ES2180269T3 - Procedimiento y aparato para refrigerar y calentar una suspension de fibras. - Google Patents
Procedimiento y aparato para refrigerar y calentar una suspension de fibras.Info
- Publication number
- ES2180269T3 ES2180269T3 ES99901615T ES99901615T ES2180269T3 ES 2180269 T3 ES2180269 T3 ES 2180269T3 ES 99901615 T ES99901615 T ES 99901615T ES 99901615 T ES99901615 T ES 99901615T ES 2180269 T3 ES2180269 T3 ES 2180269T3
- Authority
- ES
- Spain
- Prior art keywords
- fiber suspension
- flow
- suspension
- exchange surface
- procedure
- 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
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0045—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for granular materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Saccharide Compounds (AREA)
- Steroid Compounds (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Procedimiento para calentar o enfriar una suspensión de pasta para la industrial del papel, con una consistencia del 5 - 20%, en cuyo procedimiento la suspensión de fibras se dirige a través de un aparato dotado de superficies de intercambio térmico a fin de calentar o enfriar la suspensión de fibras, de manera que el cambio de temperatura se encuentre los 5 y 20º C, caracterizado porque: a) Una parte de la suspensión de fibras se dirige hacia las citadas superficies de intercambio térmico del aparato a manera de flujo uniforme, prácticamente como flujo tipo pistón, por lo que el caudal de la suspensión de fibra es de menos de 5 m/s, preferentemente de menos de 1 m/s, encontrándose dispuesta dicha superficie de intercambio térmico en la superficie interior del tubo de flujo que forma el único canal de flujo por el que fluye la suspensión de fibras, teniendo el citado tubo un diámetro de más de 0,2 m, preferentemente de más de 0,5 m, y más preferentemente de más de 1 m, pero de menos de 3 m, y preferentemente de menos de 1,5 m; b) El flujo de la suspensión de fibras se estrangula en un punto de estrangulamiento que cierra más del 30%, preferentemente más del 50%, y más preferentemente más del 70% del canal de flujo y, después de estrangulamiento, dicha suspensión de fibras se introduce en una superficie de intercambio térmico como en el paso (a) anterior, de manera que se introduzca sobre dicha superficie de intercambio térmico otra parte de la suspensión de fibras distinta a la del citado paso (a); c) Se repite el paso (b) al menos una vez, de manera que la longitud de la superficie de intercambio térmico entre los puntos de estrangulamiento sea de más 0,1 m, por lo general entre 0,1 - 2 m, y preferentemente entre 0,1 - 0,7 m; y d) Se permite un flujo libre para volver prácticamente al flujo tipo pistón, descargándose después del aparato.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI980217A FI111963B (fi) | 1998-01-30 | 1998-01-30 | Menetelmä ja laite heikosti lämpöä johtavan materiaalin käsittelemiseksi |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2180269T3 true ES2180269T3 (es) | 2003-02-01 |
Family
ID=8550638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES99901615T Expired - Lifetime ES2180269T3 (es) | 1998-01-30 | 1999-01-28 | Procedimiento y aparato para refrigerar y calentar una suspension de fibras. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6354514B1 (es) |
| EP (1) | EP1049906B1 (es) |
| AT (1) | ATE220451T1 (es) |
| CA (1) | CA2318878A1 (es) |
| DE (1) | DE69902087T2 (es) |
| ES (1) | ES2180269T3 (es) |
| FI (1) | FI111963B (es) |
| PT (1) | PT1049906E (es) |
| WO (1) | WO1999039146A1 (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003048668A1 (en) * | 2001-12-04 | 2003-06-12 | Boxsell, Lynette, Mavis | An air and heat exchange apparatus |
| DE10311529B3 (de) * | 2003-03-17 | 2004-09-16 | Tuchenhagen Dairy Systems Gmbh | Vorrichtung zur Einflussnahme auf den Anströmbereich einer Rohrträgerplatte eines Rohrbündel-Wärmeaustauschers |
| JP4079144B2 (ja) * | 2004-12-20 | 2008-04-23 | 株式会社豊田中央研究所 | 燃料噴射弁 |
| US9605913B2 (en) * | 2011-05-25 | 2017-03-28 | Saudi Arabian Oil Company | Turbulence-inducing devices for tubular heat exchangers |
| CN105588469B (zh) * | 2016-01-21 | 2017-05-24 | 华东理工大学 | 流动沸腾入口结构 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU187016B (en) | 1983-02-01 | 1985-10-28 | Energiagazdalkodasi Intezet | Device for improving the heat-transfer coefficient of viscous liquids flowing in the tubes of heat exchangers |
| 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 |
| ES2174076T3 (es) | 1995-06-20 | 2002-11-01 | Andritz Oy | Procedimiento y aparato para el tratamiento de material pobre conductor de calor. |
-
1998
- 1998-01-30 FI FI980217A patent/FI111963B/fi active
-
1999
- 1999-01-28 US US09/581,486 patent/US6354514B1/en not_active Expired - Fee Related
- 1999-01-28 WO PCT/FI1999/000054 patent/WO1999039146A1/en not_active Ceased
- 1999-01-28 EP EP99901615A patent/EP1049906B1/en not_active Expired - Lifetime
- 1999-01-28 AT AT99901615T patent/ATE220451T1/de not_active IP Right Cessation
- 1999-01-28 ES ES99901615T patent/ES2180269T3/es not_active Expired - Lifetime
- 1999-01-28 PT PT99901615T patent/PT1049906E/pt unknown
- 1999-01-28 CA CA002318878A patent/CA2318878A1/en not_active Abandoned
- 1999-01-28 DE DE69902087T patent/DE69902087T2/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FI111963B (fi) | 2003-10-15 |
| EP1049906A1 (en) | 2000-11-08 |
| WO1999039146A1 (en) | 1999-08-05 |
| CA2318878A1 (en) | 1999-08-05 |
| ATE220451T1 (de) | 2002-07-15 |
| DE69902087T2 (de) | 2003-01-23 |
| PT1049906E (pt) | 2002-11-29 |
| FI980217L (fi) | 1999-07-31 |
| DE69902087D1 (de) | 2002-08-14 |
| FI980217A0 (fi) | 1998-01-30 |
| EP1049906B1 (en) | 2002-07-10 |
| US6354514B1 (en) | 2002-03-12 |
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