ZA946724B - Method and apparatus for fluffing high consistency wood pulp to optimize reaction with a bleaching reagent - Google Patents

Method and apparatus for fluffing high consistency wood pulp to optimize reaction with a bleaching reagent

Info

Publication number
ZA946724B
ZA946724B ZA946724A ZA946724A ZA946724B ZA 946724 B ZA946724 B ZA 946724B ZA 946724 A ZA946724 A ZA 946724A ZA 946724 A ZA946724 A ZA 946724A ZA 946724 B ZA946724 B ZA 946724B
Authority
ZA
South Africa
Prior art keywords
high consistency
housing
pin
wood pulp
optimize reaction
Prior art date
Application number
ZA946724A
Other languages
English (en)
Inventor
L Allan Carlsmith
A Sean Vote
Oscar Luthi
Antoine G Abdulmassih
Original Assignee
Ingersoll Rand Co
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
Application filed by Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of ZA946724B publication Critical patent/ZA946724B/xx

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
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
ZA946724A 1993-09-21 1994-09-01 Method and apparatus for fluffing high consistency wood pulp to optimize reaction with a bleaching reagent ZA946724B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/125,053 US5810973A (en) 1993-09-21 1993-09-21 Apparatus for producing small particles from high consistency wood pulp

Publications (1)

Publication Number Publication Date
ZA946724B true ZA946724B (en) 1995-05-24

Family

ID=22417997

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA946724A ZA946724B (en) 1993-09-21 1994-09-01 Method and apparatus for fluffing high consistency wood pulp to optimize reaction with a bleaching reagent

Country Status (12)

Country Link
US (2) US5810973A (fr)
EP (1) EP0750698B1 (fr)
KR (1) KR960705104A (fr)
CN (1) CN1137812A (fr)
AT (1) ATE187990T1 (fr)
BR (1) BR9407701A (fr)
CA (1) CA2171731C (fr)
DE (1) DE69422310T2 (fr)
FI (1) FI961286A (fr)
NO (1) NO961099L (fr)
WO (1) WO1995008667A1 (fr)
ZA (1) ZA946724B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6340409B1 (en) * 1993-04-29 2002-01-22 Lewis Donald Shackford Method for multistage bleaching using gaseous reagent in the first stage with controlled gas release
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
US5944952A (en) * 1995-07-26 1999-08-31 Beloit Technologies, Inc. Method for bleaching high consistency pulp with a gaseous bleaching reagent
US6077396A (en) * 1997-05-16 2000-06-20 Lariviere; Christopher J. Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent
US7013287B1 (en) * 2000-02-22 2006-03-14 Voith Sulzer Paper Technology N. America, Inc. Stock preparation monitoring system and method of same
EP1158088A3 (fr) * 2000-05-26 2003-01-22 Voith Paper Patent GmbH Procédé et dispositif pour le traitement de suspensions fibreuses
SE520707C2 (sv) * 2001-12-05 2003-08-12 Metso Paper Inc Metod och system för behandling av massa vid ozonblekning

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US2627668A (en) * 1949-05-17 1953-02-10 New Jersey Zinc Co Method of contacting solids and gases
US2723194A (en) * 1952-05-06 1955-11-08 Eleanor G Birdseye Process of separating bagasse pith and fiber
US2722163A (en) * 1953-05-29 1955-11-01 E D Jones And Sons Company Refining machine
US2963086A (en) * 1955-09-22 1960-12-06 Pandia Inc Paper machinery
US3293117A (en) * 1963-03-27 1966-12-20 Improved Machinery Inc High density pulp mixing
US3471093A (en) * 1965-06-16 1969-10-07 Fritz Otto Wienert Method for grinding
CA869267A (en) * 1968-05-10 1971-04-27 Pulp And Paper Research Institute Of Canada Process of and apparatus for the bleaching of fibrous cellulosic pulp
US3630828A (en) * 1968-05-13 1971-12-28 Pulp Paper Res Inst Bleaching of a low-density, substantially uncompacted, porous fluffed cellulosic pulp
US3579717A (en) * 1968-08-28 1971-05-25 Continental Carbon Co Apparatus for pelletizing carbon black
CA902859A (en) * 1969-11-26 1972-06-20 Pulp And Paper Research Institute Of Canada Chemical reaction between a solid and a gas
US3785577A (en) * 1972-07-18 1974-01-15 Improved Machinery Inc Apparatus for the gaseous reaction of material
US3814664A (en) * 1972-09-11 1974-06-04 Improved Machinery Inc Gaseous reaction apparatus including a peripheral gas receiving chamber
US3964962A (en) * 1974-02-25 1976-06-22 Ingersoll-Rand Company Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit
US3917176A (en) * 1974-04-10 1975-11-04 Ingersoll Rand Co Disintegrating-and-blowing apparatus for material such as pulp
NO137651C (no) * 1975-10-31 1978-03-29 Myrens Verksted As Fremgangsmaate og apparat til kontinuerlig behandling av findelt fibermateriale eller celluloseholdig masse med gass uten overtrykk.
US4096027A (en) * 1976-02-19 1978-06-20 Kamyr Inc. System for presteaming wood chips at or near atmospheric pressure with minimum displacement of air
US4080249A (en) * 1976-06-02 1978-03-21 International Paper Company Delignification and bleaching of a lignocellulosic pulp slurry with ozone
FI67413C (fi) * 1977-04-27 1985-03-11 Myrens Verksted As Foerfarande foer behandling av finfoerdelad fiberhaltig eller cellulosahaltig massa samt anordning foer utfoerande av foerfarandet
NO142091C (no) * 1977-10-17 1980-06-25 Myrens Verksted As Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse.
US4298426A (en) * 1979-06-15 1981-11-03 Weyerhaeuser Company Method and apparatus for treating pulp with oxygen in a multi-stage bleaching sequence
US4303470A (en) * 1979-06-15 1981-12-01 Weyerhaeuser Company Method and apparatus for mixing gases with a wood pulp slurry
US4464320A (en) * 1980-01-14 1984-08-07 Whitney & Company, Inc. Reaction injection molding system for expanded synthetic articles
US4283251A (en) * 1980-01-24 1981-08-11 Scott Paper Company Ozone effluent bleaching
US4468286A (en) * 1982-03-09 1984-08-28 Myrens Verksted A/S Method of gas treatment of fluffed pulp
US4426256A (en) * 1982-03-09 1984-01-17 Myrens Verksted A/S Apparatus for treating fibrous material with a gas
ATE27625T1 (de) * 1982-04-19 1987-06-15 Bert Steffens Verfahren und vorrichtung zur trennung von zellstofflocken von deren umhuellungen von zellstoff-hygieneartikeln.
US4581104A (en) * 1983-08-11 1986-04-08 Ingersoll-Rand Company Method of reducing the lignin in wood pulp with oxygen gas recirculation
FI76132C (fi) * 1985-10-21 1988-09-09 Rauma Repola Oy Foerfarande och anordning foer inblandning av vaetska eller gas i cellulosamassa.
US4729516A (en) * 1986-04-14 1988-03-08 Williams Patent Crusher And Pulverizer Company Fluff mill
FR2620744A1 (fr) * 1987-09-17 1989-03-24 Degremont Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
FR2661696B1 (fr) * 1990-05-07 1992-07-10 Tag Pulp Ind Procede et installation de cuisson avec prechauffage de matieres ligno-cellulosiques en phase solide.
ATE122421T1 (de) * 1990-05-17 1995-05-15 Union Camp Patent Holding Umweltfreundlicheres verfahren zum bleichen von lignocellulosischen materialien.
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
US5277371A (en) * 1990-10-31 1994-01-11 Weyerhaeuser Company Multi pin rotor fiber fluff generator
EP0492040A1 (fr) * 1990-12-21 1992-07-01 Kamyr, Inc. Réacteur rotatif à ozone pour pâte à papier
CA2046717A1 (fr) * 1991-02-06 1992-08-07 Beloit Technologies, Inc. Methode de traitement de matieres fibreuses au moyen d'un reactif gazeux et appareil connexe
US5087326A (en) * 1991-02-20 1992-02-11 Union Camp Patent Holding, Inc. Rotating pulp bleaching reactor having inner and outer shells and lifting means on the interior surface of the inner shell
ATE156539T1 (de) * 1991-05-24 1997-08-15 Union Camp Patent Holding Zweistufiger reaktor zum bleichen von zellstoff und verfahren zum bleichen mit ozon
CA2151813A1 (fr) * 1992-12-18 1994-07-07 Oscar Luthi Appareil et methode de regulation du blanchiment de la pulpe de bois
US5364038A (en) * 1993-05-11 1994-11-15 Andritz Sprout-Bauer, Inc. Screenless hammermill
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
US5630909A (en) * 1994-11-07 1997-05-20 Beloit Technologies, Inc. Pulp fluffing gas contactor
US5562806A (en) * 1995-03-03 1996-10-08 Beloit Technologies, Inc. Variable angle powered cyclone

Also Published As

Publication number Publication date
FI961286A0 (fi) 1996-03-20
NO961099L (no) 1996-05-13
DE69422310D1 (de) 2000-01-27
EP0750698A1 (fr) 1997-01-02
EP0750698A4 (fr) 1998-01-07
CA2171731C (fr) 2001-02-20
CN1137812A (zh) 1996-12-11
WO1995008667A1 (fr) 1995-03-30
US5626297A (en) 1997-05-06
BR9407701A (pt) 1997-02-04
US5810973A (en) 1998-09-22
ATE187990T1 (de) 2000-01-15
NO961099D0 (no) 1996-03-18
DE69422310T2 (de) 2000-05-18
KR960705104A (ko) 1996-10-09
EP0750698B1 (fr) 1999-12-22
FI961286A (fi) 1996-03-20

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