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FI20125670L - Method and apparatus for pneumatic filling and feeding of liquid-filled hollow pulp fibers - Google Patents

Method and apparatus for pneumatic filling and feeding of liquid-filled hollow pulp fibers Download PDF

Info

Publication number
FI20125670L
FI20125670L FI20125670A FI20125670A FI20125670L FI 20125670 L FI20125670 L FI 20125670L FI 20125670 A FI20125670 A FI 20125670A FI 20125670 A FI20125670 A FI 20125670A FI 20125670 L FI20125670 L FI 20125670L
Authority
FI
Finland
Prior art keywords
fibers
gas
feed chamber
venturi tube
liquid
Prior art date
Application number
FI20125670A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20125670A7 (en
Inventor
Reijo Salminen
Original Assignee
Reijo Salminen
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 Reijo Salminen filed Critical Reijo Salminen
Priority to FI20125670A priority Critical patent/FI20125670L/en
Priority to PCT/FI2013/050651 priority patent/WO2013186443A1/en
Publication of FI20125670A7 publication Critical patent/FI20125670A7/en
Publication of FI20125670L publication Critical patent/FI20125670L/en

Links

Classifications

    • 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
    • D21C7/00—Digesters
    • D21C7/06—Feeding devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • 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
    • D21C9/001—Modification of pulp properties

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

The invention relates to method and apparatus for pneumatic supply and discharge of liquid filled hollow pulp fibers, particularly as a preparatory step for passing the fibers through one or more a venturi tubes (52, 56). According to the invention the fibers are supplied into a feed chamber (12, 14, 16) by means of gas and packed by letting the gas pass through a permeable wall (34) of the feed chamber to an outlet (38). The gas surrounding the liquid filled fibers in the feed chamber is then pressurized to substantially above atmospheric pressure, and the fibers and the surrounding gas are discharged through another outlet (36) and passed through at least one venturi tube. A first venturi tube (52) may disintegrate bundles of fibers into parts, which are carried by a lower pressure gas flow (48) into a second venturi tube (56) splitting individual fibers longitudinally so as to open their lumen for further pulp treatment.
FI20125670A 2012-06-15 2012-06-15 Method and apparatus for pneumatic filling and feeding of liquid-filled hollow pulp fibers FI20125670L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20125670A FI20125670L (en) 2012-06-15 2012-06-15 Method and apparatus for pneumatic filling and feeding of liquid-filled hollow pulp fibers
PCT/FI2013/050651 WO2013186443A1 (en) 2012-06-15 2013-06-13 Method and apparatus for pneumatic supply and discharge of liquid filled hollow pulp fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20125670A FI20125670L (en) 2012-06-15 2012-06-15 Method and apparatus for pneumatic filling and feeding of liquid-filled hollow pulp fibers

Publications (2)

Publication Number Publication Date
FI20125670A7 FI20125670A7 (en) 2013-12-16
FI20125670L true FI20125670L (en) 2013-12-16

Family

ID=48794129

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20125670A FI20125670L (en) 2012-06-15 2012-06-15 Method and apparatus for pneumatic filling and feeding of liquid-filled hollow pulp fibers

Country Status (2)

Country Link
FI (1) FI20125670L (en)
WO (1) WO2013186443A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573321A (en) * 1946-01-19 1951-10-30 Certain Teed Prod Corp Defibering apparatus
NZ187047A (en) * 1977-04-27 1981-03-16 Commw Scient Ind Res Org Explosive defibration of cellulosic plant material material passes through nozzle providing tortuous path for discharging material
US5785810A (en) 1991-08-21 1998-07-28 Salminen; Reijo K. Wood pulp processing apparatus and method
US6436233B1 (en) * 2000-05-18 2002-08-20 Andritz Inc. Feeding cellulose material to a treatment vessel
SE526704C2 (en) * 2003-12-30 2005-10-25 Kvaerner Pulping Tech Feeding of cellulose chips from a low pressure part to a high pressure part with a lock feeder

Also Published As

Publication number Publication date
FI20125670A7 (en) 2013-12-16
WO2013186443A9 (en) 2014-07-10
WO2013186443A1 (en) 2013-12-19

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Legal Events

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