WO2021104747A1 - Appareil de traitement de matériau fibreux - Google Patents

Appareil de traitement de matériau fibreux Download PDF

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Publication number
WO2021104747A1
WO2021104747A1 PCT/EP2020/079332 EP2020079332W WO2021104747A1 WO 2021104747 A1 WO2021104747 A1 WO 2021104747A1 EP 2020079332 W EP2020079332 W EP 2020079332W WO 2021104747 A1 WO2021104747 A1 WO 2021104747A1
Authority
WO
WIPO (PCT)
Prior art keywords
treatment
tools
treatment tool
gaps
base plate
Prior art date
Application number
PCT/EP2020/079332
Other languages
German (de)
English (en)
Inventor
Markus Nussbaumer
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
Priority to CN202080082732.3A priority Critical patent/CN114729507A/zh
Priority to EP20797057.5A priority patent/EP4065766A1/fr
Publication of WO2021104747A1 publication Critical patent/WO2021104747A1/fr

Links

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
    • D21D1/303—Double disc mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/12—Shape or construction of discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/14—Adjusting, applying pressure to, or controlling distance between, discs
    • 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 treating pulp with a housing in which several treatment tools with a rotationally symmetrical shape are arranged coaxially to one another, two treatment tools each delimiting a treatment gap through which the fiber flows, of which at least one treatment tool rotates around a common axis.
  • the mechanical treatment of suspended pulp material includes the grinding of paper fibers, the dispersion of impurities and fibers (in particular dirt speck size reduction, printing ink removal and sticky size reduction) and defacing, i.e. the dissolving of fiber agglomerates.
  • the suspension in refiners has a solids content of around 2-8%.
  • Devices of the above Kind are z. B. used to improve the quality of pulp obtained from cellulose, but especially from waste paper.
  • Such machines have at least one rotor and at least one stator with either disc-shaped or conical surfaces on which the fittings are attached so that gaps can be formed between them.
  • Many sets have ridges and grooves on the work surfaces, which is why they are also referred to as “knife sets”.
  • Other sets are in the form of toothed rings.
  • the treatment tools must be adapted as best as possible to the fiber material to be treated, also to prevent excessive wear on the clothing.
  • the object of the invention is to expand the possible uses of the device.
  • this device can optionally be designed with one or more, preferably two, treatment gaps.
  • the device can be adapted, for example, to parameter changes in the fibrous suspension and / or the fibrous web to be produced therefrom.
  • the two treatment tools of a treatment gap can rotate in opposite directions.
  • Implementation is particularly simple when a rotating treatment tool is attached to a rotating base plate and the base plate has fastening elements on the side opposite this rotating treatment tool for optionally releasable attachment of a further rotating treatment tool or at least one panel.
  • the fibrous material advantageously flows through the respective treatment gap radially outward.
  • the treatment tools should consist of several treatment sectors arranged next to one another in the circumferential direction or, in particular in the case of deflaking, of several radially adjacent and thus concentrically arranged circular rings.
  • the feed of the fiber suspension into the treatment gap takes place radially on the inside and is made considerably easier by the fact that the base plate has one or more axially parallel openings in the area not covered by a treatment tool, in particular radially on the inside.
  • the fiber suspension can be guided to the treatment gaps along the axis of rotation via these openings.
  • the base plate has further fastening means on at least one side for the detachable fastening of one or more further panels each covering one or more openings. If the corresponding treatment gap is not to be charged with pulp suspension, the supply can simply be blocked via these diaphragms.
  • the fastening elements for the further treatment tool and the fastening elements for the further panels should be on the same side of the base plate.
  • one or more treatment gaps are inclined perpendicular to the axis of rotation of the treatment tools and / or one or more treatment gaps, in particular grinding gaps, are inclined to the axis of rotation of the treatment tools run away.
  • the device is designed as a disperger or deflaker.
  • the treatment tools should each have several ring-shaped teeth arranged concentrically to their center, between which there are tooth gaps through which the fibrous material flows, with annular gaps between the rows of teeth which are arranged so that at least one row of teeth of a treatment tool extends into an annular space of the other, complementary, opposite treatment tool of the treatment gap.
  • the device is designed as a refiner.
  • the opposite treatment tools forming the treatment gap should have elongate grinding strips which run radially at least with one directional component and with grooves running in between.
  • Figure 1 a schematic cross section through a deflaker with two
  • FIG. 2 with only one treatment gap 7.
  • the high-consistency paper pulp is pressed radially on the inside, directly into the central area of the treatment gaps 7, 8, which are each formed by two treatment tools 1, 2, 3, 4.
  • the fiber material flows through the treatment gap 7, 8 delimited by the treatment tools 1, 2, 3, 4 radially outwards and leaves the adjoining annular space through a drain.
  • While one treatment tool 3, 4 is stationary and thus designed as a stator, the other treatment tool 1, 2 is rotatably mounted on an axis 6 in the housing 5 of the deflasterer. It is known that deflaking is brought about by the fact that teeth 15 are moved relatively close to one another at a relatively high speed and the fibrous material located between them is subjected to strong shear forces.
  • the gap between them also changes as a result, as a result of which the performance of the deflaker can be controlled in a manner known per se.
  • the treatment tools 1, 2, 3, 4 each have a rotationally symmetrical shape.
  • the treatment tools 1, 2, 3, 4 arranged coaxially to one another each have teeth 15 arranged in several annular rows concentric to their center, between which there are tooth gaps through which the fibrous material flows radially outward.
  • annular spaces which are arranged in such a way that a row of teeth of one treatment tool 1, 2, 3, 4 extends into an annular space of the other, complementary treatment tool 1, 2, 3, 4.
  • the structure of a disperser is essentially the same, only the consistency of the fiber material is higher.
  • the invention can also be used in refiners.
  • the opposing treatment tools 1, 2, 3, 4 forming the treatment gap 7, 8 have elongate grinding strips extending radially at least with one directional component with grooves extending in between.
  • the treatment tools 1, 2, 3, 4 are generally each formed by a plurality of treatment sectors which each extend over a circumferential segment of the corresponding treatment tool 1, 2, 3, 4.
  • the treatment sectors result in a continuous treatment tool 1, 2, 3, 4.
  • the treatment gap 7, 8 can run not only perpendicularly but, as in the case of cone refiners, also inclined to the axis of rotation 14.
  • the axis of rotation 14 coincides with the cone axis.
  • a rotating treatment tool 1, 2 is attached to each of the two longitudinal sides of the base plate 9. Together with an opposing, stationary treatment tool 3, 4, these form the two treatment gaps 7, 8.
  • the base plate 9 has several axially parallel openings 12 radially on the inside, in the area not covered by a treatment tool 1, 2, 3, 4.
  • the treatment device is to provide only one treatment gap 7, according to FIG. 2, a stationary 4 and the opposite, rotating 2 treatment tool can be easily detached and removed.
  • a screen 11 is attached to the base plate 9.
  • the openings 12 are covered here with diaphragms 13 on both sides of the base plate 9.
  • Screw connections or the like are used as fastening elements 10 for the detachable fastening of the treatment tools 1, 2, 3, 4 and the panels 11, 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un appareil de traitement de matériau fibreux, appareil comprenant un boîtier (5) dans lequel une pluralité d'outils de traitement (1, 2, 3, 4) de forme symétrique en rotation sont disposés coaxialement les uns par rapport aux autres, et dans chaque cas deux outils de traitement (1, 2) délimitant un espace de traitement (7, 8) à travers lequel s'écoule le matériau fibreux, au moins un desdits outils de traitement (1, 2) tournant autour d'un axe commun (6). La plage d'utilisations possibles du dispositif peut être étendue par la conception de ce dispositif selon les besoins, ayant un ou plusieurs espaces de traitement (7, 8).
PCT/EP2020/079332 2019-11-29 2020-10-19 Appareil de traitement de matériau fibreux WO2021104747A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080082732.3A CN114729507A (zh) 2019-11-29 2020-10-19 纤维材料处理装置
EP20797057.5A EP4065766A1 (fr) 2019-11-29 2020-10-19 Appareil de traitement de matériau fibreux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019132448.3A DE102019132448A1 (de) 2019-11-29 2019-11-29 Faserstoff-Behandlungsvorrichtung
DE102019132448.3 2019-11-29

Publications (1)

Publication Number Publication Date
WO2021104747A1 true WO2021104747A1 (fr) 2021-06-03

Family

ID=73014485

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/079332 WO2021104747A1 (fr) 2019-11-29 2020-10-19 Appareil de traitement de matériau fibreux

Country Status (4)

Country Link
EP (1) EP4065766A1 (fr)
CN (1) CN114729507A (fr)
DE (1) DE102019132448A1 (fr)
WO (1) WO2021104747A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131532A2 (fr) * 1983-04-18 1985-01-16 Beloit Corporation Raffineur à disques flexible et procédé pour le broyage de pâte à papier
WO1987005061A1 (fr) * 1986-02-25 1987-08-27 Beloit Corporation Raffineur a disque possedant de multiples disques rigides coulissants
WO2015150620A1 (fr) * 2014-03-31 2015-10-08 Upm-Kymmene Corporation Procédé de production de cellulose fibrillée
WO2019042758A1 (fr) * 2017-09-01 2019-03-07 Voith Patent Gmbh Système de raffinage conique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081147A (en) * 1976-05-27 1978-03-28 The Black Clawson Company Reversible disk refiner plates
DE202004009841U1 (de) * 2004-06-23 2004-09-23 Voith Paper Patent Gmbh Vorrichtung zur Faserstoffaufbereitung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131532A2 (fr) * 1983-04-18 1985-01-16 Beloit Corporation Raffineur à disques flexible et procédé pour le broyage de pâte à papier
WO1987005061A1 (fr) * 1986-02-25 1987-08-27 Beloit Corporation Raffineur a disque possedant de multiples disques rigides coulissants
WO2015150620A1 (fr) * 2014-03-31 2015-10-08 Upm-Kymmene Corporation Procédé de production de cellulose fibrillée
WO2019042758A1 (fr) * 2017-09-01 2019-03-07 Voith Patent Gmbh Système de raffinage conique

Also Published As

Publication number Publication date
DE102019132448A1 (de) 2021-06-02
EP4065766A1 (fr) 2022-10-05
CN114729507A (zh) 2022-07-08

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