SE8403392D0 - PROCEDURE AND DEVICE FOR THERMO-MECHANICAL MASS PREPARATION - Google Patents

PROCEDURE AND DEVICE FOR THERMO-MECHANICAL MASS PREPARATION

Info

Publication number
SE8403392D0
SE8403392D0 SE8403392A SE8403392A SE8403392D0 SE 8403392 D0 SE8403392 D0 SE 8403392D0 SE 8403392 A SE8403392 A SE 8403392A SE 8403392 A SE8403392 A SE 8403392A SE 8403392 D0 SE8403392 D0 SE 8403392D0
Authority
SE
Sweden
Prior art keywords
fibrous material
thermo
procedure
mass preparation
refiner
Prior art date
Application number
SE8403392A
Other languages
Swedish (sv)
Other versions
SE8403392L (en
Inventor
E A Alvord
Original Assignee
Koppers Co 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
Application filed by Koppers Co Inc filed Critical Koppers Co Inc
Publication of SE8403392D0 publication Critical patent/SE8403392D0/en
Publication of SE8403392L publication Critical patent/SE8403392L/en

Links

Classifications

    • 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
    • D21B1/14—Disintegrating in mills

Landscapes

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

Abstract

An apparatus for thermo-mechanical pulping of wood comprising a first refiner means for reducing the chips to a partially reduced fibrous material, a second refiner means for further reducing the partially reduced fibrous material recovered from the first refiner means to a more completely reduced fibrous material, and means for separating the more completely reduced fibrous material into accept fibrous material and reject fibrous material, wherein the improvement comprises a means for reintroducing the reject fibrous material into the second refiner means and the method of using this apparatus.
SE8403392A 1983-06-28 1984-06-26 PROCEDURE AND DEVICE FOR THERMO-MECHANICAL MASS PREPARATION SE8403392L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50880583A 1983-06-28 1983-06-28

Publications (2)

Publication Number Publication Date
SE8403392D0 true SE8403392D0 (en) 1984-06-26
SE8403392L SE8403392L (en) 1984-12-29

Family

ID=24024149

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8403392A SE8403392L (en) 1983-06-28 1984-06-26 PROCEDURE AND DEVICE FOR THERMO-MECHANICAL MASS PREPARATION

Country Status (4)

Country Link
BR (1) BR8403147A (en)
CA (1) CA1252665A (en)
FI (1) FI842341A (en)
SE (1) SE8403392L (en)

Also Published As

Publication number Publication date
FI842341A0 (en) 1984-06-11
CA1252665A (en) 1989-04-18
FI842341A (en) 1984-12-29
SE8403392L (en) 1984-12-29
BR8403147A (en) 1985-06-11

Similar Documents

Publication Publication Date Title
NZ222539A (en) Method and apparatus for making filler-containing paper,by co-flocculating fine pulp
JPS5365401A (en) Method and apparatus for continuously producing pulp from fibrous lignocellulose material
DK158530C (en) METHOD FOR MAKING HIGH YIELD MASS
ES8503758A1 (en) Apparatus for deinking.
FI901515A0 (en) Apparatus for liquefying, separating and pumping fibrous cellulosic material
DE3364587D1 (en) Method and apparatus for producing fibre pulp from fibrous lignocellulose containing material
CA2013177A1 (en) Apparatus and method for sizing wood chips
ES437137A1 (en) Method of treating paper fibers in a stationary screen
FI900623A0 (en) Apparatus and method for removing lignin from cellulose pulp
AU2821184A (en) Method and apparatus for making fibre pulp
SE7900084L (en) DEFIBRATION SET AND DEVICE
EP0178068A3 (en) Improvements in or relating to detecting radioactive components in dry active waste
ES2003257A6 (en) Disk screen improvement for chip screening efficiency.
NO156327C (en) PROCEDURE FOR PROCESSING AND UTILIZATION OF ENERGY-RICH MATERIAL, AS WOOD-FREE PARTS OF WOOD ("GRT MATERIAL").
GB2048115B (en) Machines for producing shavings from chips of cellulosic material
SE8403392D0 (en) PROCEDURE AND DEVICE FOR THERMO-MECHANICAL MASS PREPARATION
SE8401410L (en) SET TO META SIZE DISTRIBUTION
IT8419917A0 (en) APPARATUS AND METHOD FOR CUTTING STAPLE FIBERS.
SE7804602L (en) DEFIBRATION METHOD AND DEVICE
NZ236216A (en) Apparatus for slicing wood chips for paper pulp preparation; shear hub
NO954089D0 (en) Apparatus and method for treating a mass slurry of waste paper
FI865281A0 (en) ANORDINATION FOR DEFIBRATION AND SORTERING OF MASS IN PAPER AND CELLULOSE INDUSTRY.
IT8422893A0 (en) IMPROVED PROCESS FOR PRODUCING PULP USING AN S-TRIAZINE ADDITIVE AND IMPROVED PULP AND PAPER CONTAINING AN S-TRIAZINE.
AU6734881A (en) Producing cellulosic pulp by the thermomechanical pulping method
KR830003623A (en) Fiber Separation Method from Pulp Sheet Sediments

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8403392-7

Effective date: 19900101

Format of ref document f/p: F