SE0002668D0 - Refiner control - Google Patents
Refiner controlInfo
- Publication number
- SE0002668D0 SE0002668D0 SE0002668A SE0002668A SE0002668D0 SE 0002668 D0 SE0002668 D0 SE 0002668D0 SE 0002668 A SE0002668 A SE 0002668A SE 0002668 A SE0002668 A SE 0002668A SE 0002668 D0 SE0002668 D0 SE 0002668D0
- Authority
- SE
- Sweden
- Prior art keywords
- acoustic
- measured
- refiner
- fibres
- spectral component
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/002—Control devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/014—Resonance or resonant frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/024—Mixtures
- G01N2291/02416—Solids in liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02836—Flow rate, liquid level
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02872—Pressure
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Paper (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0002668A SE516861C3 (sv) | 2000-07-14 | 2000-07-14 | Raffinörstryrning |
AU2001267966A AU2001267966A1 (en) | 2000-07-14 | 2001-06-27 | Refiner control |
US10/332,954 US6935164B2 (en) | 2000-07-14 | 2001-06-27 | Refiner control |
PCT/SE2001/001466 WO2002006815A1 (en) | 2000-07-14 | 2001-06-27 | Refiner control |
JP2002512675A JP2004504509A (ja) | 2000-07-14 | 2001-06-27 | リファイナの制御 |
EP01945856A EP1311845A1 (en) | 2000-07-14 | 2001-06-27 | Refiner control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0002668A SE516861C3 (sv) | 2000-07-14 | 2000-07-14 | Raffinörstryrning |
Publications (4)
Publication Number | Publication Date |
---|---|
SE0002668D0 true SE0002668D0 (sv) | 2000-07-14 |
SE0002668L SE0002668L (sv) | 2002-01-15 |
SE516861C2 SE516861C2 (sv) | 2002-03-12 |
SE516861C3 SE516861C3 (sv) | 2002-04-17 |
Family
ID=20280498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0002668A SE516861C3 (sv) | 2000-07-14 | 2000-07-14 | Raffinörstryrning |
Country Status (6)
Country | Link |
---|---|
US (1) | US6935164B2 (sv) |
EP (1) | EP1311845A1 (sv) |
JP (1) | JP2004504509A (sv) |
AU (1) | AU2001267966A1 (sv) |
SE (1) | SE516861C3 (sv) |
WO (1) | WO2002006815A1 (sv) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7047809B2 (en) * | 2003-01-21 | 2006-05-23 | Applied Sonics, Incorporated | Ultrasonic monitor of material composition and particle size |
JP4638477B2 (ja) * | 2004-02-27 | 2011-02-23 | ダプロックス アクチボラゲット | 繊維濃度を測定するための方法及び装置 |
US10318284B2 (en) * | 2008-06-02 | 2019-06-11 | International Business Machines Corporation | System and method of generating and managing computing tasks |
AU2010282572B2 (en) | 2009-08-11 | 2015-07-02 | Cidra Corporate Services Inc. | Performance monitoring of individual hydrocyclones using sonar-based slurry flow measurement |
FI130567B (sv) * | 2019-06-06 | 2023-11-21 | Valmet Technologies Oy | Anordning och förfarande för behandling av fibermassa |
CA3158244A1 (en) * | 2019-11-14 | 2021-05-20 | Mark D. Schroen | Predictive control system and method for brown washing treatment in pulp mills |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3710615A (en) * | 1971-03-25 | 1973-01-16 | Trw Inc | Acoustic particle concentration measuring instrument and method |
US3914984A (en) * | 1972-05-08 | 1975-10-28 | Richard A Wade | System for measuring solids and/or immiscible liquids in liquids |
FI71018C (fi) * | 1983-07-06 | 1986-10-27 | Valmet Oy | Foerfarande baserande sig pao ekolodning med ultraljud foer at foelja med banbildningen och/eller massasuspensionsstroe mmn pao en viradel och/eller i en inloppslaoda i en pappers makin och anordning foer tillaempning av foerfarandet samt vanendning av foerfarandet och/eller anordningen |
WO1991010904A1 (en) * | 1990-01-11 | 1991-07-25 | Pulp And Paper Research Institute Of Canada | Acoustic emission monitoring of wood chip refiners |
US5600073A (en) * | 1994-11-02 | 1997-02-04 | Foster-Miller, Inc. | Method and system for analyzing a two phase flow |
NL1003595C2 (nl) * | 1996-04-10 | 1997-10-14 | Tno | Werkwijze en inrichting voor het karakteriseren van suspensies. |
SE9703450L (sv) | 1997-09-24 | 1999-03-25 | Sca Graphic Sundsvall Ab | Sätt och anordning för processövervakning |
CA2306767C (en) * | 1997-10-13 | 2007-05-01 | Rosemount Inc. | Communication technique for field devices in industrial processes |
FR2772476B1 (fr) | 1998-03-31 | 2000-03-03 | Centre Nat Rech Scient | Procede et dispositif pour le suivi de transitions de phase |
RU2250438C9 (ru) | 1998-06-26 | 2005-08-27 | Сидрэ Копэрейшн | Устройство измерения параметров текучих сред в трубе и способ его осуществления |
US6523395B1 (en) * | 1998-07-07 | 2003-02-25 | Metso Automation Oy | Method and measuring apparatus for measuring freeness |
-
2000
- 2000-07-14 SE SE0002668A patent/SE516861C3/sv not_active IP Right Cessation
-
2001
- 2001-06-27 WO PCT/SE2001/001466 patent/WO2002006815A1/en active Application Filing
- 2001-06-27 US US10/332,954 patent/US6935164B2/en not_active Expired - Fee Related
- 2001-06-27 AU AU2001267966A patent/AU2001267966A1/en not_active Abandoned
- 2001-06-27 EP EP01945856A patent/EP1311845A1/en not_active Withdrawn
- 2001-06-27 JP JP2002512675A patent/JP2004504509A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
SE0002668L (sv) | 2002-01-15 |
US20040022128A1 (en) | 2004-02-05 |
JP2004504509A (ja) | 2004-02-12 |
SE516861C2 (sv) | 2002-03-12 |
SE516861C3 (sv) | 2002-04-17 |
AU2001267966A1 (en) | 2002-01-30 |
US6935164B2 (en) | 2005-08-30 |
WO2002006815A1 (en) | 2002-01-24 |
EP1311845A1 (en) | 2003-05-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed | ||
NUG | Patent has lapsed |