SE9201735L - Methods to control the screening process when screening cellulose-containing pulp suspensions - Google Patents
Methods to control the screening process when screening cellulose-containing pulp suspensionsInfo
- Publication number
- SE9201735L SE9201735L SE9201735A SE9201735A SE9201735L SE 9201735 L SE9201735 L SE 9201735L SE 9201735 A SE9201735 A SE 9201735A SE 9201735 A SE9201735 A SE 9201735A SE 9201735 L SE9201735 L SE 9201735L
- Authority
- SE
- Sweden
- Prior art keywords
- screening
- cellulose
- methods
- control
- containing pulp
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
A method of controlling the screening process at the screening of cellulose-containing pulp suspensions in a screening device (1) where ingoing pulp suspension (2) is divided by means of a screening member into an accept fraction (3) and a reject fraction (4). The material concentration in the reject fraction (4) is measured continuously by a meter (5) and transferred to a signal (6, 7), which is utilized for controlling the ingoing pulp concentration and/or the energy supply to the screening process.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9201735A SE470315B (en) | 1992-06-05 | 1992-06-05 | Methods to control the screening process when screening cellulose-containing pulp suspensions |
AU40309/93A AU4030993A (en) | 1992-06-05 | 1993-04-30 | Screening of pulp |
PCT/SE1993/000384 WO1993025752A1 (en) | 1992-06-05 | 1993-04-30 | Screening of pulp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9201735A SE470315B (en) | 1992-06-05 | 1992-06-05 | Methods to control the screening process when screening cellulose-containing pulp suspensions |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9201735D0 SE9201735D0 (en) | 1992-06-05 |
SE9201735L true SE9201735L (en) | 1993-12-06 |
SE470315B SE470315B (en) | 1994-01-17 |
Family
ID=20386419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9201735A SE470315B (en) | 1992-06-05 | 1992-06-05 | Methods to control the screening process when screening cellulose-containing pulp suspensions |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU4030993A (en) |
SE (1) | SE470315B (en) |
WO (1) | WO1993025752A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0958429A1 (en) * | 1996-02-29 | 1999-11-24 | Alfa Laval AB | Process and apparatus for controlling the purification and yield of fibers from a fiber suspension |
US6080274A (en) * | 1997-05-06 | 2000-06-27 | Valmet Corporation | Method for controlling a multi-phase screening apparatus |
FI107741B (en) | 2000-02-11 | 2001-09-28 | Metso Paper Inc | A method for controlling the quality of a pulp |
FI112806B (en) * | 2001-03-09 | 2004-01-15 | Metso Paper Inc | A method for controlling the quality of a pulp |
DE10125975A1 (en) * | 2001-05-29 | 2002-12-05 | Voith Paper Patent Gmbh | Process for separating fractions from a fiber suspension |
DE10160603A1 (en) * | 2001-12-10 | 2003-06-26 | Voith Paper Patent Gmbh | Method for regulating sorting systems and sorting system suitable for carrying out this method |
FI20090455A (en) * | 2009-11-30 | 2011-05-31 | Andritz Oy | Procedure for the regulation of a silage |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3410409A (en) * | 1966-01-18 | 1968-11-12 | Bird Machine Co | Screening apparatus control |
US4042503A (en) * | 1973-12-10 | 1977-08-16 | Beloit Corporation | Classifier and process for recycled fiber separation |
SE8106985L (en) * | 1981-11-24 | 1983-05-25 | Nils Anders Lennart Wikdahl | KEEP PREVENTING THE COMPOSITION OF A SILORGAN IN THE SILVERING OF A FIBER SUSPENSION |
SE8200073L (en) * | 1982-01-08 | 1982-12-27 | Nils Anders Lennart Wikdahl | SET AND DEVICE FOR SILENCE OF A FIBER SUSPENSION IN A PRESSURE Sieve |
-
1992
- 1992-06-05 SE SE9201735A patent/SE470315B/en not_active Application Discontinuation
-
1993
- 1993-04-30 WO PCT/SE1993/000384 patent/WO1993025752A1/en active Application Filing
- 1993-04-30 AU AU40309/93A patent/AU4030993A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
SE9201735D0 (en) | 1992-06-05 |
AU4030993A (en) | 1994-01-04 |
WO1993025752A1 (en) | 1993-12-23 |
SE470315B (en) | 1994-01-17 |
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