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公开(公告)号：US20210072736A1
公开(公告)日：2021-03-11
申请号：US17009047
申请日：2020-09-01
Applicant: Andritz Inc.
Inventor： Elisa De Podestà Gomes , Everton Rocha , Matheus Sessim Gomes , Hamilton Fabio Borges
IPC: G05B19/418
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, that optimize operation of manufacturing plants by adjusting the operation of manufacturing devices in manufacturing plants based on an assessment of their operations. Methods may include obtaining, from a first set of sensors, vibration data specifying vibration in a manufacturing device of a manufacturing plant. The vibration data may be processed to identify a vibration signature. Based on the vibration signature and known vibration signatures, a first operational state of the manufacturing device may be determined. One or more operational characteristics of the manufacturing device may be adjusted based on the first operational state of the manufacturing device, to achieve a second operational state.
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公开(公告)号：US20200246801A1
公开(公告)日：2020-08-06
申请号：US16782519
申请日：2020-02-05
Applicant: Andritz Inc.
Inventor： Arvind M. Singhal , Long Nguyen
Abstract: This disclosure relates to refiner plate segments having feeding grooves having a first width at a first end of the feeding groove, wherein the first end of the feeding groove is disposed closer to an inner diameter of the refiner plate segment, and a second end of the feeding groove having a second width, wherein the second end of the feeding groove is disposed closer to the outer diameter than the first end and wherein the second width is less than the first width. It is believed that the increased width of the feeding groove at the inner diameter, coupled with the change in angle or curve of the feed groove from a feeding angle to a holding angle such that the centrifugal force applied to the lignocellulosic material surpasses the plugging force, allows for improved hydraulic capacity over the refiner plate segment without reducing refining efficiency.
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公开(公告)号：US20200246733A1
公开(公告)日：2020-08-06
申请号：US16775744
申请日：2020-01-29
Applicant: Andritz Inc.
Inventor： Todd GRACE , Kent STUBBLEFIELD
IPC: B01D35/02
Abstract: A removable filter plate for a rotary drum filter that reduces instances of welding to secure the filter plate to the drum and obviates the need for cap strips. An exemplary filter plate assembly in accordance with this disclosure comprises a filter plate and an engagement assembly, wherein the engager of the engagement assembly is configured to extend in a lateral direction toward the leading end or the trailing end of the filter plate, wherein an extended engager having an engagement end disposed under a shelf of the adjacent top hat mounting assembly defines a closed position, and wherein a retracted engager defines an open position.
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公开(公告)号：US10697117B2
公开(公告)日：2020-06-30
申请号：US14936524
申请日：2015-11-09
Applicant: ANDRITZ INC.
Inventor： Luc Gingras , Tobias Michel
IPC: D21D1/30
Abstract: A rotor cap assembly has been conceived using multiple wedge-shaped rotor cap segments, in which the cap segments are disposed on a cap segment retainer and in which the cap segment retainer pilots the multiple rotor cap segments at a diameter intermediate the cap segments' outer diameter and the cap segments' middle diameter. By piloting multiple rotor cap segments with retaining means on the cap segment retainer and positioning means on the multiple cap segments, the rotor cap segments and cap segment retainer assembly may be fixed to a plate holder or directly to a rotor disc of a refiner without substantially altering either the plate holder or the rotor disc.
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公开(公告)号：US10557235B2
公开(公告)日：2020-02-11
申请号：US16040333
申请日：2018-07-19
Applicant: Andritz Inc.
Inventor： Mark LeBel
Abstract: The problem of runaway smelt explosions due to a sudden influx of smelt into a dissolving tank is mitigated by a system comprising an ultrasonic transducer configured to emit ultrasonic waves toward the dissolving tank at a frequency above 20 kilohertz. A system comprising the ultrasonic transducer may further comprise sensors and a data processor configured to regulate the properties of the ultrasonic waves in response to process conditions affecting the smelt flow.
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Patent Agency Ranking
公开(公告)号：US20190388809A1
公开(公告)日：2019-12-26
申请号：US16438732
申请日：2019-06-12
Applicant: Andritz Inc.
Inventor： Lindsay Brandino Rawls , Todd S. Grace
IPC: B01D33/067 , B01D33/073 , B01D33/74
Abstract: A rotary drum filter comprising one or more divider plates disposed between the drum's outer surface and grids disposed radially outward from the drum's outer surface. The divider plates are desirably diagonally disposed along the drum's outer surface and have at least one end disposed near a drainage hole. The divider plates and open sections under the grids between circumferentially adjacent grids permits filtrate to flow under the grids. The divider plates and open sections under the grids permit the filtrate to flow into the nearest drainage hole while increasing the run underneath the grids, thereby permitting more filtrate to exit through a limited number of drainage holes.
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公开(公告)号：US10352919B2
公开(公告)日：2019-07-16
申请号：US15058734
申请日：2016-03-02
Applicant: Andritz Inc.
Inventor： Vesa Kaipainen , Scott Arthur Pope , Keith Vogel
Abstract: This disclosure describes a level indicator assembly for measuring the level of solids in a vessel. The level indicator may desirably comprise a solid shaft extending into a vessel. The shaft may have paddle connected to an interior end of the shaft and an external sensor attached to an exterior end of the shaft. A support structure may engage the sensor to prevent at least a portion of the sensor from moving. By keeping a portion of the sensor stationary, the sensor may measure the change in torsional force exerted on the shaft. By locating the sensor external to the vessel, operators may remove and replace sensors without accessing either the vessel interior or the portions of the level indicator assembly that extend into the vessel.
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公开(公告)号：US20190184404A1
公开(公告)日：2019-06-20
申请号：US16220377
申请日：2018-12-14
Applicant: Andritz Inc.
Inventor： Marc BERGER , Luc GINGRAS
Abstract: This disclosure relates to a refiner plate segment, mechanical refiners, and methods to manufacture a refiner plate segment having one or more water channels disposed in a variable substrate profile along the radial length of a refiner plate segment base and disposed between the refiner plate segment inlet and the primary refining section, wherein the variable substrate profile comprises an undulating curve configured to complement a second undulating curve on an opposing refiner plate, and wherein dimensions of the one or more water channels are sufficiently narrow to prevent wood chips from entering the water channels and sufficiently wide to provide a bypass path for the free water.
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公开(公告)号：US20190093950A1
公开(公告)日：2019-03-28
申请号：US16133365
申请日：2018-09-17
Applicant: Andritz Inc.
Inventor： Kimmo Peltonen
Abstract: This application discloses exemplary processes and systems for reducing mineral ring accumulation in calcination kiln. The processes and systems comprise inserting non-condensable gases (“NCGs”) in a preheating zone of a calcination kiln, upstream of the burner end. The pre -heating zone may be characterized by temperatures ranging from 1,300° F. to 1,750° F. The system may desirably comprise a plenum for inserting the NCGs into the rotating calcination kiln at the pre-heating zone.
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公开(公告)号：US20190024310A1
公开(公告)日：2019-01-24
申请号：US16040333
申请日：2018-07-19
Applicant: Andritz Inc.
Inventor： Mark LeBel
Abstract: The problem of runaway smelt explosions due to a sudden influx of smelt into a dissolving tank is mitigated by a system comprising an ultrasonic transducer configured to emit ultrasonic waves toward the dissolving tank at a frequency above 20 kilohertz. A system comprising the ultrasonic transducer may further comprise sensors and a data processor configured to regulate the properties of the ultrasonic waves in response to process conditions affecting the smelt flow.
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