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公开(公告)号：US20240200157A1
公开(公告)日：2024-06-20
申请号：US18286830
申请日：2022-04-29
申请人： PAUL WURTH S.A.
发明人： Giang Kien LY , Nicolas MAGGIOLI
CPC分类号： C21B7/10 , F27D9/00 , F27D19/00 , F27D2009/0013 , F27D2009/0021 , F27D2009/0067
摘要： A cooling system for a metallurgical furnace includes a plurality of cooling arrangements having each a set of cooling elements arranged to extract heat from the furnace, the cooling elements having each at least one internal cooling channel for a coolant fluid, where the cooling elements are fluidly connected within each cooling arrangement; at least one discharge piping associated with each cooling arrangement for discharging the coolant fluid towards a main collector, where a flow regulating arrangement is serially mounted with the discharge piping and configured to control a flow rate of the coolant fluid therethrough and hence through the cooling arrangement, where the flow regulating arrangement includes a calibrated orifice defining a default, minimal flow cross section for the coolant fluid and a regulating valve selectively operable to define a variable, additional flow cross-section.
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公开(公告)号：US20240052441A1
公开(公告)日：2024-02-15
申请号：US18257748
申请日：2021-12-17
申请人： PAUL WURTH S.A.
CPC分类号： C21B13/0073 , C21B13/02 , C25B15/081 , C01B3/38 , C21B2100/24 , C21B2100/26 , C21B2100/44 , C21B2100/66 , C21B2100/80 , C01B2203/06 , C01B2203/1241 , C01B2203/0205
摘要： 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 least 85 vol. % hydrogen, and receives a make-up hydrogen stream. At least part of the make-up hydrogen stream is produced on site. by at least one of (i) electrolysis means configured to produce hydrogen from steam recovered from one or more components of the industrial plant and/or from steam generated using waste heat and/or hot gases emitted by the one or more components; and (ii) gas shift reactor means configured to convert CO-bearing gas emitted by at least one component of the industrial plant into hydrogen and to remove CO2.
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3.发明公开公开(公告)号：US20230359155A1
公开(公告)日：2023-11-09
申请号：US18027184
申请日：2021-09-28
申请人： PAUL WURTH S.A.
IPC分类号： G05B13/02
CPC分类号： G05B13/027
摘要： Computer system, computer-implemented method and computer program product are provided for training a reinforcement learning model to provide operating instructions for thermal control of a blast furnace, where a domain adaptation machine learning model generates a first domain invariant dataset from historical operating data obtained as multivariate time series and reflecting thermal states of respective blast furnaces of multiple domains, a transient model of a generic blast furnace process is used to generate artificial operating data as multivariate time series reflecting a thermal state of a generic blast furnace for a particular thermal control action, a generative deep learning network generates a second domain invariant dataset by transferring the features learned from the historical operating data 21 to the artificial operating data, where the reinforcement learning model determines a reward for the particular thermal control action in view of a given objective function by processing the combined first and second domain invariant datasets, and dependent on the reward, the second domain invariant data set is regenerated based on modified parameters, and repeating the determining of the reward to learn optimized operating instructions for optimized thermal control actions to be applied for respective operating states of one or more blast furnaces.
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公开(公告)号：US20230272495A1
公开(公告)日：2023-08-31
申请号：US18018351
申请日：2021-07-23
申请人： PAUL WURTH S.A.
发明人： Jan KRULL , Cristiano CASTAGNOLA , Stefano MAGNANI
IPC分类号： C21B13/00
CPC分类号： C21B13/0073 , C21B2100/22 , C21B2100/26 , C21B2100/282 , C21B2200/00
摘要： A method of operating a metallurgic plant for producing iron products includes the following steps, wherein the metallurgic plant includes a direct reduction plant and an ironmaking plant, the metallurgic plant:
feeding an iron ore charge into the direct reduction plant to produce direct reduced iron products,
operating the ironmaking plant to produce pig iron, wherein biochar is introduced into the ironmaking plant as reducing agent, and whereby the ironmaking plant generates offgas containing CO and CO2, and treating offgas from the ironmaking plant in a hydrogen enrichment unit to form a hydrogen-rich stream and a CO2-rich stream. The hydrogen-rich stream is fed directly or indirectly to the direct reduction plant. The CO2-rich stream is converted to be valorized in the direct reduction plant.
A corresponding metallurgic plant is also related.-
公开(公告)号：US20220290922A1
公开(公告)日：2022-09-15
申请号：US17632798
申请日：2020-07-23
申请人： PAUL WURTH S.A.
摘要： A valve for a PCI system of a blast furnace including a valve housing with an inlet opening, an outlet opening and a maintenance opening, a maintenance door that is adapted to close the maintenance opening in an operating position during operation of the valve and that is removable from the maintenance opening into a maintenance position, a valve member movably mounted to the maintenance door, wherein, when the maintenance door is in the operating position, the valve member is movable between a closed position for closing the valve and an open position, and, when the maintenance door is in the maintenance position, the valve member is accessible from outside the valve housing.
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公开(公告)号：US10150925B2
公开(公告)日：2018-12-11
申请号：US15508217
申请日：2015-09-02
申请人： Paul Wurth S.A.
发明人： Louis Schmit , Ben Muller
摘要： A process for pressurizing bulk material in a hopper; wherein the hopper is configured as a lock hopper (29) containing a bulk material, a source of pressurized gas, lines (22, 26, 28) to convey the pressurized gas from the source to one or more inlets (30) of the lock hopper, a valve arranged in the lines, wherein the opening position of said valve (34, 35) is controlled to provide pressurizing gas to the lock hopper at a preset constant gas volume flow rate.
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公开(公告)号：US10113799B2
公开(公告)日：2018-10-30
申请号：US15315361
申请日：2015-06-04
申请人： Paul Wurth S.A.
发明人： Paul Tockert , Jeff Vandivinit , René Hientgen
摘要： A gearbox assembly for a charging installation of a metallurgical reactor includes a stationary casing housing a gear assembly. The casing includes a bottom section with a central opening. The assembly further includes a rotor mounted within the casing for rotation about a first axis, which defines an axial direction. The rotor includes a support for the gear assembly, wherein a lower section of the support is disposed within the central opening. To provide for a better protection of a gear assembly, the bottom section includes a first annular portion extending radially inwards to a first radius. The lower section has a second annular portion extending radially outwards to a second radius that is greater than the first radius. The second annular portion is disposed adjacent to the first annular portion. The first annular portion includes a ring element disposed for sliding contact with the second annular portion.
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公开(公告)号：US09926614B2
公开(公告)日：2018-03-27
申请号：US15324317
申请日：2015-07-02
申请人： Paul Wurth S.A.
发明人： Paul Tockert , Ettore Rizzuti
摘要： A device for immobilising the spout on the ends of the trunnions, in a charging installation for a shaft furnace comprising a pivoting material distribution spout (1), the spout being connected to the supporting trunnions (2) by lugs (11) which engage in receptacles (21) formed in the trunnions and which are immobilised therein by pins (3) comprising at their end an eccentric nipple (31) engaging with a lug of the spout to hold the lug immobilised at the bottom of its receptacle, and locking means (4) for rotationally locking the pin. Each pin comprises, at the outer, opposite end thereof from the nipple, means (32) for rotational adjustment and tightening, so as to be able to press the nipple onto the lug of the spout with sufficient force by rotation of the pin, and the locking means comprise an indexing plate (41) connected for rotation to the end of the pin (3), the plate (41) further comprising teeth (416) arranged to cooperate with the corresponding teeth (421) of a lock (42) secured to the trunnion, in such a way that said lock can rotationally immobilise the pin in a plurality of circumferential positions of said pin.
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公开(公告)号：US20170226601A1
公开(公告)日：2017-08-10
申请号：US15502637
申请日：2015-08-07
申请人： PAUL WURTH S.A.
发明人： Nicolas MAGGIOLI , Nicolas MOUSEL
CPC分类号： C21B7/10 , C21B7/103 , C21B7/106 , F27D9/00 , F27D19/00 , F27D21/00 , F27D21/0021 , F27D2009/0005 , F27D2009/0013 , F27D2009/0024 , F27D2009/0032 , F27D2009/0043 , F27D2009/0048 , F27D2021/0007
摘要： A cooling plate for a metallurgical furnace comprising a body (12) with a front face (18) and an opposite rear face (20), the body having at least one coolant channel (14) therein; the front face (18) being turned towards the furnace interior and preferably comprises alternating ribs (22) and grooves (24). The cooling plate includes wear detection means comprising: a plurality of closed pressure chambers (26, 28) distributed at different locations in said body, said pressure chambers being positioned at predetermined depths below the front face (18) of said body; and a pressure sensor (30) associated with each pressure chamber (26, 28) in order to detect a deviation from a reference pressure inside said pressure chamber when the latter becomes open due to wear out of said body.
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公开(公告)号：US09683783B2
公开(公告)日：2017-06-20
申请号：US15108521
申请日：2014-12-19
申请人： PAUL WURTH S.A.
CPC分类号： F27D1/12 , C21B7/106 , C21C5/4646 , F27B1/24 , F27B3/24 , F27D2009/0032
摘要： A stave cooler for a metallurgical furnace includes a panel-like body having a front face for facing the interior of the metallurgical furnace, an opposite rear face, an upper face, an opposite lower face, and two side faces. At least one internal coolant passage is arranged within the panel-like body. The panel-like body is provided with a ledge on its front face extending between the side faces for being arranged in a horizontal plane. At least one protection element is provided for covering at least part of an upper face of the ledge. The protection element includes a first lateral portion, a second lateral portion, and a central portion. The lateral portions each include a widened front section and a narrow connection section. The panel-like body is provided with at least one through hole arranged for passing each of the lateral portions and the central portion of therethrough in turn.
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