DE69021277D1 - Press section on paper or board machine. - Google Patents
Press section on paper or board machine.Info
- Publication number
- DE69021277D1 DE69021277D1 DE69021277T DE69021277T DE69021277D1 DE 69021277 D1 DE69021277 D1 DE 69021277D1 DE 69021277 T DE69021277 T DE 69021277T DE 69021277 T DE69021277 T DE 69021277T DE 69021277 D1 DE69021277 D1 DE 69021277D1
- Authority
- DE
- Germany
- Prior art keywords
- roll
- press
- nip
- centre
- web
- 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
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/04—Arrangements thereof
Abstract
The invention concerns a press section of a paper or board machine, comprising a number of rolls (1,11,22,32,44,70) which form press nips (N1,N2,N3,N4) that dewater the web (in) with each other, the web being arranged to run through said nips. Of the rolls at least one roll (1;70) is a smooth-faced so-called centre roll, which forms a press nip (N2,N3;N4) with at least one other press roll (11,32;44), over which a press felt (10,30;40), which has been formed as an endless loop, is passed to absorb water out of the web (in) into said press felt (10,30;40). The centre roll (1;70) in accordance with the invention is a variable-crown roll, which comprises a metallic roll mantle (2;71) arranged revolving on a stationary roll axle (3;72). The roll includes at least one set of crown-variation means (4,5;73), which are arranged to load the roll mantle (2;71) in the direction of the nip plane (K2,K3;K4) of the centre roll (1;70) and the roll (11,32;44) that forms a press nip (N2,N3;N4) with said centre roll so as to regulate the profile of linear load in said nip (N2,N3;N4).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI892625A FI86753C (en) | 1989-05-30 | 1989-05-30 | Press section for a paper or cardboard machine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69021277D1 true DE69021277D1 (en) | 1995-09-07 |
DE69021277T2 DE69021277T2 (en) | 1996-01-11 |
Family
ID=8528534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69021277T Expired - Fee Related DE69021277T2 (en) | 1989-05-30 | 1990-05-29 | Press section on paper or board machine. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0401190B1 (en) |
CN (1) | CN1048813A (en) |
AT (1) | ATE125894T1 (en) |
CA (1) | CA2017010C (en) |
DE (1) | DE69021277T2 (en) |
FI (1) | FI86753C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992008003A1 (en) * | 1990-10-31 | 1992-05-14 | Beloit Corporation | Paper web heating on a press roll |
DE4140879A1 (en) * | 1991-12-11 | 1993-06-17 | Voith Gmbh J M | PRESS RELEASE |
FI88812C (en) * | 1992-03-05 | 1993-07-12 | Valmet Paper Machinery Inc | Device for controlling the web's tip drawing tape in a paper machine |
DE19654325A1 (en) * | 1996-12-24 | 1998-06-25 | Voith Sulzer Papiermasch Gmbh | Press section of a paper-making machine |
WO2018206216A1 (en) * | 2017-05-10 | 2018-11-15 | Voith Patent Gmbh | Device and method for producing a fibrous web |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1193792B (en) * | 1961-06-30 | 1965-05-26 | Textilmaschinen Eduard Kuester | Roller for the pressure treatment of webs |
US3477907A (en) * | 1966-03-09 | 1969-11-11 | Beloit Corp | Press arrangement for papermaking machine |
CH607635A5 (en) * | 1976-06-14 | 1978-09-29 | Escher Wyss Ag | |
DE3117787A1 (en) * | 1981-05-06 | 1982-12-09 | J.M. Voith Gmbh, 7920 Heidenheim | Press section of a paper machine having a granite roll arranged therein |
DE3808293C2 (en) * | 1988-03-12 | 1994-08-18 | Voith Gmbh J M | Long nip press roll |
US4889048A (en) * | 1988-04-13 | 1989-12-26 | Miller Ray R | High heat flux roll and press utilizing same |
DE3815278A1 (en) * | 1988-05-05 | 1989-11-16 | Voith Gmbh J M | PRESS RELEASE OF A MACHINE FOR THE PRODUCTION OF A FIBROUS MATERIAL SHEET, IN PARTICULAR PAPER SHEET |
-
1989
- 1989-05-30 FI FI892625A patent/FI86753C/en not_active IP Right Cessation
-
1990
- 1990-05-17 CA CA002017010A patent/CA2017010C/en not_active Expired - Lifetime
- 1990-05-29 DE DE69021277T patent/DE69021277T2/en not_active Expired - Fee Related
- 1990-05-29 EP EP90850218A patent/EP0401190B1/en not_active Expired - Lifetime
- 1990-05-29 AT AT90850218T patent/ATE125894T1/en not_active IP Right Cessation
- 1990-05-30 CN CN90103960.8A patent/CN1048813A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0401190B1 (en) | 1995-08-02 |
ATE125894T1 (en) | 1995-08-15 |
FI892625A (en) | 1990-12-01 |
EP0401190A2 (en) | 1990-12-05 |
EP0401190A3 (en) | 1992-01-02 |
FI892625A0 (en) | 1989-05-30 |
CA2017010C (en) | 1995-07-18 |
CA2017010A1 (en) | 1990-11-30 |
DE69021277T2 (en) | 1996-01-11 |
FI86753B (en) | 1992-06-30 |
FI86753C (en) | 1992-10-12 |
CN1048813A (en) | 1991-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |