H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 7/12 (2006.01) F27D 1/18 (2006.01) F27D 11/10 (2006.01)
Patent
CA 2606316
The invention is an electric insulation system for a steel-structured lid of an electric arc furnace, where the electrode lead-throughs are provided with electric insulation for preventing breakdowns, and the lid is sealed from the furnace vessel by means of a sand seal. The lid is divided by steel-structured panels to at least six mutually electrically insulated segments, three of which form the lid center part, so that each center part segment outlines one lead-through of an electrode 102, and at least three of which form the outer perimeter of the lid.
L~invention est un système d~isolation électrique pour un couvercle à structure d~acier d~un four à arc électrique, où les passages de tige d~électrode sont pourvus d~une isolation électrique pour éviter les pannes, et le couvercle est scellé à partir de la cuve de four au moyen d~un joint de sable. Le couvercle est divisé par des panneaux à structure d~acier en au moins six segments mutuellement isolés électriquement, dont trois forment la partie centrale du couvercle, de sorte que chaque segment de partie centrale trace le contour d~un passage de tige d~une électrode 102, et dont au moins trois forment le périmètre externe du couvercle.
Ollila Janne
Ronnberg Tom
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Outotec Oyj
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