EP0275849B1 - Vorrichtung zur Dispersion von Papier, Karton und Papierbrei - Google Patents

Vorrichtung zur Dispersion von Papier, Karton und Papierbrei Download PDF

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Publication number
EP0275849B1
EP0275849B1 EP87850356A EP87850356A EP0275849B1 EP 0275849 B1 EP0275849 B1 EP 0275849B1 EP 87850356 A EP87850356 A EP 87850356A EP 87850356 A EP87850356 A EP 87850356A EP 0275849 B1 EP0275849 B1 EP 0275849B1
Authority
EP
European Patent Office
Prior art keywords
rotors
basin
pulp
dispersing
wall
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
EP87850356A
Other languages
English (en)
French (fr)
Other versions
EP0275849A1 (de
Inventor
Jyrki Paavola
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.)
Sunds Defibrator Jylha OY
Original Assignee
Sunds Defibrator Jylha OY
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 Sunds Defibrator Jylha OY filed Critical Sunds Defibrator Jylha OY
Priority to AT87850356T priority Critical patent/ATE74388T1/de
Publication of EP0275849A1 publication Critical patent/EP0275849A1/de
Application granted granted Critical
Publication of EP0275849B1 publication Critical patent/EP0275849B1/de
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
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers
    • D21B1/347—Rotor assemblies
    • 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

Definitions

  • the present invention concerns a means for dispersing paper, cardboard and pulp, said means comprising a basin open on top into which the raw material to be dispersed is fed, e.g. from a paper machine located thereabove, and wherefrom it is removed in dispersed state with the aid of a pump after being dispersed, and one or several dispersing units, placed on the wall of the basin, preferably a rotating rotor/rotors and wherein one or several devices generating pulp flow in the rotors are mounted on the wall of the basin opposite to the rotors.
  • This kind of means (a pulper) is primarily used underneath big paper machines for dispersing paper and cardboard.
  • Fluted guide members are provided above the means which guide the paper and cardboard to be dispersed, coming from the paper machine to a basin open on top.
  • dispersing units On one wall of the basin are placed dispersing units, these being rotors.
  • the rotors are usually placed side by side at the same height from the basin bottom, and their shafts are as a rule parallel. Outside the basin, between the rotor shafts, is usually placed a removal pump for the dispersed pulp.
  • US-A-2 796 006 describes a vertical pulper for dispersion and disintegration of paper and paperboard materials, comprising a tank for material to be treated and having mounted on the cover of the tank a helical vane, intended to force the material against a rotor mounted on the bottom of the tank.
  • the vane is a long massive screw extending from the tank cover to near the rotor at the bottom of the tank, which is required for the thick pulp treated in vertical pulpers.
  • the big massive screw occupies quite a lot of space in the tank and its rotation at relatively high speed creates big mass forces and requires much energy.
  • the object of the present invention is to improve the circulation of pulp, so that the entrance of pulp into the effective range of the rotors is enhanced.
  • the aim is achieved with the means of the invention which is characterized in that the means providing pulp flow is a pump producing liquid flow through a pipe mounted in said wall of the basin.
  • An advantagoeus embodiment of the invention is characterized in that the pipes provided on the wall of the basin opposite to the rotors are located on an imagined continuation of the rotor shafts.
  • Fig. 1 a means for dispersing paper, cardboard and pulp.
  • the means is most advantageously placed below a large paper machine, whereby the feeding of material to be dispersed into the basin 1 is through the open top part of the basin.
  • oblique guides 2 visible only in Fig. 1.
  • Dispersing paper, cardboard and pulp in the basin 1 takes place by means of dispersing units 3, which most advantageously are rotating rotors.
  • the drive motors 4 of the rotors 3 are placed outside the basin.
  • Fig. 2 is presented a dispersing means likewise of prior art, and the mutual location of the rotors in relation to each other is shown therein.
  • the pulp circulation inside the basin 1 is not efficient enough.
  • Fig. 3 is presented the means of an embodiment of the invention, considerably simplified, for dispersing paper, cardboard and pulp, in which the pulp flow is provided by a flow-technological means.
  • liquid is pumped into the basin 1 through pipes 9 disposed in the wall 5. In this way is provided again the pulp flow indicated by the arrows.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Cartons (AREA)
  • Fats And Perfumes (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (2)

  1. Einrichtung zum Auflösen von Papier, Pappe und Pulp, mit einem nach oben offenen Becken (1), in das das aufzulösende Rohmaterial z.B. von einer darüber angeordneten Papiermaschine eingefüllt und aus dem es im aufgelösten Zustand mittels einer Pumpe abgezogen wird, und mit einer oder mehreren, an der Wand (6) des Beckens angeordneten Auflöseeinheit (3), vorzugsweise ein Rotor bzw. Rotoren, wobei eine oder mehrere Vorrichtungen zur Erzeugung einer Pulpströmung in den Rotoren an der den Rotoren gegenüberliegenden Wand (5) des Beckens angebracht sind, dadurch gekennzeichnet, daß die Vorrichtung zur Erzeugung der Pulpströmung eine Pumpe ist, die eine Flüssigkeitsströmung durch ein Rohr (9) hindurch erzeugt, das in der Wand (5) des Beckens angebracht ist.
  2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das in der Wand (5) des Beckens (1) gegenüber den Rotoren (3) angebrachte Rohr (9) auf einer gedachten Verlängerung der jeweiligen Rotorwelle liegt.
EP87850356A 1986-12-19 1987-11-19 Vorrichtung zur Dispersion von Papier, Karton und Papierbrei Expired - Lifetime EP0275849B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87850356T ATE74388T1 (de) 1986-12-19 1987-11-19 Vorrichtung zur dispersion von papier, karton und papierbrei.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI865207 1986-12-19
FI865207A FI77903C (fi) 1986-12-19 1986-12-19 Anordning foer destruktion av papper, kartong och massa.

Publications (2)

Publication Number Publication Date
EP0275849A1 EP0275849A1 (de) 1988-07-27
EP0275849B1 true EP0275849B1 (de) 1992-04-01

Family

ID=8523679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87850356A Expired - Lifetime EP0275849B1 (de) 1986-12-19 1987-11-19 Vorrichtung zur Dispersion von Papier, Karton und Papierbrei

Country Status (5)

Country Link
EP (1) EP0275849B1 (de)
AT (1) ATE74388T1 (de)
DE (1) DE3778001D1 (de)
FI (1) FI77903C (de)
NO (1) NO163539C (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH284805A (de) * 1949-10-31 1952-08-15 Gmbh J M Voith Stofflöser.
US2796006A (en) * 1955-03-24 1957-06-18 Merle P Chaplin Fibre disintegrator and separator
US3417933A (en) * 1965-07-12 1968-12-24 Black Clawson Co Pulper
CS212562B1 (en) * 1979-09-11 1982-03-26 Jiri Kratky Reserve and homogenization container for the caoline suspensions
FR2544756B1 (fr) * 1983-04-22 1985-08-30 Lamort E & M Perfectionnements aux turbines de defibrage

Also Published As

Publication number Publication date
FI77903B (fi) 1989-01-31
NO875309L (no) 1988-06-20
FI865207A0 (fi) 1986-12-19
FI865207A (fi) 1988-06-20
NO875309D0 (no) 1987-12-18
NO163539C (no) 1990-06-13
EP0275849A1 (de) 1988-07-27
NO163539B (no) 1990-03-05
ATE74388T1 (de) 1992-04-15
FI77903C (fi) 1989-05-10
DE3778001D1 (de) 1992-05-07

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