EP0779391A1 - Procédé pour le broyage de fibres de papier - Google Patents

Procédé pour le broyage de fibres de papier Download PDF

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Publication number
EP0779391A1
EP0779391A1 EP96115697A EP96115697A EP0779391A1 EP 0779391 A1 EP0779391 A1 EP 0779391A1 EP 96115697 A EP96115697 A EP 96115697A EP 96115697 A EP96115697 A EP 96115697A EP 0779391 A1 EP0779391 A1 EP 0779391A1
Authority
EP
European Patent Office
Prior art keywords
grinding
tools
stage
primary
carried out
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
EP96115697A
Other languages
German (de)
English (en)
Other versions
EP0779391B1 (fr
Inventor
Frank Peter Dr. Meltzer
Josef Schneid
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.)
Voith Paper Fiber and Environmental Solutions GmbH and Co KG
Original Assignee
Voith Sulzer Stoffaufbereitung GmbH
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 Voith Sulzer Stoffaufbereitung GmbH filed Critical Voith Sulzer Stoffaufbereitung GmbH
Publication of EP0779391A1 publication Critical patent/EP0779391A1/fr
Application granted granted Critical
Publication of EP0779391B1 publication Critical patent/EP0779391B1/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
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills

Definitions

  • the invention relates to a method for grinding paper fibers according to the preamble of claim 1.
  • the grinding tools used for grinding are also called sets and installed in grinding machines - so-called refiners.
  • Such grinding machines have at least one rotor and at least one stator with either disc-ring or truncated cone-shaped surfaces on which the grinding tools or fittings are attached, so that grinding gaps can form between them.
  • Point Grinding tools on the work surfaces webs and grooves one speaks of "knife sets”.
  • grinding tools in which the grinding surfaces facing the material flow have a hard, porous structure with a roughness depth of one tenth to about three millimeters. Between these grinding surfaces there are often still a few channels for material guidance. The structure must not change too much over time. So it must not become smooth even with increasing wear of the clothing.
  • the wear of the grinding tools used in the process should also be as low as possible.
  • the hard-pored grinding surfaces mentioned are present on at least one side of the grinding tools. It is possible to have grinding surfaces of this type work against conventional knife sets. In such a case, the channels located between the knife bars can ensure sufficient transport of the pulp suspension to be ground, for example also without channels being required on the porous grinding surface. Then, due to the hard-pore grinding tool opposite the knife bars, the particularly favorable abrasive grinding treatment takes place. Of the Mass transfer in the grinding machine is increased if the knife set of such a combination is attached to the rotor. Given the large number of possible requirements for grinding development, it is up to the person skilled in the art to design grinding tools that move relative to one another, taking into account the characteristics specified in the claims.
  • each grinding stage can be controlled separately in terms of performance, i.e. optimally adapted to the specific grinding task of this stage and the properties of the grinding surfaces. Furthermore, the grinding becomes more uniform. In addition, it is often advantageous in the method if only a relatively low specific grinding work (kWh / to) is transferred per machine.
  • Fig. 1 shows the primary grinding stage 1 and the following secondary grinding stage 2.
  • the suspension flow with the paper fibers F is indicated as an arrow, which runs through both grinding stages.
  • the example shown is a realization with disc refiners.
  • grinding tools 3 and 3 ' are used which move relative to one another.
  • a stator 7 and a rotor 8 are indicated, which are positioned and movable relative to one another, the actual grinding gap S being formed between the grinding tools 3 and 3 'located on them.
  • two hard-pore grinding tools work against each other.
  • the pulp pre-ground in the primary grinding stage 1 then passes into the secondary grinding stage 2.
  • This is equipped with the grinding tools 4 and 4 ', in each case as conventional knife sets, which are attached to a stator 9 or rotor 10.
  • Fig. 1 The embodiment shown in Fig. 1 is only one of the conceivable possibilities.
  • FIG. 2 shows a variant in which the primary grinding stage 1 has both a hard-pored grinding tool 3 and a grinding tool 3 ′ provided with grinding strips 6.
  • the knife set is attached to the rotor 8, which leads to improved material conveyance. This can sometimes be undesirable if it would build up too much pressure. In such a case, the knife set would be fixed in the stator 7. A more even grinding could also be expected under certain circumstances.
  • Fig. 3 shows the part of a grinding tool with porous abrasive grinding surfaces 5, which - as already mentioned - can either work with knife sets or, in turn, with hard-pored surfaces.
  • the roughness depth T is exaggeratedly large and indicated by arrows.
  • Fig. 5 shows a not-to-scale diagram of the degree of grinding development.
  • the abscissa 12 represents the specific work, e.g. in kWh / to and ordinate 11 the grinding development, e.g. measured in degrees Schopper Riegler. Milling between points A and B takes place in the primary grinding stage and between points B and C in the secondary grinding stage. Correspondingly, sections 13 and 14 are on the abscissa 12.
  • the grinding development according to this method is shown in curve K 1. An energetically more favorable grinding degree development can be seen than if grinding were carried out in only one step (curve K 2).

Landscapes

  • Paper (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Multicomponent Fibers (AREA)
EP96115697A 1995-12-16 1996-10-01 Procédé pour le broyage de fibres de papier Expired - Lifetime EP0779391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19547069A DE19547069A1 (de) 1995-12-16 1995-12-16 Verfahren zur Mahlung von Papierfasern
DE19547069 1995-12-16

Publications (2)

Publication Number Publication Date
EP0779391A1 true EP0779391A1 (fr) 1997-06-18
EP0779391B1 EP0779391B1 (fr) 2001-04-04

Family

ID=7780342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115697A Expired - Lifetime EP0779391B1 (fr) 1995-12-16 1996-10-01 Procédé pour le broyage de fibres de papier

Country Status (5)

Country Link
EP (1) EP0779391B1 (fr)
AT (1) ATE200322T1 (fr)
CA (1) CA2192728A1 (fr)
DE (2) DE19547069A1 (fr)
NO (1) NO964593L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105113306A (zh) * 2015-07-02 2015-12-02 浙江佳维康特种纸有限公司 一种高匀度高强度薄型纸的制浆工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808355A1 (de) * 1998-02-27 1999-09-02 Voith Sulzer Papiertech Patent Verfahren zur Mahlung von Papierfasern

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2722906A1 (de) * 1977-04-19 1978-11-02 Escher Wyss Gmbh Anlage zur entstippung von faserstoffsuspensionen fuer papiermaschinen
US4166584A (en) * 1975-09-05 1979-09-04 Asplund Arne J A Apparatus for producing pulp from lignocellulose-containing material
WO1991002841A1 (fr) * 1989-08-24 1991-03-07 Sprout-Bauer, Inc. Element de raffinage et son procede de fabrication
AT393520B (de) * 1989-08-16 1991-11-11 Peter Mueller Ges M B H & Co K Scheibe bzw. scheibensegment fuer scheibenmuehlen sowie verfahren zur herstellung derartiger scheiben bzw. scheibensegmente
EP0480851A1 (fr) * 1990-10-11 1992-04-15 Technogenia S.A. Plaque à surface antiabrasion, et procédé pour sa réalisation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166584A (en) * 1975-09-05 1979-09-04 Asplund Arne J A Apparatus for producing pulp from lignocellulose-containing material
DE2722906A1 (de) * 1977-04-19 1978-11-02 Escher Wyss Gmbh Anlage zur entstippung von faserstoffsuspensionen fuer papiermaschinen
AT393520B (de) * 1989-08-16 1991-11-11 Peter Mueller Ges M B H & Co K Scheibe bzw. scheibensegment fuer scheibenmuehlen sowie verfahren zur herstellung derartiger scheiben bzw. scheibensegmente
WO1991002841A1 (fr) * 1989-08-24 1991-03-07 Sprout-Bauer, Inc. Element de raffinage et son procede de fabrication
EP0480851A1 (fr) * 1990-10-11 1992-04-15 Technogenia S.A. Plaque à surface antiabrasion, et procédé pour sa réalisation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105113306A (zh) * 2015-07-02 2015-12-02 浙江佳维康特种纸有限公司 一种高匀度高强度薄型纸的制浆工艺

Also Published As

Publication number Publication date
DE59606710D1 (de) 2001-05-10
EP0779391B1 (fr) 2001-04-04
ATE200322T1 (de) 2001-04-15
NO964593D0 (no) 1996-10-30
NO964593L (no) 1997-06-17
DE19547069A1 (de) 1997-06-19
CA2192728A1 (fr) 1997-06-17

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