EP2152966A1 - Dispositif dote d'une surface rotative ou tournante en mode de fonctionnement - Google Patents

Dispositif dote d'une surface rotative ou tournante en mode de fonctionnement

Info

Publication number
EP2152966A1
EP2152966A1 EP08735938A EP08735938A EP2152966A1 EP 2152966 A1 EP2152966 A1 EP 2152966A1 EP 08735938 A EP08735938 A EP 08735938A EP 08735938 A EP08735938 A EP 08735938A EP 2152966 A1 EP2152966 A1 EP 2152966A1
Authority
EP
European Patent Office
Prior art keywords
elements
sensors
machine
roller
rotating
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Withdrawn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
EP08735938A
Other languages
German (de)
English (en)
Inventor
Helena Johansson
Rudolf Münch
Oliver Kaufmann
Thomas Ischdonat
Jens Haag
Susanne Moses
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2152966A1 publication Critical patent/EP2152966A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0233—Soft rolls
    • 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
    • D21G9/0036—Paper-making control systems controlling the press or drying section
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/34—Paper

Definitions

  • the present invention relates to a device with rotating in operation or rotating surface, in particular roller or shell of a machine for producing a fibrous web, in particular paper web, with a plurality of arranged in or below the surface elements of a measuring device, in particular sensors.
  • the invention has for its object to further improve the detection of the desired information.
  • the elements are arranged offset in the direction of the surface and / or transversely thereto.
  • the arrangement of the elements in the cross machine direction and in the machine direction offset from one another ensures that the desired information is recorded not only once per revolution of the surface, but depending on the number and distribution of the elements several times per revolution up to a quasi-continuous detection.
  • the roll circumference is 3.14 m.
  • a sensor diameter of 1 cm in known devices in the machine direction only all 3.14 m data are recorded, which data correspond to only 1 cm in the machine direction. That is, only 0.3% of the web is measured in the machine direction. Due to the staggered arrangement according to the invention, the data acquisition in the machine direction can be done more frequently. In immediate
  • Connecting the sensors in the circumferential direction of the surface can even achieve continuous detection.
  • Another advantage of the invention is that the data acquisition is simplified. With a large number of sensors, which are arranged next to one another in the cross-machine direction, the data must be recorded by all the sensors at the same time, since all sensors pass the measuring point, for example the roll nip, at the same time. In a staggered arrangement according to the present invention, however, it is sufficient to read the sensors substantially successively, as they also come successively through the interesting measuring point.
  • the elements are distributed substantially over the entire machine width. As a result, the entire width, for example, of a paper web can be detected.
  • the elements are arranged distributed in the circumferential direction over the entire surface. As a result, the information can be recorded in constant short intervals. Particularly preferred is the arrangement of the elements along at least one spiral line. This results in a uniform detection both in the cross machine direction and in the machine direction.
  • the elements can also be arranged along two or more mutually parallel spiral lines. As a result, the time between two measurements can be shortened not only for the total width but at any point across the width of the machine.
  • the elements of the measuring device may be formed by microwave sensors, optical sensors, ultrasonic sensors and temperature sensors, electromagnetic sensors, pressure or acceleration sensors or combinations thereof. Thus, the corresponding desired information can be obtained.
  • a plurality of elements is provided, in particular more than 100 elements.
  • a very dense collection of information can be achieved.
  • the elements join each other substantially without gaps. As a result, a quasi-continuous detection of the desired information can be achieved.
  • the elements interact with at least one radiation source arranged outside or inside the device, such as light, X-ray radiation, microwave radiation or radioactive radiation.
  • a radiation source arranged outside the device such as light, X-ray radiation, microwave radiation or radioactive radiation.
  • a transmission measurement takes place, in the case of a radiation source arranged inside the device, in particular a reflection measurement.
  • a radiation source arranged inside the device in particular a reflection measurement.
  • a reflection measurement can For this purpose can For example, be used measuring window, which are flush with the roll surface, these windows are translucent designed for the selected radiation.
  • a measuring electronics located within the roller is provided, the Messdat ⁇ n are preferably transmitted wirelessly to a arranged outside the roller receiver.
  • the invention further relates to a machine for producing or treating a fibrous web, in particular paper web with a device of the type described.
  • the elements for determining the moisture or basis weight of the fibrous web, the composition of the fibrous web, for example, the filler content of the paper or the type of filler, the elasticity or hardness of the fibrous web or its thickness are formed. This allows important information to be obtained during operation in the machine.
  • the invention relates to a method for producing or treating a fibrous web, in particular a paper web, in which a machine of the type mentioned is used.
  • At least the energy required for operating the elements and / or the measuring electronics is generated and / or stored within the roller or on a non-rotating machine component.
  • FIG. 1 shows a cross section through a pair of rollers of a machine according to the invention.
  • FIG 2 is a perspective view of a roll according to the invention.
  • the arrangement shown in Figure 1 comprises a roller 1 and a counter-roller 2, between which a first fabric 3, for example a felt or wire, and a second fabric 4, for example, a paper web are passed.
  • a first fabric 3 for example a felt or wire
  • a second fabric 4 for example, a paper web
  • this may be a press arrangement of a paper machine.
  • sensors 5 are provided for measuring certain data, such as pressure or humidity sensors.
  • the sensors 5 are, as shown for example in Figure 2, along a spiral line in or below the shell 6 of the roller 1 is arranged. This achieves an approximately continuous acquisition of the data both in the circumferential direction of the roll 1, ie in the machine direction, and in the cross-machine direction.
  • FIG. 2 shows a roller 1 with sensors 5 arranged along a spiral line.
  • an external radiation source 7 is present, which interacts with the sensors 5.
  • the sensors 5 for measuring the transmission of the radiation of the radiation source 7 through the jacket 6 of the roller 1 can be used.
  • the sensors 5 are connected, for example wirelessly, to a measuring device, not shown here.
  • the sensors are read out by the measuring device, wherein the sensors 5 can be read out one after the other or several sensors 5 at the same time. This is followed by the evaluation and optionally storage of the measured data.

Landscapes

  • Paper (AREA)

Abstract

Dispositif comprenant une surface rotative ou tournante en mode de fonctionnement, notamment un rouleau ou un revêtement d'une machine pour la production d'une bande de matière fibreuse, notamment d'une bande de papier, dotée d'un certain nombre d'éléments (5) d'un dispositif de mesure, notamment des capteurs disposés dans ou sous la surface (6). Pour améliorer la détection des caractéristiques de matériau, les éléments (5) sont disposés dans le sens de défilement de la surface (6) et/ou décalés transversalement à ce dernier. L'invention concerne également une machine équipée d'un dispositif de ce type et d'un procédé qui met en oeuvre une machine de ce type.
EP08735938A 2007-05-09 2008-04-08 Dispositif dote d'une surface rotative ou tournante en mode de fonctionnement Withdrawn EP2152966A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710000263 DE102007000263A1 (de) 2007-05-09 2007-05-09 Vorrichtung mit im Betrieb rotierender oder umlaufender Oberfläche
PCT/EP2008/054209 WO2008138690A1 (fr) 2007-05-09 2008-04-08 Dispositif doté d'une surface rotative ou tournante en mode de fonctionnement

Publications (1)

Publication Number Publication Date
EP2152966A1 true EP2152966A1 (fr) 2010-02-17

Family

ID=39598187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08735938A Withdrawn EP2152966A1 (fr) 2007-05-09 2008-04-08 Dispositif dote d'une surface rotative ou tournante en mode de fonctionnement

Country Status (3)

Country Link
EP (1) EP2152966A1 (fr)
DE (1) DE102007000263A1 (fr)
WO (1) WO2008138690A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011013967A (ja) * 2009-07-02 2011-01-20 Toshiba Corp こわさ検出装置、こわさ検出方法、及びこわさ検出装置を備える紙葉類処理装置
DE102011088567A1 (de) 2011-12-14 2013-06-20 Hamm Ag Vorrichtung zur Erfassung der Bewegung einer Verdichterwalze eines Bodenverdichters
DE102018007847A1 (de) * 2018-10-04 2020-04-09 Carl Krafft & Söhne GmbH & Co. KG Verfahren zum Erfassen von Nutzungsdaten von Walzen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048353A (en) * 1990-03-01 1991-09-17 Beloit Corporation Method and apparatus for roll profile measurement
US6441904B1 (en) * 1999-03-04 2002-08-27 Metso Paper Automation Oy Method and apparatus for measuring properties of a moving fiber web
US6361483B1 (en) * 1999-10-22 2002-03-26 Morrison Berkshire, Inc. System for controlling vibration of a dynamic surface
US7392715B2 (en) * 2004-10-29 2008-07-01 Stowe Woodward Ag Wireless sensors in roll covers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008138690A1 *

Also Published As

Publication number Publication date
DE102007000263A1 (de) 2008-11-13
WO2008138690A1 (fr) 2008-11-20

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