CA2140563A1 - Method and apparatus for mixing gaseous chemical to fibre suspension - Google Patents

Method and apparatus for mixing gaseous chemical to fibre suspension

Info

Publication number
CA2140563A1
CA2140563A1 CA002140563A CA2140563A CA2140563A1 CA 2140563 A1 CA2140563 A1 CA 2140563A1 CA 002140563 A CA002140563 A CA 002140563A CA 2140563 A CA2140563 A CA 2140563A CA 2140563 A1 CA2140563 A1 CA 2140563A1
Authority
CA
Canada
Prior art keywords
gas
mixing
fiber suspension
mixer
fibre suspension
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002140563A
Other languages
French (fr)
Other versions
CA2140563C (en
Inventor
Matti Manninen
Kari Peltonen
Reijo Vesala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz Oy
Original Assignee
Matti Manninen
Kari Peltonen
Reijo Vesala
A. Ahlstrom Corporation
Andritz-Ahlstrom Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FI940371A external-priority patent/FI98794C/en
Application filed by Matti Manninen, Kari Peltonen, Reijo Vesala, A. Ahlstrom Corporation, Andritz-Ahlstrom Oy filed Critical Matti Manninen
Publication of CA2140563A1 publication Critical patent/CA2140563A1/en
Application granted granted Critical
Publication of CA2140563C publication Critical patent/CA2140563C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2326—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles adding the flowing main component by suction means, e.g. using an ejector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
    • B01F23/237613—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/707—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms the paddles co-operating, e.g. intermeshing, with elements on the receptacle wall
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor

Abstract

The present invention relates to a method of and an apparatus for mixing large amounts of gas with medium consistency (8 - 25 %) fiber suspensions by means of rotatable rotor arranged within a mixing chamber provided with various mixing members, the method mainly comprising the steps of a) introducing said gas and said fiber suspension into the mixer, b) mixing said gas with the fluidized pulp while simultaneously throttling the flow in order to prevent the influence of the pressure fluctuations due to the inlet and/or outlet flow of the fiber suspension on the mixing process and minimizing gas separation, and c) discharging the gas-fiber suspension mixture from the mixer.
CA002140563A 1994-01-25 1995-01-19 Method and apparatus for mixing gaseous chemical to fibre suspension Expired - Lifetime CA2140563C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI940371 1994-01-25
FI940371A FI98794C (en) 1994-01-25 1994-01-25 A method and apparatus for mixing a gaseous chemical into a fiber suspension
FI945425A FI103019B (en) 1994-01-25 1994-11-18 Process and apparatus for mixing a gaseous chemical in a fiber suspension
FI945425 1994-11-18

Publications (2)

Publication Number Publication Date
CA2140563A1 true CA2140563A1 (en) 1995-07-26
CA2140563C CA2140563C (en) 2001-03-27

Family

ID=26159661

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002140563A Expired - Lifetime CA2140563C (en) 1994-01-25 1995-01-19 Method and apparatus for mixing gaseous chemical to fibre suspension

Country Status (8)

Country Link
US (1) US5791778A (en)
EP (1) EP0664150B1 (en)
JP (2) JP3808520B2 (en)
AT (1) ATE171883T1 (en)
CA (1) CA2140563C (en)
DE (1) DE69505159T2 (en)
ES (1) ES2124921T3 (en)
FI (1) FI103019B (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI104621B (en) * 1996-06-03 2000-03-15 Ahlstroem Oy A method and apparatus for mixing a second medium with a first medium
US6193406B1 (en) 1996-12-20 2001-02-27 Andritz-Ahlstrom Oy Method and apparatus for mixing pulp a suspension with a fluid medium with a freely rotatable mixing rotor
US6386751B1 (en) 1997-10-24 2002-05-14 Diffusion Dynamics, Inc. Diffuser/emulsifier
US6702949B2 (en) 1997-10-24 2004-03-09 Microdiffusion, Inc. Diffuser/emulsifier for aquaculture applications
US7654728B2 (en) 1997-10-24 2010-02-02 Revalesio Corporation System and method for therapeutic application of dissolved oxygen
US7128278B2 (en) 1997-10-24 2006-10-31 Microdiffusion, Inc. System and method for irritating with aerated water
US20050173082A1 (en) * 1998-08-24 2005-08-11 Arbozon Oy Ltd. Bleaching of medium consistency pulp with ozone without high shear mixing
KR20020011117A (en) * 2000-07-31 2002-02-07 다우 코닝 도레이 실리콘 캄파니 리미티드 Continuous mixing apparatus
US6880966B1 (en) 2002-07-17 2005-04-19 Itt Manufacturing Enterprises, Inc. Inline high turbulence mixer having combined oblique and transverse stationary vanes
SE524465E (en) 2002-12-12 2004-08-10 Metso Paper Inc Apparatus for mixing a gaseous or liquid medium with a pulp suspension
SE524454E (en) * 2002-12-12 2004-08-10 Metso Paper Inc Apparatus for mixing a gaseous or liquid chemical medium with a pulp suspension
SE524466E (en) * 2002-12-12 2004-08-10 Metso Paper Inc Apparatus for mixing a gaseous or liquid chemical medium with a pulp suspension
WO2008115290A2 (en) 2006-10-25 2008-09-25 Revalesio Corporation Methods of wound care and treatment
US8597689B2 (en) 2006-10-25 2013-12-03 Revalesio Corporation Methods of wound care and treatment
AU2007308838B2 (en) 2006-10-25 2014-03-13 Revalesio Corporation Mixing device and output fluids of same
US8784897B2 (en) 2006-10-25 2014-07-22 Revalesio Corporation Methods of therapeutic treatment of eyes
US8609148B2 (en) 2006-10-25 2013-12-17 Revalesio Corporation Methods of therapeutic treatment of eyes
US8784898B2 (en) 2006-10-25 2014-07-22 Revalesio Corporation Methods of wound care and treatment
US8445546B2 (en) 2006-10-25 2013-05-21 Revalesio Corporation Electrokinetically-altered fluids comprising charge-stabilized gas-containing nanostructures
US9745567B2 (en) 2008-04-28 2017-08-29 Revalesio Corporation Compositions and methods for treating multiple sclerosis
US10125359B2 (en) 2007-10-25 2018-11-13 Revalesio Corporation Compositions and methods for treating inflammation
US9523090B2 (en) 2007-10-25 2016-12-20 Revalesio Corporation Compositions and methods for treating inflammation
WO2009087193A1 (en) * 2008-01-11 2009-07-16 Sulzer Pumpen Ag Method and apparatus for mixing of fluids
MX2010011856A (en) 2008-05-01 2011-02-15 Revalesio Corp Compositions and methods for treating digestive disorders.
US8815292B2 (en) 2009-04-27 2014-08-26 Revalesio Corporation Compositions and methods for treating insulin resistance and diabetes mellitus
CN102985073B (en) 2010-05-07 2015-03-25 利发利希奥公司 Compositions and methods for enhancing physiological performance and recovery time
CN103347500A (en) 2010-08-12 2013-10-09 利发利希奥公司 Compositions and methods for treatment of taupathy
CN109267413B (en) * 2018-10-26 2023-09-26 华南理工大学 Preparation method and device for oxygen-series efficient clean bleached paper pulp

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
US2148178A (en) * 1938-06-30 1939-02-21 Wallace M Kendrick Emulsifier
US2960318A (en) * 1956-05-15 1960-11-15 Separation L Emulsion Et Le Me Mixing, emulsifying, homogenizing and the like machines
US2965362A (en) * 1957-11-13 1960-12-20 Ingbuero Dipl Ing Friedrich He Device for mixing and homogenizing
US3293117A (en) * 1963-03-27 1966-12-20 Improved Machinery Inc High density pulp mixing
FR1400173A (en) * 1964-07-03 1965-05-21 Kamyr Ab Mixer, in particular for mixing bleaching agents with cellulose pulp
US3525504A (en) * 1968-09-26 1970-08-25 Monsanto Co Additive mixer
US4288288A (en) * 1979-06-15 1981-09-08 Weyerhaeuser Company Apparatus for mixing chemicals into pulp at a refiner inlet
SE419603B (en) * 1979-11-27 1981-08-17 Kamyr Ab APPLICATION FOR MIXING TREATMENT AGENTS IN SUSPENSIONS
SE445052C (en) * 1980-03-13 1987-10-29 Sunds Defibrator SET AND DEVICE FOR CONTINUOUS MIXING OF GAS AND / OR LIQUID TREATMENTS IN A MASSAGE SUSPENSION
US4355121A (en) * 1981-04-09 1982-10-19 General Electric Company Heat strength curable silicone rubber compositions
US4577974A (en) * 1984-05-04 1986-03-25 Kamyr, Inc. Medium consistency mixer rotor and stator construction
SE461134B (en) * 1986-11-18 1990-01-15 Hedemora Ab PROCEDURE AND DEVICE FOR MIXING CHEMICALS IN FIBER MASS
US4820381A (en) * 1987-02-25 1989-04-11 Internationa Paper Company Pulp refiner with fluidizing inlet
DE3717058A1 (en) * 1987-05-21 1988-12-08 Bayer Ag MIXER FOR MIXING AT LEAST TWO FLOWABLE SUBSTANCES, ESPECIALLY UNDERSTANDING OR. INITIATING A REACTION DURING MIXING
US5088831A (en) * 1988-02-09 1992-02-18 Sunds Defibrator Industries Aktiebolag Device for treating material mixtures
DE8807080U1 (en) * 1988-05-31 1988-08-04 Ika-Maschinenbau Janke & Kunkel Gmbh & Co Kg, 7813 Staufen, De
SE468789B (en) * 1991-09-05 1993-03-22 Sunds Defibrator Ind Ab PROCEDURE AND DEVICE FOR MIXING TREATMENT MEDIUM IN A MASS PENSION
FI95821B (en) * 1991-10-18 1995-12-15 Ahlstroem Oy A method and apparatus for mixing a gas with a medium and a bleaching process applying the method
US5263774A (en) * 1992-03-04 1993-11-23 Kamyr, Inc. Rotor for increasing mixing efficiency in a medium consistency mixer

Also Published As

Publication number Publication date
EP0664150B1 (en) 1998-10-07
CA2140563C (en) 2001-03-27
DE69505159D1 (en) 1998-11-12
FI103019B1 (en) 1999-04-15
JP3808520B2 (en) 2006-08-16
EP0664150A1 (en) 1995-07-26
ES2124921T3 (en) 1999-02-16
JPH07268792A (en) 1995-10-17
DE69505159T2 (en) 1999-03-25
US5791778A (en) 1998-08-11
JP3819017B2 (en) 2006-09-06
FI945425A (en) 1995-07-26
ATE171883T1 (en) 1998-10-15
FI103019B (en) 1999-04-15
FI945425A0 (en) 1994-11-18
JP2005299076A (en) 2005-10-27

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Effective date: 20150119