BR9913176A - Process and apparatus for pretreating paper pulp - Google Patents

Process and apparatus for pretreating paper pulp

Info

Publication number
BR9913176A
BR9913176A BR9913176-5A BR9913176A BR9913176A BR 9913176 A BR9913176 A BR 9913176A BR 9913176 A BR9913176 A BR 9913176A BR 9913176 A BR9913176 A BR 9913176A
Authority
BR
Brazil
Prior art keywords
paper pulp
pretreating
pretreating paper
paper
pump
Prior art date
Application number
BR9913176-5A
Other languages
Portuguese (pt)
Other versions
BR9913176B1 (en
Inventor
Jouni Matula
Original Assignee
Andritz Ahlstrom Oy
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 Andritz Ahlstrom Oy filed Critical Andritz Ahlstrom Oy
Publication of BR9913176A publication Critical patent/BR9913176A/en
Publication of BR9913176B1 publication Critical patent/BR9913176B1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/26—De-aeration of paper stock
    • 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
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

The present invention relates to a method and apparatus for pretreating paper pulp. The method and apparatus according to the invention are especially preferably applicable to be used in the paper machine approach system of paper machines producing filler-containing grades. A characterizing feature of the method and apparatus according to the invention is that a propeller pump is used as the gas separation tank (16) feed pump (120).
BRPI9913176-5A 1998-08-21 1999-08-18 paper pulp pretreatment process and apparatus. BR9913176B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI981798A FI105489B (en) 1998-08-21 1998-08-21 Method and apparatus for pretreating paper pulp
PCT/FI1999/000684 WO2000011265A1 (en) 1998-08-21 1999-08-18 Method and apparatus for pretreating paper pulp

Publications (2)

Publication Number Publication Date
BR9913176A true BR9913176A (en) 2001-05-15
BR9913176B1 BR9913176B1 (en) 2009-05-05

Family

ID=8552339

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9913176-5A BR9913176B1 (en) 1998-08-21 1999-08-18 paper pulp pretreatment process and apparatus.

Country Status (12)

Country Link
EP (1) EP1121483B1 (en)
JP (1) JP2002523642A (en)
KR (1) KR20010072847A (en)
CN (1) CN1134567C (en)
AT (1) ATE260357T1 (en)
AU (1) AU5374999A (en)
BR (1) BR9913176B1 (en)
CA (1) CA2340438C (en)
DE (1) DE69915089T2 (en)
ES (1) ES2214877T3 (en)
FI (1) FI105489B (en)
WO (1) WO2000011265A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122916B (en) * 2007-04-03 2012-08-31 Andritz Oy Device for degassing in connection with a paper machine or the like
DE102009006715A1 (en) * 2009-01-29 2010-08-05 Voith Patent Gmbh broke preparation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219340A (en) * 1978-12-14 1980-08-26 Clark & Vicario Corporation Method and apparatus for outflowing liquids from chamber maintained under vacuum
FI89728C (en) * 1992-05-19 1993-11-10 Pom Dev Oy Ab PROCEDURE FOR THE CIRCULATION OF PROCESS VATTNET I EN PAPER MACHINERY
FI97332B (en) * 1993-12-23 1996-08-30 Pom Technology Oy Ab Apparatus and method for pumping and separating a mixture of gas and liquid

Also Published As

Publication number Publication date
FI981798A0 (en) 1998-08-21
DE69915089D1 (en) 2004-04-01
AU5374999A (en) 2000-03-14
CN1313917A (en) 2001-09-19
CN1134567C (en) 2004-01-14
EP1121483A1 (en) 2001-08-08
FI105489B (en) 2000-08-31
CA2340438A1 (en) 2000-03-02
KR20010072847A (en) 2001-07-31
BR9913176B1 (en) 2009-05-05
CA2340438C (en) 2008-01-15
ATE260357T1 (en) 2004-03-15
FI981798A (en) 2000-02-22
ES2214877T3 (en) 2004-09-16
WO2000011265A1 (en) 2000-03-02
EP1121483B1 (en) 2004-02-25
DE69915089T2 (en) 2004-09-09
JP2002523642A (en) 2002-07-30

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved
B25G Requested change of headquarter approved
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 18/08/1999, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2475 DE 12-06-2018 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.