AU7045998A - Method for optimizing evaporation drying of paper, runnability, and paper quality as well as dryer section that makes use of the method in a paper machine - Google Patents
Method for optimizing evaporation drying of paper, runnability, and paper quality as well as dryer section that makes use of the method in a paper machineInfo
- Publication number
- AU7045998A AU7045998A AU70459/98A AU7045998A AU7045998A AU 7045998 A AU7045998 A AU 7045998A AU 70459/98 A AU70459/98 A AU 70459/98A AU 7045998 A AU7045998 A AU 7045998A AU 7045998 A AU7045998 A AU 7045998A
- Authority
- AU
- Australia
- Prior art keywords
- paper
- web
- drying
- stage
- machine
- 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.)
- Abandoned
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/04—Drying on cylinders on two or more drying cylinders
Landscapes
- Paper (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A method and an equipment for evaporation drying of the paper web that comes from the press section (10) of a paper machine. The method consists of three successive stages I, II and III that are carried out in the direction of progress of the web (W) as follows: (I) in the first stage, the paper web coming from the press section (10) of the paper machine is heated in a short section (L1) of the paper machine in the machine direction quickly to a temperature of 55...85 DEG C, and web breaks of the relatively moist and, thus, weak web (W) are minimized; (II) after the first stage (I), the main evaporation drying of the web (W) is carried out so that the evaporation efficiency (PE) and the rate of increase in the dry solids content (KA) of the web (W) are substantially higher than in the first stage or in the final stage (III), and the web temperature (TW) does substantially not rise while the drying proceeds (Fig. 4); (III) in the final stage, the drying is continued with a decreasing evaporation efficiency (Fig. 3) and with such an average rate of increase in the dry solids content (KA) of the web (W) in the machine direction as is lower than in the preceding stage (II) but higher than in a conventional cylinder drying with single-wire draw so that the paper quality can be controlled at the same time.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI971714A FI971714A7 (en) | 1997-04-22 | 1997-04-22 | Method for optimizing evaporative drying, runnability and paper quality of paper and a paper machine drying section applying the method |
| FI971714 | 1997-04-22 | ||
| PCT/FI1998/000351 WO1998048107A1 (en) | 1997-04-22 | 1998-04-21 | Method for optimizing evaporation drying of paper, runnability, and paper quality as well as dryer section that makes use of the method in a paper machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU7045998A true AU7045998A (en) | 1998-11-13 |
Family
ID=8548699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU70459/98A Abandoned AU7045998A (en) | 1997-04-22 | 1998-04-21 | Method for optimizing evaporation drying of paper, runnability, and paper quality as well as dryer section that makes use of the method in a paper machine |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1012386B1 (en) |
| JP (1) | JP3604704B2 (en) |
| AT (1) | ATE315123T1 (en) |
| AU (1) | AU7045998A (en) |
| CA (1) | CA2287355C (en) |
| DE (1) | DE69833107T2 (en) |
| FI (1) | FI971714A7 (en) |
| WO (1) | WO1998048107A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI111970B (en) | 1998-12-04 | 2003-10-15 | Metso Paper Inc | A method and apparatus for controlling the drying process of a papermaking machine or the like in a drying section |
| FI105217B (en) * | 1998-12-04 | 2000-06-30 | Valmet Corp | A method for controlling the drying process of a papermaking machine or the like in a drying section |
| FI124218B (en) | 2007-01-22 | 2014-05-15 | Valmet Technologies Inc | System in a drying section of a web forming machine for controlling the wire and further web by directional rollers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3721734A1 (en) * | 1987-07-01 | 1989-01-12 | Voith Gmbh J M | METHOD FOR DRYING A RUNNING TRAIN AND PAPER OR CARDBOARD MACHINE FOR CARRYING OUT THE METHOD |
| DE3791032C2 (en) * | 1987-11-26 | 2000-11-23 | Valmet Corp | Method and device for contactless drying of a paper or cardboard web |
| FI102623B (en) * | 1995-10-04 | 1999-01-15 | Valmet Corp | Procedure and apparatus in a paper machine |
-
1997
- 1997-04-22 FI FI971714A patent/FI971714A7/en unknown
-
1998
- 1998-04-21 DE DE69833107T patent/DE69833107T2/en not_active Expired - Lifetime
- 1998-04-21 AU AU70459/98A patent/AU7045998A/en not_active Abandoned
- 1998-04-21 EP EP98917149A patent/EP1012386B1/en not_active Expired - Lifetime
- 1998-04-21 CA CA002287355A patent/CA2287355C/en not_active Expired - Fee Related
- 1998-04-21 JP JP54509598A patent/JP3604704B2/en not_active Expired - Fee Related
- 1998-04-21 AT AT98917149T patent/ATE315123T1/en not_active IP Right Cessation
- 1998-04-21 WO PCT/FI1998/000351 patent/WO1998048107A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FI971714A0 (en) | 1997-04-22 |
| FI971714A7 (en) | 1998-10-23 |
| EP1012386A1 (en) | 2000-06-28 |
| DE69833107T2 (en) | 2006-08-17 |
| EP1012386B1 (en) | 2006-01-04 |
| JP2001504175A (en) | 2001-03-27 |
| ATE315123T1 (en) | 2006-02-15 |
| CA2287355A1 (en) | 1998-10-29 |
| JP3604704B2 (en) | 2004-12-22 |
| CA2287355C (en) | 2007-03-13 |
| DE69833107D1 (en) | 2006-03-30 |
| WO1998048107A1 (en) | 1998-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU5189798A (en) | Method for drying of paper and dry end of a paper machine | |
| CA2362186A1 (en) | Method and apparatus in the drying section of a paper machine or the like | |
| CA2314347A1 (en) | Paper machine and process | |
| AU1660600A (en) | Method and equipment for regulation of the initial part of the dryer section in a paper machine | |
| CA2152201A1 (en) | Press Section of a Paper Machine Employing Two Separate Press Nips | |
| US2919495A (en) | Process of papermaking | |
| CA2365989A1 (en) | Method and apparatus for handling a paper or board web | |
| AU4268599A (en) | Integrated paper machine | |
| AU4571700A (en) | Method and arrangement for producing calendered paper or board | |
| EP0369611A3 (en) | Apparatus for thickening pulp and paper stock | |
| AU4787299A (en) | Dryer section | |
| ES8602174A1 (en) | Method of creping a paper web | |
| CA2309656A1 (en) | Method for producing calendered paper | |
| CA2009966A1 (en) | Dryer section | |
| AU7045998A (en) | Method for optimizing evaporation drying of paper, runnability, and paper quality as well as dryer section that makes use of the method in a paper machine | |
| CA2266780A1 (en) | Method for drying a surface-treated paper web or equivalent in an after-dryer of a paper machine and after-dryer carrying out the method in a paper machine | |
| CA2284053A1 (en) | Method for control of the curl of paper in the dryer section of a paper machine and paper or board machine | |
| CA2420469A1 (en) | Method of drying a web | |
| SE0002692D0 (en) | System and method for extracting a damp web in a pulp dryer or the like from one section to the next section | |
| WO2001014637B1 (en) | Method and arrangement for surface treatment of a paper and/or board web | |
| US6436239B2 (en) | Method to reduce the adhesion of a damp fibrous material web to a rotating roll | |
| AU5223398A (en) | Method of and apparatus for drying a fiber web | |
| US20050086834A1 (en) | Device for drying a paper web | |
| AU4786599A (en) | Method and apparatus for drying pulp | |
| CA2650660A1 (en) | Pressing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK6 | Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase |