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WO/1981/003342A1 |
A metallurgical furnace (1 to 15, in Figures 1 & 2) for and a process of melting, refining and processing metals and for the reduction of ores thereof by the non-stoichiometric combustion of a fluid fuel and a combustion-supporting gas w...
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WO/1981/002339A1 |
A substantially spherically-shaped electric melting furnace (22) includes a carbon-lined crucible (80). The interior of said crucible is sealed from the atmosphere outside the crucible and a vacuum pump (68) and venturi device (72) contr...
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WO/1981/001862A1 |
The metallurgical melting and refining apparatus allows the treatment of scrap, sponge iron, solid or liquid pig iron in any mixture ratio and using as a power source coal, fuel oil, gas or electricity. To this effect and in order to red...
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WO/1981/000758A1 |
Cooling element for industrial ovens, comprised of a plurality of pipes (1) extending parallel between each other. This element is arranged in the wall and/or the cover of the oven, preferably an electric arc oven, so that it forms a por...
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WO/1980/001834A1 |
A rotating tower of an electric oven is located in order to rotate about a pivot, on the upper plate (23) of the platform and rests by means of wheels on a rail (18) having the form of an arc of a circle, supported by a layer of a suppor...
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WO/1979/000550A1 |
Guide troughs for leading molten products tapped from blast furnaces or electric furnaces or the like. A lengthy trough body (1), formed in one block with monolithic refractories, is provided with hook-engaging means in order for the bod...
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JP7459624B2 |
The present invention relates to a glass melting furnace, a glass manufacturing apparatus, and a glass manufacturing method. The glass melting furnace having a crown structure is provided with a refractory layer (25) and a heat-resistant...
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JP2024042564A |
An object of the present invention is to provide a system for estimating the amount of slag flowing out of an electric furnace, which is a method that allows continuous operation and is capable of estimating the amount of slag flowing ou...
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JP2024513824A |
A power supply device (10) for a DC user equipment (11) includes a power supply means (12) for supplying a commercial power supply voltage and a commercial power supply current, and a static power supply means (12) for supplying a commer...
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JP7456762B2 |
To provide a rotary hearth furnace capable of improving the productivity of products.A rotary hearth furnace comprises an annular furnace body 11 having a burner, a rotary hearth 12 rotating the inside of the furnace body 11 and an exhau...
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JP2024040648A |
An object of the present invention is to provide a repair method for an electric furnace that can reduce the amount of refractory waste when repairing the electric furnace. [Solution] In an electric furnace for melting an iron source, wh...
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JP7454690B2 |
A pump system for a metal furnace includes a tank and a magnetic stirrer. The tank includes a tank chamber that is configured to receive a fluid, such as a molten material. The tank is positioned above magnetic stirrer and such that the ...
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JP2024509852A |
Graphite-containing electrodes are described that include a zirconium-based coating that retards the loss of material from the electrode when used at high temperatures, for example in arc furnaces at 1000-2000°C. The zirconium-based coa...
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JP7437097B1 |
An object of the present invention is to provide a heater for an electric melting furnace that is used with a cylindrical heating element, has higher heat insulation properties, and is capable of more efficiently transmitting heat to mol...
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JP7431167B2 |
A metal scrap submergence device comprising an open top chamber including walls of a heat resistant material, an inlet positioned in the chamber, an outlet positioned in the base of the chamber, and a ramp adjacent the side wall of the c...
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JP7430709B2 |
Apparatuses for interfacing with an electrode provided with a melting furnace including a vessel and an electrode. In some embodiments, a support assembly (50) supports the electrode outside of the vessel, and includes a cart (102) or si...
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JP7428411B2 |
Metallurgical assemblies and systems according to the present technology may include a refractory vessel including sides and a base. The base may define a plurality of apertures centrally located within the base. The sides and the base m...
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JP7428796B2 |
The invention concerns a process for detecting water leaks in smelting furnaces (2; 4) or in metal or alloy treatment plants, comprising the following steps: (i) providing at least one smelting furnace (2; 4), or at least one metal or al...
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JP7428312B2 |
To provide a fitting structure of an immersion heater for molten metal heating easily exchangeable while preventing the adhesion of oxides.A fitting structure which, in a melting holding furnace 10, is immersed into a molten metal M used...
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JP2024011002A |
[Problem] To provide an electric furnace with excellent heating efficiency and a long fan life. [Solution] The opening and closing states of the first on-off valve 21, the fourth on-off valve 24, and the fifth on-off valve 25 are reverse...
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JP2024002838A |
[assignment] In the melting furnace 1 that melts metal, the heat source 1 is turned on and off intermittently to ensure the quality of the resulting product, maintain heating conditions that match the on-site conditions, and improve ther...
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JP2024000793A |
[Problem] To suppress wire breakage with high output and efficiently transmit heat to molten metal. [Solution] An electric heater 100 that heats molten metal M used for melting or temperature maintenance in a melting furnace 200 or a mel...
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JP2024000822A |
An object of the present invention is to provide a concentrate burner that can introduce smelting raw materials from a lower end opening of a concentrate chute in a circumferentially uniformly dispersed state. [Solution] A roughly cylind...
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JP2024000791A |
[Problem] To suppress wire breakage with high output and efficiently transmit heat to molten metal. [Solution] In a melting furnace 200 or a melting and holding furnace, electric heaters 100 that heat molten metal M used for melting or t...
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JP2023182946A |
To provide an AC arc furnace capable of dissolving unevenness of a temperature distribution in a furnace and melting scrap in a short time.An AC arc furnace comprises: plural power fixed electrodes disposed according to respective phases...
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JP2023182246A |
To provide an odor treatment device capable of preventing release of an odor compound to the atmosphere.The odor treatment device comprises: a dissolving chamber 11; a preheating chamber 12 connected to the upper part of the dissolving c...
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JP2023181764A |
To provide a plant reduced in environmental load, and a production method of glass and hydrogen.A plant 1 producing glass and hydrogen has a glass melting furnace 2 melting glass raw material by combustion heat of fuel, and forming molte...
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JP2023181282A |
To provide an apparatus for gasifying and vitrifying waste which comprises a plasma arc furnace having two movable graphite electrodes.A furnace comprises air-cooled bottom electrodes configured to transfer current through a slag melt. T...
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JP2023180957A |
To provide a technique for efficiently dissolving an iron source comprising reduced iron when the iron source is dissolved using a DC arc furnace.A method for melting an iron source comprising reduced iron using a DC arc furnace comprise...
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JP7400784B2 |
Provided is a technology for executing stable processing by extending the furnace refractory life in an electric furnace for heating and melting a raw material containing a valuable metal. The present invention provides an electric fur...
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JP2023551644A |
Apparatus for melting metal-containing mixtures, in particular noble metal-containing molten materials, in particular comprising a vacuum melting furnace with plasma jet melting means, in which the heated molten material containing the m...
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JP7392910B2 |
To vary the capacity of a melting tank that a glass melting device comprises without stopping operation thereof.A glass melting device 1 which comprises a melting tank 4 melting a glass raw material 2 to generate molten glass 3 comprises...
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JP7391219B2 |
A plant for melting and/or heating metal material includes a furnace, electrical energy feed means and an electric power apparatus connected between the feed means and the furnace; and a corresponding method to power the melting and/or h...
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JP7388563B2 |
Provided is a technique for melting a cold iron source by using a heat source with reduced CO2 emissions. An electric furnace is provided with a burner directed toward furnace contents. The burner includes a powder-feeding pipe, a jet ho...
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JP2023167795A |
To provide an electrode lifting control device which optimizes the efficiency of dissolution of scrap.An electrode lifting control device comprises: impedance deviation calculation means which calculates an impedance deviation by subtrac...
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JP7382495B2 |
A measurement system is provided for predicting a future status of a refractory lining that is lined over an inner surface of an outer wall of a metallurgical vessel and exposed to a heat during which the refractory lining is exposed to ...
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JP7377633B2 |
The present invention comprises: a furnace into which iron ore is introduced; a furnace floor electrode provided on the furnace floor inside the furnace; and a plurality of upper electrodes that are provided above the furnace floor elect...
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JP7376080B2 |
To enable a configuration regarding roles of a melting chamber in a melting holding furnace, with which selection can be made between dual roles of melting a treatment material and circulating molten metal and a role mainly of circulatin...
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JP7374186B2 |
Apparatus and methods are disclosed for forming a glass article in which molten glass is heated in a refractory vessel defining a space interior to the refractory vessel. A precious metal component is exposed to the interior space. The a...
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JP2023546264A |
The furnace coupling and conditioning system 14 includes a frame 18 outside the walls 16.1 and 16.2 of the furnace 12. a) a first actuator 22 configured to exert an adjustable repulsion force between the frame 18 and the furnace wall; an...
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JP7363076B2 |
The utility model provides a dust hood and an induction furnace. The dust collecting hood comprises a hood part which covers an opening part of an induction furnace main body in a planar view; the dust collection pipeline is arranged on ...
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JP2023542732A |
The device (10) for feeding and preheating the metal charge (S) towards the melting furnace (110) of the melting plant (100) comprises at least one conveyor channel (S) for the metal charge (S). 11), at least one hood (14) arranged above...
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JP7357417B1 |
An object of the present invention is to provide an aluminum melting furnace that can prevent unnecessary decreases in the temperature of molten metal in the aluminum melting furnace, reduce the load on an electric heater, and reduce the...
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JP2023142954A |
To provide a metal melting holding furnace capable of evading the enlargement of a furnace body and attaining the fuel consumption reduction of a burner while enabling the melting of a suitable melting material and the thermal insulation...
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JP7357065B2 |
A gas injection system includes a tubular wall 3 capable of being thermally stressed and having a proximal extremity and a distal extremity 11, at the distal extremity, at least one extremity opening through which at least one gas is pro...
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JP2023139359A |
To provide a temperature raising method capable of shortening a temperature raising time without generating local overheating in a furnace, by smoothly igniting a shaft burner, and stabilizing a burner flame even after ignition of the sh...
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JP7349305B2 |
To provide a contact shoe for an electric furnace capable of suppressing abnormal discharge between the contact shoe for an electric furnace and an electrode.An internal surface 11S of a contact shoe 11 comprises a plurality of contact s...
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JP7347675B2 |
To clearly observe the inside of a furnace where an object is heated by a burner. The burner includes: a lens; an imaging device; and a multiple pipe structure including: an inner pipe that surrounds the lens; an outer pipe that surround...
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JP7345643B2 |
A method for electromagnetic stirring of liquid metal in a continuous charge electric arc furnace, in which there are positioned a first electromagnetic field along a first axis of electromagnetic stirring and a second electromagnetic fi...
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JP7343833B2 |
To provide a method enabling an estimation of a mineral concentrate distribution inside a burner cone.A mineral concentrate distribution estimation method is configured for an inside of a burner cone installed at an upper end of a reacti...
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