ES2168122T3 - Metodo y aparato para calentar y presurizar una suspension de pasta de fibras durante el transporte a un reactor de blanqueo. - Google Patents
Metodo y aparato para calentar y presurizar una suspension de pasta de fibras durante el transporte a un reactor de blanqueo.Info
- Publication number
- ES2168122T3 ES2168122T3 ES96908411T ES96908411T ES2168122T3 ES 2168122 T3 ES2168122 T3 ES 2168122T3 ES 96908411 T ES96908411 T ES 96908411T ES 96908411 T ES96908411 T ES 96908411T ES 2168122 T3 ES2168122 T3 ES 2168122T3
- Authority
- ES
- Spain
- Prior art keywords
- reactor
- suspension
- pulp suspension
- pressure
- temperature
- 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.)
- Expired - Lifetime
Links
- 239000000725 suspension Substances 0.000 title abstract 10
- 238000000034 method Methods 0.000 title abstract 3
- 238000010438 heat treatment Methods 0.000 title 1
- 230000002087 whitening effect Effects 0.000 title 1
- 238000004061 bleaching Methods 0.000 abstract 2
- 239000000835 fiber Substances 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 abstract 2
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
- Noodles (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
LA INVENCION SE REFIERE A UN METODO PARA TRATAR UNA SUSPENSION DE PASTA DE FIBRA, QUE COMPRENDE EL TRANSPORTE DE LA SUSPENSION DE PASTA DE FIBRA DESDE UN RECIPIENTE DE MANTENIMIENTO, EN EL QUE HAY PRESION ATMOSFERICA O COMO MAXIMO 1 BAR DE SOBREPRESION Y EN EL QUE LA SUSPENSION DE PASTA ESTA A UNA TEMPERATURA QUE NO EXCEDE DE 95 (GRADOS) C, HASTA UN REACTOR DE BLANQUEADO Y LA INTRODUCCION DE LA SUSPENSION POR EL FONDO DEL REACTOR, QUE TIENE AL MENOS 10 M DE ALTO Y EN CUYA PARTE SUPERIOR HAY UNA SOBREPRESION QUE SUPERA LA PRESION DE SATURACION DEL VAPOR, EN EL CUAL REACTOR LA PASTA SE SOMETE A UN TRATAMIENTO DE BLANQUEADO BAJO PRESION A UNA TEMPERATURA DE REACCION QUE EXCEDE DE 100 (GRADOS) C, ADEMAS DE LO CUAL LA SUSPENSION DE PASTA, DURANTE EL TRANSPORTE DESDE EL RECIPIENTE DE MANTENIMIENTO HASTA EL REACTOR, SE CALIENTA AL MENOS A LA TEMPERATURA DE REACCION. LA SUSPENSION DE PASTA SE BOMBEA A UNA MEZCLADORA CON AYUDA DE UNA PRIMERA BOMBA QUE PROPORCIONA ENTRE 1,5 Y 3 BAR DE SOBREPRESION. EN LA MEZCLADORA, LA SUSPENSION DE PASTA SE MEZCLA CON VAPOR A BAJA PRESION, QUE ESTA A UNA PRESION DE 3 A 8 BAR POR ENCIMA DE LA PRESION ATMOSFERICA Y A UNA TEMPERATURA DE 135 A 155 (GRADOS) C, DE MODO QUE LA TEMPERATURA DE LA SUSPENSION AUMENTA HASTA LA TEMPERATURA DE REACCION DESEADA. DESPUES DE ESO, SE AUMENTA TODAVIA MAS LA PRESION CON AYUDA DE UNA SEGUNDA BOMBA 18 DESPUES DE LA MEZCLADORA, DE MODO QUE SE PUEDE BOMBEAR LA SUSPENSION DE PASTA CALENTADA Y PRESURIZADA POR EL FONDO DEL REACTOR. LA INVENCION TAMBIEN SE REFIERE AL EQUIPO PARA APLICAR EL METODO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9501094A SE516489E8 (sv) | 1995-03-28 | 1995-03-28 | Sätt vid och utrustning för behandling av en fibermassasuspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2168122T3 true ES2168122T3 (es) | 2002-06-01 |
Family
ID=20397694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES96908411T Expired - Lifetime ES2168122T3 (es) | 1995-03-28 | 1996-03-04 | Metodo y aparato para calentar y presurizar una suspension de pasta de fibras durante el transporte a un reactor de blanqueo. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6221208B1 (es) |
| EP (1) | EP0826086B2 (es) |
| JP (1) | JP3817264B2 (es) |
| AT (1) | ATE208444T1 (es) |
| DE (1) | DE69616779T3 (es) |
| ES (1) | ES2168122T3 (es) |
| PT (1) | PT826086E (es) |
| SE (1) | SE516489E8 (es) |
| WO (1) | WO1996030586A1 (es) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| SE522593C2 (sv) * | 1999-07-06 | 2004-02-24 | Kvaerner Pulping Tech | System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material |
| FI20002746A7 (fi) * | 2000-12-14 | 2002-06-15 | Andritz Oy | Menetelmä ja laite massan syöttämiseksi valkaisutorniin |
| US7490975B2 (en) * | 2004-06-07 | 2009-02-17 | Acushnet Company | Golf ball mixing and dispensing apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI53848C (fi) * | 1973-09-03 | 1978-08-10 | Rauma Repola Oy | Foerfarande foer behandling av fibermassa med syre under alkaliska betingelser vid foerhoejt tryck och temperatur |
| US5217575A (en) * | 1988-10-18 | 1993-06-08 | Kamyr Ab | Process for oxygen bleaching using two vertical reactors |
| US5690786A (en) * | 1991-11-26 | 1997-11-25 | Air Products And Chemicals Inc. | Process for the treatment of pulp with oxygen and steam using ejectors |
| US5460696A (en) † | 1993-08-12 | 1995-10-24 | The Boc Group, Inc. | Oxygen delignification method incorporating wood pulp mixing apparatus |
| 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 |
-
1995
- 1995-03-28 SE SE9501094A patent/SE516489E8/sv not_active IP Right Cessation
-
1996
- 1996-03-04 WO PCT/SE1996/000280 patent/WO1996030586A1/en not_active Ceased
- 1996-03-04 AT AT96908411T patent/ATE208444T1/de active
- 1996-03-04 PT PT96908411T patent/PT826086E/pt unknown
- 1996-03-04 DE DE69616779T patent/DE69616779T3/de not_active Expired - Fee Related
- 1996-03-04 JP JP52924396A patent/JP3817264B2/ja not_active Expired - Fee Related
- 1996-03-04 US US08/913,955 patent/US6221208B1/en not_active Expired - Fee Related
- 1996-03-04 EP EP96908411A patent/EP0826086B2/en not_active Expired - Lifetime
- 1996-03-04 ES ES96908411T patent/ES2168122T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| SE9501094D0 (sv) | 1995-03-28 |
| US6221208B1 (en) | 2001-04-24 |
| SE516489E8 (sv) | 2015-10-20 |
| EP0826086B1 (en) | 2001-11-07 |
| ATE208444T1 (de) | 2001-11-15 |
| SE516489C2 (sv) | 2002-01-22 |
| PT826086E (pt) | 2002-04-29 |
| EP0826086B2 (en) | 2008-01-09 |
| JPH11502574A (ja) | 1999-03-02 |
| DE69616779T3 (de) | 2008-05-21 |
| JP3817264B2 (ja) | 2006-09-06 |
| WO1996030586A1 (en) | 1996-10-03 |
| SE516489E (sv) | 2007-10-16 |
| SE9501094L (sv) | 1996-09-29 |
| EP0826086A1 (en) | 1998-03-04 |
| DE69616779D1 (de) | 2001-12-13 |
| DE69616779T2 (de) | 2002-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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