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Matches 251 - 300 out of 10,041

Document Document Title
WO/2010/022703A3
The invention relates to a method for controlling the foamed slag in a stainless melt in an electric arc furnace. According to the invention, the height of the slag in the electric arc furnace is thermographically detected continuously ...  
WO/2010/022473A1
A method for producing a ferro-alloy, such as steel, in an electric arc furnace or other suitable metallurgical furnace is disclosed. The method comprises supplying a mixture of (a) a carbon-containing polymer that is capable of acting a...  
WO/2010/017812A1
The invention relates to a probe for continuously measuring exhaust gases on vessels for melting metals, in particular on electric furnaces for producing steel, which probe is characterized by a cylindrical body which can be attached by ...  
WO/2010/015243A1
The invention relates to a continuous scrap supply into an electric arc furnace (EAF), wherein a channel is provided which is connected at one end to an opening in the wall of the arc furnace and comprises at the other end of said channe...  
WO/2010/007875A1
Provided is an exhaust gas processing facility wherein dusts in exhaust gas from a furnace for producing molten metal are separated and collected to thereby enhance utilization of dusts, and control of internal pressure of the furnace fo...  
WO/2009/153075A1
The invention relates to an arc furnace (2) having a bay panel (26), a lower vessel (4) having a discharge opening disposed off-center, and a measuring device (20) having a measuring rod (24) attached to a measuring head (22) in an exten...  
WO/2009/142028A1
Provided is an inversely inclined full-lining structure of lining bricks, which can prevent the bricks from cracking and dropping so that it can perform a stable operation. The inversely inclined full-lining structure comprises a furnace...  
WO/2009/139488A1
A process for reforming high-temperature exhaust gas from a metallurgical furnace which comprises adding a reducing agent to the exhaust gas to reform the gas, wherein the addition of the reducing agent is initiated when the oxygen conce...  
WO/2009/129570A1
Disclosed herein are reactors and methods for forming alloys based on titanium-aluminium or alloys based on titanium-aluminium inter-metallic compounds. The reactor comprises a first section having an inlet through which precursor materi...  
WO/2009/131148A1
Disclosed is a process for producing molten metal employing a stationary-type non-tilting electric furnace that includes a raw material charging chute in one end of the furnace in the width direction which provides connection from above ...  
WO/2009/126052A1
An electric arc-resistance furnace, in particular for manufacturing of concentrated silicon alloys using the method of silicon dioxide and iron oxides reduction with carbon, which has a furnace tank filled with a charge blend and a gas c...  
WO/2009/119843A1
Provided is a direct reduction iron making equipment, in which matching between a continuously operated rotary hearth furnace and a batch operated melting furnace is improved and high productivity can be realized. A raw material introduc...  
WO/2009/120858A1
The present invention generally relates to an apparatus and method for use in metal melting, refining and/or other processing, such as, for example, steel making in an electric arc furnace (EAF), and more particularly, to improved burner...  
WO/2009/120858A8
The present invention generally relates to an apparatus and method for use in metal melting, refining and/or other processing, such as, for example, steel making in an electric arc furnace (EAF), and more particularly, to improved burner...  
WO/2009/109335A8
In an electric arc furnace, in which the electrode lift device (22, 23, 24) and the cover lift device (6) are disposed so that the cover lift (DH) and electrode lift (EH) add up, the weight load of the cover lift device is reduced by the...  
WO/2009/109335A1
In an electric arc furnace, in which the electrode lift device (22, 23, 24) and the cover lift device (6) are disposed so that the cover lift (DH) and electrode lift (EH) add up, the weight load of the cover lift device is reduced by the...  
WO/2009/103257A1
The invention relates to a method for the oxidation of combustible constituents in the exhaust gas of an arc furnace, wherein oxygen for the oxidation of the combustible constituents in the exhaust gas is injected into the exhaust gas th...  
WO/2009/095457A1
Control method for melting a metal charge in a furnace (10) comprising at least a hearth (11) containing the metal charge and a roof. The method provides that the hearth (11) is weighed by means of a plurality of weighing elements (16) d...  
WO/2009/095292A1
The invention relates to a method for operating an arc furnace (2) comprising at least one electrode (3a, 3b, 3c). A solid material fed to the arc furnace (1) is melted by means of an arc (1) formed by the at least one electrode (3a, 3b,...  
WO/2009/095293A3
The invention relates to a method for determining the size and shape value (M) for a solid material (S), in particular scrap metal, in an arc furnace (1). An electrode flow fed to an electrode (3a, 3b, 3c) for forming an arc furnace (L) ...  
WO/2009/087142A1
Process and apparatus for melting raw material in an electric arc furnace using a flame of variable direction, the apparatus comprising a burner and a lance whereby the lance outlet (31) opening and the burner outlet opening (21) are not...  
WO/2009/087183A1
The invention concerns cooling of the refractory lining in a smelting reduction vessel for producing hot metal. The vessel comprises an outer shell and an inner refractory lining for containing a bath of molten metal and a layer of slag ...  
WO/2009/076945A1
The invention relates to a device for extracting metals or metal compounds from a material containing the metal or the metal compound, with a furnace vessel (2), with a first inlet for supplying the material, a first outlet (10) for disc...  
WO/2009/077114A1
The invention relates to a device and a method for obtaining metals or metal compounds, particularly from a material comprising the metal or the metal compound, having a housing (2) having a first inlet (5) for feeding in the material, a...  
WO/2009/071406A1
The invention relates to a device for loading a furnace (2), particularly an electric arc furnace, with materials for the production of a metal melt, having at least one feed path (1) along which a first material and at least a second ma...  
WO/2009/071407A1
The invention relates to a cleaning device and a furnace (1), particularly an electric arc furnace, having a tapping channel (2) for discharging liquid metal from the furnace (1), a locking device (4) for opening and closing an opening (...  
WO/2009/073381A1
The apparatus system includes a carbothermic reactor and an electrical supply. The reactor includes a plurality of side-entering electrodes and a top-entering electrode. The electrical supply may be operable to supply multiphase current ...  
WO/2009/049777A1
The invention relates to an electric furnace (1) with a receiving chamber (2) for molten material (3), wherein at least one electrode (4, 5) protrudes into the receiving chamber (2), and wherein means (6) for introducing dust into the re...  
WO/2009/047624A1
A furnace plant including at least one furnace vessel comprising side walls, a bottom and a roof. At least one heater is configured to heat metal in the furnace vessel. A compartment includes sidewalls lined with refractory material. The...  
WO/2009/038139A1
A process for molten-iron production which comprises: charging a solid reduced iron obtained by reducing carbon composite iron oxide briquettes with heating, a carbon material, and a fluxing agent into a melting furnace of the arc heatin...  
WO/2009/038849A3
An improved staged combustion method useful with oxy-fuel combustion and in a furnace which contains a charge, wherein substoichiometric combustion and low velocity injection of fuel and primary and secondary oxidant are carried out in a...  
WO/2009/037649A3
A roof assembly for a furnace comprising at least one segment ( 12.j) comprising a single integral metal body (22) comprising copper. The body has opposed first and second faces (26 and 29) and the body defines channels (50) for a coolin...  
WO/2009/037649A2
A roof assembly for a furnace comprising at least one segment ( 12.j) comprising a single integral metal body (22) comprising copper. The body has opposed first and second faces (26 and 29) and the body defines channels (50) for a coolin...  
WO/2009/034586A1
The present invention relates to an injector (1) for an arc furnace (3). The injector comprises a head (10) suitable to face into the furnace and a body (20) suitable to support the head. The head and body are manufactured separately fro...  
WO/2009/028416A1
Disclosed is an iron bath type smelting reduction furnace having a side-wall lining made of two or more refractory materials, wherein each of the refractory materials is a MgO-C brick containing carbon in an amount of not less than 1 mas...  
WO/2009/019958A1
A method of suppressing slag forming in a continuous melting furnace, in which a molten metal in its stable state can be continuously produced by securely suppressing any slag forming through seizure of the state of slag forming in a con...  
WO/2009/018796A1
2.1 The invention relates to a device for slag-free tapping or for transferring a melt from a metallurgical vessel (1, 2, 3) into a different metallurgical vessel having a siphon-like, inverted U-shaped configuration, wherein the siphon ...  
WO/2009/016146A1
The invention relates to a cover (1) for a furnace (10) for receiving molten material (S), particularly metal. According to the invention, the cover comprises at least one layer (4, 4'') formed of a material having a heat transfer coeffi...  
WO/2009/010266A2
In exactly the same manner as larger furnaces, electric reducing furnaces which can be used for test purposes during ferroalloy and nonferrous processes and in a simplified design as industrial submerged arc furnaces require complete eng...  
WO/2009/010266A3
In exactly the same manner as larger furnaces, electric reducing furnaces which can be used for test purposes during ferroalloy and nonferrous processes and in a simplified design as industrial submerged arc furnaces require complete eng...  
WO/2009/006652A3
To keep an aluminium melt hot in a hearth furnace or to remelt aluminium scrap in a hearth furnace, at least one burner (15) is provided. The burner (15) is arranged in a burner dome (1) which is located on the furnace roof (7). The burn...  
WO/2008/154688A1
An apparatus for injecting solid material into a vessel, such as a direct smelting vessel. The apparatus has a central tube comprising: a core tube assembly that defines a passageway for solid material, the core tube assembly having at l...  
WO/2008/154689A1
A lance for injecting a solid material into a vessel, such as a direct smelting vessel for producing molten iron, is disclosed. The lance has a core tube assembly comprising a passageway for solid material. The core tube assembly has an ...  
WO/2008/147250A3
The invention relates to heat-and-power engineering, particularly, to the devices for solid fuel firing, processing of thermal and thermal condensing power plants ash wastes (AW) in a melted slag, bubbled by oxygenated gas, and getting r...  
WO/2008/136027A1
The present invention relates to a cooled box (1) for positioning nozzles (30) in arc furnaqes (2) . The box comprises a tubular body (10) which, in turnf comprises a plurality of ingots (20) that are mutually fastened and arranged such ...  
WO/2008/121630A1
An apparatus for melting an electrically conductive metallic material includes a vacuum chamber and a hearth disposed in the vacuum chamber. At least one wire-discharge ion plasma electron emitter is disposed in or adjacent the vacuum ch...  
WO/2008/103402A2
A quiescent melt handling system includes a holding furnace (2, 120, 320 - 720) for a molten metal melt. The holding furnace has a relatively large surface area and a relatively shallow depth, having a width to depth ratio in the range o...  
WO/2008/103402A3
A quiescent melt handling system includes a holding furnace (2, 120, 320 - 720) for a molten metal melt. The holding furnace has a relatively large surface area and a relatively shallow depth, having a width to depth ratio in the range o...  
WO/2008/093042A1
The invention relates to a mixing chamber (10) for use in a metal transfer vessel (for example, a tundish used in steel manufacture or a holding furnace used in aluminium manufacture). The mixing chamber comprises a base with a first ser...  
WO/2008/058608A1
The invention relates to a metallurgical vessel (1), in particular an arc furnace, having a holding container (2) for metal melt and having a lid (3), by means of which the holding container (2) can be at least partially covered, wherein...  

Matches 251 - 300 out of 10,041