EP1026318A2 - Calandre - Google Patents

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Publication number
EP1026318A2
EP1026318A2 EP00101412A EP00101412A EP1026318A2 EP 1026318 A2 EP1026318 A2 EP 1026318A2 EP 00101412 A EP00101412 A EP 00101412A EP 00101412 A EP00101412 A EP 00101412A EP 1026318 A2 EP1026318 A2 EP 1026318A2
Authority
EP
European Patent Office
Prior art keywords
air
limited space
blower
calender
computer
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.)
Granted
Application number
EP00101412A
Other languages
German (de)
English (en)
Other versions
EP1026318B1 (fr
EP1026318A3 (fr
Inventor
Franz Kayser
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 Paper Patent GmbH
Voith Sulzer Papiertechnik 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 Paper Patent GmbH, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1026318A2 publication Critical patent/EP1026318A2/fr
Publication of EP1026318A3 publication Critical patent/EP1026318A3/fr
Application granted granted Critical
Publication of EP1026318B1 publication Critical patent/EP1026318B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0073—Accessories for calenders
    • D21G1/0093—Web conditioning devices

Definitions

  • the invention relates to a calender for webs from moisture-containing material, such as paper, with a stand with two side parts and one Roll stack, being between the side panels a limited at least by the roll stack and the web Room is located.
  • the space between the side parts of the stand is common on a vertical or inclined one Through the roller stack and below through the Limited floor of the workshop. Coming further limits through the web, for example at the top and on the opposite side of the roll stack Side, there is a largely closed Space with the surrounding atmosphere in only a small amount Measure is in exchange. This is especially true for an in-line calender that is close to the drying cylinders the paper machine is arranged, but also for an off-line calender with a closely adjacent unwinding device.
  • the limited space is only imperfect with the surrounding atmosphere communicates, the rises in him Air humidity due to the moisture of the paper web or a steam humidifier insert.
  • the air in the limited Space is saturated, so that fog drops form.
  • the moisture condenses on the cooler components, such as the stand, which results in a risk of corrosion.
  • Last but not least is the high one Moisture also uncomfortable for the operating personnel.
  • the invention has for its object a calender of the type described at the beginning with which the moisture problems while keeping the limits of the room are solved.
  • this object is achieved by a blower, that blows dry air into the limited space.
  • the blower air can therefore with higher temperature and therefore the Improve the drying effect of the air in a limited space.
  • a computer is provided is the, taking into account the sensor measured values to avoid the saturation of the air in the limited Space required fan air data calculated, and that means controlled by the computer for adjustment the fan air data are provided.
  • a blower air quantity adjusting device can advantageously be provided to the blower and / or the heater a blower air temperature adjusting device be assigned.
  • the computer has a program that the air in the limited space near the saturation state holds. This ensures that no overdrying of the web occurs, the yes the space is limited and in the area of the roll stack is transported through the room.
  • the illustrated calender 1 has one on the Floor 2 standing stand 3 with two side parts 4, of which only the one side part can be seen. At one end of the side parts 4 is a roll stack 5 arranged, a paper web 6 from a Drying roller arrangement 7 of a paper machine over a vertical section 8 on the roll stack 5 opposite end face of the side parts 4 and one upper section 9 is supplied. Lane 6 occurs out of the roll stack and is on a winder 10 wound up.
  • a blower 13 is provided which intakes dry air blows the limited space 11.
  • the fan air data such as Amount, temperature, degree of drying, etc. be from one Computer 14 given the under the influence of Measured values of a humidity sensor 15 and a temperature sensor 16 and possibly even more Sensors, for example, the relative humidity and the temperature of the atmosphere in the confined space 11 determine.
  • the computer 14 is with two humidity sensors 15 and 15 'and two Temperature sensors 16, 16 'connected to each different locations of the limited space 11 arranged are, for example on the side parts 4.
  • About Inputs 17 and 18 are the computer 14 setpoints of the Humidity and temperature in a limited space 11 given.
  • the blower 13 has a blower air amount adjusting device 19 which is the shape of an adjustable Motors has controlled by the computer 14 becomes.
  • a heater 20 is connected upstream of the fan 13, the blower air with a from the computer 14 provided temperature, what by means of a blower air temperature adjusting device 21 in the form an adjustable heating current controller happens.
  • the overall arrangement can be operated such that the fan air in such an amount, with such an amount Temperature and with such a degree of dryness that the atmosphere is supplied in limited space 11 is outside the saturation state, i.e. droplet formation and completely or largely avoided wetness becomes.
  • the computer 14 can run a program that the atmosphere in the limited space 11th outside the saturation state, but still close holds this state, so that the web 6 passing therethrough is not exposed to undesirable drying.
  • the aim is a relative humidity, i.e. the ratio the mass of water vapor in the air to the mass of water vapor when saturated, from 75 to 95%, preferably 85 to 90%.
  • blower 13 instead of one blower 13, several blowers can also be used be provided, the dry air at different Introduce the limited space 11 into this.
  • Air is considered "dry" in the sense of the invention, if it has a moisture content that is less, is preferably considerably less than it Moisture content of the atmosphere in a limited space 11. It is important that the fan air matches the Air in the limited space 11 mixes and this mixture has a humidity and a temperature that is tight is above the saturation temperature. Is preferred an overheating of 5 to 10 ° C.
  • the blower can also be used on calenders where the side parts carry a stack of rollers, the stacking level runs at an angle to the horizontal.

Landscapes

  • Paper (AREA)
EP00101412A 1999-02-06 2000-01-25 Calandre Expired - Lifetime EP1026318B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904891A DE19904891C1 (de) 1999-02-06 1999-02-06 Kalander
DE19904891 1999-02-06

Publications (3)

Publication Number Publication Date
EP1026318A2 true EP1026318A2 (fr) 2000-08-09
EP1026318A3 EP1026318A3 (fr) 2001-08-16
EP1026318B1 EP1026318B1 (fr) 2004-03-24

Family

ID=7896660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101412A Expired - Lifetime EP1026318B1 (fr) 1999-02-06 2000-01-25 Calandre

Country Status (3)

Country Link
US (1) US6694640B1 (fr)
EP (1) EP1026318B1 (fr)
DE (2) DE19904891C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001075224A1 (fr) * 2000-04-04 2001-10-11 Metso Paper, Inc. Procede et agencement pour controler l'humidite dans une calandreuse a plusieurs cylindres
WO2005049918A1 (fr) * 2003-11-20 2005-06-02 Metso Paper, Inc. Procede permettant de traiter une nappe fibreuse dans la section de sechage d'une machine a papier/carton et dans un dispositif de finissage place apres la section de sechage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004062563A1 (de) * 2004-12-24 2006-07-06 Voith Paper Patent Gmbh Vorrichtung und Verfahren zum Behandeln einer Materialbahn

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4836894A (en) * 1982-09-30 1989-06-06 Beloit Corporation Profiling air/steam system for paper-making machines
DE4412625C2 (de) * 1994-04-13 1999-05-06 Kleinewefers Gmbh Vorrichtung und Verfahren zum Behandeln einer Materialbahn
FI107746B (fi) * 1996-02-23 2001-09-28 Metso Paper Inc Menetelmä paperiradan tai vastaavan kalanteroinnissa
US5694848A (en) * 1996-03-13 1997-12-09 Heidelberger Druckmaschinen Ag Printing unit for water based inks
DE19614887A1 (de) * 1996-04-16 1997-10-23 Voith Sulzer Papiermasch Gmbh Maschine zur Herstellung einer Materialbahn
US5915473A (en) * 1997-01-29 1999-06-29 American Standard Inc. Integrated humidity and temperature controller
FI108633B (fi) * 1998-07-03 2002-02-28 Metso Paper Inc Menetelmä ja järjestelmä paperirainan jälkikäsittelykoneella tai vastaavalla

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001075224A1 (fr) * 2000-04-04 2001-10-11 Metso Paper, Inc. Procede et agencement pour controler l'humidite dans une calandreuse a plusieurs cylindres
US6881301B2 (en) 2000-04-04 2005-04-19 Metso Paper, Inc. Method and arrangement for controlling moisture in a multiroll calender
WO2005049918A1 (fr) * 2003-11-20 2005-06-02 Metso Paper, Inc. Procede permettant de traiter une nappe fibreuse dans la section de sechage d'une machine a papier/carton et dans un dispositif de finissage place apres la section de sechage
CN1856619B (zh) * 2003-11-20 2010-12-08 美卓造纸机械公司 一种用于在造纸机/纸板机的干燥部以及位于干燥部后的整饰设备中处理纤维纸幅的方法
DE112004002075B4 (de) 2003-11-20 2019-02-21 Valmet Technologies, Inc. Verfahren zur Behandlung einer Faserbahn in dem Trockenbereich einer Papier-/Kartonmaschine und in einer danach angeordneten Fertigbearbeitungsvorrichtung

Also Published As

Publication number Publication date
EP1026318B1 (fr) 2004-03-24
EP1026318A3 (fr) 2001-08-16
US6694640B1 (en) 2004-02-24
DE50005755D1 (de) 2004-04-29
DE19904891C1 (de) 2000-08-31

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