EP1304413A3 - Drying section and a smoothing device for the drying section - Google Patents

Drying section and a smoothing device for the drying section Download PDF

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Publication number
EP1304413A3
EP1304413A3 EP02020540A EP02020540A EP1304413A3 EP 1304413 A3 EP1304413 A3 EP 1304413A3 EP 02020540 A EP02020540 A EP 02020540A EP 02020540 A EP02020540 A EP 02020540A EP 1304413 A3 EP1304413 A3 EP 1304413A3
Authority
EP
European Patent Office
Prior art keywords
web
material web
wird
die
smoothing
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Withdrawn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
EP02020540A
Other languages
German (de)
French (fr)
Other versions
EP1304413A2 (en
Inventor
Jens Dr. Müller
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
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 DE2001151456 external-priority patent/DE10151456A1/en
Priority claimed from DE2001151457 external-priority patent/DE10151457A1/en
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1304413A2 publication Critical patent/EP1304413A2/en
Publication of EP1304413A3 publication Critical patent/EP1304413A3/en
Withdrawn legal-status Critical Current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
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices

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  • Paper (AREA)

Abstract

Eine Trockenpartie (10) einer Maschine zur Herstellung einer Materialbahn (22), insbesondere Papier- und/oder Kartonbahn, umfasst einen in Bahnlaufrichtung (L) verlängerten Glättnip (12), der zwischen zwei einander gegenüberliegenden Pressflächen gebildet ist, von denen zumindest eine durch eine Schuhwalze (14) gebildet ist, wobei zumindest 70% und vorzugsweise zumindest 90% des Schuhwalzenaußendurchmessers über dem Maschinenboden (16) liegen. Bei einem Verfahren zum kombinierten Trocknen und Glätten einer Materialbahn, insbesondere Papier- oder Kartonbahn, in einer Trockenpartei sind die folgenden Schritte vorgesehen:

  • die Materialbahn wird zunächst bis zu einem vorgebbaren Trockengehalt > 60%, insbesondere > 65% und vorzugsweise > 70% getrocknet,
  • die diesen vorgebbaren Trockengehalt aufweisende Materialbahn wird durch einen in Bahnlaufrichtung verlängerten Glättnip geführt, der zwischen zwei einander gegenüberliegenden Preßflächen gebildet ist, von denen zumindest eine durch ein umlaufendes Band gebildet und von denen zumindest eine beheizt ist,
  • die sich im verlängerten Glättnip ergebende Preßzeit wird > 0,8ms gewählt und
  • die Materialbahn wird nach dem Glättnip weiter getrocknet.
Figure 00000001
A dryer section (10) of a machine for producing a material web (22), in particular paper and / or cardboard web, comprises a smoothing nip (12) which is elongated in the web running direction (L) and is formed between two opposing pressing surfaces, at least one of which is formed by a shoe roll (14) is formed, at least 70% and preferably at least 90% of the shoe roll outer diameter lying above the machine base (16). The following steps are provided for a method for combined drying and smoothing of a material web, in particular paper or cardboard web, in a drying party:
  • the material web is first dried to a predeterminable dry content> 60%, in particular> 65% and preferably> 70%,
  • the material web having this predeterminable dry content is guided through a smoothing nip which is elongated in the web running direction and is formed between two opposing pressing surfaces, at least one of which is formed by a circumferential belt and at least one of which is heated,
  • the pressing time resulting in the extended smoothing nip is selected> 0.8ms and
  • the material web is further dried after the smoothing nip.
Figure 00000001
EP02020540A 2001-10-18 2002-09-16 Drying section and a smoothing device for the drying section Withdrawn EP1304413A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10151456 2001-10-18
DE2001151456 DE10151456A1 (en) 2001-10-18 2001-10-18 Paper mill drying nip drum is positioned above machine frame base line under a polyurethane feed belt and second drum
DE10151457 2001-10-18
DE2001151457 DE10151457A1 (en) 2001-10-18 2001-10-18 Paper mill drying nip drum is positioned above machine frame base line under a polyurethane feed belt and second drum

Publications (2)

Publication Number Publication Date
EP1304413A2 EP1304413A2 (en) 2003-04-23
EP1304413A3 true EP1304413A3 (en) 2004-05-12

Family

ID=26010404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020540A Withdrawn EP1304413A3 (en) 2001-10-18 2002-09-16 Drying section and a smoothing device for the drying section

Country Status (2)

Country Link
US (1) US7114268B2 (en)
EP (1) EP1304413A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005009858A1 (en) * 2005-03-04 2006-09-07 Voith Paper Patent Gmbh paper machine

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451449A1 (en) * 1990-04-09 1991-10-16 Sulzer-Escher Wyss Gmbh Method of smoothing a paper or cardboard web coated on both sides
DE4328505A1 (en) * 1993-08-25 1995-03-16 Voith Gmbh J M Roll capable of cantilever mounting
DE19540898A1 (en) * 1995-11-02 1997-05-07 Voith Sulzer Papiermasch Gmbh Method and device for treating a fibrous or paper web in a press device
DE19602697A1 (en) * 1995-12-22 1997-06-26 Voith Sulzer Papiermasch Gmbh Paper machine drying section which includes pressure roll
DE19604675A1 (en) * 1996-02-09 1997-08-14 Voith Sulzer Papiermasch Gmbh Paper-making machine drying section
EP0851059A1 (en) * 1996-12-24 1998-07-01 Voith Sulzer Papiermaschinen GmbH Machine for making a continuous web material
US6065222A (en) * 1996-02-28 2000-05-23 Valmet Corporation Dryer sections with intermediate calendering in a paper machine
US6189442B1 (en) * 1998-12-16 2001-02-20 Valmet Corporation Apparatus for calendering paper
DE19941336A1 (en) * 1999-08-31 2001-03-01 Voith Paper Patent Gmbh Drying device
US6203307B1 (en) * 1997-08-28 2001-03-20 Champion International Corporation System for finishing surface of a web of paper having an improved continuous finishing belt

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311998A1 (en) * 1983-04-02 1984-10-04 J.M. Voith Gmbh, 7920 Heidenheim Belt press unit, preferably as a wet press of a paper machine
US5127168A (en) * 1989-07-20 1992-07-07 Pulp And Paper Research Institute Of Canada Method for manufacture of smooth and glossy papers and apparatus
DE4216264C2 (en) 1992-05-16 2000-05-25 Voith Sulzer Papiermasch Gmbh Process for drying and loosening a paper web
DE4407405C2 (en) 1994-03-05 2000-03-16 Voith Sulzer Papiermasch Gmbh Dryer section
DE19507374C2 (en) * 1995-03-03 1997-01-09 Voith Sulzer Papiermasch Gmbh Dryer section
DE19548307A1 (en) 1995-12-22 1997-06-26 Voith Sulzer Papiermasch Gmbh Drying section of paper or paper board machine
DE19654200A1 (en) * 1996-12-23 1998-06-25 Voith Sulzer Papiermasch Gmbh Wet press
SE511703C2 (en) * 1998-03-20 1999-11-08 Nordiskafilt Ab Albany Use of a transfer belt for a tissue machine
FI104100B1 (en) 1998-06-10 1999-11-15 Valmet Corp Integrated paper machine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451449A1 (en) * 1990-04-09 1991-10-16 Sulzer-Escher Wyss Gmbh Method of smoothing a paper or cardboard web coated on both sides
DE4328505A1 (en) * 1993-08-25 1995-03-16 Voith Gmbh J M Roll capable of cantilever mounting
DE19540898A1 (en) * 1995-11-02 1997-05-07 Voith Sulzer Papiermasch Gmbh Method and device for treating a fibrous or paper web in a press device
DE19602697A1 (en) * 1995-12-22 1997-06-26 Voith Sulzer Papiermasch Gmbh Paper machine drying section which includes pressure roll
DE19604675A1 (en) * 1996-02-09 1997-08-14 Voith Sulzer Papiermasch Gmbh Paper-making machine drying section
US6065222A (en) * 1996-02-28 2000-05-23 Valmet Corporation Dryer sections with intermediate calendering in a paper machine
EP0851059A1 (en) * 1996-12-24 1998-07-01 Voith Sulzer Papiermaschinen GmbH Machine for making a continuous web material
US6203307B1 (en) * 1997-08-28 2001-03-20 Champion International Corporation System for finishing surface of a web of paper having an improved continuous finishing belt
US6189442B1 (en) * 1998-12-16 2001-02-20 Valmet Corporation Apparatus for calendering paper
DE19941336A1 (en) * 1999-08-31 2001-03-01 Voith Paper Patent Gmbh Drying device

Also Published As

Publication number Publication date
US20030110660A1 (en) 2003-06-19
EP1304413A2 (en) 2003-04-23
US7114268B2 (en) 2006-10-03

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