SE8305036L - PROCEDURE WHEN DRAWING A FIBER SUSPENSION IN A DRAWING DEVICE - Google Patents
PROCEDURE WHEN DRAWING A FIBER SUSPENSION IN A DRAWING DEVICEInfo
- Publication number
- SE8305036L SE8305036L SE8305036A SE8305036A SE8305036L SE 8305036 L SE8305036 L SE 8305036L SE 8305036 A SE8305036 A SE 8305036A SE 8305036 A SE8305036 A SE 8305036A SE 8305036 L SE8305036 L SE 8305036L
- Authority
- SE
- Sweden
- Prior art keywords
- fiber suspension
- discharge conduit
- fiber
- thickening
- fraction
- Prior art date
Links
Classifications
-
- 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
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
APPLICANT: N. A. LENNART WIKDAHL TITLE: METHOD IN THICKENING A FIBER SUSPENSION IN A THICKENING APPARATUS A method in thickening a fiber suspension in a thickening apparatus working under pressure and including an inlet for the fiber suspension and an outlet for a substantially fiberfree fraction, a supply conduit being connected to the inlet,and a discharge conduit being connected to each of the outlets. The flow in the discharge conduit for the fiber-rich fraction is regulated via a valve in the discharge conduit. Regulation is done on the basis of measuring a physical parameter of the fiber fraction with the aid of a transducer. The measured value is compared with a criterion value, and if there is a difference, the flow through the discharge conduit is changed to approach the criterion value.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8305036A SE451736B (en) | 1983-09-19 | 1983-09-19 | WHEN WATERING A WATER SUSPENSION CONTAINING CELLULOSA FIBERS |
CA000463374A CA1255237A (en) | 1983-09-19 | 1984-09-17 | Method in thickening a fiber suspension in a thickening apparatus |
FI843651A FI83241C (en) | 1983-09-19 | 1984-09-18 | Foerfarande vid urvattning av en cellulosafibersuspension |
DE19843434241 DE3434241C2 (en) | 1983-09-19 | 1984-09-18 | Method and device for cleaning and thickening a fiber suspension |
FR8414269A FR2552129B1 (en) | 1983-09-19 | 1984-09-18 | METHOD FOR THICKENING A FIBER SUSPENSION IN A THICKENING APPARATUS |
JP19650384A JPS60151394A (en) | 1983-09-19 | 1984-09-19 | Concentration of fiber suspension in concentrator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8305036A SE451736B (en) | 1983-09-19 | 1983-09-19 | WHEN WATERING A WATER SUSPENSION CONTAINING CELLULOSA FIBERS |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8305036D0 SE8305036D0 (en) | 1983-09-19 |
SE8305036L true SE8305036L (en) | 1985-03-20 |
SE451736B SE451736B (en) | 1987-10-26 |
Family
ID=20352553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8305036A SE451736B (en) | 1983-09-19 | 1983-09-19 | WHEN WATERING A WATER SUSPENSION CONTAINING CELLULOSA FIBERS |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS60151394A (en) |
CA (1) | CA1255237A (en) |
DE (1) | DE3434241C2 (en) |
FI (1) | FI83241C (en) |
FR (1) | FR2552129B1 (en) |
SE (1) | SE451736B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI82082C (en) * | 1989-03-29 | 1991-12-10 | Ahlstroem Oy | FOERFARANDE OCH ANORDNING FOER BEHANDLING AV MASSA. |
EP0422314B1 (en) * | 1989-10-10 | 1994-04-13 | WIKDAHL, Nils Anders Lennart | A method and device for the production of cellulose pulp of improved quality |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2781910A (en) * | 1951-11-30 | 1957-02-19 | Stamicarbon | Process of thickening suspensions or emulsions |
US3455821A (en) * | 1964-02-01 | 1969-07-15 | Ahlstroem Oy | Apparatus for treating slurries or gases with screen or filter surfaces under pressure |
GB1201635A (en) * | 1966-10-20 | 1970-08-12 | Defibrator Ab | Improvements in or relating to dewaterers for a fibre pulp suspension |
SE330826B (en) * | 1967-02-17 | 1970-11-30 | N Wikdahl | |
SE406944B (en) * | 1976-04-14 | 1979-03-05 | Mo Och Domsjoe Ab | PROCEDURE FOR REGULATING THE ADDITION OF SUSPENSION LIQUID BY CONTINUOUS WASHING OF SUSPENSIONS |
SE406943B (en) * | 1976-04-14 | 1979-03-05 | Mo Och Domsjoe Ab | PROCEDURE FOR CONTINUOUS WASHING OF SUSPENSIONS |
CS201120B1 (en) * | 1976-07-27 | 1980-10-31 | Svetozar Vagac | Method of and apparatus for reclaiming individual components of papermaking combined waste materials |
SU628199A1 (en) * | 1977-01-03 | 1978-10-15 | Научно-Исследовательский И Проектно-Конструкторский Институт Целлюлозного Машиностроения | System of automatic regulation of thickening process parameters |
US4253945A (en) * | 1979-08-10 | 1981-03-03 | Domtar Inc. | High consistency pulp cleaning |
JPS5847912A (en) * | 1981-09-14 | 1983-03-19 | Shigehisa Okayama | Metallic stack |
DE3205768A1 (en) * | 1982-02-18 | 1983-08-25 | J.M. Voith Gmbh, 7920 Heidenheim | PLANT FOR RECYCLING PAPER |
US4582568A (en) * | 1983-09-15 | 1986-04-15 | Beloit Corporation | Apparatus for controlling the consistency of a pulp suspension |
-
1983
- 1983-09-19 SE SE8305036A patent/SE451736B/en not_active Application Discontinuation
-
1984
- 1984-09-17 CA CA000463374A patent/CA1255237A/en not_active Expired
- 1984-09-18 FR FR8414269A patent/FR2552129B1/en not_active Expired
- 1984-09-18 DE DE19843434241 patent/DE3434241C2/en not_active Expired - Fee Related
- 1984-09-18 FI FI843651A patent/FI83241C/en not_active IP Right Cessation
- 1984-09-19 JP JP19650384A patent/JPS60151394A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS60151394A (en) | 1985-08-09 |
CA1255237A (en) | 1989-06-06 |
FR2552129B1 (en) | 1987-11-20 |
FI83241C (en) | 1996-08-20 |
FR2552129A1 (en) | 1985-03-22 |
FI83241B (en) | 1991-02-28 |
SE8305036D0 (en) | 1983-09-19 |
FI843651L (en) | 1985-03-20 |
DE3434241C2 (en) | 1994-02-10 |
SE451736B (en) | 1987-10-26 |
DE3434241A1 (en) | 1985-04-04 |
FI843651A0 (en) | 1984-09-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8305036-9 |