ES2022356B3 - METHOD AND APPARATUS TO EXTRACT WATER FROM A FIBROUS TISSUE - Google Patents

METHOD AND APPARATUS TO EXTRACT WATER FROM A FIBROUS TISSUE

Info

Publication number
ES2022356B3
ES2022356B3 ES87305818T ES87305818T ES2022356B3 ES 2022356 B3 ES2022356 B3 ES 2022356B3 ES 87305818 T ES87305818 T ES 87305818T ES 87305818 T ES87305818 T ES 87305818T ES 2022356 B3 ES2022356 B3 ES 2022356B3
Authority
ES
Spain
Prior art keywords
period
flocks
web surface
paper
fibrous tissue
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.)
Expired - Lifetime
Application number
ES87305818T
Other languages
Spanish (es)
Inventor
Taisto Nevalainen
Olavi Tolonen
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.)
Valmet Technologies Oy
Original Assignee
Valmet Karhula 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=8522867&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2022356(B3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Valmet Karhula Inc filed Critical Valmet Karhula Inc
Application granted granted Critical
Publication of ES2022356B3 publication Critical patent/ES2022356B3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press 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
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • 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

Landscapes

  • Paper (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Seasonings (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Artificial Filaments (AREA)
  • Stringed Musical Instruments (AREA)

Abstract

The present invention relates to a method and apparatus for removing water from a fibrous web. The invention is intended especially for applications to be used in a twin wire former of a paper or a board machine. A problem earlier experienced in foudrinier machines has been fiber flocking in the web surface, which results from a Iong and tranquil period of flowing, during which period fibers have enough time to stick to one another and form flocks that deteriorate the paper quality. This problem has been solved by arranging rows of dewatering pressure elements (24, 32, 33) as part of the covers (25, 34, 33) of both upper and lower dewateri::g units (20, 30) so as to match or be aligned at least partly, whereby they generate an intensive turbulence field into the web surface to break the flocks that have already been formed.
ES87305818T 1986-07-02 1987-07-01 METHOD AND APPARATUS TO EXTRACT WATER FROM A FIBROUS TISSUE Expired - Lifetime ES2022356B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI862808A FI862808A7 (en) 1986-07-02 1986-07-02 FOERFARANDE OCH ANORDNING FOER AVVATTNING AV EN FIBERBANA.

Publications (1)

Publication Number Publication Date
ES2022356B3 true ES2022356B3 (en) 1991-12-01

Family

ID=8522867

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87305818T Expired - Lifetime ES2022356B3 (en) 1986-07-02 1987-07-01 METHOD AND APPARATUS TO EXTRACT WATER FROM A FIBROUS TISSUE

Country Status (8)

Country Link
EP (1) EP0251778B1 (en)
JP (1) JPH01118690A (en)
KR (1) KR900002102B1 (en)
AT (1) ATE63145T1 (en)
BR (1) BR8703365A (en)
DE (1) DE3769710D1 (en)
ES (1) ES2022356B3 (en)
FI (1) FI862808A7 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815316C2 (en) * 1988-05-05 1996-02-01 Voith Sulzer Papiermasch Gmbh Device for dewatering on a twin wire former
AU4307889A (en) * 1988-10-31 1990-05-28 Beloit Corporation Forming apparatus
FI86652C (en) * 1989-04-19 1992-09-25 Tampella Oy Ab Device in a paper machine for providing dewatering on the surface
FI98540C (en) * 1989-05-08 1997-07-10 Valmet Corp Device for forming a paper or board web of fibrous material
DE4002304A1 (en) * 1990-01-26 1991-08-14 Escher Wyss Gmbh SHAPER IN A PAPER MACHINE
DE4026953C2 (en) * 1990-01-26 1995-11-30 Escher Wyss Gmbh Dewatering device and method for dewatering on a twin wire former
DE4037017C2 (en) * 1990-11-20 1994-12-08 Escher Wyss Gmbh Wet part of a twin wire paper machine
FI90673C (en) * 1991-06-26 1994-03-10 Valmet Paper Machinery Inc Path forming section with double wire in a paper machine
DE4141607C2 (en) * 1991-12-17 1996-04-25 Voith Gmbh J M Twin wire former
DE10327424A1 (en) * 2003-06-18 2005-02-10 Voith Paper Patent Gmbh Device for improving the properties of a fibrous web produced in a sheet forming device
AT502805B1 (en) * 2006-01-05 2007-06-15 Andritz Ag Maschf METHOD AND DEVICE FOR DRAINING A FIBROUS WEB

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215594A (en) * 1962-10-08 1965-11-02 Black Clawson Co Paper forming apparatus
JPS5122521A (en) * 1974-08-15 1976-02-23 Kubota Ltd SEHISOCHITSUKITAUEKI
JPS612718Y2 (en) * 1981-03-28 1986-01-28
JPS6170091A (en) * 1984-09-12 1986-04-10 三菱重工業株式会社 Apparatus for uniformly dispersing paper stock
JPS6175898A (en) * 1984-09-19 1986-04-18 三菱重工業株式会社 Paper layer forming apparatus
JPS6189398A (en) * 1984-10-03 1986-05-07 三菱重工業株式会社 Paper layer forming device
JPS61119796A (en) * 1984-11-16 1986-06-06 三菱重工業株式会社 Paper layer forming apparatus

Also Published As

Publication number Publication date
BR8703365A (en) 1988-03-15
KR900002102B1 (en) 1990-04-02
KR880001887A (en) 1988-04-27
FI862808A7 (en) 1988-01-03
DE3769710D1 (en) 1991-06-06
JPH01118690A (en) 1989-05-11
EP0251778B1 (en) 1991-05-02
FI862808A0 (en) 1986-07-02
JPH0444038B2 (en) 1992-07-20
ATE63145T1 (en) 1991-05-15
EP0251778A1 (en) 1988-01-07

Similar Documents

Publication Publication Date Title
FI871928A0 (en) FOERFARANDE OCH ANORDNING FOER BEHANDLING AV FIBERSUSPENSION.
ES2022356B3 (en) METHOD AND APPARATUS TO EXTRACT WATER FROM A FIBROUS TISSUE
DE69330652D1 (en) METHOD AND DEVICE FOR CIRCULATING FIBER WASTE WATER IN A PAPER MACHINE.
DE69825462D1 (en) INTRODUCTION OF FIBER-FREE FOAM IN OR NEARBY A FABRIC TUBE DURING A FOAM PRODUCTION METHOD FOR PAPER SHEETS
DE59302907D1 (en) Process for the homogenization of the paper web composition
ATE68540T1 (en) MACHINE FOR MAKING FIBROUS WEBS.
SE8604035L (en) PROCEDURE AND DEVICE FOR IMPROVING THE PAPER MAKING PROCESS IN A PLANVIRA SECTION
SE8006566L (en) PROCEDURE AND DEVICE FOR WASHING THE FIBER MASS
DE69601194D1 (en) Process for deinking waste paper
ATE104382T1 (en) METHOD AND APPARATUS FOR MAKING AN IMPROVED QUALITY CELLULOSE PULP.
DE3787089D1 (en) METHOD AND DEVICE FOR THICKENING A FIBER FLOATING.
ATE69077T1 (en) METHOD OF FORMING A FIBER WEB IN A PAPER MACHINE AND APPARATUS FOR CARRYING OUT THE METHOD.
FI861811A7 (en) FOERFARANDE FOER REGLERING AV TVAERSNITT PROFILEN HOS EN PAPPERSBANA SAMT EN ANORDNING FOER TILLAEMPNING AV FOERFARANDE.
ATE329078T1 (en) METHOD AND DEVICE FOR RECOVERING ENERGY IN A PAPER MACHINE
FR2764614B1 (en) PROCESS AND PLANT FOR THE CONTINUOUS PREPARATION OF A PULP FROM LIGNOCELLULOSIC TEXTILE FIBERS
ATE130891T1 (en) METHOD FOR FORMING AND RELEASING WATER FROM A BELT ON A FOURDRINIER MACHINE.
ATE217923T1 (en) METHOD AND APPARATUS FOR DEFINING AND SCREENING A RECYCLED FIBER MATERIAL
DE69941984D1 (en) METHOD AND DEVICE FOR WASHING A MIXTURE OF FIBROUS SUSPENSIONS
DE69915227D1 (en) Method and device for treatment of rejects
DK0741817T3 (en) Method and apparatus for treating recycled pulp
DE4024958A1 (en) Paper pulp smoothing - has oscillating materials at wet section of paper-making machine to prevent local fibre build=up
ATE20918T1 (en) METHOD AND APPARATUS FOR MAKING A FIBER PULP FROM LIGNOCELLULOSIC FIBROUS MATERIAL.