CA2017010A1 - Press section of a paper or board machine - Google Patents
Press section of a paper or board machineInfo
- Publication number
- CA2017010A1 CA2017010A1 CA2017010A CA2017010A CA2017010A1 CA 2017010 A1 CA2017010 A1 CA 2017010A1 CA 2017010 A CA2017010 A CA 2017010A CA 2017010 A CA2017010 A CA 2017010A CA 2017010 A1 CA2017010 A1 CA 2017010A1
- Authority
- CA
- Canada
- Prior art keywords
- roll
- press
- nip
- web
- forms
- 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.)
- Granted
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
Landscapes
- Paper (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
The invention concerns a press section of a paper or paperboard making machine, comprising a number of rolls (1, 11, 22, 32, 44, 70) which forms press nips (N1, N2, N3, N4) that dewater the web (W) with each other, the web being arranged to run through these nips. Of the rolls at least one roll (1;70) is a smooth-faced so-called center 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 from the web (W). The center roll (1; 70) in accordance with the invention is a variable-crown roll, which comprises a metallic roll mantle (2; 71) arranged to revolve around a stationary roll axle (3; 72). The roll includes at least one set of crown-variation members (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 center roll (1; 70) and the roll (11, 32; 44) that forms a press nip N2, N3; N4) with the center roll so as to regulate the linear load profile in the nip (N2, N3; N4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI892625 | 1989-05-30 | ||
| FI892625A FI86753C (en) | 1989-05-30 | 1989-05-30 | PRESS SPEAKER FOR PAPER-ELLER CARTON MASK |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2017010A1 true CA2017010A1 (en) | 1990-11-30 |
| CA2017010C CA2017010C (en) | 1995-07-18 |
Family
ID=8528534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002017010A Expired - Lifetime CA2017010C (en) | 1989-05-30 | 1990-05-17 | Press section of a 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 |
| CN110612370B (en) * | 2017-05-10 | 2022-01-28 | 福伊特专利有限公司 | Production 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 EP EP90850218A patent/EP0401190B1/en not_active Expired - Lifetime
- 1990-05-29 DE DE69021277T patent/DE69021277T2/en not_active Expired - Fee Related
- 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 |
|---|---|
| FI86753B (en) | 1992-06-30 |
| EP0401190A2 (en) | 1990-12-05 |
| DE69021277D1 (en) | 1995-09-07 |
| EP0401190B1 (en) | 1995-08-02 |
| DE69021277T2 (en) | 1996-01-11 |
| CA2017010C (en) | 1995-07-18 |
| CN1048813A (en) | 1991-01-30 |
| FI892625A7 (en) | 1990-12-01 |
| FI892625A0 (en) | 1989-05-30 |
| EP0401190A3 (en) | 1992-01-02 |
| ATE125894T1 (en) | 1995-08-15 |
| FI86753C (en) | 1992-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKEC | Expiry (correction) |
Effective date: 20121202 |