ATE169517T1 - Verfahren und vorrichtung zum mischen von gas in eine faser-suspension und bleichverfahren, das das genannte verfahren anwendet - Google Patents

Verfahren und vorrichtung zum mischen von gas in eine faser-suspension und bleichverfahren, das das genannte verfahren anwendet

Info

Publication number
ATE169517T1
ATE169517T1 AT92921912T AT92921912T ATE169517T1 AT E169517 T1 ATE169517 T1 AT E169517T1 AT 92921912 T AT92921912 T AT 92921912T AT 92921912 T AT92921912 T AT 92921912T AT E169517 T1 ATE169517 T1 AT E169517T1
Authority
AT
Austria
Prior art keywords
mixing
pct
gas
present
flow
Prior art date
Application number
AT92921912T
Other languages
English (en)
Inventor
Mika Maekelae
Toivo Niskanen
Kari Peltonen
Original Assignee
Ahlstroem 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8533320&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE169517(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy
Application granted granted Critical
Publication of ATE169517T1 publication Critical patent/ATE169517T1/de

Links

Classifications

    • 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
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • 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
    • 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
    • B01F23/2321—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 by moving liquid and gas in counter current
    • 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
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • 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
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
    • B01F23/23365—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced at the radial periphery of the stirrer
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
AT92921912T 1991-10-18 1992-10-16 Verfahren und vorrichtung zum mischen von gas in eine faser-suspension und bleichverfahren, das das genannte verfahren anwendet ATE169517T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI914922A FI95821B (fi) 1991-10-18 1991-10-18 Menetelmä ja laite kaasun sekoittamiseksi väliaineeseen sekä menetelmää soveltava valkaisuprosessi

Publications (1)

Publication Number Publication Date
ATE169517T1 true ATE169517T1 (de) 1998-08-15

Family

ID=8533320

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92921912T ATE169517T1 (de) 1991-10-18 1992-10-16 Verfahren und vorrichtung zum mischen von gas in eine faser-suspension und bleichverfahren, das das genannte verfahren anwendet

Country Status (8)

Country Link
US (1) US5536368A (de)
EP (1) EP0610291B1 (de)
AT (1) ATE169517T1 (de)
CA (1) CA2121505C (de)
DE (1) DE69226644T2 (de)
ES (1) ES2121870T3 (de)
FI (1) FI95821B (de)
WO (1) WO1993007961A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI925558A7 (fi) * 1992-04-22 1993-10-23 Andritz Oy Menetelmä ja laitteisto massan valkaisemiseksi
SE501894C2 (sv) * 1993-10-13 1995-06-12 Kvaerner Pulping Tech Förfarande och anordning för inmixning av fluid i en massasuspension
FI103019B (fi) * 1994-01-25 1999-04-15 Andritz Ahlstrom Oy Menetelmä ja laite kaasumaisen kemikaalin sekoittamiseksi kuitususpens ioon
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
US6027572A (en) * 1997-06-23 2000-02-22 Princeton Trade And Technologt, Inc Cleaning method for removing biofilm and debris from lines and tubing
JP2001520328A (ja) * 1997-10-14 2001-10-30 エイ．アフルストロム オサケユキチュア パルプを加熱する方法および装置
US6579412B2 (en) * 1998-05-08 2003-06-17 L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for ozone bleaching of low consistency pulp
US20050067122A1 (en) * 2000-05-17 2005-03-31 Bijan Kazem Methods of processing lignocellulosic pulp with cavitation
AT413017B (de) * 2002-03-21 2005-10-15 Andritz Ag Maschf Verfahren und vorrichtung zum einmischen von fluiden in fliessfähige medien
AT413018B (de) * 2002-03-21 2005-10-15 Andritz Ag Maschf Verfahren und vorrichtung zum fördern von fliessfähigen medien
US6880966B1 (en) 2002-07-17 2005-04-19 Itt Manufacturing Enterprises, Inc. Inline high turbulence mixer having combined oblique and transverse stationary vanes
KR101977027B1 (ko) * 2012-03-28 2019-05-10 웅진코웨이 주식회사 버블공급기구를 구비한 도기세정장치 및 도기세정장치의 세정방법
CN112156731A (zh) * 2020-09-08 2021-01-01 南京延长反应技术研究院有限公司 一种聚乙醇酸的强化微界面制备系统及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272573A (en) * 1939-04-24 1942-02-10 Phillips Petroleum Co Combined fluid mixer and pump
US2772863A (en) * 1954-08-30 1956-12-04 Pacific Pumps Inc Mixing pump
US3048376A (en) * 1958-04-09 1962-08-07 Curtiss Wright Corp Fluid mixing apparatus
FI62872C (fi) * 1978-06-06 1983-03-10 Ahlstroem Oy Anordning foer silning av fibersuspensioner
US4435085A (en) * 1982-08-06 1984-03-06 Ingersoll-Rand Company Mixer for use in pulp processes
US5279709A (en) * 1987-02-23 1994-01-18 A. Ahlstrom Method and apparatus for improving the control and treatment of fiber suspension flow
US5064093A (en) * 1990-04-16 1991-11-12 W. A. Lane, Inc. Product cup denester

Also Published As

Publication number Publication date
WO1993007961A1 (en) 1993-04-29
EP0610291B1 (de) 1998-08-12
FI914922A7 (fi) 1993-04-19
FI914922A0 (fi) 1991-10-18
US5536368A (en) 1996-07-16
EP0610291A1 (de) 1994-08-17
DE69226644T2 (de) 1999-01-28
CA2121505A1 (en) 1993-04-29
CA2121505C (en) 2003-12-09
ES2121870T3 (es) 1998-12-16
FI95821B (fi) 1995-12-15
DE69226644D1 (de) 1998-09-17

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEIH Change in the person of patent owner
REN Ceased due to non-payment of the annual fee