EP1348802A1 - Procédé et appareil pour disperser une pulpe de fibres de papier - Google Patents

Procédé et appareil pour disperser une pulpe de fibres de papier Download PDF

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Publication number
EP1348802A1
EP1348802A1 EP03005093A EP03005093A EP1348802A1 EP 1348802 A1 EP1348802 A1 EP 1348802A1 EP 03005093 A EP03005093 A EP 03005093A EP 03005093 A EP03005093 A EP 03005093A EP 1348802 A1 EP1348802 A1 EP 1348802A1
Authority
EP
European Patent Office
Prior art keywords
steam
paper pulp
screw
heated
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.)
Granted
Application number
EP03005093A
Other languages
German (de)
English (en)
Other versions
EP1348802B1 (fr
Inventor
Helmuth Dipl.Ing.Dr. Gabl
Andreas Dipl.Ing.Dr. Gorton-Hülgerth
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.)
Andritz AG
Original Assignee
Andritz AG
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 AG filed Critical Andritz AG
Priority to AT03005093T priority Critical patent/ATE408041T1/de
Publication of EP1348802A1 publication Critical patent/EP1348802A1/fr
Application granted granted Critical
Publication of EP1348802B1 publication Critical patent/EP1348802B1/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
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/004—Methods of beating or refining including disperging or deflaking
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/34—Other mills or refiners
    • D21D1/38—Other mills or refiners with horizontal shaft
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor

Definitions

  • the invention relates to a method for dispersing a paper pulp, in which a pre-dewatered substance is heated, conveyed and in is dispersed in a disperser. It also relates to a device for Execution of the procedure.
  • Such a method or device are e.g. from the NO 302 186 B1 known.
  • the particular disadvantage is high outlay on equipment and also the space requirement of such a system.
  • Other such methods and devices are e.g. from the DE 199 54 246 A1 known.
  • a system is analogous to NO 302 186 B1 described, on the other hand, as a further possibility direct supply of steam between the grinding plates of the disperser is provided. The latter has the disadvantage that only a short dwell time is possible and does not achieve a complete and even warm-up can be.
  • the aim of the invention is therefore to propose a method with which one good and even heating with little equipment can be guaranteed and, if necessary, additionally Chemicals can be added before dispersion.
  • the invention is therefore characterized in that the paper pulp is heated immediately before entering the dispersion zone. So that can an additional unit, such as a heating screw, can be saved, still ensuring complete heating of all particles becomes.
  • the dispersion zone can be a well warmed up paper pulp are fed.
  • the paper pulp while mixing is being mixed can be a very even one Warming up can be achieved.
  • the pulp is heated by steam and is at the same time A vacuum is applied to the conveyor unit so that the steam can be targeted and the heat transfer to the paper pulp can be optimized.
  • the invention further relates to a device for dispersing a Paper pulp, with a feed device for steam, a conveyor unit and a disperger. It is characterized by the fact that Conveyor unit at least one inlet (nozzle or inlet openings) for steam. This means that just before the disperger Paper pulp can be heated and an additional heating unit omitted.
  • the delivery unit is designed as a mixing screw is an even mixing with steam and thus a uniform warm-up can be achieved.
  • At least one Spigot designed as a vacuum connection, so a targeted steam flow and optimal heat transfer can be achieved.
  • the conveyor unit for example mixing screw has a hollow shaft, the hollow shaft having spikes for interference can. This allows the steam to be directed along the conveyor path are fed, resulting in a more even distribution and thus Warming up leads.
  • Fig. 1 is a system according to the prior art
  • Fig. 2 is a plan view on a device according to the invention
  • Fig. 3 is a view of Fig. 2 according to arrow III
  • Fig. 4 shows a section through an inventive 5
  • FIG. 6 shows a special embodiment of the invention
  • FIG. 7 shows a section through Fig. 4 with a further variant of the invention.
  • a system according to the prior art is shown in which a screw press 1 for dewatering the paper fiber suspension is provided.
  • the dehydrated suspension is then with a Consistency of approx. 20 - 35%, advantageously 25 - 30%, via a shaft 2 a heater 3 supplied with rotating blades.
  • the heated suspension falls into a screw 4 for feeding Disperger 5.
  • the steam is the heater 3 through a steam line 6 supplied, with a part already inserted in the shaft 2 can be.
  • the suspension to be treated is over a Inlet 7 of the screw press 1 is fed and occurs as a plug 8 in the end.
  • the plug 8 at the end of the screw press 1 is used here as a vapor barrier.
  • FIG. 2 shows a top view of a device according to the invention.
  • Lines 10, 10 can also be seen here, via which the pulp suspension Steam or chemicals can be added.
  • Chemicals come in both liquid or gaseous bleach as well Hygiene chemicals such as Peroxide, caustic soda, chlorine, ozone or Dispersant in question.
  • Fig. 3 shows a view of Fig. 2 according to arrow III.
  • the screw press 1 is connected to the stuffing screw 8 'via a shaft 2.
  • the pulp suspension is further conveyed to the conveyor unit 9, In particular, feed screw is fed, the stuffing screw 8 ' also serves as a vapor barrier for the steam supplied through line 10.
  • the disperser 5 is then arranged behind the feed screw.
  • FIG. 4 shows a section through a device according to the invention.
  • Stubs 11 on the jacket 12 at the beginning of the conveyor unit or nozzle 11 'or 11 " be attached in the end part of the conveyor unit.
  • chemicals can also be added.
  • the steam is introduced via the nozzle 11, 11 'or 11 ", it can also a vacuum (against direction 14) is applied to the hollow shaft 13.
  • a vacuum (against direction 14) is applied to the hollow shaft 13.
  • steam can be introduced through the hollow shaft 13 and advantageously can be sucked off by nozzle 11.
  • you can chemicals are added through the nozzle 11 'or 11 ".
  • the suspension is then thoroughly warmed up and the disperser 5 mixed mixed.
  • FIG. 5 schematically shows the structure of the device according to the invention, steam is supplied in the direction 14 through the hollow shaft 13. about the length of the wave, the steam enters evenly at different points out.
  • the pulp suspension has a temperature of about 20 to 80 ° C, usually 40 - 60 ° C.
  • the excess steam is then through the Sockets 11, 11 'and 11 "are suctioned off. Sockets 11, 11', 11" can also as attached to the screw shell 12, all or part of the Extending channels can be executed.
  • the pulp suspension Before entering the The pulp suspension then has a temperature in the dispersion zone greater than 85 ° C.
  • Fig. 6 shows one way of supplying steam.
  • the on the hollow shaft 13th attached helix 15 is supported by a wall 18, so that a cavity 19 is formed.
  • the steam emerges from the hollow shaft 13 through openings 20 into the cavity 19 and is then through inlet openings 21, 21 'led into the pulp suspension.
  • Fig. 7 corresponds to a section along line VII-VII in Fig. 4.
  • the inside of the screw shell 12 running hollow shaft 13 has a plurality of mandrels 16 that can have different lengths.
  • the mandrels 16 are provided with inlet openings 21, 21 'in suspension ensure a distribution over the cross section of the conveyor unit 9.
  • the mandrels 16 can also be on their upper (away from the shaft) Be open at the end.

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
EP03005093A 2002-03-27 2003-03-07 Procédé et appareil pour disperser une pulpe de fibres de papier Expired - Lifetime EP1348802B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT03005093T ATE408041T1 (de) 2002-03-27 2003-03-07 Verfahren und vorrichtung zur dispergierung eines papierfaserstoffes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0048002A AT411604B (de) 2002-03-27 2002-03-27 Verfahren und vorrichtung zur dispergierung eines papierfaserstoffes
AT4802002 2002-03-27

Publications (2)

Publication Number Publication Date
EP1348802A1 true EP1348802A1 (fr) 2003-10-01
EP1348802B1 EP1348802B1 (fr) 2008-09-10

Family

ID=3674924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03005093A Expired - Lifetime EP1348802B1 (fr) 2002-03-27 2003-03-07 Procédé et appareil pour disperser une pulpe de fibres de papier

Country Status (8)

Country Link
US (1) US20060108083A1 (fr)
EP (1) EP1348802B1 (fr)
CN (1) CN1306113C (fr)
AT (2) AT411604B (fr)
CA (1) CA2421407A1 (fr)
DE (1) DE50310459D1 (fr)
MX (1) MXPA03002619A (fr)
NO (1) NO330431B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020094322A1 (fr) * 2018-11-08 2020-05-14 Voith Patent Gmbh Rotor pour un élément de chauffage

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT507837B1 (de) * 2008-12-29 2010-10-15 Andritz Ag Maschf Verfahren und vorrichtung zur entwässerung und dispergierung eines faserstoffes
CN106381738A (zh) * 2016-09-28 2017-02-08 广西大学 一种废纸铝塑包装盒快速分离的方法
CN109173963A (zh) * 2018-09-30 2019-01-11 山东世纪阳光纸业集团有限公司 一种生物反应横管
SE542682C2 (en) 2018-10-31 2020-06-23 Valmet Oy A discharge screw arrangement for discharging lignocellulosic material from a lignocellulosic treatment reactor
SE1950436A1 (en) * 2019-04-08 2020-10-06 Valmet Oy Reactor assembly and method for treatment of biomass material

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005643A1 (fr) * 1986-03-18 1987-09-24 Thune-Eureka A/S Raffineur a disques
US4909900A (en) * 1986-03-04 1990-03-20 Sulzer-Escher Wyss Gmbh Method for high temperature, high consistency quick bleaching of raw paper pulp
US5176793A (en) * 1988-08-30 1993-01-05 Cellwood Machinery Ab Method of treating and a disperger for disintegrating wood pulp, especially containing waste paper
WO1998004774A1 (fr) * 1996-07-25 1998-02-05 Cellwood Machinery Ab Procede et appareil de blanchiment de pate de bois melangee a des dechets de papier
US5958179A (en) * 1996-04-16 1999-09-28 Voith Sulzer Stoffaubereitung Gmbh Process for increasing pulp whiteness by bleaching printed wastepaper under intense dispersing mechanical treatment
EP1096062A1 (fr) * 1999-10-29 2001-05-02 Voith Paper Patent GmbH Procédé pour améliorer l'homogénéité et le degré de blancheur de pâtes à papier
US20010037866A1 (en) * 2000-04-13 2001-11-08 Voith Paper Patent Gmbh Process for dispersing a fibrous paper stock and device for performing the process
DE10102449C1 (de) * 2001-01-19 2002-03-21 Voith Paper Patent Gmbh Vorrichtung zur Heiß-Dispergierung eines Papierfaserstoffes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396587A (en) * 1941-03-20 1946-03-12 American Defibrator Apparatus for producing pulp
SE436287B (sv) * 1983-04-12 1984-11-26 Sunds Defibrator Sett och anordning for framstellning av fibermassa fran lignocellulosahaltigt material
DE3728890C1 (de) * 1987-08-29 1988-07-14 Escher Wyss Gmbh Verfahren zur Regelung der spezifischen Dispergierarbeit
US5501768A (en) * 1992-04-17 1996-03-26 Kimberly-Clark Corporation Method of treating papermaking fibers for making tissue
NO180241C (no) * 1994-12-14 1997-03-12 Kvaerner Hymac As Innretning for behandling av partikkelmasse
US6267847B1 (en) * 1999-11-15 2001-07-31 Voith Sulzer Paper Technology North America, Inc. Pulper for a stock preparation system
DE10107448A1 (de) * 2001-02-16 2002-08-22 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Beladen von in einer Faserstoffsuspension enthaltenen Fasern mit einem Füllstoff

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4909900A (en) * 1986-03-04 1990-03-20 Sulzer-Escher Wyss Gmbh Method for high temperature, high consistency quick bleaching of raw paper pulp
WO1987005643A1 (fr) * 1986-03-18 1987-09-24 Thune-Eureka A/S Raffineur a disques
US5176793A (en) * 1988-08-30 1993-01-05 Cellwood Machinery Ab Method of treating and a disperger for disintegrating wood pulp, especially containing waste paper
US5958179A (en) * 1996-04-16 1999-09-28 Voith Sulzer Stoffaubereitung Gmbh Process for increasing pulp whiteness by bleaching printed wastepaper under intense dispersing mechanical treatment
WO1998004774A1 (fr) * 1996-07-25 1998-02-05 Cellwood Machinery Ab Procede et appareil de blanchiment de pate de bois melangee a des dechets de papier
EP1096062A1 (fr) * 1999-10-29 2001-05-02 Voith Paper Patent GmbH Procédé pour améliorer l'homogénéité et le degré de blancheur de pâtes à papier
US20010037866A1 (en) * 2000-04-13 2001-11-08 Voith Paper Patent Gmbh Process for dispersing a fibrous paper stock and device for performing the process
DE10102449C1 (de) * 2001-01-19 2002-03-21 Voith Paper Patent Gmbh Vorrichtung zur Heiß-Dispergierung eines Papierfaserstoffes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020094322A1 (fr) * 2018-11-08 2020-05-14 Voith Patent Gmbh Rotor pour un élément de chauffage
CN112969828A (zh) * 2018-11-08 2021-06-15 福伊特专利有限公司 用于加热机组的转子

Also Published As

Publication number Publication date
ATA4802002A (de) 2003-08-15
AT411604B (de) 2004-03-25
CN1306113C (zh) 2007-03-21
DE50310459D1 (de) 2008-10-23
CN1446976A (zh) 2003-10-08
MXPA03002619A (es) 2004-02-12
ATE408041T1 (de) 2008-09-15
CA2421407A1 (fr) 2003-09-27
NO20031223L (no) 2003-09-29
EP1348802B1 (fr) 2008-09-10
US20060108083A1 (en) 2006-05-25
NO330431B1 (no) 2011-04-11
NO20031223D0 (no) 2003-03-17

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