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WO/2021/260225A1 |
The present invention provides a reduction system and method that can be operated with any proportion of gaseous hydrogen-containing gases and gaseous hydrocarbon-containing gases having the possibility of continuing its operation, ensur...
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WO/2021/262145A1 |
A method and system for operating a seal gas compressor utilized in a direct reduction process including: monitoring a pH level of a water stream used in the seal gas compressor, wherein the pH level of the water stream is affected by a ...
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WO/2021/256966A1 |
What is claimed is a shaftless air heater, which comprises a system of burners located at the top of a prechamber (1) with a chamber for mixing gas and air. The prechamber (1) has a jacket (2) with a lining, inside of which an annular du...
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WO/2021/094328A9 |
Method for producing DRI that comprises circulating a first stream (F1) of spent reducing gas exiting a reactor (10) in a reducing gas circuit (20) through at least one carbon dioxide removal unit (38) and a reducing gas heater (42) and ...
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WO/2021/244616A1 |
The present invention relates to the fields of ironmaking and comprehensive resource utilization. Disclosed is a two-step method for efficiently separating iron and phosphorus in a high-phosphorus iron-bearing resource on the basis of ga...
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WO/2021/241272A1 |
This method for producing reduced iron by reducing iron oxide charged into a shaft furnace comprises: blowing a heated mixed gas that includes nitrogen gas and a reducing gas containing 90 vol% or more of hydrogen gas into a shaft furnac...
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WO/2021/237308A1 |
A process for producing direct reduced iron ("DRI") from iron ore and biomass in a single stage fluidised bed includes injecting (a) iron ore, (b) gaseous oxygen and (c) a solid reductant including biomass into a reaction zone of the flu...
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WO/2021/239096A1 |
Disclosed by the present invention is a preparation method for a carbon-iron composite furnace burden, comprising step 1: performing drying and water reduction on an iron ore powder; step 2: performing sieving on the iron ore powder, and...
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WO/2021/238029A1 |
A high-thermal-conductivity molten iron trough castable, prepared from the following raw materials in certain parts by weight: fused brown fused alumina, fused dense corundum, special-grade bauxite, silicon carbide, pure calcium aluminat...
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WO/2021/237281A1 |
A compacted 'green' briquette between 5 cm3 and 20 cm3 including, prior to reduction in a direct reduction process, a composition including at least 30% lignocellulosic biomass material by dry weight and at least 55% iron ore fines by we...
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WO/2021/241538A1 |
Provided is an operation method of a stationary electric furnace capable of stable operation. In an operation method of a stationary electric furnace (1) in which a molten raw material (11) is tapped from a sprue (2), a melt surface leve...
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WO/2021/233836A1 |
The invention relates to a method for dry granulation of molten material, wherein particles produced from this material are cooled in at least one fluidised bed by means of process gas and, at least in the fluidised bed which the particl...
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WO/2021/232489A1 |
Provided in the present invention is a system for treating steel tailings using a dry method, comprising: a roller mill completing repeated dissociation and pre-separation of the steel tailings and separating out minerals rich in iron pa...
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WO/2021/232822A1 |
A reinforced structure of a water inlet and outlet pipe of a cooling wall. The inner end of a water inlet and outlet pipe (2) is welded onto a cooling wall main body (1), the outer end of the water inlet and outlet pipe (2) passes throug...
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WO/2021/230307A1 |
Provided is a method for producing reduced iron by reducing iron oxide charged in a shaft furnace, wherein a mixed gas containing a reducing gas and a nitrogen gas and heated to a predetermined temperature is blown into the shaft furnace...
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WO/2021/230027A1 |
The present invention relates to a blast furnace operation method whereby residual coke which remains in a blast furnace during the outage of the blast furnace, i.e., the stopping of the blowing of air into the blast furnace, and may obs...
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WO/2021/229047A1 |
The invention relates to a method and an industrial plant for separating a waste material (1) comprising at least one metal (2) and at least one organic material (3). A separation fraction (4) of the waste material (1) is provided, said ...
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WO/2021/227210A1 |
Provided are an apparatus capable of reducing metal and a reduction process. The apparatus comprises a furnace body, a spray gun, an exhaust hole, and a collection portion, wherein the furnace body includes a cone structure, and the area...
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WO/2021/225500A1 |
The present disclosure relates to a process for the production of carburized sponge iron. The process comprises the steps of - reducing iron ore pellets using a carbon-lean reducing gas in a direct reduction shaft reactor to provide a sp...
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WO/2021/222952A1 |
A collecting pit (11) for receiving molten metal and cooling water has a drainage system made up of granular bulk material, wherein chambers are provided for receiving the molten metal. These chambers have a boundary in the floor region ...
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WO/2021/223543A1 |
The present application provides an efficient treatment method and apparatus for multiphase steel slag. According to the present application, the treatment apparatus for multiphase steel slag comprises a steel slag feeding apparatus and ...
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WO/2021/217707A1 |
A pulverized coal injection device, comprising: a connector body (1), wherein one end of the connector body (1) is connected to a storage bin; and at least two sets of nozzles (2), wherein the nozzles (2) are installed at the other end o...
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WO/2021/220802A1 |
The purpose of the present invention is to provide a melting/refining furnace for cold iron sources and a melting/refining furnace operation method, whereby it becomes possible to improve the heating efficiency of a raw material and redu...
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WO/2021/221529A1 |
Subject matter of the invention: A method for directly reducing iron ore concentrate and producing a melt of soft magnetic iron (ARMCO), and an apparatus for the implementation thereof. Field of use: The group of inventions relates to me...
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WO/2021/219277A1 |
The invention relates to a method for producing liquid pig iron, comprising the following steps: i) providing a directly reduced iron product (1) (DRI product) with an iron content of at least 75.0 wt.%, a carbon content of at least 0.10...
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WO/2021/220555A1 |
Provided is an iron manufacturing facility which, when reduced iron is to be manufactured from iron oxide, contributes to the achievement of a method that enables energy conservation and a reduction in the amount of CO2 emissions. The ...
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WO/2021/220751A1 |
Provided are: a method for detecting a fluctuation in a coagulation layer capable of detecting a fluctuation in a coagulation layer at an early stage; and a blast furnace operation method. In the method for detecting a fluctuation in a...
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WO/2021/221536A1 |
A blast heater comprises a cylindrical shell having a refractory lining and a heat exchange checker, a hot blast nozzle, a gradually tapering cylindrical region in a throat, said cylindrical region being situated at the top of a dome and...
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WO/2021/214167A1 |
The invention relates to a method for supplying raw material to a sinter plant (20). In order to facilitate a sinter process with reduced consumption of fossil fuels, the invention provides that a mixed material (7, 8) is used to supply ...
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WO/2021/215059A1 |
The method comprises a step for separating a carbon dioxide gas from a by-product gas discharged from a blast furnace, a step for producing a regenerated methane gas from the carbon dioxide gas, and a step for blowing a blow gas and a re...
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WO/2021/208450A1 |
A zinc recovery method and device for a blast furnace or a shaft furnace. The zinc recovery device comprises a flue gas extraction annular flue (1), a flue gas extraction pipe (2), a flue gas extraction duct (4), a heat exchanger (6), a ...
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WO/2021/210351A1 |
A hydrogen release and storage system (100) according to the present invention comprises a hydrogen compound member (101), a container (102) in which the hydrogen compound member (101) is accommodated, a heating device (103) for heating ...
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WO/2021/210496A1 |
This hydrogen release/storage system (100) comprises: a first hydrogen release/storage unit (100A) configured from a first hydrogen compound member (101A), a first container (102A) for accommodating the first hydrogen compound member (10...
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WO/2021/205935A1 |
Provided is a solid carbon production system (100) comprising: a separation unit (110) for separating a carbon dioxide gas which is contained in a product gas produced in a blast furnace (200); a reaction unit (120) for heating a fuel ga...
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WO/2021/205835A1 |
A method for preventing adhesion and clogging of a raw mineral material in a transportation processing facility by transporting or processing, in the transportation processing facility, a raw material mixture comprising the raw mineral m...
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WO/2021/200118A1 |
The present invention pertains to an optimum calculation method for an energy management condition at an iron mill, in which, using actual values and predicted values in terms of the amounts of utility energy generated and consumed at re...
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WO/2021/198977A1 |
The plant (1) for the treatment and recovery of white slag resulting from steelmaking processes, comprises: at least one basic frame (2); at least one work chamber (3), movable in rotation around a relevant axis (A) and configured to rec...
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WO/2021/190074A1 |
Disclosed is a 3D radar scanner (100) for blast furnace (50) burden surface imaging, and a blast furnace (50) burden surface detection system. The 3D radar scanner (100) comprises a base member (10) mounted at the top of a blast furnace ...
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WO/2021/189833A1 |
An auxiliary raw material feeding system for a blast furnace ore coke tank and a use method thereof, relating to the field of ore coke tank feeding systems. The auxiliary raw material feeding system comprises an auxiliary raw material ta...
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WO/2021/195160A1 |
A method for producing direct reduced iron having increased carbon content, comprises: providing a carbon monoxide-rich gas stream, and separating the carbon monoxide-rich gas stream into at least two separate carbon monoxide-rich gas st...
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WO/2021/189680A1 |
A water-cooled iron storage type molten iron trough structure, comprising: a working layer (1) in direct contact with a high-temperature mixed molten liquid, and a permanent layer (2) and a steel housing (3) covering outside the working ...
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WO/2021/195161A1 |
A direct reduction process comprises providing a shaft furnace of a direct reduction plant to reduce iron oxide with reducing gas; providing a direct reduced iron melting furnace; and coupling a discharge chute between a discharge exit o...
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WO/2021/186963A1 |
This blending plan creation method includes: an intake step for taking in input data necessary for creation of a blending plan and constraint conditions including a characteristic constraint for after blending of a raw material, a stock ...
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WO/2021/187209A1 |
This furnace charge measuring device (50) comprises: a beam radiating unit (51) that radiates a scanning beam (60) of microwaves or millimeter waves onto a raw material surface (34) of a furnace charge (33) that has been loaded into a bl...
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WO/2021/184078A1 |
A process and an apparatus for producing direct reduced iron ("DRI") from iron ore and biomass are disclosed. The process includes heating a batch of iron ore and biomass in a batch oven (3) and reducing iron ore and forming a solid DRI ...
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WO/2021/183022A1 |
The present disclosure relates to a process for the production of sponge iron. The process comprises the steps of: - producing electrolytic hydrogen and oxygen by electrolysis of water (s303); - producing methanol by reacting the electro...
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WO/2021/182041A1 |
This abnormality determination method for a blast furnace includes an abnormality determination step for inputting a plurality of pieces of operation data to be determined to a stabilization period model trained by using a plurality of p...
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WO/2021/179752A1 |
Disclosed are a blast furnace-converter production system based on a molten iron ladle crossing vehicle (3), and an operation method for the system. The system comprises an iron-making workshop (1), a steel-making workshop (5), a molten ...
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WO/2021/182220A1 |
This blast-furnace furnace condition learning method comprises: a first step in which image data of a raceway section of a blast furnace, captured during an image-capture period that includes a period in which a furnace condition abnorma...
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WO/2021/173031A1 |
The present technical solution, in general, relates to the field of metallurgy, more particularly to technologies for lining metallurgical units and other thermal units by the shotcrete method and to the realization thereof in apparatus ...
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