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公开(公告)号：US20230175204A1
公开(公告)日：2023-06-08
申请号：US17541527
申请日：2021-12-03
Applicant: ANDRITZ INC.
Inventor： Gregory R. Kohler , Paul Zerbe , Timothy Orr , Kevin Ganther , Julie Ruch
IPC: D21D1/26
CPC classification number: D21D1/26
Abstract: Conical inlet refiner elements for a mechanical refiner include: a conical stator element disposed between a feedstock inlet to the mechanical refiner and primary refining plates of the mechanical refiner; and a conical rotor element disposed between the feedstock inlet to the mechanical refiner and the primary refining plates, the conical rotor element configured to form an initial refining gap with the conical stator element. The conical stator element and the conical rotor element are configured to cause a radial change greater than zero but less than 90 degrees in a direction of an axial feedstock flow path through the initial refining gap at a feedstock inlet to a primary refining gap formed between the primary refining plates, where the primary refining gap formed between the primary refining plates lies in a plane that is approximately perpendicular to the axial feedstock flow path.
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公开(公告)号：US11643778B2
公开(公告)日：2023-05-09
申请号：US17451027
申请日：2021-10-15
Applicant: ANDRITZ INC.
Inventor： Luc Gingras
Abstract: A disperser apparatus includes: a first disperser assembly configured to rotate around an axis; and a second disperser assembly facing the first disperser assembly. The first and second disperser assemblies each have a plurality of disperser-refiner plate segments annularly arranged. Each of the disperser-refiner plate segments includes a substrate having teeth extending from the substrate and arranged in rows disposed at radial intervals defining a dispersion section. Each tooth has a tooth height; and walls; and edges at junctions of adjacent walls. Each of the disperser-refiner plate segments further includes a refining section of refiner bars extending from the substrate, wherein adjacent refiner bars and the substrate define a groove between the adjacent refiner bars; and a plurality transition bars disposed between radially outermost teeth and the refining section.
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公开(公告)号：US20230067083A1
公开(公告)日：2023-03-02
申请号：US17795571
申请日：2021-01-20
Applicant: ANDRITZ INC.
Inventor： Daniel Schuck , Matheus Sessim Gomes
IPC: G05B23/02
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, that can adjust operations of a manufacturing plant based on an assessment of risk to the plant's operations posed by the conditions and/or operations of the different devices in the manufacturing plant. Methods may include obtaining, using a set of sensors, a set of current operational characteristics for a plurality of plant devices in a manufacturing plant. For a particular plant device, a set of risk factors corresponding to a failure of the particular plant device can be analyzed. Based on the set of risk factors, an overall risk posed by the particular plant device to operations of the manufacturing plant can be determined. Based on the overall risk, one or more operations of the manufacturing plant can be adjusted.
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公开(公告)号：US20220333304A1
公开(公告)日：2022-10-20
申请号：US17521339
申请日：2021-11-08
Applicant: ANDRITZ INC.
Inventor： Luc Gingras , Tom Berger , Yves Raymond , Long Nguyen
IPC: D21D1/26
Abstract: Refiner plate elements for a conical mechanical refiner include: a rotor plate element including at least one rotor plate segment having a feedstock inlet opening disposed at a first end of the rotor plate segment; and a rotor plate segment refining area disposed between the feedstock inlet opening and a second end of the rotor plate segment. The refiner plate elements may further include: a stator plate element including at least one stator plate segment having a stator plate segment refining area; and first and second attaching rails configured to couple to the stator plate segment to a stator support frame of the conical mechanical refiner. A separation between the first attaching rail and the second attaching rail that is not covered by the stator plate segment is configured to form a feedstock outlet opening.
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公开(公告)号：US20220333303A1
公开(公告)日：2022-10-20
申请号：US17521278
申请日：2021-11-08
Applicant: ANDRITZ INC.
Inventor： Luc Gingras , Tom Berger , Yves Raymond , Long Nguyen
IPC: D21D1/26
Abstract: Refiner plate segments for a conical refiner may include a rotor plate segment having inlet openings disposed at one or more inlet locations on the rotor plate segment, and a stator plate segment having outlet openings disposed at one or more outlet locations on the stator plate segment. The rotor plate segment is disposed opposite the stator plate segment such that the one or more rotor plate segment refining areas and the one or more stator plate segment refining areas oppose each other, and the one or more inlet locations and the one or more outlet locations are separated by one or more refining zones formed by the rotor plate segment refining areas and the stator plate segment refining areas.
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Patent Agency Ranking
公开(公告)号：US11441266B2
公开(公告)日：2022-09-13
申请号：US16953843
申请日：2020-11-20
Applicant: Andritz Inc.
Inventor： John Phillips
Abstract: A disruptor adjustment system comprising: a disruptor assembly configured to disrupt a volume of smelt flowing from a smelt spout into a dissolving tank, wherein the disruptor assembly comprises an actuator operatively engaged to a disruptor, a sensor configured to record process data from the recovery boiler; and a control system configured to receive a sensor output signal from the sensor, wherein the sensor output signal indicates the process data at a measured time, wherein the control system is further configured to compare the sensor output signal to a programmed operation range, and to send a disruptor input signal to the disruptor assembly to adjust a disruptor operating condition if the process data of the sensor output signal is outside of the programmed operation range. In certain exemplary embodiments, the sensor is an image capture device. In certain exemplary embodiments, the disruptor assembly can be adjusted remotely.
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公开(公告)号：US20220034035A1
公开(公告)日：2022-02-03
申请号：US17277205
申请日：2019-10-07
Applicant: ANDRITZ INC.
Inventor： Luc Gingras , Tobias Michel
Abstract: The problem of increased energy usage in refiners over the working life of a refining assembly is mitigated by the use of a refiner plate segment having a refiner side and a back side distally disposed from the refiner side, refiner bars engaged to a substrate of the refiner side, wherein the refiner bars have a refiner bar height, and wherein adjacent refiner bars and the substrate define grooves between the adjacent bars, and protrusions disposed in the grooves, wherein the protrusions have a protrusion height, wherein the protrusion height is 30% or less of the refiner bar height.
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公开(公告)号：US11174592B2
公开(公告)日：2021-11-16
申请号：US16362070
申请日：2019-03-22
Applicant: Andritz Inc.
Inventor： Luc Gingras
Abstract: A disperser-refiner plate segment includes a refining section disposed radially outward from a dispersion section. Teeth in the dispersion section have a height that exceeds a height of refining bars in the refining section.
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公开(公告)号：US20210317611A1
公开(公告)日：2021-10-14
申请号：US17229982
申请日：2021-04-14
Applicant: ANDRITZ INC.
Inventor： Gregory Alan Imig
IPC: D21C11/10
Abstract: A startup burner assembly for a recovery boiler, the startup burner assembly includes a housing having a burner end and a second end distal to the burner end; a main fuel conduit disposed within the housing; and high-pressure air conduits disposed within the burner end of the housing. The high-pressure air conduits include angled air injection nozzles configured to direct high-pressure air exiting the burner end of the startup burner assembly in a rotational direction.
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公开(公告)号：US20210271234A1
公开(公告)日：2021-09-02
申请号：US17324859
申请日：2021-05-19
Applicant: Andritz Inc.
Inventor： Arthur Gooch
IPC: G05B19/418 , G06N3/08
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for training an industrial plant controller that controls operation of an industrial plant. In one aspect, a method comprises generating training data using an industrial plant simulation model that simulates operation of the industrial plant. The industrial plant controller is trained by a reinforcement learning technique using the training data. The industrial plant controller is configured to process an input comprising a state vector characterizing a state of the industrial plant in accordance with a plurality of industrial plant controller parameters to generate an action selection policy output that defines a control action to be performed to control the operation of the industrial plant.
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