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WO/2022/191754A1 |
43 Abstract Method for producing direct reduced metal material (106) in a continuous process, wherein hydrogen gas and inert gas is circulated in respective closed-loop first and second gas circuits via different respective gas connectio...
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WO/2022/185206A1 |
Method for the treatment of black slag (1), which contains lime (CaO) or lime- based compounds, and which is generated in an electric furnace (2) to produce steel starting from scrap, characterized by the fact that said black slag is ind...
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WO/2022/186066A1 |
A blast furnace abnormality determination device according to the present invention comprises: a temperature distribution measurement means which measures a temperature distribution directly on a raw material charging surface inside a bl...
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WO/2022/180506A1 |
The invention relates to a process for processing a non-metallic melt (5) into amorphous material (11), in which process the melt (5) is vitrified by cooling, the melt (5) being brought into contact with a bath of molten metal (3) for vi...
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WO/2022/180544A1 |
A method of manufacturing a steel product into at least two different steelmaking units wherein an expected level of CO2 emissions for the manufacturing of said product in each respective steelmaking unit is calculated.
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WO/2022/180425A1 |
A method to manufacture a global tonnage of steel products in at least two steelmaking units wherein expected level emissions are calculated and compared with pre-defined targets.
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WO/2022/180542A1 |
A method to manufacture a global tonnage of steel products in at least two steelmaking units wherein expected level emissions are calculated and compared with pre-defined targets.
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WO/2022/180426A1 |
A method of manufacturing a steel product into at least two different steelmaking units wherein an expected level of CO2 emissions for the manufacturing of said product in each respective steelmaking unit is calculated.
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WO/2022/182097A1 |
The present invention provides a blower branch pipe, a method for manufacturing a blower branch pipe, and a furnace blowing system, that can prevent a safety accident in advance by monitoring whether a blower branch pipe is subject to da...
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WO/2022/180427A1 |
A method to manufacture a steel product in a steelmaking plant comprising several different tools, the method including the definition of at least two manufacturing routes using different tools and the calculation of the expected level o...
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WO/2022/176518A1 |
The present invention provides a method for charging a raw material into a blast furnace, whereby raw material particle size distributions in a furnace top bunker that are suitable for each of conventional tilt charging and reverse tilt ...
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WO/2022/178037A1 |
A method of recovering iron and other species from tailings that contain iron oxide. In the method an electric induction furnace or electric arc furnace is used as an iron-reduction furnace. The furnace is charged with tailings that cont...
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WO/2022/177497A1 |
This disclosure regards a method of reduction of a metal oxide material (5) and regards a metal material production configuration (1) adapted for manufacture of reduced metal material, a metal oxide material production unit (3) produces ...
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WO/2022/169392A1 |
The disclosure relates to a process for the production of sponge iron from iron ore, the process comprising the steps: charging iron ore into a direct reduction shaft (211); introducing a hydrogen-rich reducing gas (215) into the direct ...
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WO/2022/168556A1 |
Provided are: a method for detecting a remaining amount of a molten substance and a detection device for the same, whereby the remaining amount of a molten substance in a vertical furnace can be detected at an optional timing; and a meth...
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WO/2022/168503A1 |
A method for detecting the height of a molten material in a blast furnace that comprises a furnace body having a bosh part and a plurality of tuyeres through which hot blast is blown into a furnace lower part of the furnace body, wherein...
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WO/2022/168396A1 |
A supplied heat quantity estimation method according to the present invention uses a heat quantity to be supplied into a blast furnace and a manufacturing speed for molten iron in the blast furnace to estimate the heat quantity to be sup...
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WO/2022/168557A1 |
Provided are: a detection method for the liquid level height of a molten material, said method making it possible to detect the liquid level height of the molten material with high accuracy from a residual amount of the molten material; ...
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WO/2022/168110A1 |
The present invention provides a process for recovery of base metal of steel from mill scale waste. Said process coverts the mill scale waste into base metal of steel alloys along with the respective parent elements such as Fe, Ni, Cr, M...
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WO/2022/166260A1 |
The present utility model relates to a blast furnace top large bleeding system, comprising a first bleeding pipe section, a second bleeding pipe section, a dust remover, and a bleeding valve. The first bleeding pipe section is separately...
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WO/2022/163836A1 |
The present invention is characterized by having a carbon production step for reacting carbon dioxide and a reducing agent to produce carbon, wherein the reducing agent uses: an oxygen-deficient iron oxide which is represented by Fe3O4-Î...
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WO/2022/160002A1 |
The present disclosure broadly relates to processes for preparing iron and ferro-alloys using coffee as a source of carbon.
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WO/2022/160493A1 |
The present invention belongs to the field of nonferrous metallurgy. Disclosed are a recovery method and the use of a crude ferro-nickel alloy. The recovery method comprises the following steps: crushing and ball-milling crude ferro-nick...
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WO/2022/156076A1 |
A method for producing aluminum oxide using a slag metallurgy technology, relating to the field of comprehensive utilization of aluminum-containing mineral resources, slag metallurgy, and aluminum oxide production. The method comprises: ...
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WO/2022/157221A1 |
The invention relates to a method for operating a blast furnace plant (1) that comprises a blast furnace (10), at least one material hopper (20) for charging raw materials to the blast furnace (10), having a upper seal valve (21) and a l...
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WO/2022/159022A1 |
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/2022/150897A1 |
The present invention relates to a system and a method for measuring the thickness of refractories comprising a heat flow measurement device to measure the heat flow from a hot face to a cold face of the refractory, a core wrapped in a t...
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WO/2022/154680A1 |
The subject of the invention is a method of smelting carbon steels directly from iron ore in one metallurgical reactor, consisting in introducing fine iron ore and fine fluxes into the reactor from the top of the reactor and a gas reduce...
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WO/2022/150894A1 |
The present invention relates to systems for distributing loads in a metal furnace. In this context, the present invention provides a system for distributing loads in a metal furnace, comprising (i) an open silo (10) designed to receive ...
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WO/2022/144671A1 |
Systems and methods for producing a blasting medium from a slag and using the blasting medium. A slag produced during steel making processes is poured at a high temperature. The poured slag is then further processed to produce the blast ...
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WO/2022/143978A1 |
Provided is a secondary energy storage system based on waste heat utilization of an iron and steel plant. The energy storage system is provided with a high-temperature secondary battery and a heat source for heating the high-temperature ...
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WO/2022/138043A1 |
This furnace top device 1 comprises: a conveyor head cover 22 enclosing the raw-material-input-side end of a conveyor 20; a switching chute 14 that has a receiving port 52 facing a discharge port 62 of the conveyor head cover 22, and tha...
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WO/2022/128377A1 |
The invention relates to a device for taking gas samples from a blast furnace, having a rod-shaped probe (33), which is arranged in the furnace chamber of the blast furnace above the charge surface (18) and has a plurality of removal ope...
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WO/2022/129515A1 |
The invention relates to the production of direct reduced iron, DRI, where a hydrogen direct reduction is synergistically operated in the context of an industrial plant. The hydrogen reduction operates with reducing gas comprising at lea...
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WO/2022/129442A1 |
Method for raceway depth measurement in a blast furnace, device for raceway depth measurement in a blast furnace and use thereof.
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WO/2022/121448A1 |
The present invention relates to an improved blast furnace distributor having a nitrogen sealing structure, belonging to the field of blast furnaces. The nitrogen sealing structure is divided into two functional areas in the overall stru...
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WO/2022/125883A1 |
Bauxite residue recovery includes mixing a solution of hydrochloric acid (HCL) according to a predetermined concentration, and adding the HCL solution to a quantity of raw red mud recovered from industrial operations as waste material. T...
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WO/2022/124267A1 |
This mud material comprises a starting refractory material, an organic binder and a hardening agent, wherein: part or the whole of the organic binder is a novolac type phenolic resin; part or the whole of the hardening agent is a methyle...
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WO/2022/118187A1 |
Cooling apparatus (1), for cooling a material, in particular for cooling white and / or black slag and / or the residue that forms at the bottom of a ladle furnace, characterized in that it comprises: - at least one reactor (2), with tub...
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WO/2022/119209A1 |
The present invention relates to a blowing or re-blowing process of a blast furnace, and blast furnace equipment for same. The present invention relates to a blowing or re-blowing process of a blast furnace, the process including the bla...
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WO/2022/119882A1 |
A system for reducing ore includes a hydrogen supply unit configured to supply hydrogen, a furnace configured to reduce the ore using the supplied hydrogen, and a hydrogen recovery unit configured to recover hydrogen from an exhaust gas ...
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WO/2022/115024A1 |
The present disclosure relates to a process for the production of carburized sponge iron (208), comprising the steps of charging (s303a) iron ore (207) into a direct reduction shaft (211), and/or discharging (s303b) carburized sponge iro...
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WO/2022/109663A1 |
A method and an apparatus method for producing direct reduced iron (DRI) from iron ore using biomass as a source of reductant and as a heating source of the iron ore and electromagnetic energy as a further heating source in a furnace hav...
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WO/2022/109665A1 |
A method and an apparatus for "recycling" a significant amount of heat within a linear hearth furnace by means of an endless conveyor that transports briquettes through the furnace from an inlet (briquette feed) end to an outlet (DRI dis...
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WO/2022/105226A1 |
The present invention relates to the field of blast furnace smelting, and discloses a method and system for quantitatively presuming silicon-sulfur content of molten iron during blast furnace tapping. The method comprises the following s...
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WO/2022/106454A1 |
The present invention relates to a method (100) and a device (10) for the characterization of a smelting process and to an installation (1) for smelting metal ores (2). A set of data (20) is provided, which characterizes a spatial distri...
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WO/2022/104443A1 |
The present invention relates to pig iron production plants. In this context, the present invention provides a sustainable complex for producing pig iron and co-products comprising (i) a production plant for pig iron and co-products, (ii...
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WO/2022/090390A1 |
The application relates to a method for producing steel, comprising producing iron sponge (10) from iron-oxide-containing starting material (11) by means of direct reduction by a reducing gas (13), the reducing gas (13) consisting of at ...
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WO/2022/094378A1 |
A cooling assembly for cooling exhaust gases emitted from a steel-making furnace includes a plate configured to be coupled to the furnace. The plate has a first surface and an opposing second surface. The assembly includes a body having ...
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WO/2022/078582A1 |
The present invention proposes a heat storage device such as e.g. a hot blast stove (10) comprising a heat regeneration checkerwork (14) made of checker bricks (12), the checkerwork (14) being supported by a support assembly (16). In acc...
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