US 12,267,938 B2
Self-baking electrode
Philippe Jacob, Menthon-Saint-Bernard (FR); Damien Berthollet, Merlas (FR); and Pierre-Henri Morin, Annecy (FR)
Assigned to FERROPEM, Chambery (FR)
Filed by FERROPEM, Chambery (FR)
Filed on Sep. 8, 2021, as Appl. No. 17/469,475.
Application 17/469,475 is a continuation of application No. PCT/FR2020/050429, filed on Mar. 4, 2020.
Claims priority of application No. 19/02394 (FR), filed on Mar. 8, 2019.
Prior Publication US 2021/0410242 A1, Dec. 30, 2021
Int. Cl. H05B 7/09 (2006.01); H05B 7/10 (2006.01); H05B 7/107 (2006.01); F27B 3/08 (2006.01)
CPC H05B 7/09 (2013.01) [H05B 7/107 (2013.01); F27B 3/085 (2013.01); H05B 2203/017 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A self-baking electrode for an electric arc furnace, said self-baking electrode comprising:
a substantially cylindrical shroud comprising a longitudinal central axis A, an open upper end, and an open lower end, said shroud being made of an electrically-conductive material and disposed vertically on top of a vat of the furnace over substantially one length of the self-baking electrode;
a central column disposed within the shroud, substantially aligned on the longitudinal axis A, said central column being adapted to be suspended to a device independent of said shroud such that said central column is adapted to slip in vertical translation within the shroud; and
a crude carbonaceous paste disposed around the central column in a top portion of said shroud, said paste configured to soften and then bake under an effect of heat into a stiff carbonaceous paste sticking to the central column in a bottom portion of said shroud,
wherein said central column comprises a series of electrically-conductive carbonaceous elongate elements, and wherein said carbonaceous elongate elements are bendable by a lateral force applied to a bottom portion of the central column.