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WO/2020/193086A1 |
Method of manufacturing iron in a metallurgical vessel, said vessel comprising a bath of molten iron with on top of the bath of molten iron a layer of slag, wherein a metalliferrous feed, carbon containing material, fluxing material, and...
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WO/2020/196360A1 |
Proposed are a method for heating up the hearth of a blast furnace, and a burner lance used for same, wherein at the start of blowing down of a blast furnace, damage to the burner lance during heating up with the burner lance provided at...
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WO/2020/196769A1 |
The present invention improves ventilation in the lower section of a blast furnace by blowing finely crushed ore through the tuyere.　This operation method of a blast furnace 1 according to the present invention is characterized in that...
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WO/2020/196487A1 |
A powder ratio measurement device is provided, which, in operation processes of a blast furnace, etc., can measure in real time with high accuracy the powder ratio of powder adhered to the surface of the material used as a raw material.ã...
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WO/2020/196589A1 |
Provided are blast furnace wall-cooling staves which have liners on the furnace interior side and with which it is possible to extend the service life of the liners by preventing temperature increase in the liners. The blast furnace wall...
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WO/2020/191504A1 |
Pyro-hydrometallurgical methods are described to economically and environmentally recover a target metal from iron slag or steel slag. For instance, the method can enable subjecting an iron or steel slag feed to acid-baking with an acid ...
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WO/2020/196966A1 |
Raw material production equipment according to one embodiment of the present invention comprises: a waste refractory processing apparatus for producing a first regenerated raw material by burning and removing carbon (C) from a waste refr...
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WO/2020/187672A1 |
The invention relates to a method for the direct reduction of oxidic iron carrier particles (2) to a reduction product (9) in a fluidized bed (4) through which a reduction gas (8) containing 30 - 100 mol% hydrogen H2 flows in crossflow. ...
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WO/2020/188615A1 |
Method for the production of metal products starting from ferrous material, by means of an electric arc furnace.
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WO/2020/189393A1 |
Provided are: a hole-opening bit, which makes the launching from a long blast stoppage or launching from a furnace cooling accident in a relatively short time possible by efficiently raising the temperature of the blast furnace bottom an...
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WO/2020/182616A1 |
The invention provides a method and an installation (10) for removing slag, which allow for a rapid and simple slag removal as well as metal recovery from the slag (60'), at the same time reducing the risk of slag fires.
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WO/2020/182328A1 |
The invention relates to a metallurgic furnace, in particular a metallurgic furnace for receiving a molten metal.
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WO/2020/182303A1 |
The invention relates to a taphole plugging gun comprising a material chamber (21) for receiving a plugging mass volume, a mouthpiece for introducing into a taphole, and a nozzle part (23) which tapers in the direction of the mouthpiece ...
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WO/2020/177302A1 |
Provided is a method for utilizing cold-air heat of a blast furnace axial flow blower, involving: configuring two or more hot blast stoves (104, 204, 303) and, when using an alternating air supply method for supplying air to a blast furn...
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WO/2020/174328A1 |
The invention relates to a device for removing the slag from the deslagging area of a furnace and for recovering thermal energy from the slag. The device comprises: - a loading zone, which receives the hot liquid slag; - an unloading zon...
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WO/2020/171079A1 |
[Problem] To provide a chute connecting a reduction furnace and a cooling furnace to each other, whereby it becomes possible to feed desired reduced iron, to discharge aggregated reduced iron, refractories detached from the inside of the...
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WO/2020/171008A1 |
A blast furnace operation method according to one aspect of the present invention comprises the steps of: previously determining the correlation between a carbon intensity in a reducing gas and a carbon consumption intensity reduction am...
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WO/2020/166347A1 |
Provided are a method for charging a raw material into a bell-less blast furnace, whereby a raw material can be charged into the furnace in a predetermined position without compromising productivity, and a blast furnace operation method ...
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WO/2020/165342A1 |
A direct reduction system for a direct reduction of iron ore, comprising a reactor (1) having a reduction area (2) and being adapted to be loaded from above with said iron ore; a treatment and feeding line (11), to process the process ga...
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WO/2020/165489A1 |
In the present there is presented a method to manufacture multimaterial rolls (1), comprising method to produce base material (B) containing part of the roll, joining of special material (A) containing part for that, hot working at least...
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WO/2020/161314A1 |
A device (10) and method for measuring the thickness of a cooling plate (12) are disclosed. The device is designed to fit inside a coolant channel (16) of the cooling plate and comprises a probe holder housing (26) having a front sensor ...
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WO/2020/151034A1 |
Disclosed is a method for the separation and enrichment of valuable components from a titanium-containing iron mineral, the method involving: blending a titanium-containing iron mineral with a ferrosilicon alloy powder as a reducing agen...
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WO/2020/139555A1 |
A refractory-lined equipment includes a vessel defining an interior at least partially lined with a refractory material, and a nozzle assembly coupled to the vessel and extending into the interior. The nozzle assembly includes an outer s...
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WO/2020/135660A1 |
Disclosed is an environmentally friendly and energy-saving blast furnace slag intelligent treatment system, comprising a granulating tower (1), a chimney (3), a filtering tank (7), a hot water heat exchange unit, a cooling tower (11), a ...
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WO/2020/124105A1 |
The invention relates to a method for processing molten material (5), in the form of non-metallic melts (5) such as slag, into amorphous material (11), in which method the molten material (5) is vitrified by cooling, the molten material ...
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WO/2020/127049A1 |
Process for the direct reduction of metal oxides (2) using a reduction gas, which is based on at least one precursor gas, wherein at least one precursor gas (15, 22) is based on reformer gas obtained by catalytic reforming of hydrocarbon...
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WO/2020/120771A1 |
A method for protecting an inner wall (12) of a shaft furnace, the method comprising the steps of: providing at least one injection device (28) through the inner wall (12) of the shaft furnace, the injection device (28) being configured ...
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WO/2020/115531A1 |
Stainless steel, characterised in that the composition thereof, in weight percentages, consists of: traces ≤ C ≤ 0.15%; 0.05% ≤ N ≤ 0.25%; 11.0% ≤ Cr ≤ 18.0%; 2.0% ≤ Mn ≤ 8.0%; traces ≤ Cu ≤ 3.0%; traces ≤ Ni ≤ 2....
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WO/2020/118308A1 |
Embodiments include a manifold for a desulfurization lance in the manufacture of steel, the manifold including a body extending from a first end to a second end, the first end including an inlet adapted to fluidly connect with a carrier ...
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WO/2020/117181A1 |
A perforator for tapping tap-holes of industrial furnaces comprises a casing (1) which accommodates: a distribution block (3) with a piston-hammer (4) installed therein; at least two pins (2); a shaft (5) connected at one end to a hydrau...
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WO/2020/110444A1 |
A furnace top device (20) comprises a furnace top hopper (22) provided with a charging port (50) in the upper part, a movable plate (40) that is provided outside the furnace top hopper (22) and above the charging port (50) and can move t...
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WO/2020/108987A1 |
The invention relates to a method for raceway depth control in a blast furnace, comprising controlling a hot blast flow through a tuyere by means of a control system, the control system carrying out a raceway depth measurement through th...
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WO/2020/111666A1 |
A fluidized bed furnace comprises: a lower reactor which forms a first fluidized bed space having a first diameter, and which includes a discharge port through which reduced iron fines are discharged; an upper reactor which forms a secon...
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WO/2020/105901A1 |
A device for manufacturing molten iron is disclosed. The disclosed device for manufacturing molten iron, according to one exemplary embodiment of the present invention, may comprise: a multi-stage fluidized reduction furnace for reducing...
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WO/2020/101360A1 |
The present invention relates to an apparatus for producing a metal material and a method therefor, the apparatus comprising: a container which provides a space for accommodating a molten material therein; a nozzle disposed under the con...
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WO/2020/099908A1 |
A direct reduction shaft furnace having at least one probe disposed vertically within the reduction zone thereof. The probe preferably extends from the top to the bottom of the reduction zone. The probe allows for gas sampling along the ...
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WO/2020/094401A1 |
The invention relates to an installation for dry granulation of slag, comprising: a granulator (1), an air supply (11) for the granulator, comprising a fresh air line (9) for supplying fresh air into the granulator, and an apparatus for ...
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WO/2020/087733A1 |
A short-process smelting reduction iron-making system and method, relating to the technical field of iron-making. The system comprises a pulverized coal preparation device (1-1), an iron ore powder preparation device (1-2), an iron ore p...
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WO/2020/088285A1 |
A spray gun device, comprising a support box (31), a spray gun driving device (33) and a rotary spray gun (32), wherein the rotary spray gun comprises a gas-liquid revolute joint (321) and a nozzle (322); the nozzle is connected to a ref...
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WO/2020/084325A1 |
A method for monitoring the wear of a refractory lining of a blast furnace using modelling of a part of the blast furnace and thermal field calculation. Computer program allowing to perform such a method.
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WO/2020/081559A1 |
A method for cooling furnace electrodes using a cooling liquid containing surfactants. This method can be applied to electrodes used in electric arc furnaces and ladle metallurgy furnaces. The method can involve spraying the cooling liqu...
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WO/2020/080038A1 |
A furnace top device is provided with: an inside gate part 102 having two inside gate plates 110, end parts 116 of which at least partially face each other, which are provided in a discharge port 36 of a collection hopper 30 positioned v...
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WO/2020/080808A1 |
Introduced is a carbon dioxide emission reduction type molten iron manufacturing apparatus, comprising: a reduction unit for reducing fine ore using a reducing gas; a compacted iron supply unit for preparing a first reduced compacted iro...
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WO/2020/061600A1 |
The invention relates to a method for recycling waste arising in a steelworks. According to the invention, briquettes are created from a plurality of waste materials, wherein a proportion of iron oxide in the briquettes equals at least 3...
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WO/2020/058874A1 |
The plant (1) for the cooling and recovery of white slag resulting from iron and steel processes, comprises: a loading chute (2) for the white slag; a cooling bedplate (3) adapted to receive the white slag coming from the loading apparat...
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WO/2020/059630A1 |
The purpose of the present invention is to provide a method for smelting oxide ore, the method being capable of efficiently producing high quality metal. The present invention pertains to a smelting method for producing a metal such as f...
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WO/2020/053397A1 |
A top charging apparatus (1) for charging material in a blast furnace comprising a material hopper (2) having a top opening (3) and a bottom opening (4) defining a longitudinal axis (X); a closing/opening device for closing or opening sa...
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WO/2020/048556A1 |
The invention relates to a thermal method with the aid of a pressure pipe reactor for carrying out, under continuous flow conditions, some chemical reactions on the surface of at least one solid reactant in a gas/solid phase reaction. Th...
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WO/2020/045755A1 |
A hot blast stove for a blast furnace according to an embodiment of the present invention comprises a combustion chamber, a heat storage chamber, a burner, and a plasma ignitor. The heat storage chamber is connected to the combustion cha...
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WO/2020/033118A1 |
A flash ironmaking drop tube furnace includes a primary reaction section having a refractory, an induction coil around the refractory, insulation located between the refractory and the induction coil, and a susceptor located inside the r...
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