EP0349860A3 - Process for controlling the addition of retention agent during papermaking - Google Patents

Process for controlling the addition of retention agent during papermaking Download PDF

Info

Publication number
EP0349860A3
EP0349860A3 EP19890111530 EP89111530A EP0349860A3 EP 0349860 A3 EP0349860 A3 EP 0349860A3 EP 19890111530 EP19890111530 EP 19890111530 EP 89111530 A EP89111530 A EP 89111530A EP 0349860 A3 EP0349860 A3 EP 0349860A3
Authority
EP
European Patent Office
Prior art keywords
controlling
addition
agent during
retention agent
during papermaking
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.)
Withdrawn
Application number
EP19890111530
Other languages
German (de)
French (fr)
Other versions
EP0349860A2 (en
Inventor
Ralf Hemel
Jaroslav Melzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP0349860A2 publication Critical patent/EP0349860A2/en
Publication of EP0349860A3 publication Critical patent/EP0349860A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/12—Controlling the addition by measuring properties of the formed web
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/08—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/09—Uses for paper making sludge
    • Y10S162/10—Computer control of paper making variables
    • Y10S162/11—Wet end paper making variables

Landscapes

  • Paper (AREA)

Abstract

In Abhängigkeit von einem vorgegebenen Flockungsgrad und charakteristischen Werten des Papierstoffsuspension werden mit Hilfe einer mathematischen Beziehung die höchst zugebbaren Mengen der die Retention beeinflussenden variablen Stoffkomponenten bestimmt und aus den Mengenwerten Steuersignale für Dosiereinrichtungen abgeleitet. Depending on a given degree of flocculation and characteristic values of the pulp suspension are determined using a mathematical relationship the maximum allowable amounts of the retention influencing variable substance components determined and from the Control signals for metering devices are derived.

EP19890111530 1988-07-06 1989-06-24 Process for controlling the addition of retention agent during papermaking Withdrawn EP0349860A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822783 1988-07-06
DE3822783A DE3822783A1 (en) 1988-07-06 1988-07-06 METHOD FOR CONTROLLING THE ADDITION OF RETENTION AGENTS IN PAPER PRODUCTION

Publications (2)

Publication Number Publication Date
EP0349860A2 EP0349860A2 (en) 1990-01-10
EP0349860A3 true EP0349860A3 (en) 1991-05-22

Family

ID=6358029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890111530 Withdrawn EP0349860A3 (en) 1988-07-06 1989-06-24 Process for controlling the addition of retention agent during papermaking

Country Status (5)

Country Link
US (1) US4952280A (en)
EP (1) EP0349860A3 (en)
JP (1) JPH0247386A (en)
DE (1) DE3822783A1 (en)
FI (1) FI893232A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237309A1 (en) * 1992-11-05 1993-04-08 Voith Gmbh J M
SE503386C2 (en) * 1994-09-30 1996-06-03 Skogsind Tekn Foskningsinst Procedure for determining the amount of filler in paper
US6114171A (en) * 1997-10-20 2000-09-05 Westvaco Corporation Additive management system
FI103822B1 (en) 1998-06-16 1999-09-30 Valmet Corp Procedure for optimizing the flocking rate
US6363610B1 (en) 1999-10-21 2002-04-02 Allied Signal, Inc. Gas turbine rotor bimetallic ring seal and method therefor
DE10003383A1 (en) * 2000-01-26 2001-08-02 Voith Paper Patent Gmbh Method for determining a characteristic value for the binding potential of suspended paper fibers and use of the method
DE10118508A1 (en) * 2001-04-12 2002-10-17 Voith Paper Patent Gmbh Process and plant for producing a fibrous web
FI116241B (en) * 2002-05-06 2005-10-14 Metso Automation Oy Method and apparatus for determining retention of a wire portion of a paper machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002396A1 (en) * 1985-10-18 1987-04-23 Miami University Papermaking process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002396A1 (en) * 1985-10-18 1987-04-23 Miami University Papermaking process

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PAPIER, DAS. vol. 40, no. 10A, Oktober 1986, DARMSTADT DE Seiten 62 - 67; D. HORAND ET AL: "OPTIMIERUNG VON PAPIER- UND KARTONREZEPTUREN" *
TA-A- (CHIGAGO) 11-13, 1988 CONTINUOUS RETENTION MONITORING SYSTEM....KORTELAINEN H. *

Also Published As

Publication number Publication date
FI893232A0 (en) 1989-07-03
FI893232A (en) 1990-01-07
JPH0247386A (en) 1990-02-16
DE3822783A1 (en) 1990-01-11
EP0349860A2 (en) 1990-01-10
US4952280A (en) 1990-08-28

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