged in the furnace, for example, a base electrode. In order to prevent loss of power during replacement and/or attachment of the electrode in said type of furnace and in order to improve the sealing power of the electrode in the furnace cover, the whole electrode branch (14) is arranged with an electrode holder and a replacement device is arranged on a furnace platform (13) or a frame above the furnace (1).

L'invention concerne un four à arc à courant continu (1) comprenant: une électrode (12) qui est située à l'intérieur du four et peut être remplacée pour compenser la combustion de l'électrode; et une contre-électrode (10, 11) située dans le four, par exemple une électrode de masse. Selon l'invention, afin d'éviter des pertes de puissance dans un four de ce type, au cours du processus de remplacement ou de raccordement de l'électrode, et d'améliorer l'étanchéité de l'électrode dans le couvercle de four, l'intégralité du cordon d'électrode (14) est située avec une douille d'électrode et un dispositif de remplacement, au niveau d'une plate-forme de four (13) ou d'une armature située au-dessus du four (1).

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