EP1147806B1 - Appareil pour disperser une pâte à papier de haute consistence et garnitures pour cet appareil - Google Patents

Appareil pour disperser une pâte à papier de haute consistence et garnitures pour cet appareil Download PDF

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Publication number
EP1147806B1
EP1147806B1 EP01104248A EP01104248A EP1147806B1 EP 1147806 B1 EP1147806 B1 EP 1147806B1 EP 01104248 A EP01104248 A EP 01104248A EP 01104248 A EP01104248 A EP 01104248A EP 1147806 B1 EP1147806 B1 EP 1147806B1
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EP
European Patent Office
Prior art keywords
teeth
fittings
rows
minimum axial
tooth
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
EP01104248A
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German (de)
English (en)
Other versions
EP1147806A1 (fr
Inventor
Volker Niggl
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 EP1147806A1 publication Critical patent/EP1147806A1/fr
Application granted granted Critical
Publication of EP1147806B1 publication Critical patent/EP1147806B1/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
    • D21D1/006—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
    • B01F23/56—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
    • 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
    • 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
    • B01F27/27—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 device for dispersion according to the preamble of Claim 1.
  • a similar device for dispersing is for example from DE-PS 30 47 013 known. It serves to intensively mechanically and thermally recycle waste paper process, whereby the contaminants contained therein detached from the fibers, crushed and / or brought below the visibility limit.
  • the machine is used in such machines Fibrous material is not processed in a pumpable suspension, but in the form of a doughy or crumbly high consistency substance, preferably with a dry content between 20 and 35%. In this way, considerably higher shear forces can be applied transfer the pulp, whereby the stated goals can be achieved without doing so there is a significant change in fiber length.
  • the effect mechanical treatment by heat e.g. by hiring one Fiber temperature of 90 ° Celsius or above.
  • the distance between the sets can be changed, namely by moving the sets axially against each other.
  • This adjustment process allows the effect of the device to be varied in such a way that it meets the requirements. It is obvious that in the case of tightening Intervals the transmitted mechanical power increases.
  • the possibility of Axial adjustment is particularly advantageous if the Set has a certain wear, which leads to an increase in Distances leads.
  • the width of the distances influences the power consumption and also the Volume flow of the high consistency substance through the disperser.
  • the well-known re-enactment can remedy the situation, but it is still not possible with advanced Wear the dispersing machine as optimally as with new sets. As a result, the trimmings often need to be replaced, though not yet are worn out.
  • a disc homogenizer described in SU 1 238 782 A is also included equipped with a large number of axially interlocking teeth, but can only pasty, well sliding materials and not highly consistent paper fiber to process.
  • the invention is based on the object, the devices for dispersing high consistency paper pulp to improve so that a longer life of the Trimmings until replacement is achieved without undue deterioration of the dispersing effect has to be accepted.
  • Fig. 1 shows part of a dispersing device with two relative to each other in Circumferential direction movable complementary sets 1, 2, so together in Intervention that they can work together. They are arranged in relation to each other that everywhere there is a minimal distance between relatively moving surfaces is observed; this can advantageously be larger than 1 mm.
  • the chosen one Representation in the form of a section in side view shows that radial the teeth 3, 4, 3 ', 4' belonging to the different sets from the inside out alternate up to the outer teeth 3 ", 4".
  • the tooth feet are too far predominantly in each case on a level E1 of a set 1 or E2 of second set 2. This allows the material flow in the radially outer part of the Develop sets particularly well and do not tend to get caught and / or Caking.
  • Deviations from this flat arrangement can, however Immediate central inlet area may be useful (rows of teeth with teeth 3 or 4).
  • the teeth row of a set extends into the space between complementary set, for the intended operation of the device Clearances between complementary sets of teeth are maintained have to.
  • the set 2 shown on the left belongs to the stator 6 and the one shown on the right Set 1 to the rotor 5. This is held by a shaft 10 and in rotation added.
  • the highly consistent paper pulp passes through the feed pipe 9 with the help a screw conveyor 12 centrally in the disperser.
  • Such a substance is relatively tough, different from e.g. a pumpable paper fiber suspension, as in Entstippem or Refiners is processed. It is first captured by the spinner cross 11 and then promoted in the trimmings.
  • the radially innermost row of teeth belongs to the rotor assembly and the radially outermost to the stator set.
  • the axis of rotation of the rotor 5 lies here horizontal, and the radial transport direction of the highly consistent paper pulp lies in vertical planes.
  • the sets are housed in a housing 13.
  • the set 2 belonging to the stator 6 can be moved in with the aid of a displacement device 8 Axial direction can be adjusted by a few millimeters. As already stated, can thereby the distance between the complementary sets 1 and 2 den Can be set accordingly.
  • the sets 1 and 2 designed so that they have larger axial distances radially inside than radially Outside. You can see here that e.g. on the inner tooth 3 between the tooth tip and axially opposite a clothing surface there is a distance a that is significantly larger than the distance c, which is on the radially last tooth 3 '' 'of the clothing 1 opposite set 2 forms.
  • the axial distances b are also on the tooth flanks and d, which also change due to the adjustment process if they - as drawn here - are oblique to the axial direction. Therefore here are the Axial distances b radially inside larger than the axial distances d radially outside.
  • axial distances on the tooth flanks do not always have to meet these criteria be designed. As a result of the slope there is already one on the flanks There is a larger adjustment path up to the contact of the counter surface than on the Tooth tips.
  • Fig. 2 shows in supervision a Dispergergarnitursatz, ie a rotor and one Stator fitting.
  • the annular spaces 14 can be seen.
  • the teeth 3, 3 ', 3 ", 4, 4 ', 4" (drawn cut) are arranged in annular rows and extend into the corresponding spaces 14 of the counter set. Of the Many of the teeth are shown only a few. Remain between adjacent teeth Tooth gaps 7 free for the flow of the fibrous material.
  • the shape of the teeth depends according to the intended use of the set.
  • the cross section 21 is the Section is formed in the radial plane, a square, in particular a rectangle.
  • the Cross sections 21 can be slightly rounded at the corners, e.g. for trimmings whose Tooth gaps 7 are already formed during casting. Teeth with such cross sections are generally ideal for dispersing highly consistent fiber.
  • the set of fittings shown in FIG. 3 also consists of two fittings 1 and 2, although are not engaged here, but are aligned with each other. That you can by Movement on the axially directed allocation lines 21 in engagement in the disperger to be brought.
  • These sets show a concrete practical example of Realization of the invention.
  • the height H2 of the inner tooth 3 of the set 1 same as that of the three outer teeth 3 ', 3 ". The height is in each case above the measured back surface 20 of the set.
  • the radially innermost tooth 3 of the set 1 as high as e.g. the teeth of the three outer ones Rows of teeth; nevertheless, the task can be solved because the base plate of the Counterpart 2 is thinner at this point.
  • the set 2 belonging to the stator has two radially inner rows of teeth with a lower height H3 than the four further external rows of teeth, which have the smaller height H4.
  • H3 the inventive Design of the dispersing device clarifies.
  • disperger sets so on top of each other to coordinate that they set the required different distances as a set of fittings exhibit.
  • FIG. 5 two interlocking sets are drawn in somewhat more detail, without but to reveal all constructive features.
  • the radially inner one is shown Area 17, a middle area 18 and the radially outer area 19.
  • the middle 17, that is between the teeth 3 and 4 of the inner Rows of teeth and the teeth 3 "or 4" of the outermost rows of teeth can be "Intermediate solutions” can be selected when choosing the distances e or f. With that Values meant between those for the distances a, b, c and d already mentioned lie.
  • the specifically determined wear behavior can be taken into account here.
  • a centering collar 16 is used for exact centering of the clothing 1 belonging to the rotor provided, but not on the outside diameter of this set, so that there forms a radial projection.
  • Such axial projections can be made of the same material as the set, e.g. without great additional effort to be cast on.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Crushing And Grinding (AREA)

Claims (17)

  1. Appareil pour disperser une pâte à papier de haute consistance, renfermant au moins deux garnitures (1, 2)
    1.1 qui sont respectivement munies d'une forme à symétrie de révolution, et sont agencées avec décalage mutuel dans le sens axial,
    1.2 et comportent des dents (3, 3', 3'', 4, 4', 4'') qui sont disposées en des rangées annulaires concentriques par rapport à leur milieu, dont la section transversale (21) située dans un plan radial présente une forme rectangulaire,
    1.3 et entre lesquelles se trouvent des entredents (7) formant des sections transversales libres pouvant être traversées par la pâte fibreuse devant être traitée, les bases des dents (3', 3'', 4', 4'') radialement extérieures d'une garniture (1, 2) étant majoritairement respectivement situées dans un plan (E1, E2),
    1.4 lesdites garnitures présentant, entre les rangées de dents, des espaces interstitiels annulaires (14)
    1.5 occupant, les uns par rapport aux autres, des positions telles qu'au moins une rangée de dents d'une garniture (1, 2) pénètre dans un espace interstitiel annulaire (14) de l'autre garniture (2, 1) complémentaire,
    1.6 au moins une garniture (1) étant mobile vis-à-vis de l'autre dans la direction périphérique,
    1.7 lesdites garnitures (1, 2) étant mobiles l'une par rapport à l'autre dans le sens axial, à des fins de réglage,
       caractérisé en ce que
       les garnitures (1, 2) sont configurées de façon telle qu'au moins une partie des espacements axiaux minimaux (a, b) entre les garnitures (1, 2) soit considérable dans la région radialement intérieure desdites garnitures (1, 2), en excédant notamment, d'au moins 2 mm, les espacements axiaux minimaux (c, d) dans la région radialement extérieure.
  2. Appareil selon la revendication 1,
       caractérisé en ce que
       les bases d'au moins 80 % des dents (3', 3'', 4', 4'') radialement exterieures d'une garniture (1, 2) sont situées dans un plan respectif (E1, E2).
  3. Appareil selon la revendication 1 ou 2,
       caractérisé en ce que
       une garniture (2) fait partie d'un stator fixe (6), et la garniture complémentaire (1) fait partie d'un rotor (5) pouvant être entrainé.
  4. Appareil selon la revendication 1, 2 ou 3,
       caractérisé en ce que
       les espacements axiaux minimaux (a) sur les crêtes des dents sont considérablement plus grands, dans la région radialement intérieure des garnitures (1, 2), que les espacements axiaux minimaux (c) sur les crêtes des dents dans la région radialement extérieure.
  5. Appareil selon la revendication 2, 3 ou 4,
       caractérisé en ce que
       dans au moins deux, au maximum cinq parmi les rangées de dents radialement intérieures de la garniture (1) faisant, partie du roter (5), les espacements axiaux minimaux (a), sur les crêtes des dents, sont considérablement plus grands que les espacements axiaux minimaux (b) dans les rangées de dents restantes de cette garniture (1).
  6. Appareil selon la revendication 4 ou 5,
       caractérisé en ce que
       les espacements axiaux minimaux, sur les flancs (d, f) des dents, sont sensiblement identiques dans différentes rangées de dents dans la mesure où les bases des dents (3', 3'', 4', 4'') se trouvent dans un plan (E1, E2).
  7. Appareil selon l'une des revendications précédentes,
       caractérisé en ce que
       les espacements axiaux minimaux (b) sur les flancs des dents sont considérablement plus grands, dans la région, radialement intérieure des garnitures (1, 2), que les espacements axiaux minimaux (d) sur les flancs des dents dans la région radialement extérieure.
  8. Appareil selon la revendication 3,
       caractérisé en ce que
       dans au moins deux, au maximum cinq parmi les rangées de dents radialement intérieures de la garniture (1) faisant partie du rotor (5), les espacements axiaux minimaux (b), sur les flancs des dents, sent considérablement plus grands que les espacements axiaux minimaux (d, f) dans les rangées de dents restantes de cette garniture (1).
  9. Appareil selon la revendication 3,
       caractérisé en ce que
       au moins deux, au maximum quatre parmi les rangées de dents radialement intérieures de la garniture (2) faisant partie du stator (6), présentent une plus faible hauteur de dents, mesurée au-dessus de la surface de contact (20) de la garniture (2), que les rangées de dents restantes de cette garniture (2).
  10. Appareil selon la revendication 3,
       caractérisé en ce que
       au moins deux, au maximum quatre parmi les rangées de dents radialement intérieures de la garniture (1) faisant partie du rotor (5), présentent une plus faible hauteur de dents, mesurée au-dessus de la surface de contact (20) de la garniture (1), que les rangées de dents restantes du rotor.
  11. Appareil selon l'une des revendications précédentes,
       caractérisé en ce que
       la différence est d'au moins 2 mm entre les espacements axiaux minimaux (a, b, c, d) précités.
  12. Appareil selon la revendication 11,
       caractérisé en ce que
       la différence est d'au moins 5 mm entre les espacements axiaux minimaux (a, b, c, d) précités.
  13. Appareil selon l'une des revendications précédentes,
       caractérisé en ce que
       la différence, entre les espacements axiaux minimaux (a, b, c, d) précités, représente au moins 10 % de la hauteur axiale des dents.
  14. Appareil selon la revendication 13,
       caractérisé en ce que
       la section transversale (21) des dents (3, 3', 3'', 4, 4', 4''), située dans un plan radial, présente une forme rectangulaire.
  15. Appareil selon la revendication 13 ou 14,
       caractérisé en ce que
       les sections transversales (21) sont arrondies sur les bords.
  16. Appareil selon l'une des revendications précédentes,
       caractérisé en ce que
       l'espacement minimal, entre les dents (3, 3', 3'', 4, 4', 4'') des garnitures mobiles l'une par rapport à l'autre, mesure au moins 1 mm.
  17. Jeu de garnitures de dispersion conçu pour être utilisé dans un appareil de dispersion conforme à l'une des revendications précédentes, composé d'au moins deux garnitures (1, 2) se présentant, plus précisément, comme une garniture de rotor et une garniture de stator,
       caractérisé en ce que
       lorsqu'elles sont amenées à la position relative d'utilisation conforme à sa destination, les garnitures (1, 2) présentent sur les crêtes des dents dans la région radialement intérieure, vis-à-vis de la garniture opposée, des espacements axiaux (a) excédant d'au moins 2 mm les espacements axiaux (b) sur les crêtes des dents dans la région radialement extérieure desdites garnitures (1, 2).
EP01104248A 2000-04-11 2001-02-22 Appareil pour disperser une pâte à papier de haute consistence et garnitures pour cet appareil Expired - Lifetime EP1147806B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10017899 2000-04-11
DE10017899A DE10017899A1 (de) 2000-04-11 2000-04-11 Vorrichtung zur Dispergierung von hochkonsistentem Papierfaserstoff sowie Garnituren für diese Vorrichtung

Publications (2)

Publication Number Publication Date
EP1147806A1 EP1147806A1 (fr) 2001-10-24
EP1147806B1 true EP1147806B1 (fr) 2004-07-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01104248A Expired - Lifetime EP1147806B1 (fr) 2000-04-11 2001-02-22 Appareil pour disperser une pâte à papier de haute consistence et garnitures pour cet appareil

Country Status (3)

Country Link
EP (1) EP1147806B1 (fr)
AT (1) ATE271915T1 (fr)
DE (2) DE10017899A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT502541B1 (de) * 2005-08-04 2008-01-15 Andritz Ag Maschf Platte oder plattensegment sowie vorrichtung mit derartigen platten oder plattensegmenten
US7478773B2 (en) * 2006-01-09 2009-01-20 Andritz Inc. Tooth refiner plates having V-shaped teeth and refining method
DE102008058636A1 (de) * 2008-11-22 2010-05-27 Voith Patent Gmbh Behandlung einer Fasersuspension, insbesondere zum Auflösen von Stippen sowie Vorrichtung zur Durchführung des Verfahrens
DE102019101808A1 (de) * 2019-01-25 2020-07-30 Voith Patent Gmbh Steuerung der Faserstoffbehandlung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1167033A (fr) * 1955-01-31 1958-11-19 S I S Soc D Investissements Co Procédé de traitement de matière fibreuse
FR1194715A (fr) * 1958-04-15 1959-11-12 Disperseur homogénéiseur de produits en phase fluide ou visqueuse
DE2139497C3 (de) * 1971-08-06 1975-02-13 Franz Morat Gmbh, Kaiseraugst (Schweiz) Emulgier- und Dispergiervorrichtung
SE435942B (sv) * 1978-08-07 1984-10-29 Berggren Torsten L Sett och malmaskin for behandling av fiberuppslamningar, sasom pappersmassa, samt styckeformigt malgods, sasom treflis och span
AT375417B (de) * 1980-11-25 1984-08-10 Escher Wyss Gmbh Dispergiervorrichtung fuer die aufbereitung von altpapierstoff
SU1238782A1 (ru) * 1982-12-08 1986-06-23 Проектно-Конструкторское Бюро Главного Управления Локомотивного Хозяйства Мпс Ссср Дисковый гомогенизатор
DE19523704C2 (de) * 1995-06-29 2000-08-10 Voith Sulzer Stoffaufbereitung Vorrichtung zur mechanischen Behandlung von hochkonsistentem Faserstoff

Also Published As

Publication number Publication date
DE50102956D1 (de) 2004-09-02
EP1147806A1 (fr) 2001-10-24
DE10017899A1 (de) 2001-10-18
ATE271915T1 (de) 2004-08-15

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