SE7813203L - LONG ZONE PRESSURE FOR A PAPER MACHINE - Google Patents
LONG ZONE PRESSURE FOR A PAPER MACHINEInfo
- Publication number
- SE7813203L SE7813203L SE7813203A SE7813203A SE7813203L SE 7813203 L SE7813203 L SE 7813203L SE 7813203 A SE7813203 A SE 7813203A SE 7813203 A SE7813203 A SE 7813203A SE 7813203 L SE7813203 L SE 7813203L
- Authority
- SE
- Sweden
- Prior art keywords
- press
- common
- nips
- roll
- pressure
- Prior art date
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
- D21F3/0209—Wet presses with extended press nip
Landscapes
- Paper (AREA)
Abstract
An extended nip press for a paper machine for removing water from a fiber web comprises several press rolls (2, 2', 3, 3') forming at least four separate press nips (4, 4', 5, 5') with a common press roll (1). A first press zone (PV) is limited by two press nips (4, 5) and a second press zone (PV'), by further two press nips (4', 5') along the surface of said common press roll (1). Each press zone comprises a pressure medium chamber (9, 9') limited by the secondary press rolls (2, 2', 3, 3') and a pressure medium impervious band (11, 11') passing through the press nips over the press zone in order to press said band against said common press roll. The fiber web (15) is carried by a porous felt (12, 12') through all press nips and is in both press zones subjected to a pressure action against said common press roll. The pressure chambers are positioned on opposite sides of said common press roll so that the displacing pressure forces caused by the pressure zones upon said common press roll at least partially nullify each other. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI782549A FI782549A (en) | 1978-08-21 | 1978-08-21 | LAONGZONSPRESS FOER PAPER MACHINE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7813203L true SE7813203L (en) | 1980-02-22 |
Family
ID=8511943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7813203A SE7813203L (en) | 1978-08-21 | 1978-12-21 | LONG ZONE PRESSURE FOR A PAPER MACHINE |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5530483A (en) |
| BR (1) | BR7900058A (en) |
| CA (1) | CA1099551A (en) |
| DE (1) | DE2854690A1 (en) |
| FI (1) | FI782549A (en) |
| GB (1) | GB2028886A (en) |
| IT (1) | IT1109919B (en) |
| SE (1) | SE7813203L (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE429723B (en) * | 1982-01-04 | 1983-09-26 | Johnson Axel Eng Ab | PROCEDURE AND DEVICE FOR DRAINING A SUSPENSION, SPECIAL SLAM |
| FI70950C (en) * | 1983-03-25 | 1986-10-27 | Valmet Oy | PRESSPARTI MED SLUTET DRAG I PAPPERSMASKIN |
-
1978
- 1978-08-21 FI FI782549A patent/FI782549A/en unknown
- 1978-12-18 DE DE19782854690 patent/DE2854690A1/en not_active Withdrawn
- 1978-12-21 SE SE7813203A patent/SE7813203L/en not_active Application Discontinuation
- 1978-12-21 GB GB7849555A patent/GB2028886A/en not_active Withdrawn
- 1978-12-22 CA CA318,569A patent/CA1099551A/en not_active Expired
-
1979
- 1979-01-05 IT IT19083/79A patent/IT1109919B/en active
- 1979-01-05 JP JP54079A patent/JPS5530483A/en active Pending
- 1979-01-05 BR BR7900058A patent/BR7900058A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5530483A (en) | 1980-03-04 |
| GB2028886A (en) | 1980-03-12 |
| IT1109919B (en) | 1985-12-23 |
| CA1099551A (en) | 1981-04-21 |
| FI782549A (en) | 1980-02-22 |
| IT7919083A0 (en) | 1979-01-05 |
| DE2854690A1 (en) | 1980-03-06 |
| BR7900058A (en) | 1980-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 7813203-2 |