BR0213705A - Método e sistema para tratamento de polpa - Google Patents
Método e sistema para tratamento de polpaInfo
- Publication number
- BR0213705A BR0213705A BR0213705-4A BR0213705A BR0213705A BR 0213705 A BR0213705 A BR 0213705A BR 0213705 A BR0213705 A BR 0213705A BR 0213705 A BR0213705 A BR 0213705A
- Authority
- BR
- Brazil
- Prior art keywords
- pulp
- vessel
- outlet tube
- fragmentation
- outlet pipe
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000013467 fragmentation Methods 0.000 abstract 3
- 238000006062 fragmentation reaction Methods 0.000 abstract 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 1
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
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
-
- 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
- D21C7/00—Digesters
- D21C7/08—Discharge devices
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
"MéTODO E SISTEMA PARA TRATAMENTO DE POLPA". Um sistema para tratar polpa compreende um dispositivo de desidratação (2) para desidratar a polpa para uma concentração de fibra de pelo menos 20%, um vaso fechado para fragmentação de polpa (16) para fragmentar a polpa desidratada, e um tubo de saída (22) a partir do vaso de fragmentação de polpa. Um parafuso de transporte (18) é arranjado no tubo de saída para transportar a polpa fragmentada do vaso de fragmentação de polpa através do tubo de saída através de um vaso reator (6) para branquear a polpa fragmentada por meio de reação com gás ozónio. O tubo de saída (22) é projetado com uma porção de teto levantada (27) de modo que um espaço superior para gás (29) livre de polpa é formado no tubo de saída entre a porção de teto e o parafuso de transporte. Um elemento de restrição de escoamento na forma de uma parede divisória (31) é arranjado no espaço superior para gás no tubo de saída, para restringir o escoamento de gás através do espaço para gás, pelo que, a ação de bombeamento do parafuso de transporte no tubo de saída é diminuída.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0104081A SE520707C2 (sv) | 2001-12-05 | 2001-12-05 | Metod och system för behandling av massa vid ozonblekning |
PCT/SE2002/002229 WO2003048448A1 (en) | 2001-12-05 | 2002-12-04 | Method and system for the treatment of pulp prior to ozone bleaching |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0213705A true BR0213705A (pt) | 2004-10-26 |
Family
ID=20286203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0213705-4A BR0213705A (pt) | 2001-12-05 | 2002-12-04 | Método e sistema para tratamento de polpa |
Country Status (10)
Country | Link |
---|---|
US (1) | US7294227B2 (pt) |
EP (1) | EP1454010B1 (pt) |
JP (1) | JP2005511910A (pt) |
CN (1) | CN1599822A (pt) |
AT (1) | ATE524598T1 (pt) |
AU (1) | AU2002358366A1 (pt) |
BR (1) | BR0213705A (pt) |
CA (1) | CA2462264C (pt) |
SE (1) | SE520707C2 (pt) |
WO (1) | WO2003048448A1 (pt) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1760093B1 (de) * | 2005-08-30 | 2011-12-21 | LANXESS Deutschland GmbH | Verwendung von Katalysatoren für den Metatheseabbau von Nitrilkautschuk |
FI119062B (fi) * | 2006-12-28 | 2008-07-15 | Upm Kymmene Corp | Menetelmä mekaanisen massan valmistamiseksi |
SE542996C2 (en) * | 2018-02-09 | 2020-09-22 | Valmet Oy | A system for transporting biomass material and a method for preventing blow back in said system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5810973A (en) * | 1993-09-21 | 1998-09-22 | Beloit Technologies, Inc. | Apparatus for producing small particles from high consistency wood pulp |
CA2197190A1 (en) | 1994-08-11 | 1996-02-22 | Lewis D. Shackford | Means for gas-sealingly conveying shredded pulp |
SE514416C2 (sv) | 1999-06-10 | 2001-02-19 | Valmet Fibertech Ab | Metod och system för gastät inmatning av massa till en reaktor för ozonblekning |
-
2001
- 2001-12-05 SE SE0104081A patent/SE520707C2/sv unknown
-
2002
- 2002-12-04 CA CA2462264A patent/CA2462264C/en not_active Expired - Fee Related
- 2002-12-04 US US10/497,753 patent/US7294227B2/en not_active Expired - Fee Related
- 2002-12-04 AU AU2002358366A patent/AU2002358366A1/en not_active Abandoned
- 2002-12-04 JP JP2003549622A patent/JP2005511910A/ja not_active Withdrawn
- 2002-12-04 EP EP02792127A patent/EP1454010B1/en not_active Expired - Lifetime
- 2002-12-04 BR BR0213705-4A patent/BR0213705A/pt not_active Application Discontinuation
- 2002-12-04 WO PCT/SE2002/002229 patent/WO2003048448A1/en active Application Filing
- 2002-12-04 CN CN02824099.5A patent/CN1599822A/zh active Pending
- 2002-12-04 AT AT02792127T patent/ATE524598T1/de active
Also Published As
Publication number | Publication date |
---|---|
SE520707C2 (sv) | 2003-08-12 |
US7294227B2 (en) | 2007-11-13 |
EP1454010B1 (en) | 2011-09-14 |
SE0104081L (sv) | 2003-06-06 |
CA2462264A1 (en) | 2003-06-12 |
JP2005511910A (ja) | 2005-04-28 |
EP1454010A1 (en) | 2004-09-08 |
AU2002358366A1 (en) | 2003-06-17 |
CA2462264C (en) | 2010-02-09 |
WO2003048448A1 (en) | 2003-06-12 |
US20050121158A1 (en) | 2005-06-09 |
SE0104081D0 (sv) | 2001-12-05 |
CN1599822A (zh) | 2005-03-23 |
ATE524598T1 (de) | 2011-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |