DE69620608D1 - Verfahren und vorrichtung zur behandlung eines schlecht wärmeableitenden materials - Google Patents
Verfahren und vorrichtung zur behandlung eines schlecht wärmeableitenden materialsInfo
- Publication number
- DE69620608D1 DE69620608D1 DE69620608T DE69620608T DE69620608D1 DE 69620608 D1 DE69620608 D1 DE 69620608D1 DE 69620608 T DE69620608 T DE 69620608T DE 69620608 T DE69620608 T DE 69620608T DE 69620608 D1 DE69620608 D1 DE 69620608D1
- Authority
- DE
- Germany
- Prior art keywords
- pulp
- pct
- treating
- bleaching
- reactor
- 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 - Fee Related
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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous processes
-
- 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
- D21C9/001—Modification of pulp properties
- D21C9/007—Modification of pulp properties by mechanical or physical means
-
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0041—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having parts touching each other or tubes assembled in panel form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Paper (AREA)
- Tunnel Furnaces (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Soy Sauces And Products Related Thereto (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI953064A FI953064A (fi) | 1995-06-20 | 1995-06-20 | Menetelmä ja laitteisto massan käsittelemiseksi |
FI954185A FI954185A (fi) | 1995-09-07 | 1995-09-07 | Menetelmä ja laitteisto massan käsittelemiseksi |
FI954407A FI954407A (fi) | 1995-06-20 | 1995-09-19 | Menetelmä ja laitteisto massan käsittelemiseksi |
PCT/FI1996/000330 WO1997001074A1 (en) | 1995-06-20 | 1996-06-03 | Method and apparatus for treating material which conducts heat poorly |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69620608D1 true DE69620608D1 (de) | 2002-05-16 |
DE69620608T2 DE69620608T2 (de) | 2002-10-31 |
Family
ID=27241639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69620608T Expired - Fee Related DE69620608T2 (de) | 1995-06-20 | 1996-06-03 | Verfahren und vorrichtung zur behandlung eines schlecht wärmeableitenden materials |
Country Status (10)
Country | Link |
---|---|
US (1) | US6136145A (de) |
EP (1) | EP0834051B1 (de) |
AT (1) | ATE216062T1 (de) |
AU (2) | AU5823896A (de) |
CA (2) | CA2224685C (de) |
DE (1) | DE69620608T2 (de) |
ES (1) | ES2174076T3 (de) |
PT (1) | PT834051E (de) |
SE (1) | SE9704696D0 (de) |
WO (3) | WO1997000997A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
FI111963B (fi) | 1998-01-30 | 2003-10-15 | Andritz Oy | Menetelmä ja laite heikosti lämpöä johtavan materiaalin käsittelemiseksi |
US20050051288A1 (en) * | 2003-09-09 | 2005-03-10 | Caifang Yin | Extended retention and medium consistency pulp treatment |
US7297225B2 (en) * | 2004-06-22 | 2007-11-20 | Georgia-Pacific Consumer Products Lp | Process for high temperature peroxide bleaching of pulp with cool discharge |
SE529475C2 (sv) * | 2006-11-22 | 2007-08-21 | Metso Fiber Karlstad Ab | Metod för att återvinna värmeenergi från svartlut |
FR2910027B1 (fr) * | 2006-12-13 | 2009-11-06 | Itt Mfg Enterprises Inc | Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature |
US8877012B2 (en) * | 2012-10-24 | 2014-11-04 | Andritz Inc. | Piping system from reactor to separator and method to control process flow |
CN106958161B (zh) * | 2017-03-13 | 2018-06-01 | 广西大学 | 一种纸浆高温二氧化氯漂白段余热回收方法 |
CN115491916A (zh) * | 2022-09-22 | 2022-12-20 | 牡丹江恒丰纸业股份有限公司 | 一种针对高浓浆体无动力设备输送系统及输送方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191116948A (en) * | 1911-07-24 | 1912-07-18 | Charles Algernon Parsons | Improvements in and relating to Means for the Heating or Cooling of Fluids. |
US2606114A (en) * | 1946-11-01 | 1952-08-05 | Sidney D Wells | Continuous pulp digester |
US3302701A (en) * | 1965-10-19 | 1967-02-07 | David G Thomas | Turbulence promoter for increased heat and mass transfer |
DE1551512A1 (de) * | 1967-06-22 | 1970-05-21 | Roland Soelch | Waermeaustauscher |
DE2808854C2 (de) * | 1977-05-31 | 1986-05-28 | Gebrüder Sulzer AG, 8401 Winterthur | Mit Einbauten versehener Strömungskanal für ein an einem indirekten Austausch, insbesondere Wärmeaustausch, beteiligtes Medium |
US4274913A (en) * | 1978-05-23 | 1981-06-23 | Toyo Pulp Co., Ltd. | Process for producing alkali pulp |
US4849052A (en) * | 1983-08-24 | 1989-07-18 | Beloit Corporation | Batch digester multi-stage pulping process |
HU199979B (en) * | 1986-04-21 | 1990-03-28 | Energiagazdalkodasi Intezet | Method and heat-exchanger insert for improving the heat transfer of media flowing in the tubes of heat exchanger and having inhomogeneous composition and/or inhomogeneous physical state |
FI78131C (fi) * | 1986-12-17 | 1993-11-15 | Ahlstroem Oy | Foerfarande foer uppvaermning eller avkylning av massor och vaermevaexlare foer utfoerande av foerfarandet |
US4798652A (en) * | 1987-10-19 | 1989-01-17 | Peter Joyce | Peroxide bleaching of mechanical pulps |
US4865460A (en) * | 1988-05-02 | 1989-09-12 | Kama Corporation | Static mixing device |
US5217575A (en) * | 1988-10-18 | 1993-06-08 | Kamyr Ab | Process for oxygen bleaching using two vertical reactors |
US5203963A (en) * | 1991-10-21 | 1993-04-20 | A. Ahlstrom Corporation | Continuous treatment of small chips |
AU5104493A (en) * | 1992-10-23 | 1994-05-24 | University Of New Brunswick | Low temperature bleaching |
ZA955290B (en) * | 1994-07-11 | 1996-12-27 | Ingersoll Rand Co | Peroxide bleaching process for cellulosic and lignocellulosic material |
-
1996
- 1996-06-03 PT PT96919850T patent/PT834051E/pt unknown
- 1996-06-03 AT AT96919850T patent/ATE216062T1/de not_active IP Right Cessation
- 1996-06-03 WO PCT/FI1996/000331 patent/WO1997000997A1/en active Application Filing
- 1996-06-03 ES ES96919850T patent/ES2174076T3/es not_active Expired - Lifetime
- 1996-06-03 DE DE69620608T patent/DE69620608T2/de not_active Expired - Fee Related
- 1996-06-03 AU AU58238/96A patent/AU5823896A/en not_active Abandoned
- 1996-06-03 WO PCT/FI1996/000330 patent/WO1997001074A1/en active IP Right Grant
- 1996-06-03 CA CA002224685A patent/CA2224685C/en not_active Expired - Fee Related
- 1996-06-03 EP EP96919850A patent/EP0834051B1/de not_active Expired - Lifetime
- 1996-06-14 AU AU61281/96A patent/AU6128196A/en not_active Abandoned
- 1996-06-14 WO PCT/FI1996/000353 patent/WO1997000998A1/en active Application Filing
- 1996-06-14 US US08/981,419 patent/US6136145A/en not_active Expired - Fee Related
- 1996-06-14 CA CA002225023A patent/CA2225023C/en not_active Expired - Fee Related
-
1997
- 1997-12-16 SE SE9704696A patent/SE9704696D0/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE9704696L (sv) | 1997-12-16 |
CA2224685C (en) | 2003-05-20 |
DE69620608T2 (de) | 2002-10-31 |
PT834051E (pt) | 2002-08-30 |
AU5823896A (en) | 1997-01-22 |
WO1997000998A1 (en) | 1997-01-09 |
EP0834051A1 (de) | 1998-04-08 |
CA2224685A1 (en) | 1997-01-09 |
WO1997001074A1 (en) | 1997-01-09 |
ES2174076T3 (es) | 2002-11-01 |
WO1997000997A1 (en) | 1997-01-09 |
CA2225023A1 (en) | 1997-01-09 |
AU6128196A (en) | 1997-01-22 |
CA2225023C (en) | 2003-01-28 |
US6136145A (en) | 2000-10-24 |
EP0834051B1 (de) | 2002-04-10 |
ATE216062T1 (de) | 2002-04-15 |
SE9704696D0 (sv) | 1997-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: ANDRITZ OY, HELSINKI, FI |
|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |