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WO/2024/029807A1 |
The present invention relates to molten iron manufacturing equipment and a molten iron manufacturing method, and, more specifically, to molten iron manufacturing equipment and a molten iron manufacturing method, which manufacture reduced...
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WO/2024/023565A1 |
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said D...
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WO/2024/023564A1 |
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said D...
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WO/2024/023570A1 |
The invention deals with a method for manufacturing pig iron in a smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product t...
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WO/2024/023566A1 |
The invention deals with a method for manufacturing pig iron in a smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product t...
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WO/2024/023660A1 |
The invention deals with a method of manufacturing molten pig iron into an electrical smelting unit 13. The method comprises the following successive steps: - providing a directly reduced iron product 12, - feeding the DRI product 12 int...
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WO/2024/023563A1 |
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said D...
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WO/2024/023571A1 |
The invention deals with a method for manufacturing pig iron in a smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product t...
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WO/2024/023560A1 |
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said D...
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WO/2024/023568A1 |
The invention deals with a method of manufacturing molten pig iron into an electrical smelting unit. The method comprises the following successive steps: - providing a directly reduced iron product 12, - feeding the DRI product 12 into t...
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WO/2024/023559A1 |
The invention deals with a method for manufacturing molten pig iron into an electrical smelting furnace 13, said method comprising the following successive steps: - providing a directly reduced iron product 12, - providing a carbon conta...
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WO/2024/023567A1 |
The invention deals with a method of manufacturing molten pig iron into an electrical smelting unit 13. The method comprises the following successive steps: - providing a directly reduced iron product 12, - feeding the DRI product 12 int...
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WO/2024/023569A1 |
The invention deals with a method of manufacturing molten pig iron into an electrical smelting unit 13. The method comprises the following successive steps: - providing a directly reduced iron product 12, - feeding the DRI product 12 int...
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WO/2024/023561A1 |
The invention deals with a method for manufacturing molten pig iron into an electrical smelting furnace 13, said method comprising the following successive steps: - providing a directly reduced iron product 12, - providing a carbon and i...
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WO/2024/023562A1 |
The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said D...
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WO/2024/023558A1 |
The invention deals with a method for manufacturing pig iron in a smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product t...
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WO/2024/022989A1 |
The invention relates to a method for producing an iron melt (1) in an electric fuser (10).
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WO/2024/018074A1 |
A manufacturing method of accessories by basic refractory in steel tundish includes steps of preparation, mixing, mold filling and forming. The mixing step is to mix dead burned magnesian sand, olivine sand, and bonding agent that are pr...
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WO/2024/020575A1 |
Described are steel production systems and methods, and a furnace and methods of using such furnace to produce steel. In some embodiments, the furnace may include a shell having a top portion and a bottom portion. There may be a roof con...
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WO/2024/013268A1 |
The invention provides a tuyere that comprises a conical hollow tuyere body with an inner surface and an outer surface, the tuyere extending along a first axis from an inlet end to an opposite outlet end, the tuyere body having a tuyere ...
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WO/2024/014126A1 |
A control method for a blast furnace according to the present invention comprises: a step for estimating the temperature distribution of a residual solidified layer at the time of restarting the blast furnace using a temperature distribu...
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WO/2024/013653A1 |
A method for the direct reduction of iron oxide-based material for the production of steel, iron sponge or cast iron is described, comprising the steps of: a) producing, by forming at a temperature not exceeding 45°C, briquettes made of...
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WO/2024/010502A1 |
The present disclosure relates to an arrangement and process for charging iron ore (207) to a direct reduction shaft (211), as well as an arrangement and process for discharging sponge iron (208) from a direct reduction shaft. The proces...
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WO/2024/010474A1 |
A method for the recovery of metals from metallurgical waste, especially zinc and iron from dusts is characterized in that the zinc-bearing dusts are granulated with the addition of a reducing agent (coal dust, carboniser, fly ash) in an...
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WO/2023/247832A1 |
Provided herein is a method of treating and upgrading industrial furnace by-products, such as steelmaking slag and incinerator bottom ash (IBA) into valuable products, the method comprising the steps (a) providing the industrial furnace ...
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WO/2023/247627A1 |
The present invention relates to a method for reducing metal oxide (M1) by means of a reducing gas or gas mixture, said method having the following method steps: - feeding (V1) at least one starting material into a reactor (40); - genera...
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WO/2023/245903A1 |
A blast furnace tuyere temperature alarm system based on infrared thermal imagers, comprising infrared thermal imagers (3), an image processing server (4), a display (5), and a voice alarm module (6). Multiple infrared thermal imagers (3...
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WO/2023/249031A1 |
In the present invention, an input unit 101 inputs elastic waves 21 to a furnace wall 11 that includes a refractory brick 16 which is a refractory material. A reception unit 102 receives reflected waves 22 of the elastic waves 21. A cont...
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WO/2023/243337A1 |
The present invention provides: a technology for producing a metal by means of the reduction of a metal compound, while suppressing a carbon dioxide gas to be discharged into the environment as much as possible, the technology being capa...
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WO/2023/240753A1 |
A low-carbon smelting system and method based on a blast furnace-steelmaking furnace process coupled carbon cycle. The smelting system comprises a blast furnace (100), a steelmaking furnace (200), a CO concentration monitoring device (30...
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WO/2023/244479A1 |
An improved direct smelting vessel comprising a smelt reduction vessel (SRV) and optionally a cyclone converter furnace (CCF). The SRV provides means for promoting metal mixing at a zone below a slag layer adjacent to a vessel wall of th...
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WO/2023/237601A1 |
The present invention relates to a process for the production of syngas by thermal catalytic decomposition of methanol produced from a mixture comprising at least a carbon oxide (CO and/or CO2) and hydrogen.
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WO/2023/231126A1 |
A Laval nozzle-based supersonic hydrogen injection system, and a control method therefor. The Laval nozzle (10) introduces hydrogen at supersonic speed into a blast furnace via a spray gun, such that spray gun burn loss resulting from ex...
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WO/2023/234498A1 |
The present invention relates to an injection system of an electric furnace and an electric furnace including same, and may comprise: a powder carbon spray nozzle for spraying a transfer fluid containing powder carbon to an electric furn...
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WO/2023/231183A1 |
An environment-friendly hot-splashed slag treatment system, comprising a hot-splashed slag box (11), a tipping type top cover (12) rotatably mounted at the top of the hot-splashed slag box (11), and a top cover driving mechanism for driv...
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WO/2023/234499A1 |
The present invention relates to an electric furnace having double melting furnaces. The electric furnace may comprise: a first upper cell forming a first upper space of a first melting furnace in which a first iron source is inputted an...
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WO/2023/231125A1 |
A small sleeve apparatus for a hydrogen injection tuyere couples a hydrogen injection channel into a small sleeve of a source tuyere, operation is convenient, additional equipment does not need to be arranged in a tuyere area, the instal...
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WO/2023/233038A1 |
Embodiments of the invention concerns an installation for applying a lining composition in the form of dry particulate material (2p) to form a working lining (2s) onto a surface of a cavity in a tundish (1) wherein, in a space reference ...
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WO/2023/233957A1 |
A blast-furnace operation method and a blast furnace are proposed with which it is possible to smoothly reoperate a blast furnace by preventing the coke from decreasing in diameter due to combustion and consumption and preventing the mel...
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WO/2023/229517A1 |
An arrangement for producing sponge iron, comprising: a direct reduction shaft (1), a device (2) for charging iron ore into the direct reduction shaft (1), a device (3) for extracting sponge iron from the direction reduction shaft (1), a...
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WO/2023/229515A1 |
An arrangement for a continuous production of sponge iron from iron ore, comprising a direct reduction shaft (1) and an arrangement (24, 25, 26) for introducing a pressurised, heated hydrogen-rich reduction gas into the direct reduction ...
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WO/2023/222149A1 |
The invention relates to a method for detecting a water leak in a metallurgical melting furnace. The invention also relates to a device for carrying out the method. In the process, a water leak is detected in a cooling tube or a water tu...
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WO/2023/222423A1 |
A stave protection system for a metallurgical furnace comprises: a stave (100) comprising upper and lower ribs (114) projecting forwardly from a front face (102) of the stave (100) and spaced apart from each other so as to define a trans...
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WO/2023/224541A1 |
Method for producing direct reduced metal material (142), comprising the steps: a) charging material into a closed furnace space (120); b) filling the furnace space with heated inert gas, heating the material; c) providing a reducing gas...
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WO/2023/223724A1 |
Proposed is a blast furnace operation method that can reduce, to a greater extent than with conventional methods, the amount of melt remaining within a furnace before stopping blasting, without damaging graphite bricks. The present inven...
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WO/2023/214563A1 |
[Problem] To provide a production device for a carbon material, a production system for a carbon material, and a production method for a carbon material that make it possible to efficiently produce a carbon material from carbon dioxide. ...
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WO/2023/213949A1 |
The invention relates to a method for reducing a metal oxide-containing material. A reduction gas which at least contains hydrogen is supplied to a reduction reactor (3), and a hydrogen-containing top gas is discharged from the reduction...
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WO/2023/214070A1 |
The invention relates to a hydrogen plasma smelting reduction furnace (1) for reducing a metal oxide, more particularly for reducing iron oxide, comprising: - a reaction chamber (2), - a counter electrode disposed in the reaction chamber...
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WO/2023/211836A1 |
A hydrocarbon feed stream is exposed to heat in an absence of oxygen to the convert the hydrocarbon feed stream into a solids stream and a gas stream. The gas stream is separated into an exhaust gas stream and a first hydrogen stream. Th...
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WO/2023/205911A1 |
The present invention relates to a smart passage opening system with thermal lances for pyrometallurgical process furnaces or reactors, which autonomously controls and adjusts the variables of the opening process to obtain the maximum ef...
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