Abrégé

A metallurgical furnace including a vessel with a lower shell for containing a metal bath, the metal bath composed of molten metal and an overlying layer of slag. The lower shell is tiltingly supported and provided with a deslagging opening for evacuating the slag and a tapping opening for tapping the molten metal. The vessel includes an upper shell removably positioned on the lower shell and first and second inlet openings for feeding. The vessel includes a closing roof for the upper closing of the vessel removably positioned on the upper shell and a passage opening for the passage, through the same, of at least one electrode, at least one charge opening for feeding, through the same, charge material in the solid state. At least one of the inlet openings, passage opening, and charge opening is closed or associated with a closing element.

Classes IPC  ?

• F27D 1/00 - CarcassesGarnissagesParoisVoûtes
• F27D 1/02 - CouronnementsVoûtes
• F27D 3/00 - ChargementDéchargementManutention des charges
• F27D 11/10 - Disposition des électrodes
• C21B 11/10 - Fabrication de la fonte brute autrement que dans les hauts fourneaux dans des fours électriques
• C21C 5/52 - Fabrication de l'acier au four électrique
• C21C 5/54 - Procédés donnant des scories de composition particulière
• F27B 14/02 - Fours à creusetsFours à bassin avec dispositions pour le basculement ou l'oscillation
• F27B 14/06 - Fours à creusetsFours à bassin chauffés électriquement, p. ex. creusets à induction, avec ou sans une autre source de chaleur
• F27D 3/14 - Chargement ou déchargement d'un matériau liquide ou fondu
• F27D 3/15 - Équipement de piquéeÉquipement pour l'élimination du laitier
• H05B 7/144 - Sources de puissance spécialement adaptées pour le chauffage par décharge électriqueCommande automatique de la puissance, p. ex. en commandant la position des électrodes
• H05B 7/20 - Chauffage direct à arc, c.-à-d. au moins une extrémité de l'arc agissant directement sur le matériau à chauffer, y compris le chauffage par résistance additionnel produit par le courant d'arc traversant le matériau à chauffer

Abrégé

A metallurgical furnace (10) of the convertible type to an electric arc furnace or to a converter for conducting production processes for the production of metals in the molten state, in particular steel or cast iron, it comprises a vessel, in turn comprising a lower shell (11) for containing the metal bath, the metal bath being composed of molten metal and an overlying layer of slag, wherein the lower shell (11) is tiltingly supported and is provided with a deslagging opening (15) for evacuating the slag and with a tapping opening (16) for tapping the molten metal, and an upper shell (12) removably positioned on the lower shell (11) and provided with at least one inlet opening (17a, 17b) for feeding, through the same, charge material in the solid state or in the molten state, a closing roof (13) for the upper closing of the vessel, wherein the closing roof (13) is removably positioned on the upper shell (12) and is provided with a passage opening (18) for the passage, through the same, of at least one electrode (E) and at least one charge opening (20) for feeding, through the same, charge material in the solid state, wherein at least one of the inlet openings (17a, 17b), the passage opening (18), the charge opening (20) is closed or can be associated with a closing element of the removable type, and wherein the lower shell (11) has a diameter D and the vessel has an overall height H ranging from 0.70D to 1.25D, preferably ranging from 0.70D to 0.80D if the furnace is used as an electric arc furnace and from 0.80D to 1.25D if the furnace is used as a converter.

Classes IPC  ?

• C21B 11/10 - Fabrication de la fonte brute autrement que dans les hauts fourneaux dans des fours électriques