EP1147805B1 - Procédé pour disperser une pulpe de fibres de papier et installation pour l'exécution du procédé - Google Patents

Procédé pour disperser une pulpe de fibres de papier et installation pour l'exécution du procédé Download PDF

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Publication number
EP1147805B1
EP1147805B1 EP01103044A EP01103044A EP1147805B1 EP 1147805 B1 EP1147805 B1 EP 1147805B1 EP 01103044 A EP01103044 A EP 01103044A EP 01103044 A EP01103044 A EP 01103044A EP 1147805 B1 EP1147805 B1 EP 1147805B1
Authority
EP
European Patent Office
Prior art keywords
fibrous material
roller
mallets
mallet
highly consistent
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.)
Expired - Lifetime
Application number
EP01103044A
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German (de)
English (en)
Other versions
EP1147805A1 (fr
Inventor
Almut Kriebel
Volker Niggl
Erich Peters
Roland Rauch
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 Patent GmbH
Original Assignee
Voith Paper Patent 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 Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1147805A1 publication Critical patent/EP1147805A1/fr
Application granted granted Critical
Publication of EP1147805B1 publication Critical patent/EP1147805B1/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
    • 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
    • D21B1/30—Defibrating by other means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
    • B01F33/831—Devices with consecutive working receptacles, e.g. with two intermeshing tools in one of the receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
    • B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
    • B01F33/83612—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by crushing or breaking
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/57—Mixing high-viscosity liquids with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
    • B01F27/1121—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades pin-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • B01F27/2711—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with intermeshing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis

Definitions

  • the invention relates to a method for dispersing paper pulp according to the Preamble of claim 1.
  • Procedure of the above Be e.g. used to improve the quality of fiber, which was obtained from waste paper. It is known that pulp by Dispersing can be homogenized and thereby significantly improved. This will a high-consistency fiber fabric that has a dry content between 15 and 35%. In many cases it is dispersed at a temperature that is well above the ambient temperature. Disperger sets with which processes of this type are compact and have an excellent dispersing effect. However, they require an even material flow. Since the dwell time of the Substance between them is very short, irregularities cannot be balanced. The result would be an uneven dispersion.
  • a particularly economical machine for thickening is the screw press.
  • the fiber suspension is between a screw conveyor and a perforated jacket surrounding it, wherein the water comes out through the holes in the jacket.
  • the resulting compact or Grafting is squeezed out of the snail and breaks into pieces. The sections are relatively large and therefore lead to an uneven flow subsequent apparatus.
  • a dispersing device in which the from a Screws originating from the screw press are fed directly. He is in one Shredding tool with scrapers or knives, which are in the Disperger inflow are.
  • the invention used drumstick takes the compressed by the squeezing of water Pieces of graft on and cut them up, especially since the circumferential beater with the interact with baffles fixed on the circumference. Larger chunks remain longer in the processing area until they can pass, so that the material flow to the Disperger becomes very even. It is then in the radially inner area of the Disperger sets further crushed and swirled, whereby very fine fiber crumbs arise.
  • steam is fed into a downstream one following heating zone of the clothing to bring the fabric to the necessary temperature heat. As a result of the previous shredding, a relatively short one is sufficient Heating time off.
  • the actual dispersion i.e. Change in the properties of the fabric takes place in the dispersion zone of the sets, which follows downstream.
  • Fig. 1 shows sections of a system that is used to carry out the invention The method is particularly well suited. You can see that in the upper part of the picture Screw press 8, in which a large part of the water-containing paper pulp S1 of the water W is squeezed out. This makes a compact, highly consistent Fibrous material S2 is produced, which breaks off in large pieces at the end of the press section and through a short chute 10 into the distribution device 9 below falls.
  • the flail roller 1 works on the Periphery, that is fixed to the housing of the distributor 9 Baffle pieces 3 together, so that the effect already described can occur.
  • Such impact pieces can, as drawn here, rod-shaped with radial alignment be or e.g.
  • the funnel passes through a drop funnel 11 thus treated highly consistent fibrous material S3 in a screw conveyor 7, which immediately before Disperger 4 is installed.
  • This screw conveyor 7 drives the fibrous material S3 into the central area of the Disperger 4, so that it is between the Dispergergamituren 5 and 6 arrives and is dispersed.
  • the gamituren have concentric axial interlocking rows of teeth that move past each other at a short distance become. The rotor and stator are therefore not pressed against each other.
  • Such Disperger sets are particularly effective, but require uniformity Dispersion as even a material flow as possible.
  • the substance is brought to a higher temperature for dispersion, for which purpose a steam feed 12 is present.
  • this steam feed 12 becomes hot water vapor D in the space between the two disperser sets fed.
  • This is expediently carried out in an annular heating zone 13, which is is located radially within the actual dispersion area 14 of the sets.
  • the interlocking rows of teeth act in such a way that in the the highly consistent paper pulp is known to be dispersed. After that the dispersed paper pulp S4 emerges from the disperser through a bottom opening out.
  • Fig. 2 illustrates the arrangement of the to carry out the method used devices in a different view, with a view of the Disperger 4.
  • Distribution device 9 is not only an optimal distribution of the at Screw press 8 obtained material, but also the advantage of a space-saving arrangement achieved. If the process is carried out on an industrial scale namely, because of the relatively large quantities, a screw press 8 with a relatively large one Shaft diameters can be selected. The one at the end of the worm shaft Fibrous is not flowable and should therefore be essentially vertical can fall down.
  • the location of the distribution device 9 in the manner shown enables the accumulation over the entire diameter of the screw press 8 Detect fiber and after appropriate treatment in the underlying Derive chute 10. It is therefore favorable to use the flail roller 1 at a right angle to the main conveying direction of the screw press 8. That unity Worm shaft and distribution device 9 can then relative to the Disperger 4 depending Space should be arranged appropriately.
  • the basic structure of the distribution device 9 with the flail roller 1 is shown in FIG Fig. 3.
  • the flail roller 1 with length L contains a number of flails 2, the circumscribe the outer ends on a circle with a diameter D. You work with them baffle pieces 3 fastened together on the housing 15 of this device. This will achieved that the incoming coarse paper pulp initially shredded becomes. The shredding takes place with relatively little force, which is what is to be attributed to the fact that the paper pulp obtained here is only compressed and that the only thing that matters is to dissolve this network. This is not comparable e.g. with the waste paper present in moist webs, e.g. in a fabric dissolver is processed.
  • the distances a are expediently between axially adjacent fixed impact pieces 3 selected so that the highly consistent Fibrous material S2 is calibrated in between, so that too little is passed broken pieces of cloth is prevented.
  • the particles passed through then have in a direction of extension a defined maximum dimension of e.g. 30 mm. Possibly must the distance a can be determined by a simple experiment. It could also be from Be advantageous to make it changeable so that the machine can work on different Requirements can be matched.
  • the axial distance b between them encountering flails 2 and impact pieces 3 has a strong influence on the Shredding effect of this device. It is advantageously between 5 and 20 mm.
  • the shape of the flail 2 or baffle 3 is appropriate to choose.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (19)

  1. Procédé destiné à la dispersion de matière fibreuse de papier, comportant les étapes suivantes :
    1.1 mise à disposition d'une matière fibreuse de papier (S1) contenant de l'eau ;
    1.2 expression d'une partie de l'eau (W) afin de former une matière fibreuse de papier (S2) de haute consistance en gros morceaux ;
    1.3 acheminement de la matière fibreuse de papier de haute consistance dans un disperseur (4) ;
    1.4 dispersion par un disperseur (2) comportant au moins deux garnitures de dispersion (5, 6), chacune d'entre elles comportant plusieurs rangées de dents s'engageant les unes dans les autres, et qui sont déplacées à un certain écartement les unes par rapport aux autres, moyen par lequel la matière fibreuse de papier de haute consistance est dispersée,
       caractérisé en ce que
    1.5 la matière fibreuse (S2) de haute consistance en gros morceaux est introduite avant la dispersion dans la zone d'action d'un cylindre rotatif (1) à battoirs, qui est muni de battoirs rotatifs (2) qui agissent conjointement avec des éléments d'impact fixes (3) périphériques, de telle sorte que la matière fibreuse (S2) de haute consistance soit ramollie et homogénéisée.
  2. Procédé selon la revendication 1,
       caractérisé en ce que
       le cylindre (1) à battoirs est disposé sensiblement à l'horizontale, et en ce que la matière arrive depuis le haut dans la zone d'action du cylindre (1) à battoirs.
  3. Procédé selon la revendication 1 ou 2,
       caractérisé en ce que
       l'expression de l'eau est effectuée à l'aide d'une presse à vis sans fin (8).
  4. Procédé selon la revendication 3,
       caractérisé en ce que
       le sens de transport de la presse à vis sans fin (8) est horizontal, et en ce que, par rapport à cela, la ligne médiane du cylindre (1) à battoirs est située à angle droite et horizontalement.
  5. Procédé selon l'une quelconque des revendications précédentes,
       caractérisé en ce que
       lés battoirs (2) sont déplacés à une vitesse périphérique comprise entre 1 et 5 m/s.
  6. Procédé selon la revendication 5,
       caractérisé en ce que
       les battoirs (2) sont déplacés à une vitesse périphérique comprise entre 2 et 4 m/s.
  7. Procédé selon l'une quelconque des revendications précédentes,
       caractérisé en ce que
       la matière fibreuse (S2) de haute consistance est calibrée entre des éléments d'impact (3) disposés à un écartement (a).
  8. Procédé selon la revendication 7,
       caractérisé en ce que
       la dimension maximale des morceaux de matière fibreuse calibrés est réglée dans un sens d'extension à une valeur comprise entre 5 et 50 mm.
  9. Procédé selon l'une quelconque des revendications précédentes,
       caractérisé en ce que
       une énergie spécifique de moins de 1 kWh/t est transmise à la matière fibreuse par le cylindre (1) à battoirs.
  10. Procédé selon l'une quelconque des revendications précédentes,
       caractérisé en ce que,
       après le passage dans le cylindre (1) à battoirs, la matière fibreuse tombe dans une vis de transport (7) qui l'introduit de façon centrale dans le disperseur (4).
  11. Procédé selon l'une quelconque des revendications précédentes,
       caractérisé en ce que
       la matière fibreuse (S3) de haute consistance est réchauffée par de la vapeur d'eau (D) injectée entre les garnitures de dispersion (5, 6).
  12. Installation destinée à la mise en oeuvre du procédé selon l'une quelconque des revendications précédentes, comportant une presse à vis sans fin (8) pour engendrer une matière fibreuse de papier (S2) de haute consistance en gros morceaux, ainsi qu'un disperseur (4) s'y raccordant,
       caractérisée en ce que
       un dispositif de répartition (9) est prévu entre la presse à vis sans fin (8) et le disperseur (4), lequel comporte au moins un cylindre rotatif (1) à battoirs sur lequel se trouve un certain nombre de battoirs (2), et en ce que le dispositif de répartition (9) comporte un certain nombre d'éléments d'impact (3), qui s'étendent de la paroi intérieure de leur carter (15) pour l'essentiel radialement vers l'intérieur de telle sorte que, à un écartement axial (a) par rapport à des battoirs (2) adjacents correspondants, ils pénètrent radialement dans la zone d'action de ceux-ci.
  13. Installation selon la revendication 12,
       caractérisée en ce que
       le cylindre (1) à battoirs est situé sensiblement à l'horizontale.
  14. Installation selon la revendication 12 ou 13,
       caractérisée en ce que
       le diamètre extérieur (D) des battoirs (2) est compris entre 200 et 1000 mm.
  15. Installation selon la revendication 12, 13 ou 14,
    caractérisée en ce que
       les éléments d'impact (3) ont la forme de baguettes.
  16. Installation selon la revendication 12, 13 ou 14,
       caractérisée en ce que
       les éléments d'impact (3) ont la forme de plaques.
  17. Installation selon la revendication 12, 13, 14, 15 ou 16,
       caractérisée en ce que
       l'écartement axial (a) entre des battoirs (2) axialement adjacents se situe dans un ordre de grandeur qui est compris entre 10 et 100 mm.
  18. Installation selon la revendication 12, 13, 14, 15, 16 ou 17,
       caractérisée en ce que
       l'écartement axial (b) entre des battoirs (2) et des éléments d'impact (3) se rencontrant se situe dans un ordre de grandeur qui est compris entre 5 et 50 mm.
  19. Installation selon la revendication 12, 13, 14, 15, 16, 17 ou 18,
       caractérisée en ce que
       la longueur (L) du cylindre (1) à battoirs correspond, avec une tolérance de ± 20 %, au diamètre extérieur de la vis de la presse dans la presse à vis sans fin (8).
EP01103044A 2000-04-13 2001-02-09 Procédé pour disperser une pulpe de fibres de papier et installation pour l'exécution du procédé Expired - Lifetime EP1147805B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10018262 2000-04-13
DE10018262A DE10018262A1 (de) 2000-04-13 2000-04-13 Verfahren zur Dispergierung eines Papierfaserstoffes sowie Anlage zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
EP1147805A1 EP1147805A1 (fr) 2001-10-24
EP1147805B1 true EP1147805B1 (fr) 2004-08-25

Family

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Family Applications (1)

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EP01103044A Expired - Lifetime EP1147805B1 (fr) 2000-04-13 2001-02-09 Procédé pour disperser une pulpe de fibres de papier et installation pour l'exécution du procédé

Country Status (7)

Country Link
US (1) US20010037866A1 (fr)
EP (1) EP1147805B1 (fr)
JP (1) JP2001348791A (fr)
AT (1) ATE274370T1 (fr)
CA (1) CA2344103A1 (fr)
DE (2) DE10018262A1 (fr)
ES (1) ES2225318T3 (fr)

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FI112875B (fi) * 2001-12-18 2004-01-30 Metso Paper Inc Hylkyjärjestelmä paperikonetta tai vastaavaa varten
FI111393B (fi) * 2001-12-18 2003-07-15 Metso Paper Inc Hylkyjärjestelmä paperikonetta tai vastaavaa varten
FI120551B (fi) * 2001-12-19 2009-11-30 Metso Paper Inc Paperikoneen tai vastaavan hylkyjärjestelmä
AT411604B (de) * 2002-03-27 2004-03-25 Andritz Ag Maschf Verfahren und vorrichtung zur dispergierung eines papierfaserstoffes
CN100347374C (zh) * 2005-08-30 2007-11-07 天津科技大学 高剪切纤维离解机
DE202006008820U1 (de) 2006-06-03 2006-08-17 Frymakoruma Ag Homogenisator-Vorrichtung mit horizotal gelagerten Zahnkränzen
AT507837B1 (de) * 2008-12-29 2010-10-15 Andritz Ag Maschf Verfahren und vorrichtung zur entwässerung und dispergierung eines faserstoffes
DE202014101719U1 (de) * 2013-04-12 2014-04-29 Valmet Technologies, Inc. Dispergator
DE102013226597A1 (de) * 2013-12-19 2015-06-25 Voith Patent Gmbh Disperger-Aufheizung
US20220062837A1 (en) * 2018-12-21 2022-03-03 Nanorial Technologies Ltd. Apparatus, methods, and systems for mixing, dispersing substances
CN110075746A (zh) * 2019-04-23 2019-08-02 安徽华文塑胶科技有限公司 一种土壤重金属稳定剂处理系统及处理方法
CN111608000A (zh) * 2020-05-26 2020-09-01 陈爱丽 一种基于纸品体积变化一次性导入碎纸的纸品回收装置
FI20225817A1 (en) * 2022-09-21 2024-03-22 Valmet Technologies Oy Dispersants
CN115556265B (zh) * 2022-10-10 2024-09-10 江苏亨睿弗劳恩新材料研发有限公司 一种短切纤维分散装置及分散方法

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DE19712653C2 (de) * 1997-03-26 2002-10-24 Voith Paper Fiber Systems Gmbh Verfahren und Vorrichtung zur Dispergierung eines Altpapierfaserstoffes

Also Published As

Publication number Publication date
ES2225318T3 (es) 2005-03-16
CA2344103A1 (fr) 2001-10-13
ATE274370T1 (de) 2004-09-15
EP1147805A1 (fr) 2001-10-24
DE50103371D1 (de) 2004-09-30
JP2001348791A (ja) 2001-12-21
US20010037866A1 (en) 2001-11-08
DE10018262A1 (de) 2001-10-18

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