NO773112L - DEVICE FOR REFINING FIBER MATERIAL - Google Patents

DEVICE FOR REFINING FIBER MATERIAL

Info

Publication number
NO773112L
NO773112L NO773112A NO773112A NO773112L NO 773112 L NO773112 L NO 773112L NO 773112 A NO773112 A NO 773112A NO 773112 A NO773112 A NO 773112A NO 773112 L NO773112 L NO 773112L
Authority
NO
Norway
Prior art keywords
rotor
openings
grinding
discs
fiber material
Prior art date
Application number
NO773112A
Other languages
Norwegian (no)
Inventor
Olof Birger Nystroem
Original Assignee
Sunds Ab
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 Ab filed Critical Sunds Ab
Publication of NO773112L publication Critical patent/NO773112L/en

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20Methods of refining
    • D21D1/30Disc mills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • B01F23/56Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80Mixing plants; Combinations of mixers
    • B01F33/83Mixing plants specially adapted for mixing in combination with disintegrating operations
    • B01F33/831Devices with consecutive working receptacles, e.g. with two intermeshing tools in one of the receptacles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80Mixing plants; Combinations of mixers
    • B01F33/836Mixing plants; Combinations of mixers combining mixing with other treatments
    • B01F33/8361Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
    • B01F33/83612Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by crushing or breaking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/47Mixing of ingredients for making paper pulp, e.g. wood fibres or wood pulp
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50Mixing liquids with solids
    • B01F23/57Mixing high-viscosity liquids with solids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271Mixers 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

Foreliggende oppfinnelse angår dobbeltraffinører for raffinering av fibermateria le. Slike raffinerer omfatter to motroterende maleskiver hvor materialet raffineres under passasjen gjennom spalten mellom skivene. Fibermaterialet innføres i form av flis gjennom åpninger nær sentrum av den ene maleskiven. The present invention relates to double refiners for refining fiber material. Such refiners comprise two counter-rotating grinding discs where the material is refined during the passage through the gap between the discs. The fiber material is introduced in the form of chips through openings near the center of one grinding disc.

Under raffineringen utvikles store mengder damp som i en viss utstrekning passerer ut gjennom malespalten sammen med det raffinerte materiale, men som for en stor del også strømmer bakover mot innmatingen av flisen. Denne strøm av damp kan forårsake forstyrrelser i flismat.ingen, som blir ujevn, hvilken igjen inne-bærer at også raffineringsresultatet blir ujevnt. During the refining, large quantities of steam are developed which to a certain extent pass out through the grinding gap together with the refined material, but which for a large part also flows backwards towards the infeed of the chip. This flow of steam can cause disturbances in the chip feed, which becomes uneven, which in turn means that the refining result also becomes uneven.

Vanligvis foregår innmatingen ved hjelp av en skrue eller liknende, som roteres med jevn hastighet og derunder mater materialet mot åpningene i den ene maleskiven.Innmatingshastig-heten blir da lav, normalt ca. 2 m/s, og hvis innmatingskanalens tverrsnitt dessuten er litet, kan strømmen av damp forstyrre flis-innmatingen. Usually the feeding takes place with the help of a screw or similar, which is rotated at a constant speed and underneath feeds the material towards the openings in one of the grinding discs. The feeding speed is then low, normally approx. 2 m/s, and if the cross-section of the feed channel is also small, the flow of steam can disturb the chip feed.

Foreliggende oppfinnelse løser dette problem ved en spesiell anordning som er bestemt til å gi flisen en høy hastighet ved innmatingen i åpningene i den ene maleskiven. Den høye hastighet med hvilken materialet slynges mot åpningene i maleski-'ven gjør at innmatingen ikke forstyrres av strømmen av damp, og The present invention solves this problem by means of a special device which is intended to give the tile a high speed when it is fed into the openings in one of the grinding discs. The high speed with which the material is flung towards the openings in the grinding disc means that the feed is not disturbed by the flow of steam, and

at materialstrømmen kan holdes jevn.that the material flow can be kept steady.

Oppfinnelsen skal beskrives nærmere i det følgende under henvisning til figurene, som viser anordningen ifølge oppfinnelsen. Fig. 1 viser skjematisk en dobbeltskiveraffinør ifølge oppfinnelsen. Fig. 2 og 3 viser to riss av den del av anordningen som omfatter innmatingsanordningen. The invention will be described in more detail below with reference to the figures, which show the device according to the invention. Fig. 1 schematically shows a double disc refiner according to the invention. Fig. 2 and 3 show two views of the part of the device which includes the feeding device.

To motroterende maleskiver 1,2 er anordnet på hver sin aksel 3,4, hvorunder akslene er drevet hver for seg av motorer Two counter-rotating grinding discs 1,2 are each arranged on a separate shaft 3,4, under which the shafts are driven separately by motors

(ikke vist) De nærmest maleskivene anordnete lågere 5,6 er vist på figuren. Rundt maleskivene 1 og 2 er anordnet et malehus 7, for oppsamling av det materiale som etter raffineringén strømmer ut fra spalten mellom maleskivene. Den ene maleskiven 1 er nær sentrum forsynt med åpninger 8 for tilførsel av materiale som skal raffineres. Rett overfor disse åpninger 8 er malehuset åpent mot akslen 3 og tilsluttet til en innmatingstrakt 9 for styring av materialet mot åpningen i malehuset. Trakten 9 er forsynt med en damputskiller 10, hvor materialet kan falle ned i et rør 11 og hvor dampen passerer ved siden av røret 11 og ut gjennom en åpning 12 (not shown) The lower ones 5,6 arranged closest to the grinding discs are shown in the figure. A grinding house 7 is arranged around the grinding discs 1 and 2, for collecting the material which, after refining, flows out from the gap between the grinding discs. The one grinding disk 1 is provided near the center with openings 8 for the supply of material to be refined. Directly opposite these openings 8, the grinding house is open to the shaft 3 and connected to an infeed funnel 9 for guiding the material towards the opening in the grinding house. The funnel 9 is provided with a steam separator 10, where the material can fall into a pipe 11 and where the steam passes next to the pipe 11 and out through an opening 12

.på oversiden av damputskilleren 10..on the upper side of the steam separator 10.

I den nedre del av trakten 9 er anordnet en rotor 13, som er roterbar rundt en horisontal aksel 14 med høy hastighet. Rotoren 13 omfatter et antall radiale armer 15 som er forsynt med skovler eller plater 16. Forøvrig er rotoren åpen slik at den tillater passasje av damp bakover. Skovlene kan være i et antall av fire og In the lower part of the funnel 9, a rotor 13 is arranged, which can be rotated around a horizontal shaft 14 at high speed. The rotor 13 comprises a number of radial arms 15 which are provided with vanes or plates 16. Otherwise the rotor is open so that it allows the passage of steam backwards. The blades can be in a number of four and

utrustet med en fortannet ytterkant. Mellom rotoren 13 og åpningene 8 i maleskiven 1 er anordnet fri passasje for materialet. Det materiale som mates ned gjennom trakten 9 til rotoren 13 kommer equipped with a toothed outer edge. Free passage for the material is provided between the rotor 13 and the openings 8 in the grinding disc 1. The material that is fed down through the funnel 9 until the rotor 13 arrives

derfor av rotoren til å slynges inn i åpningene 8 i maleskiven 1 med høy hastighet. Hastigheten skal være 10-30 m/s, hensiktsmessig 15-2 5 m/s. På grunn av materialets hastighet og på grunn av at det ikke fyller opp rommet foran åpningene 8, kan damp strømme bakover uten å forstyrre materialstrømmen. Når flisen er kommet inn i åpningene 8 påvirkes den av sentrifugalkraften og føres videre inn mellom skivene 1,2. therefore of the rotor to be flung into the openings 8 in the grinding disc 1 at high speed. The speed should be 10-30 m/s, ideally 15-25 m/s. Because of the speed of the material and because it does not fill up the space in front of the openings 8, steam can flow backwards without disturbing the flow of material. When the tile has entered the openings 8, it is affected by the centrifugal force and is carried further between the disks 1,2.

Mengden av materiale som skal mates inn bestemmes av en foran rotoren plasert doseringsanbrdning (ikke vist) i røret 11. Den kan f. eks. utgjøres av en slusemater. Alternativt kan materialet mates frem til rotoren 13 ved hjelp av en skrue. The amount of material to be fed in is determined by a dosing device (not shown) placed in front of the rotor in the pipe 11. It can e.g. consists of a sluice feeder. Alternatively, the material can be fed to the rotor 13 by means of a screw.

For å minske risikoen for tilstopning i den nedre del av trakten 9 kan det i visse tilfeller være hensiktsmessig å anord-ne torotorer 13 i serie i den nedre del av trakten. Et annet al-ternativ er å kombinere anordningen ifølge oppfinnelsen med en anordning ifølge norsk patentsøknad nr./:;..; In order to reduce the risk of clogging in the lower part of the funnel 9, it may in certain cases be appropriate to arrange torotors 13 in series in the lower part of the funnel. Another alternative is to combine the device according to the invention with a device according to Norwegian patent application no./:;..;

Oppfinnelsen er naturligvis ikke begrenset til den viste utførelsesform, men kan varieres innenfor rammen av oppfinnelses-tanken. The invention is of course not limited to the embodiment shown, but can be varied within the framework of the inventive idea.

Claims (4)

1. Anordning for raffinering av fibermateriale i form av flis omfattende to motroterende maleskiver (1,2) av hvilke en (1) er forsynt med nær sentrum plaserte åpninger (8) for innmating av flisen til mellomrommet mellom skivene, samt en innmatingstrakt (9) for styring av flisen mot nevnte åpninger (8), karakterisert ved at det i innmatingstraktens (9) nedre del er anordnet en med skovler (16) forsynt rotor (13) med horison-" tal aksel, hvilken rotor er anordnet til med høy hastighet å slynge flisen inn i åpningene (8) i maleskiven (1).1. Device for refining fiber material in the form of chips comprising two counter-rotating grinding discs (1,2) of which one (1) is provided with openings (8) located close to the center for feeding the chips into the space between the discs, as well as a feed funnel (9) ) for steering the tile towards said openings (8), characterized in that a rotor (13) equipped with vanes (16) is arranged in the lower part of the feed funnel (9) with a horizontal shaft, which rotor is arranged with a high speed to sling the tile into the openings (8) in the grinding disc (1). 2. Anordning som angitt i krav 1, karakterisert ved at det ovenfor rotoren (13) er anordnet et rør (11) gjennom hvilket flisen skal falle ned mot rotoren (13) i en jevn strøm.2. Device as stated in claim 1, characterized in that above the rotor (13) a pipe (11) is arranged through which the chip is to fall down towards the rotor (13) in a steady stream. 3. Anordning som angitt i krav 1, karakterisert ved at en doseringsskive er anordnet for å mate frem flisen til rotoren (13).3. Device as stated in claim 1, characterized in that a dosing disc is arranged to feed the chip to the rotor (13). 4. Anordning som angitt i et. av de foregående krav, karakterisertvedat rotoren (13) består av et antall radiale armer (15) med skovler (16) i form av radialt anordnete plater plasert i armenes ytre ende.4. Device as specified in et. of the preceding claims, characterized in that the rotor (13) consists of a number of radial arms (15) with vanes (16) in the form of radially arranged plates placed at the outer end of the arms.
NO773112A 1976-09-09 1977-09-08 DEVICE FOR REFINING FIBER MATERIAL NO773112L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7609972A SE7609972L (en) 1976-09-09 1976-09-09 DEVICE FOR REFINING FIBER MATERIAL

Publications (1)

Publication Number Publication Date
NO773112L true NO773112L (en) 1978-03-10

Family

ID=20328844

Family Applications (1)

Application Number Title Priority Date Filing Date
NO773112A NO773112L (en) 1976-09-09 1977-09-08 DEVICE FOR REFINING FIBER MATERIAL

Country Status (9)

Country Link
JP (1) JPS5335003A (en)
AT (1) AT349862B (en)
AU (1) AU2840277A (en)
BR (1) BR7705988A (en)
DE (1) DE2740075A1 (en)
FI (1) FI772559A7 (en)
FR (1) FR2364289A1 (en)
NO (1) NO773112L (en)
SE (1) SE7609972L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10018262A1 (en) * 2000-04-13 2001-10-18 Voith Paper Patent Gmbh Process for dispersing a paper pulp and plant for carrying out the process
DE202006008820U1 (en) * 2006-06-03 2006-08-17 Frymakoruma Ag Apparatus for dispersing and/or homogenizing liquids comprises processing unit comprising two independently rotating concentric toothed wheels driven on horizontal shafts
DE102008045820A1 (en) 2008-09-05 2010-04-08 Axel Wittek Transition elements for passing a dispersion in the treatment in a rotor-stator dispersing machine
DE102017113795A1 (en) * 2017-06-22 2018-12-27 Voith Patent Gmbh Fiber treatment arrangement
CN115957679A (en) * 2023-02-01 2023-04-14 重庆工商大学 Composition, production process and processing device of a general-purpose fuel oil additive

Also Published As

Publication number Publication date
FI772559A7 (en) 1978-03-10
AT349862B (en) 1979-04-25
AU2840277A (en) 1979-03-08
FR2364289A1 (en) 1978-04-07
SE7609972L (en) 1978-03-10
BR7705988A (en) 1978-08-22
DE2740075A1 (en) 1978-03-23
JPS5335003A (en) 1978-04-01
ATA630077A (en) 1978-09-15

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