DE10343914A1 - Process and assembly to de-water fibrous suspension of paper or cardboard employs a top water skimmer with lower suction at outer margins - Google Patents

Process and assembly to de-water fibrous suspension of paper or cardboard employs a top water skimmer with lower suction at outer margins Download PDF

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Publication number
DE10343914A1
DE10343914A1 DE10343914A DE10343914A DE10343914A1 DE 10343914 A1 DE10343914 A1 DE 10343914A1 DE 10343914 A DE10343914 A DE 10343914A DE 10343914 A DE10343914 A DE 10343914A DE 10343914 A1 DE10343914 A1 DE 10343914A1
Authority
DE
Germany
Prior art keywords
skimmer
assembly
outer margins
water
fibrous suspension
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Withdrawn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
DE10343914A
Other languages
German (de)
Inventor
Volker Schmidt-Rohr
Johann Moser
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
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Priority to DE10343914A priority Critical patent/DE10343914A1/en
Publication of DE10343914A1 publication Critical patent/DE10343914A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
    • 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
    • D21F1/48—Suction apparatus

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  • Paper (AREA)

Abstract

In a papermaking assembly a feed of fibrous suspension is discharged from a headbox and sandwiched between two moving sieve drums (2, 3) with water suction assemblies above and below. The suction interface is sub-divided into zones by transverse battens. The suction power (p) is regulated in each zone. The first zone in the direction of travel has skimmer battens top (6) and bottom (7). The top skimmer has variable suction power over the width (B). The top skimmer operates at a pre set pressure of 2-6 kPa near the outer margins and at a different pressure between the outer margins. Also claimed is a commensurate assembly.
DE10343914A 2003-09-19 2003-09-19 Process and assembly to de-water fibrous suspension of paper or cardboard employs a top water skimmer with lower suction at outer margins Withdrawn DE10343914A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10343914A DE10343914A1 (en) 2003-09-19 2003-09-19 Process and assembly to de-water fibrous suspension of paper or cardboard employs a top water skimmer with lower suction at outer margins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10343914A DE10343914A1 (en) 2003-09-19 2003-09-19 Process and assembly to de-water fibrous suspension of paper or cardboard employs a top water skimmer with lower suction at outer margins

Publications (1)

Publication Number Publication Date
DE10343914A1 true DE10343914A1 (en) 2005-05-04

Family

ID=34398855

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10343914A Withdrawn DE10343914A1 (en) 2003-09-19 2003-09-19 Process and assembly to de-water fibrous suspension of paper or cardboard employs a top water skimmer with lower suction at outer margins

Country Status (1)

Country Link
DE (1) DE10343914A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1676951A1 (en) * 2004-12-30 2006-07-05 Voith Paper Patent GmbH Dewatering device of a twin-wire former of a machine for manufacturing a fibrous web

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504123A1 (en) * 1991-03-15 1992-09-16 Valmet Paper Machinery Inc. Twin-wire web former in a paper machine
US5552021A (en) * 1993-06-17 1996-09-03 Valmet Corporation Method, device and arrangement for regulating the control of a transverse profile of a paper web in a paper machine
DE19636792A1 (en) * 1996-09-11 1998-03-12 Voith Sulzer Papiermasch Gmbh Wire section and method for dewatering a fibrous web in a wire section
EP0665914B1 (en) * 1993-08-20 1998-07-29 J.M. Voith GmbH Two-wire former
DE19709294A1 (en) * 1997-03-07 1998-09-10 Voith Sulzer Papiermasch Gmbh Paper-making fourdrinier zone
DE19882280T1 (en) * 1997-04-02 2000-03-30 Valmet Corp Drainage device for a sheet former
DE69426169T2 (en) * 1993-05-18 2001-05-17 Valmet Corp Sheet forming section in a paper machine
US6254727B1 (en) * 1998-06-25 2001-07-03 Voith Sulzer Papiertechnik Patent Gmbh Two-wire former and method for operating the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504123A1 (en) * 1991-03-15 1992-09-16 Valmet Paper Machinery Inc. Twin-wire web former in a paper machine
DE69426169T2 (en) * 1993-05-18 2001-05-17 Valmet Corp Sheet forming section in a paper machine
US5552021A (en) * 1993-06-17 1996-09-03 Valmet Corporation Method, device and arrangement for regulating the control of a transverse profile of a paper web in a paper machine
EP0665914B1 (en) * 1993-08-20 1998-07-29 J.M. Voith GmbH Two-wire former
DE19636792A1 (en) * 1996-09-11 1998-03-12 Voith Sulzer Papiermasch Gmbh Wire section and method for dewatering a fibrous web in a wire section
DE19709294A1 (en) * 1997-03-07 1998-09-10 Voith Sulzer Papiermasch Gmbh Paper-making fourdrinier zone
DE19882280T1 (en) * 1997-04-02 2000-03-30 Valmet Corp Drainage device for a sheet former
US6254727B1 (en) * 1998-06-25 2001-07-03 Voith Sulzer Papiertechnik Patent Gmbh Two-wire former and method for operating the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1676951A1 (en) * 2004-12-30 2006-07-05 Voith Paper Patent GmbH Dewatering device of a twin-wire former of a machine for manufacturing a fibrous web

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee