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WO/2006/089897A1 |
Conveyor apparatus (10) for conveying a metal charge towards a container (15) of a melting plant (H)/ comprising at least an oblong bearing structure (20), on which a conveyor channel (21) is fixed and on which a vibration device (32) is...
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WO/2006/089870A2 |
Melting plant (10) and relative method for the production of steel, comprising a melting furnace (11) fed laterally with a metal charge conveyed towards the melting furnace (11) by means of a conveyor (12) disposed at least partly inside...
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WO/2006/089971A2 |
An electric arc furnace (10) has an outer shell (12) and an inner refractory lining (24). During its operation the electric arc furnace (10) contains a bath (28) of molten metal which has a minimum and a maximum operational level (32). A...
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WO/2006/087212A2 |
The invention concerns a furnace system for melting down metallic or metal-containing feed material in which it is possible to pivotably place on a vessel bottom part (14, 15) of a furnace (A, B) an electrode arrangement with cover (6) f...
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WO/2006/085789A1 |
The invention relates to metallurgy, in particular to a steel production in arc furnaces. The inventive method consists, in lifting, prior to the container emptying, the level of a metal input into an outflow opening, in maintaining said...
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WO/2006/080269A1 |
This invention provides an electron beam melting apparatus and a melting method that, in producing an ingot by dissolving a metal with an electron beam, can suppress the occurrence of new impurities in the ingot production, are less like...
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WO/2006/072363A1 |
The invention relates to a hearth furnace comprising a burner for melting metals, especially non-ferrous metals, and an oxygen lance (25) for the post-oxidation of carbonisation gases.
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WO/2006/061530A2 |
The invention concerns a method for melting a composition of raw materials including introducing the composition in an oven to form a layer (2) at the surface of the molten pool (4). An oxycombustion burner (10) is arranged above the poo...
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WO/2006/047857A1 |
A regenerative burner device for a furnace and a method of removing contaminants from such a device. The burner device includes a burner for introducing heat and waste gas into a furnace during ignition when supplied with fuel and a comb...
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WO/2006/040394A1 |
The object of the invention is a metallurgical furnace (1), the wall of which comprises an external steel structure (5) and a refractory lining (3) inside the steel structure, the lining (3) consisting of at least one course of bricks (4...
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WO/2006/040393A1 |
The invention relates to the structure of the bottom area of a metallurgical furnace (1), comprising a bottom part (2) and a wall (3), both of which include a steel structure (6, 21) forming the external surface, and a refractory inner b...
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WO/2006/027413A1 |
The invention relates to a device for distributing hot feed into the feeding silos of a metallurgical furnace. The device comprises an inlet pipe for receiving the feed from the outlet of a previous process stage. A batching pipe is fitt...
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WO/2006/021515A1 |
The invention relates to a method for operating an electric-arc furnace comprising at least one electrode and one tapping method step. At the beginning of the tapping step, the energy supply to the at least one electrode (2) of the elect...
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WO/2006/016201A1 |
The invention relates to a door closure device for an electric furnace, which is designed to seal same. The invention comprises a conical or prismatic metallic closure which is cooled with water and which is positioned in a same-shaped h...
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WO/2005/118889A2 |
The invention relates to a tapping tube for a metal fusion vessel, for example, a converter or an arc furnace.
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WO/2005/116558A1 |
A binding system for applying a vertical compressive force to the refractory walls of a rectangular or circular furnace comprises a compressive member engaging a laterally extending surface of the furnace wall and a support member to whi...
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WO/2005/106048A2 |
A heat exchanger system (44) for iron making furnaces and their supporting exhaust and cooling systems including at least on panel (1-4) of sinuously winding piping (50) having an inlet (56) and outlet (58) with attached input (84) and o...
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WO/2005/103305A1 |
Metallurgical processing installation comprising a metallurgical vessel lined internally with water cooled panels. A vessel access tower (61) fits around vessel (11) and supports a coolant flow system (62) to provide for flow of cooling ...
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WO/2005/090613A1 |
Method of constructing and installing a direct smelting unit comprising a smelting vessel (11). The vessel is prefabricated off site in three modules (11A, 11B, 11C) which are then transported to the installation site where they are hois...
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WO/2005/085735A1 |
A device for the intake, processing and offtake of gases in an arc furnace conceived of a housing (1) with openings (5) through which electrodes (6) are positioned and an opening (11) to which an exhaust duct (12) is connected, said duct...
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WO/2005/085732A1 |
The invention relates to a method for processing aluminium in a furnace consisting in introducing an aluminium-containing material and possibly one or several types of salt into the furnace, melting said material by heating with the aid ...
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WO/2005/075688A1 |
Cooling panels (31) are attached to the shell (11) of a metallurgical vessel to form an internal lining of the shell. Each panel (31) comprises a coolant flow tube (36) bent to form inner and outer panel sections (37, 38) of zig-zag form...
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WO/2005/071335A2 |
The invention provides for a pressure ring assembly [10] suitable for use in an electric arc furnace, wherein the pressure ring assembly [10] comprises at least two pressure ring segments [22] engaging each other, at least one contact sh...
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WO/2005/052196A2 |
Method and plant for pre-heating, transforming and melting a metal charge comprising metal scrap, in an electric arc furnace (12) associated with a tunnel (11) to transport, pre-heat and discharge the scrap. The furnace (12) comprises a ...
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WO/2005/052481A1 |
The aim of the invention is to allow for the troublefree charging of a crucible with scrap metal with different composition, such as light scrap and heavy scrap, from a lower outlet opening of a shaft-type charging device (1) by means of...
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WO/2005/045341A1 |
A plurality of rails (13) are laid at the opposite end parts of an electric melting furnace (1), an arbitrary number of electrodes (2, 2A) are secured to two sets of electrode supporting bases (11) on these rails, and the movable shaft (...
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WO/2005/040433A2 |
The present invention relates to a direct smelting plant and a direct smelting process for producing molten metal from a metalliferous feed material, such as ores, partly reduced ores, and metal-containing waste streams, the latter of wh...
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WO/2005/035797A1 |
The invention relates to a method for collecting and treating reaction gases from a production plant (1) for molten metal. Substances used, containing metal, are introduced into a metallurgic container in a solid of liquid form and are c...
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WO/2005/033602A1 |
An annular chamber furnace consisting of a plurality of chambers which are arranged successively or close to one another. Each chamber comprises a number of parallel heating walls guiding process gas. Said heating walls are disposed betw...
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WO/2005/031234A1 |
The invention relates to an industrial oven which is used to melt non-ferrous metals and for gas treating non-ferrous metals.
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WO/2005/025774A2 |
A method and apparatus for optimized mixing in a common hearth in a plasma furnace. The apparatus provides a main hearth, a plurality of optional refining hearths, and a plurality of casting molds or direct molds whereby the refining hea...
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WO/2005/022062A1 |
The invention relates to an electric reducing furnace (1) for carrying out reduction processes, particularly for reducing slag in order to recover metallic constituents. The electric reducing furnace operates with electrical energy that ...
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WO/2005/022060A2 |
The electrode arrangement uses vertically oriented electrodes (4) with side wall contacts (7) for an electrothermic smelting furnace (1) for aluminum production. The side wall contacts (7) are radially moveable into the furnace (1) to co...
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WO/2005/005900A2 |
A burner and oxygen-injection device (35) for a melting furnace (30) comprising one or more injectors (3, 3', 3') consisting of an internal pipe (1) and a head (2), which is fixed to one end of said hollow body and is provided with a noz...
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WO/2004/113576A2 |
The invention relates to a nozzle device and to an associated metallurgical melting pot for introducing fluid media into a melt. The nozzle device is configured, at least at one end, to permit the connection of an axially fed nozzle devi...
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WO/2004/111275A1 |
The invention relates to a cooling element (1) to be used in the structure of a pyrometallurgical reactor, such as a furnace, employed in metal processes, said cooling element comprising a housing (2) made of copper or copper alloy, prov...
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WO/2004/106831A1 |
In order to cool a process container (1), several cooling elements (5,5',5') are fixed to the outer side of a metal container wall (2) by means of threaded bolts (21) that are welded to the container wall (2) in several places. The clamp...
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WO/2004/106830A2 |
Slag retention means for protecting a water-cooled furnace element by means of an elongate metal member (425) which extends from inside the furnace, through the furnace wall and into the cooling water of the furnace element so that the i...
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WO/2004/099453A1 |
The invention relates to a method for the treatment of aluminum in a furnace, wherein a material containing aluminum and optionally one or several salts is introduced into the furnace, the material is melted by adding heat with the aid o...
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WO/2004/083756A1 |
A high frequency inductive melting furnace system comprises: an input transformer for transforming voltage fed from a high frequency power supply; a rectifier, connected across the output of the input transformer, for rectifying AC volta...
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WO/2004/078385A1 |
An apparatus for treating molten metal includes a treatment vessel for holding molten metal and a removable cover or hood for the vessel. Sealing means are provided between the cover and the vessel to provide a gas tight treatment zone. ...
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WO/2004/074523A2 |
A metal melting closed furnace which includes a main chamber (22), a circulation well (28) connected to the main chamber (22) by a communications passageway (32) and a vortex well (84) having an exit outlet for molten metal into the main...
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WO/2004/067210A1 |
A method of dispensing or pouring molten metal, e.g., aluminum, from a container or vessel, the flow rate controlled to minimize splashing of the molten aluminum exiting the container, the method comprising the steps of providing a conta...
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WO/2004/065643A1 |
A method and apparatus for increasing spatial energy coverage in a furnace is provided. The apparatus of the present invention includes a panel positioned at least partially into a sidewall of a furnace. The panel includes a plurality of...
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WO/2004/063653A1 |
Plant for the melting of primary and secondary aluminium, provided with a rotating furnace, internally equipped with a spiral element (11), that realizes the melting of the aluminium not using a salty bath, in association with a channel ...
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WO/2004/063651A1 |
A graphite electrode that can be effectively prevented from oxidizing and consuming during operation of an electric steel furnace, so that specific consumption of the electrode can be improved. The graphite electrode is used in an electr...
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WO/2004/058431A2 |
A method and apparatus for optimizing melting of titanium for processing into ingots or end products. The apparatus provides a main hearth (56), a plurality of optional refining hearths, and a plurality of casting molds (58a, 58b) or dir...
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WO/2004/056505A1 |
The invention relates to a gas flushing device for metallurgical melting pots, having the following construction: a porous plug is arranged in an upper cylindrical housing at the gas outlet end thereof and in a lower cylindrical housing ...
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WO/2004/057042A1 |
A method for manufacturing molten iron including producing reducing material of mixed hot fine direct reduced iron and calcined additives, the reducing material being produced from multiple fluidized beds; charging the reducing material ...
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WO/2004/048869A1 |
A material feeding apparatus for a rotary hearth furnace capable of uniformly and dispersedly feeding agglomerated materials, which tends to be pulverized, deformed, or adhered to each other into the rotary hearth furnace by using a flat...
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