Abrégé

A method for reducing molten raw materials, includes placing the raw materials, in a solid or molten state, on an inductively heated bed with coke pieces. The reduced melt that runs off the coke bed is collected and the waste gases are discharged. A coke bed is inwardly limited by a tube-shaped element through which the reaction gases are drawn off via a plurality of draw-off openings in the tube-shaped element. The corresponding device has a reactor for a bed with coke pieces and an induction heater with at least one induction coil. The reactor has a loading opening and a discharge opening for the treated melt. The coke bed is ring-shaped around a tube-shaped element. The material of the tube-shaped element allows inductive coupling to the induction field of the induction coil and it has draw-off openings for drawing off reaction gases from the coke bed.

Classes IPC  ?

• F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires
• F27D 1/10 - Garnissages monolithiquesLeurs supports
• C22B 7/04 - Mise en œuvre des scories
• C22B 5/10 - Procédés généraux de réduction appliqués aux métaux par voie sèche par des agents réducteurs carbonés solides
• C22B 7/02 - Mise en œuvre des cendres folles
• F27B 1/08 - Fours à cuve ou fours verticaux similaires ou à prédominance verticale chauffés autrement que par un combustible solide mélangé à la charge
• F27B 1/10 - Parties constitutives, accessoires ou équipements spécialement adaptés à ces types de fours
• F27D 11/06 - Chauffage par induction, c.-à-d. dans lequel le matériau à chauffer ou son contenant, ou bien les éléments incorporés dans celui-ci, constitue le secondaire d'un transformateur
• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés

Abrégé

The object of the invention are novel processes for the production of polygranular graphite bodies and the polygranular graphite bodies produced thereby.

Classes IPC  ?

• C04B 35/52 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite
• C04B 35/532 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite obtenus à partir de particules carbonées avec ou sans autres composants non organiques contenant un liant carbonisable

Abrégé

The object of the invention is a novel process for the production of graphite bodies, as well as the graphite bodies produced thereby.

Classes IPC  ?

• C04B 35/52 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite
• C04B 35/532 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite obtenus à partir de particules carbonées avec ou sans autres composants non organiques contenant un liant carbonisable

Abrégé

A method produces a molded part from carbon containing carbon fibers in an amount of less than 20% by weight. The method includes comminuting waste parts or scrap parts formed from a carbon fiber-reinforced synthetic material, a carbon fiber reinforced carbon or a carbon fiber reinforced concrete. A mixture is produced from the comminuted product, a binder such as pitch, a carbon material such as coke and optionally one or more additives, wherein the mixture contains less than 20% by weight of fibers. The mixture is molded into a molded part and the molded part is carbonized. Optionally, the molded carbonized part is impregnated with an impregnating agent. Finally and optionally, the molded carbonized part or the molded part impregnated part is graphitized.

Classes IPC  ?

• C08K 7/06 - Éléments
• C04B 35/52 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite
• C04B 35/532 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite obtenus à partir de particules carbonées avec ou sans autres composants non organiques contenant un liant carbonisable
• C04B 35/622 - Procédés de mise en formeTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques
• C04B 35/83 - Fibres de carbone dans une matrice carbonée
• D01F 9/14 - Filaments de carboneAppareils spécialement adaptés à leur fabrication par décomposition de filaments organiques
• H05B 7/085 - Électrodes non consommables constituées principalement de carbone
• C01B 32/184 - Préparation

Abrégé

A method determines the consumption of electrode material during the operation of an electric furnace, particularly an arc furnace for producing steel. The method determines a weight of an electrode column, which is arranged in the electric furnace or is to be introduced into the electric furnace, using a weighing device. A device for determining the consumption of electrode material of an electric furnace, particularly an arc furnace for producing steel, is provided for performing the method. The device contains a weighing device for determining the weight of at least one electrode column which is arranged in the electric furnace or is to be introduced into the electric furnace, wherein the weighing device is integrated in an operating device of a system containing the electric furnace. Vibration conditions of the electrode column during operation of the electric furnace can also be determined with the method and with the device.

Classes IPC  ?

• G01N 5/00 - Analyse des matériaux par pesage, p. ex. pesage des fines particules séparées d'un gaz ou d'un liquide
• C21C 5/52 - Fabrication de l'acier au four électrique
• F27D 11/10 - Disposition des électrodes
• H05B 7/10 - Fixations, supports, bornes ou dispositions pour l'avancement ou le guidage des électrodes
• B66C 13/16 - Utilisation de dispositifs indicateurs de positionnement ou de pesée
• G01G 19/14 - Appareils ou méthodes de pesée adaptés à des fins particulières non prévues dans les groupes pour peser des charges suspendues
• F27D 19/00 - Aménagement des dispositifs de commande
• G01G 3/14 - Appareils de pesée caractérisés par l'utilisation d'organes déformables par élasticité, p. ex. balances à ressort dans lesquels l'élément de pesée est constitué par un corps solide soumis à une pression ou une traction pendant la pesée utilisant la mesure des variations de la résistance électrique
• F27D 11/00 - Aménagement des éléments pour le chauffage électrique dans ou sur les fours

Abrégé

The present invention relates to a method for determining the consumption of electrode material during the operation of an electric furnace, particularly an arc furnace for producing steel, wherein the method comprises determining the weight of at least one electrode column arranged on or leading into the furnace by using a weighing device. The present invention further relates to a device for determining the consumption of electrode material of an electric furnace, particularly an arc furnace for producing steel, wherein the device comprises a weighing device for determining the weight of at least one electrode column arranged on or leading into the furnace, wherein the weighing device is integrated into an operating device of a system comprising an electric furnace. Vibration conditions of an electrode column during operation of an electric furnace can also be determined with the method according to the invention and the device according to the invention.

Classes IPC  ?

• C21C 5/52 - Fabrication de l'acier au four électrique
• B66C 1/40 - Crochets de grues formés ou munis de dispositifs de mesure ou d'indication de charge
• F27D 11/10 - Disposition des électrodes
• G01G 19/14 - Appareils ou méthodes de pesée adaptés à des fins particulières non prévues dans les groupes pour peser des charges suspendues
• H05B 7/10 - Fixations, supports, bornes ou dispositions pour l'avancement ou le guidage des électrodes

Produits et services

Electronic monitoring systems for electrical arc furnaces comprising computer hardware and computer software. Technical support services, namely repair of faulty graphite electrode performance equipment; installation and maintenance of computer hardware. Installation and maintenance of computer software.

Abrégé

A method for reducing oxidic slags and dusts possibly loaded with organics uses an inductively heatable coke bed extending in the axial direction and having a temperature gradient. Reaction gas is sucked off in an axial region of the coke bed between two induction bodies and metal regulus and slag melt are tapped on the lower end. An inductively heatable shaft furnace chargeable with a lumpy coke bed for the reduction of metallic slags is made of an electrically insulating refractory material, has an adjustable temperature gradient includes at least one cooled induction body on the head side, a suction connection in an axial region where the prevailing temperature exceeds the condensation point of the substances to be removed, located below the cooled induction body on the head side, and an opening for tapping metal regulus and slag melt is provided on the lower end of the furnace.

Classes IPC  ?

• C22B 7/02 - Mise en œuvre des cendres folles
• C22B 7/04 - Mise en œuvre des scories

Abrégé

In a method for processing and/or reducing solid or molten materials and/or pyrophoric materials, in particular shredder light fractions, the solid or molten materials are charged onto an at least partially inductively heated graphite body, wherein a reducing agent different from the carbon of the graphite is introduced, and the flowing-off reduced and/or degassed melt is collected, wherein the reducing agent is introduced together with the solid or molten charging materials, and, as the reducing agent, natural gas, hydrocarbons, hydrogen, carbon monoxide and/or ammonia are introduced along with water vapor, oxygen, carbon dioxide and/or halogens or hydrogen halides.

Classes IPC  ?

• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés
• C22B 9/22 - Refusion des métaux en chauffant par énergie ondulatoire ou par rayonnement corpusculaire
• C22B 4/00 - Traitement électrothermique des minerais ou des produits métallurgiques pour obtenir des métaux ou des alliages

Abrégé

A method for reducing oxidic slags and dusts possibly loaded with organics uses an inductively heatable coke bed extending in the axial direction and having a temperature gradient. Reaction gas is sucked off in an axial region of the coke bed between two induction bodies and metal regulus and slag melt are tapped on the lower end. An inductively heatable shaft furnace chargeable with a lumpy coke bed for the reduction of metallic slags is made of an electrically insulating refractory material, has an adjustable temperature gradient includes at least one cooled induction body on the head side, a suction connection in an axial region where the prevailing temperature exceeds the condensation point of the substances to be removed, located below the cooled induction body on the head side, and an opening for tapping metal regulars and slag melt is provided on the lower end of the furnace.

Classes IPC  ?

• C21B 7/04 - Hauts fourneaux avec des réfractaires particuliers
• H05B 6/30 - Dispositions pour la refonte ou pour la fusion d'une zone

Abrégé

In a method for reducing metal-oxidic slags or glasses and/or degassing mineral melts, solid particles and/or melts are charged onto an at least partially inductively heated bed or column containing lumpy coke, and the reduced and/or degassed melt running off is collected. The device for reducing metal-oxidic slags or glasses and/or degassing mineral melts, which includes a charging opening (1) for solid or molten material and a tap opening (12) for the treated melt, is characterized by a tubular or channel-shaped housing (3) for the reception of lumpy coke (6), and a heating means surrounding the housing and including at least one induction coil (7, 8, 9).

Classes IPC  ?

• C22B 7/04 - Mise en œuvre des scories

Produits et services

(1) Electronic monitoring systems for electrical arc furnaces comprising computer hardware and computer software. (1) Installation and maintenance of computer hardware and software; technical support services, namely troubleshooting of graphite electrode performance problems.

Produits et services

Electronic monitoring systems for electrical arc furnaces comprising computer hardware and computer software Installation and maintenance of computer hardware Technical support services, namely, troubleshooting of graphite electrode performance problems in electrical arc furnaces and installation and maintenance of computer software

Produits et services

Electronic monitoring systems for electrical arc furnaces comprising computer hardware and computer software. Installation and maintenance of computer hardware and software. Technical support services, namely troubleshooting of graphite electrode performance problems.