ATE511574T1 - METHOD FOR DEALING ERRORS DURING PRODUCTION OF A WEB - Google Patents

METHOD FOR DEALING ERRORS DURING PRODUCTION OF A WEB

Info

Publication number
ATE511574T1
ATE511574T1 AT08863004T AT08863004T ATE511574T1 AT E511574 T1 ATE511574 T1 AT E511574T1 AT 08863004 T AT08863004 T AT 08863004T AT 08863004 T AT08863004 T AT 08863004T AT E511574 T1 ATE511574 T1 AT E511574T1
Authority
AT
Austria
Prior art keywords
fault
nip
roll
roll nip
dealing
Prior art date
Application number
AT08863004T
Other languages
German (de)
Inventor
Arto Ikonen
Eero Suomi
Pekka Vantola
Original Assignee
Metso Paper Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38951515&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE511574(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Metso Paper Inc filed Critical Metso Paper Inc
Application granted granted Critical
Publication of ATE511574T1 publication Critical patent/ATE511574T1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure
    • D21G1/004—Regulating the pressure
    • D21G1/0046—Regulating the pressure depending on the measured properties of the calendered web
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure
    • D21G1/004—Regulating the pressure
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/04—Paper-break control devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/06—Indicating or regulating the thickness of the layer; Signal devices
    • 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
    • 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
    • D21G9/0045—Paper-making control systems controlling the calendering or finishing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action ; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the speed
    • F15B11/042—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the speed by means in the feed line
    • F15B11/0426—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the speed by means in the feed line by controlling the number of pumps or parallel valves switched on
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • F15B2211/40592—Assemblies of multiple valves with multiple valves in parallel flow paths

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Paper (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

The invention relates to a method for dealing with faults occurring during the calendering of a material web, said method comprising at least the following steps of: -identifying the location of a fault (H) on the surface of a roll (5) or in a material web and estimating or calculating an arrival time of the fault (H) at a roll nip (N) and a dwell time for the fault in the roll nip, -transmitting from a control system (4) to at least one digital valve unit (100), used for controlling a nip pressure of the roll nip (N), a feed-forward adjustment instruction (F) for dealing with a fault in the roll nip (N) of a calender, -reducing as per adjustment instruction (F), through the intermediary of at least one digital valve (1), a nip pressure of the roll nip (N) at the latest when the fault (H) arrives at the roll nip (N) and increasing the nip pressure as the fault exits the roll nip.
AT08863004T 2007-12-14 2008-12-12 METHOD FOR DEALING ERRORS DURING PRODUCTION OF A WEB ATE511574T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20070984A FI120317B (en) 2007-12-14 2007-12-14 Method of treating deviations during manufacture of a material web and plant for carrying out the procedure in a calender
PCT/FI2008/050734 WO2009077650A1 (en) 2007-12-14 2008-12-12 Method for dealing with faults occurring during the manufacture of a material web

Publications (1)

Publication Number Publication Date
ATE511574T1 true ATE511574T1 (en) 2011-06-15

Family

ID=38951515

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08863004T ATE511574T1 (en) 2007-12-14 2008-12-12 METHOD FOR DEALING ERRORS DURING PRODUCTION OF A WEB

Country Status (5)

Country Link
EP (1) EP2231924B1 (en)
CN (1) CN101903594B (en)
AT (1) ATE511574T1 (en)
FI (1) FI120317B (en)
WO (1) WO2009077650A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009026606A1 (en) * 2009-05-29 2010-12-02 Metso Paper, Inc. Digital hydraulic controller
DE102009055308A1 (en) * 2009-12-23 2011-06-30 Metso Paper, Inc. Arrangement for controlling the position of a roll or the nip pressure of a nip in a fibrous web machine
DE102010000833A1 (en) * 2010-01-12 2011-07-14 Metso Paper, Inc. Paper machine for manufacturing fibrous material web, has fluid pressure-driven actuators provided for controlling nip pressure in gap between air pressure devices, and switching valves controlling movement of actuators
FI121896B (en) * 2010-02-05 2011-05-31 Metso Paper Inc BOMBABLE ROLL AND SYSTEM
WO2012041536A1 (en) 2010-09-27 2012-04-05 Metso Paper, Inc. Fluid pressure control system
DE102010042780A1 (en) 2010-10-21 2012-04-26 Metso Paper, Inc. Fluid system for e.g. paper or paperboard machine for producing fibrous material web, has calculation device computing calibration value of valves, on basis of detected piston travel or path between acquisition locations and travel time
DE102010043168A1 (en) 2010-10-29 2012-05-03 Metso Paper, Inc. Method for filling pressure reservoir with e.g. oil, in fluid system of fibrous material web manufacturing machine e.g. paper manufacturing machine, involves controlling moving velocity of piston by selection of pressure chambers
EP2543890B1 (en) * 2011-07-04 2018-09-05 Valmet Technologies, Inc. Safety component
DE102012218146A1 (en) 2012-10-04 2014-04-10 Metso Paper, Inc. Calibration method for system of fluid used in paper machine, involves calculating discharge coefficient value of supply valve based on determined differences in pressure and discharge coefficient of drain valve
DE102013200857A1 (en) 2013-01-21 2014-07-24 Valmet Technologies, Inc. Device for determining position of actuator i.e. hydraulic piston, in actuator cylinder of hydraulic system in fibrous material web manufacturing machine i.e. paper machine, has detection device detecting impulse response of actuator
EP3593216B1 (en) * 2017-03-06 2025-06-04 Honeywell Limited Method and apparatus for designing model-based control having spatial robustness for multiple-array cross- direction (cd) web manufacturing or processing systems or other systems
CN108179585B (en) * 2018-03-05 2024-05-28 博路威机械江苏有限公司 Y-shaped double-nip deflection controllable roller
CN113174773B (en) * 2021-05-06 2022-07-15 山东明源智能装备股份有限公司 Complex multi-information processing method for papermaking equipment
CN113515046B (en) * 2021-07-19 2023-05-16 西安理工大学 Winding tension control method of web coating machine based on feedforward control
CN114215804B (en) * 2022-02-22 2022-04-29 中国空气动力研究与发展中心高速空气动力研究所 Electro-hydraulic servo system for driving curved knife supporting mechanism
CN116091728B (en) * 2022-12-01 2025-09-23 西北工业大学 A method for locating and eliminating forging defects

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI115144B (en) * 1999-10-13 2005-03-15 Metso Paper Inc Procedure for calendering
FI113794B (en) * 2002-11-14 2004-06-15 Metso Paper Inc Method and arrangement for controlling the position and / or force of an elongated roller assembly
FI114647B (en) * 2003-07-02 2004-11-30 Metso Paper Inc An arrangement for controlling the web with a press section of a paper or board machine

Also Published As

Publication number Publication date
CN101903594A (en) 2010-12-01
WO2009077650A1 (en) 2009-06-25
FI20070984L (en) 2009-06-15
FI20070984A0 (en) 2007-12-14
CN101903594B (en) 2012-07-18
FI120317B (en) 2009-09-15
EP2231924A1 (en) 2010-09-29
EP2231924B1 (en) 2011-06-01

Similar Documents

Publication Publication Date Title
FI20070984A0 (en) Process for handling disturbances during the production of a material web
WO2010094808A3 (en) Method for at least partially remachining or replacing a reinforcement element of a fibre composite structure and associated connecting device
SG146597A1 (en) Lithographic apparatus and device manufacturing method
WO2011147022A3 (en) Apparatus and method for modeling and control of cross-direction fiber orientation processes
MX2020013404A (en) Method for producing a laminated pane having a polarisation-selective coating.
DE502005001900D1 (en) METHOD FOR ADJUSTING A MATERIAL ROLL
IN2012DN02119A (en)
PT2307785E (en) Method for controlling a compressed air unit and compressed air unit for applying such a method
WO2007047156A3 (en) Apparatus and method for stiction compensation in a process control system
ATE440028T1 (en) METHOD AND DEVICE FOR CONTROLLING THE THRUST OF A MULTI-ENGINE AIRCRAFT
SG10201805550TA (en) System for monitoring and controlling equipment life due to corrosion degradation
Bessa et al. Passivation blocks for fault tolerant control of nonlinear systems
PL2132353T3 (en) Method and equipment for the continuous deposition of a coating on a strip type substrate
SE0850055L (en) Device, system and method for measuring operating conditions of an element rotating in a web forming machine or a finishing machine
DE50308253D1 (en) Method for regulating a web tension
ATE484131T1 (en) METHOD AND DEVICE FOR OPERATING A NETWORK AND COMMUNICATIONS SYSTEM WITH SUCH A DEVICE
MX2025014292A (en) Multilayer breathable films and laminates including the same
ATE485461T1 (en) CONTROL DEVICE AND METHOD FOR CONTROLLING A PRESSURE CONSUMER USING A PRESSURE DIFFERENTIAL SENSOR
ATE527198T1 (en) DEVICE AND METHOD FOR BENDING A WEB
WO2009000499A3 (en) Printing group for a machine used in the tobacco processing industry
CN102666101A (en) Method for controlling a control variable for a processing machine
ATE538009T1 (en) METHOD AND DEVICE FOR CONTROLLING CONTROL PRESSURE
ATE523338T1 (en) METHOD FOR USING A PRESSURE UNIT AND A METHOD FOR ADJUSTING A PRESSURE SETTING
DE602006014820D1 (en) POSITION OF TOBACCO PRODUCTS
ATE526166T1 (en) METHOD FOR THE FULLY AUTOMATIC CONVERSION OF A ROLL CHANGER DURING A PRODUCTION CHANGE ON A ROTARY PRINTING PRESS

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification

Ref document number: 2231924

Country of ref document: EP