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WO/2021/094761A1 |
A method of treating particulate by-product of ferrous metal processing, the method comprising exposing said particulate by-product to ultrasound, said particulate by- product being located in a fluid. An apparatus for treating said part...
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WO/2021/094195A1 |
The invention relates to a method for the direct reduction of iron ore to iron sponge, wherein the iron ore passes successively through a reduction zone (13) to reduce the iron ore to iron sponge and a cooling zone (15) to cool the iron ...
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WO/2021/095595A1 |
A production facility operating method according to the present invention is for operating a plurality of similar production facilities that are installed at a plurality of production sites, the method comprising: a data information main...
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WO/2021/094412A1 |
The invention relates to a method for producing a feed melt for a converter treatment, characterized in that a premelt (9, 9') is produced by combining liquid crude iron (5, 5') from a blast furnace and/or from a smelting reduction syste...
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WO/2021/090222A1 |
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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WO/2021/085221A1 |
The purpose of the present invention is to provide a blast furnace operation method by which operation of a blast furnace can be stabilized even when the powder ratio of coke charged in the blast furnace has increased. The blast furnace ...
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WO/2021/082643A1 |
A method for dome temperature control during the combustion of a hot-blast stove, comprising: acquiring the optimal mixed gas flow and combustion-supporting air flow in a combustion process (S100); combusting a dome according to the opti...
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WO/2021/080178A1 |
The present invention provides a granule manufacturing apparatus and method, the apparatus comprising: a precipitation tank in which a metal melt is precipitated; a connecting part which includes a pump, and of which one side communicate...
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WO/2021/072562A1 |
The invention relates to a zero-waste process that uses final slag from copper smelting to produce commercial products, which comprises: (a) charging/pouring materials: adding a reducing agent, slag and oxides to a reactor/oven; (b) redu...
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WO/2021/064055A1 |
The present invention relates to a method for smelting metal- and metal oxide containing wastes and side streams, such as slags, dust, scales and sludges genereated in stainless steel and ferrochrome manufacturing processes. The invented...
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WO/2021/057365A1 |
Disclosed is a comprehensive system for blast furnace slag removal and transport and a slag bath toxic water vapor pollution treatment, the system comprising a slag flushing unit (1), a slag and water separation unit (2), a slag conveyin...
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WO/2021/061038A1 |
Method and system for producing direct reduced metal material, comprising the steps: a) charging metal material to be reduced into a furnace space (120); b)evacuating an existing atmosphere from the furnace space to achieve a gas pressur...
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WO/2021/056905A1 |
A two-section downdraught bed ironmaking system and ironmaking process. The system comprises: a melting furnace section (4), which is arranged vertically and downwards, a basic combustion/gasification device (1) being provided at the top...
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WO/2021/061896A1 |
A direct reduction method/system, including: adding variable amounts of natural gas, hydrogen, and a carbon-free oxidizing gas to a feed gas stream upstream of a reformer; reforming the feed gas stream in the reformer to form a reformed ...
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WO/2021/048297A1 |
Method of introducing a metalliferous feed (4) in an ironmaking process, the method comprising the steps of, pre-drying an iron containing sludge by drying means to an amount of 15 to 30% (w/w) moisture, mixing the pre-dried iron contain...
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WO/2021/048068A1 |
The invention relates to a skip hoist of a blast furnace with a winch system (1). In order to provide an improved drive system for a skip hoist of a blast furnace, the invention provides that the winch system comprises: - a winch drum (2...
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WO/2021/035974A1 |
A transportation system and method for a blast furnace shell. The transportation system comprises a material receiving platform (11) disposed outside a casting house and a furnace body surrounding frame (12) disposed at the periphery of ...
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WO/2021/035815A1 |
An electric energy full-hydrogen flash reduction direct steelmaking system and process. The system comprises an electrolytic water hydrogen production device, a cyclone flash reduction furnace, an electric heating melting furnace, and a ...
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WO/2021/037700A1 |
For efficient and economical production of DRI with low CO2 emissions, the required heat for driving the direct reduction process in a direct reduction unit is provided by an electrical heating element (11), the off-gas of the direct red...
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WO/2021/035821A1 |
Provided are a cyclone flashing-speed reduction direct steelmaking system and process. The system comprises a carbon monoxide preparation device, a cyclone flashing-speed reduction furnace, an electric heating smelting separation furnace...
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WO/2021/033721A1 |
[Problem] To provide an irregularity assessment device and method with which it is possible to not only detect condition irregularities but also detect predictors of blast furnace condition irregularities. [Solution] An irregularity asse...
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WO/2021/029008A1 |
The present invention provides a carbon composite ore which has high strength and therefore can be used suitably as an iron-making raw material in a blast furnace. The carbon composite ore of the present invention comprises an iron-conta...
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WO/2021/028267A1 |
The invention relates to a method for maintenance of a cooling assembly (1) for a metallurgical furnace, the cooling assembly (1) comprising * a cooling plate (2) disposed inside of a furnace shell (20) of the metallurgical furnace; * a ...
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WO/2021/029114A1 |
[Problem] To provide a facility for the production of direct reduced iron, which makes it possible to perform reforming and reduction and adjust the carbon amount in a product, i.e., reduced iron, within a wide range without requiring th...
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WO/2021/023520A1 |
The invention relates to a valve (1) for a PCI system of a blast furnace. In order to facilitate maintenance of a valve and a PCI system, the invention provides that the valve comprises: - a valve housing (2) with an inlet opening (2.1),...
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WO/2021/014782A1 |
A learning model generation method according to the present invention includes a step for machine-learning an action model in which an operator determines an operation quantity of a process or an apparatus by taking, as input data, image...
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WO/2021/015409A1 |
The present invention relates to a stave and a stave manufacturing method, comprising: forming a coolant channel in a rolled sheet material by drilling from one side toward the opposite other side of a rolled sheet material; bending the ...
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WO/2021/014923A1 |
A method for controlling a process, including: a free response calculation step for calculating a free response for a case in which the operation amount for all operation variables is uniform for a prescribed period defined in advance fr...
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WO/2021/008138A1 |
A method for producing particulate metal and titanium carbide using red mud as a raw material, which belongs to the field of smelting. In the present invention, red mud is firstly mixed with low volatile solid carbon and placed in a molt...
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WO/2021/004914A1 |
The invention relates to a method for sealing a reduction assembly (3), wherein the reduction assembly (3) has a product discharge device (2), wherein the product discharge device (2) is supplied with sealing gas (4) and wherein at least...
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WO/2020/260561A1 |
Method for obtaining at least one item of information from the group - information relating to the content of ferromagnetic iron, - information relating to the degree of metallization, - information relating to the carbon content, concer...
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WO/2020/258806A1 |
A joint coal gasification and molten iron reduction device and method having sufficient preheating and gas phase prereduction, belonging to the technical field of steel smelting. The device comprises an iron ore powder preparation system...
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WO/2020/263343A1 |
Computer modelling methods and foundry methods for copper- nickel coolant pipes cast-in-copper coolers are combined. First, Computational Fluid Dynamics and/or Finite Element Analysis steps verify geometric computer aided design models a...
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WO/2020/255475A1 |
This electrolytic smelting furnace is provided with: a plurality of electrolytic furnaces aligned vertically; connecting pipes that extend vertically and allow the bottom surface of an upper electrolytic furnace to communicate with a low...
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WO/2020/255468A1 |
This electrolytic smelting system (100) is provided with: an electrolytic smelting furnace (1) having a furnace body (10) in which a molten ore (Wm) is introduced, a negative electrode substrate (11) provided on the bottom part (10B) ins...
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WO/2020/255465A1 |
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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WO/2020/249261A1 |
The present invention relates to a method for operating an electric arc furnace (100), wherein an argon rich gas (133) is injected into the furnace (100) and wherein an electrode unit (110) comprising at least one electrode (111) of the ...
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WO/2020/245070A1 |
The present invention generally relates to methods and systems for producing steel or similar molten-iron-containing materials in melting or smelting furnaces utilizing pre-reduced iron ore, known also as direct reduced iron (DRI) or spo...
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WO/2020/247328A1 |
A process for the production of direct reduced iron (DRI), with or without carbon, using hydrogen, where the hydrogen is produced utilizing water generated internally from the process. The process is characterized by containing either on...
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WO/2020/241008A1 |
Provided is a surface profile detection device for blast furnace charge that has a simple configuration but still detects the turning of a shooter and the accumulation of charge to make it possible to achieve operations that approach a t...
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WO/2020/239536A1 |
The invention relates to a method for preparing iron powder (6), wherein: in a first step (B) iron oxide powder agglomerates (1) are broken up; in a second step (C) the iron oxide powder (2) is thermally agglomerated from the broken up i...
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WO/2020/234290A1 |
The invention relates to a method for operating a blast furnace. In order to provide an optimised blast furnace operation, the invention provides that the method comprises: - collecting a blast furnace gas from the blast furnace (12), sa...
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WO/2020/230177A1 |
Method to produce a polymeric product starting from a primary heterogeneous mixture comprising polymeric material, comprising fragmentation into desired sizing, mechanical primary selection of the fragmented material and plastification, ...
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WO/2020/229545A1 |
The invention relates to a method for operating a metallurgical furnace (10). In order to provide a simplified way of providing synthesis gas for a metallurgical furnace, the invention provides that the method comprises: - performing a c...
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WO/2020/229994A1 |
The present invention relates to a process for the smelting of a metalliferous feedstock material. The process includes the steps of: (i) feeding an agglomerate comprising of a fine metalliferous feedstock material and a fine reductant t...
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WO/2020/223774A1 |
The present invention relates to a refrigerated panel (23) used on the walls of blast furnaces (1) and other industrial furnaces, consisting of a body (25) made from copper, cast iron or another metal alloy, independent internal refriger...
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WO/2020/216320A1 |
A method for reducing oxide ores by using a square carbonization chamber of a coking plant, comprising performing mixing; pressing ores into spheres by means of a ball pressing machine, and putting same into the square carbonization cham...
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WO/2020/211689A1 |
Disclosed is a smelting method and smelting device for processing an iron-based polymetallic mineral using a short process. The smelting system used in the smelting method includes a bath smelting device. A dividing wall (30) is provided...
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WO/2020/206833A1 |
A method of vortex melting, reducing, dealkalization, iron extraction and direct cement production of high-iron red mud, performed according to the following steps: (1) preparing raw material high-iron red mud; (2) drying the raw materia...
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WO/2020/206520A1 |
The invention converts existing blast furnaces (1) from gas/solid reduction to self-reduction (2), reducing the process time from 8 hours to 30 minutes. Sinter, pellets or mineral (17) are replaced by self-reducing agglomerates (30), and...
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