WO2016165860A1 - Dispositif de désintégration - Google Patents

Dispositif de désintégration Download PDF

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Publication number
WO2016165860A1
WO2016165860A1 PCT/EP2016/053650 EP2016053650W WO2016165860A1 WO 2016165860 A1 WO2016165860 A1 WO 2016165860A1 EP 2016053650 W EP2016053650 W EP 2016053650W WO 2016165860 A1 WO2016165860 A1 WO 2016165860A1
Authority
WO
WIPO (PCT)
Prior art keywords
working elements
trough
partially
pulp
axis
Prior art date
Application number
PCT/EP2016/053650
Other languages
German (de)
English (en)
Inventor
Wolfgang Mannes
Original Assignee
Voith 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 Patent Gmbh filed Critical Voith Patent Gmbh
Publication of WO2016165860A1 publication Critical patent/WO2016165860A1/fr

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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
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
    • B23K26/0673—Dividing the beam into multiple beams, e.g. multifocusing into independently operating sub-beams, e.g. beam multiplexing to provide laser beams for several stations
    • 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
    • D21B1/32—Defibrating by other means of waste paper
    • 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
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers
    • D21B1/347—Rotor assemblies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Definitions

  • the invention relates to a device for dissolving pulp, in particular for dissolving pulp at HC substance densities, with a housing and arranged in the housing working elements, which can be brought into engagement with the pulp.
  • Dissolvers or pulpers of this type are used for processing of fiber raw materials, which are to be used in the form of a pulp suspension in a machine for producing a fibrous web, in particular a paper web.
  • virgin fibers or recovered paper fibers can be used as fiber raw materials.
  • OCC (Old Corrugated Container) applications currently use LC pulpers, i. low consistency pulpers, as well as for DIP, i. depleted waste paper pulp, and increasingly also used for OCC applications in waste paper grades with low-force fraction dissolving drums.
  • LC pulpers are characterized by low investment and energy costs. However, they are subject to relatively high wear and require ongoing process monitoring. It can lead to malfunction. With justifiable losses, starch-containing varieties can also be dissolved. In contrast, subject to my on Lieretrom Although less wear. However, their investment and energy costs are higher.
  • the invention has for its object to provide a resolving device of the type mentioned above, which combines the advantages of the aforementioned dissolution devices in itself and in particular for operation at HC consistency and thus in particular for the dissolution of DIP, ie deinked waste paper materials is suitable.
  • the object is achieved by a device having the features of claim 1. Preferred embodiments of the device according to the invention will become apparent from the dependent claims, the present description and the drawings.
  • the device according to the invention for dissolving pulp in particular for dissolving pulp at HC substance densities, comprises a housing and working elements arranged in the housing, which can be brought into engagement with the pulp.
  • the housing is designed in the form of an upwardly open, in cross-section U-shaped trough in which a about an axis parallel to the longitudinal axis of the trough rotatably mounted rotor is arranged, which is provided with blade-like, in particular a low spinning tendency having working elements.
  • Work elements with a "low spinning tendency” are understood to be oriented and arranged so as to minimize the risk of spinning of the contaminants (wires, cords, etc.).
  • the dissolving device according to the invention combines the advantages of the aforementioned dissolving devices in itself. It is continuously operable at HC substance densities and thus also suitable for the dissolution of deinkten waste paper materials. It is characterized by low wear and high operational reliability and can dissolve also kraft-containing waste paper grades with appropriate dissolving density.
  • the dissolving device according to the invention can also be charged with complete fabric bales. The baling wires must be cut open and not removed. The energy requirement is comparable to that of LC systems, i. low-consistency systems.
  • the leading edge of the rotating blade-like working elements is opposite to the respective tangent tangent to the circumference inclined at an angle which is less than 45 ° and preferably less than 30 °.
  • the supply of pulp and dissolving water can be done in the region of one end of the trough and the ejection of the dissolved pulp in the region of the other end of the trough.
  • the trough In its lower region, the trough preferably has a part-circular, in particular semicircular, inner wall in its cross-section.
  • the rotor is advantageously rotatably mounted about an axis lying in the region of the central axis of the part-circular inner wall of the trough axis.
  • the rotor can also be rotatably mounted about an axis offset from the central longitudinal axis of the part-circular inner wall of the trough, wherein the distance between the axis and the inner wall of the trough preferably increases in the direction of rotation. By increasing in the direction of rotation distance jamming can be prevented.
  • the working elements may be at least partially superimposed in the axial direction, i. It can be provided at least one axial position and several working elements.
  • the working elements can be arranged at least partially also at an axial distance from each other.
  • the dissolution device may comprise an entry zone in which the pulp to be treated can be introduced into the trough and a dissolution zone which adjoins the entry zone axially.
  • the diameter of the rotor shaft in the entry zone is preferably greater than in the dissolution zone, whereby the penetration of the pulp is facilitated in the trough.
  • the working elements may be at least partially in particular disk-shaped and / or at least partially executed in particular wing-shaped.
  • the working elements are at least partially disc-shaped and designed to increase the rigidity canted or bent.
  • the angle between the axis and the surface normals of the working elements should be less than 30 °, preferably less than 15 °.
  • the smallest radial distance between the working elements and the inner wall of the trough about 5 cm, in particular about 20 cm and preferably about 50 cm.
  • the rotor is preferably drivable at a maximum speed which is less than 10 m / s and preferably less than 5 m / s. With a correspondingly lower peripheral speed results in a correspondingly lower wear and a correspondingly higher reliability.
  • the pulp to be treated is preferably fed to the trough from above and / or laterally. In the case of a lateral feed, this should take place in the region of upwardly moving working elements.
  • the dissolved pulp is preferably ejected axially and / or laterally. It is particularly advantageous if the dissolved pulp in the area up moving working elements axially and / or laterally auswerfbar. The ejection of the dissolved pulp is thus supported by the moving work elements. It is particularly advantageous if for ejecting the dissolved pulp
  • the sorting device can be connected via the rotor or via a common shaft, in particular with at least one sorting element of a sorting unit for sorting the dissolved pulp.
  • FIG. 1 shows a schematic perspective view of an exemplary embodiment of a device 10 according to the invention for dissolving pulp, in particular for dissolving pulp at HC substance densities
  • FIG. 2 shows a cross section of an embodiment with offset of the axis of rotation 16.
  • the opening device 10 comprises a housing 12 and working elements 14 arranged in the housing 12, which can be brought into engagement with the fibrous material.
  • the housing 12 is designed in the form of an upwardly open, in cross-section U-shaped horizontally extending trough, in which a about a longitudinal axis 28 of the trough 12 parallel axis 16 rotatably mounted rotor 18 is arranged with the blade-like, in particular a small Verspinnung trend having working elements 14 is provided.
  • work elements with a "low spinning tendency" are to be understood as being oriented and arranged in such a way that the risk of spinning of the contaminants (wires, cords, etc.) is reduced to a minimum.
  • the leading edge 20 of the rotating blade-like working elements 14 may be inclined, in particular, at an angle which is less than 45 °, and preferably less than 30 °, with respect to the respective tangent tangent.
  • the trough 12 In its lower region, the trough 12 has a cross-sectionally partially circular, in particular semicircular inner wall.
  • the rotor 18 is preferably rotatably mounted about an axis 16 located in the region of the central longitudinal axis 28 of the part-circular inner wall of the trough 12.
  • the working elements 14, viewed in the axial direction, can at least partially overlap one another. At a respective axial position so several working elements 14 may be provided. However, it is also conceivable, for example, such an embodiment, in which the working elements 14 are at least partially disposed at an axial distance from each other. The working elements 14 may be at least partially aligned in particular so that they at least partially generate an axial conveying component. However, it is also conceivable, for example, such an embodiment in which the working elements 14 are at least partially ausgrise so that they produce at least partially no axial conveying component.
  • the opening device 10 may have an entry zone 22, in which the pulp to be treated can be introduced into the trough 12, and one axially to the entry zone 22 subsequent dissolution zone 24 include.
  • the diameter of the rotor shaft 26 may be greater in the entry zone 22 than in the dissolution zone 24.
  • the working elements 14 may be at least partially in particular disc-shaped and / or at least partially executed in particular erieliförmig. It is also conceivable, for example, such an embodiment, in which the working elements 14 are at least partially disc-shaped and canted to increase the rigidity or bent.
  • the smallest radial distance between the working elements 14 and the inner wall of the trough is for example about 5 cm, in particular about 20 cm and preferably about 50 cm.
  • the rotor 18 is drivable at a maximum speed, which in particular may be less than 10 m / s, and preferably less than 5 m / s.
  • the pulp to be treated can be fed to the trough 12, in particular from above and / or laterally.
  • the dissolved fiber is in particular axially and / or laterally auswerfbar.
  • the dissolved pulp can be ejected laterally, in particular in the region of upwardly moving working elements 14, so that the ejection is assisted by the moving working elements 14.
  • a height-adjustable weir edge can be provided for ejecting the dissolved pulp.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Plasma & Fusion (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un dispositif de désintégration de matière fibreuse, notamment pour la désintégration d'une matière fibreuse selon les densités spécifiques HC, comprenant un boîtier et des éléments de travail disposés dans celui-ci, lesquels éléments peuvent être mis en contact avec la matière fibreuse. Le boîtier est réalisé sous la forme d'un bac ouvert vers le haut de section transversale en U, dans lequel est disposé un rotor monté rotatif sur un axe parallèle à l'axe longitudinale du bac, ce rotor comportant des éléments de travail de type pales présentant notamment une faible tendance au filage.
PCT/EP2016/053650 2015-04-13 2016-02-22 Dispositif de désintégration WO2016165860A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015206499.9 2015-04-13
DE102015206499.9A DE102015206499A1 (de) 2015-04-13 2015-04-13 Auflösevorrichtung

Publications (1)

Publication Number Publication Date
WO2016165860A1 true WO2016165860A1 (fr) 2016-10-20

Family

ID=55446749

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/053650 WO2016165860A1 (fr) 2015-04-13 2016-02-22 Dispositif de désintégration

Country Status (2)

Country Link
DE (2) DE102015206499A1 (fr)
WO (1) WO2016165860A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021119250B3 (de) 2021-07-26 2022-07-28 Voith Patent Gmbh Vorrichtung zum Auflösen von Faserstoff
WO2024153393A1 (fr) 2023-01-19 2024-07-25 Voith Patent Gmbh Dispositif et procédé de vidage d'un triturateur horizontal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024079177A1 (fr) 2022-10-12 2024-04-18 Voith Patent Gmbh Dispositif de traitement de matières fibreuses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727439A (en) * 1953-05-05 1955-12-20 Robert Gair Co Inc Apparatus for treating pulp
US3417933A (en) * 1965-07-12 1968-12-24 Black Clawson Co Pulper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT211647B (de) * 1958-02-07 1960-10-25 Ferdinand Dipl Ing Dr Wultsch Stoffauflöser
DE3238742A1 (de) * 1982-10-20 1984-04-26 Escher Wyss Gmbh, 7980 Ravensburg Verfahren zum sortieren von faserstoff, insbesondere fuer die herstellung von papier sowie sortiervorrichtung zur ausfuehrung des verfahrens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727439A (en) * 1953-05-05 1955-12-20 Robert Gair Co Inc Apparatus for treating pulp
US3417933A (en) * 1965-07-12 1968-12-24 Black Clawson Co Pulper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021119250B3 (de) 2021-07-26 2022-07-28 Voith Patent Gmbh Vorrichtung zum Auflösen von Faserstoff
WO2023006363A1 (fr) 2021-07-26 2023-02-02 Voith Patent Gmbh Dispositif pour défibrer un matériau fibreux
WO2024153393A1 (fr) 2023-01-19 2024-07-25 Voith Patent Gmbh Dispositif et procédé de vidage d'un triturateur horizontal
DE102023101252A1 (de) 2023-01-19 2024-07-25 Voith Patent Gmbh Vorrichtung und Verfahren zur Entleerung eines liegenden Stofflösers

Also Published As

Publication number Publication date
DE202015009470U1 (de) 2017-10-23
DE102015206499A1 (de) 2016-10-13

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