Abstract

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.

IPC Classes  ?

• F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases
• F27D 1/10 - Monolithic liningsSupports therefor
• C22B 7/04 - Working-up slag
• C22B 5/10 - Dry processes by solid carbonaceous reducing agents
• C22B 7/02 - Working-up flue dust
• F27B 1/08 - Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge
• F27B 1/10 - Details, accessories or equipment specially adapted for furnaces of these types
• F27D 11/06 - Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

Abstract

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

IPC Classes  ?

• C04B 35/52 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
• C04B 35/532 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder

Abstract

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

IPC Classes  ?

• C04B 35/52 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
• C04B 35/532 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder

Abstract

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.

IPC Classes  ?

• C08K 7/06 - Elements
• C04B 35/52 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
• C04B 35/532 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
• C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
• C04B 35/83 - Carbon fibres in a carbon matrix
• D01F 9/14 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments
• H05B 7/085 - Electrodes non-consumable mainly consisting of carbon
• C01B 32/184 - Preparation

Abstract

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.

IPC Classes  ?

• G01N 5/00 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
• C21C 5/52 - Manufacture of steel in electric furnaces
• F27D 11/10 - Disposition of electrodes
• H05B 7/10 - Mountings, supports, terminals, or arrangements for feeding or guiding electrodes
• B66C 13/16 - Applications of indicating, registering, or weighing devices
• G01G 19/14 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing suspended loads
• F27D 19/00 - Arrangement of controlling devices
• G01G 3/14 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
• F27D 11/00 - Arrangement of elements for electric heating in or on furnaces

Abstract

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.

IPC Classes  ?

• C21C 5/52 - Manufacture of steel in electric furnaces
• B66C 1/40 - Crane hooks formed or fitted with load-measuring or indicating devices
• F27D 11/10 - Disposition of electrodes
• G01G 19/14 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing suspended loads
• H05B 7/10 - Mountings, supports, terminals, or arrangements for feeding or guiding electrodes

Goods & 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.

Abstract

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.

IPC Classes  ?

• C22B 7/02 - Working-up flue dust
• C22B 7/04 - Working-up slag

Abstract

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.

IPC Classes  ?

• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 9/22 - Remelting metals with heating by wave energy or particle radiation
• C22B 4/00 - Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys

Abstract

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.

IPC Classes  ?

• C21B 7/04 - Blast furnaces with special refractories
• H05B 6/30 - Arrangements for remelting or zone melting

Abstract

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).

IPC Classes  ?

• C22B 7/04 - Working-up slag

Goods & 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.

Goods & 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

Goods & 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.