CA2224878C - Procede continu de regulation generale de la caisse de tete et/ou du formeur d'une machine a papier ou a carton - Google Patents

Procede continu de regulation generale de la caisse de tete et/ou du formeur d'une machine a papier ou a carton Download PDF

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Publication number
CA2224878C
CA2224878C CA002224878A CA2224878A CA2224878C CA 2224878 C CA2224878 C CA 2224878C CA 002224878 A CA002224878 A CA 002224878A CA 2224878 A CA2224878 A CA 2224878A CA 2224878 C CA2224878 C CA 2224878C
Authority
CA
Canada
Prior art keywords
headbox
regulation
former
flow
paper
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.)
Expired - Fee Related
Application number
CA002224878A
Other languages
English (en)
Other versions
CA2224878A1 (fr
Inventor
Jyrki Huovila
Jari Hamalainen
Petri Nyberg
Pekka Pakarinen
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.)
Valmet Technologies Oy
Original Assignee
Metso Paper Oy
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
Priority claimed from US08/634,465 external-priority patent/US5812404A/en
Priority claimed from US08/818,837 external-priority patent/US5825653A/en
Application filed by Metso Paper Oy filed Critical Metso Paper Oy
Priority claimed from PCT/FI1997/000226 external-priority patent/WO1997039182A1/fr
Publication of CA2224878A1 publication Critical patent/CA2224878A1/fr
Application granted granted Critical
Publication of CA2224878C publication Critical patent/CA2224878C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W74/00—Encapsulations, e.g. protective coatings
    • H10W74/01—Manufacture or treatment
    • H10W74/019—Manufacture or treatment using temporary auxiliary substrates
    • 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
    • D21F1/06—Regulating pulp flow
    • 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
    • D21G9/0027—Paper-making control systems controlling the forming section
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
    • H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
    • H10P72/74—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using temporarily an auxiliary support
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/01—Manufacture or treatment
    • H10W72/0198—Manufacture or treatment batch processes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
    • H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
    • H10P72/74—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using temporarily an auxiliary support
    • H10P72/7438—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using temporarily an auxiliary support with parts of the auxiliary support remaining in the finished device

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  • Paper (AREA)

Abstract

L'invention porte sur un procédé continu de régulation générale de caisse de tête/formeur d'une machine à papier ou à carton ou analogue. Ledit procédé consiste à créer un modèle physique d'écoulement des fluides dans la caisse de tête/et le formeur relatif à l'égouttage et à l'état du courant de suspension de pâte, servant à réguler la caisse de tête (100) et le formeur (100'). Le modèle est résolu par intégration des données relatives à la géométrie de la caisse de tête (100) et du formeur (100') et des conditions initiales et limites. La différence entre l'état simulé provenant de la résolution dudit modèle et l'état pris comme cible donne une fonction de coût, l'état cible étant déterminé par les exigences de qualité du papier et éventuellement par des considérations de coût d'exploitation, et de possibilités de la machine. La fonction de coût ayant été optimisée, on recherche les valeurs optimes de réglage et de consigne (C) des instruments et des dispositifs de manoeuvre de la caisse de tête (100) et du formeur (100') correspondant à la fonction de coût donnée. Lorsque l'optimisation a eu lieu dans une étape précédente, les éléments régulateurs de la caisse de tête (100) et du formeur (100') reçoivent de nouvelles valeurs de réglage et de consigne (c).
CA002224878A 1996-04-18 1997-04-14 Procede continu de regulation generale de la caisse de tete et/ou du formeur d'une machine a papier ou a carton Expired - Fee Related CA2224878C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/634,465 US5812404A (en) 1996-04-18 1996-04-18 Method for overall regulation of the headbox of a paper machine or equivalent
US08/634,465 1996-04-18
US08/818,837 1997-03-14
US08/818,837 US5825653A (en) 1997-03-14 1997-03-14 Method for overall regulation of a former of a paper machine or equivalent
PCT/FI1997/000226 WO1997039182A1 (fr) 1996-04-18 1997-04-14 Procede continu de regulation generale de la caisse de tete et/ou du formeur d'une machine a papier ou a carton

Publications (2)

Publication Number Publication Date
CA2224878A1 CA2224878A1 (fr) 1997-10-23
CA2224878C true CA2224878C (fr) 2006-08-01

Family

ID=36764300

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002224878A Expired - Fee Related CA2224878C (fr) 1996-04-18 1997-04-14 Procede continu de regulation generale de la caisse de tete et/ou du formeur d'une machine a papier ou a carton

Country Status (1)

Country Link
CA (1) CA2224878C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114182562B (zh) * 2021-12-15 2023-07-14 浙江华章科技有限公司 一种网部脱水元件智能优化方法及系统

Also Published As

Publication number Publication date
CA2224878A1 (fr) 1997-10-23

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