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SE503500C2 - Cylinder for mixing a high viscosity aq. cellulose fibre suspension - Google Patents

Cylinder for mixing a high viscosity aq. cellulose fibre suspension

Info

Publication number
SE503500C2
SE503500C2 SE9403617A SE9403617A SE503500C2 SE 503500 C2 SE503500 C2 SE 503500C2 SE 9403617 A SE9403617 A SE 9403617A SE 9403617 A SE9403617 A SE 9403617A SE 503500 C2 SE503500 C2 SE 503500C2
Authority
SE
Sweden
Prior art keywords
rotor
housing
mixing
media
cross
Prior art date
Application number
SE9403617A
Other languages
Swedish (sv)
Other versions
SE9403617D0 (en
SE9403617L (en
Inventor
Kjell Nilsson
Original Assignee
Regalco 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 Regalco Ab filed Critical Regalco Ab
Priority to SE9403617A priority Critical patent/SE503500C2/en
Publication of SE9403617D0 publication Critical patent/SE9403617D0/en
Priority to PCT/SE1996/000488 priority patent/WO1997038788A1/en
Publication of SE9403617L publication Critical patent/SE9403617L/en
Publication of SE503500C2 publication Critical patent/SE503500C2/en

Links

Classifications

    • 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
    • B01F27/05—Stirrers
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/95—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/96—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with openwork frames or cages
    • 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
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/13—Openwork frame or cage stirrers not provided for in other groups of this subclass
    • 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
    • B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
    • B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
    • B01F27/2324—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes planetary

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

Device for mixing two or more media comprises a vertical,cylindrical mixing vessel contg. an inlet for the media in the vessel wall, a rotor positioned in the vessel with the aid of a housing at one end of the vessel, and an axial outlet at the opposite end of the vessel to the rotor. A first cross-rotor powered by a drive axle is located in the housing and its radial arms are linked via axial rods arranged around the vessel periphery to corresponding arms on a second cross-rotor located in the vessel outlet region.

Description

503 500 Z hydrolysresultat, bör_helst fibernätverket brytas upp så, att alla de individuella fibrerna snabbt nås av syran. Detta kan uppnås genom en så kraftig agitation av blandningen av vatten och fibrer att den fluidiceras. 503 500 Z hydrolysis results, preferably the fiber network should be broken up so that all of them the individual fibers are quickly reached by the acid. This can be achieved through a so vigorous agitation of the mixture of water and fibers that it is fluidized.

Blandningen får då åter egenskaper, son påminner cm en Newtonsk vätska, vilket möjliggör en fullgod och kuxmagen inblandning av syran.The mixture then regains its properties, reminiscent of a Newtonian liquid, which enables a full and thick stomach mixture of the acid.

Materialtransporten genom blandaren honner därmed också att underlättas.The material transport through the mixer is thus also facilitated.

Blandaren skall vidare vara så utförd, att den kan förses med ett invändigt skikt av specialmaterial son skydd för korrosion utan att detta blir för komplicerat eller på annat sätt orimligt fördyrande. Ändamålet med uppfinningen är att åstadkomma en blandare, som är enkel, effektiv och servicevänlig, och son uppfyller de ovan angivna kraven.The mixer must furthermore be so designed that it can be provided with one inner layer of special material son protection against corrosion without this becomes too complicated or otherwise unreasonably expensive. The object of the invention is to provide a mixer which is simple, efficient and service-friendly, and the son meets the above requirements.

Detta har enligt uppfinningen ernåtts därigenon, att blandaren har erhållit de i efterföljande patentkrav angivna kännetecknen. Blandarhuset har en rak, cylindrisk form, och genom en öppning i mantelytan matas medierna in, som skall blandas, väsentligen radiellt i huset där de cnædelbart i öppningen utsätts för en första blandning eller omvalsning av de axiella stängerna, som stryker runt intill blandarhusets cylindriska innervägg.This has been achieved according to the invention in that the mixer has obtained the characteristics specified in the following claims. The mixer housing has a straight, cylindrical shape, and through an opening in the mantle surface the media are fed in, to be mixed, substantially radially in the housing where they are indivisibly in the opening is subjected to a first mixing or re-rolling of the axial ones the rods, which extend around the cylindrical inner wall of the mixing housing.

Inne i huset transporteras medierna vinkelrätt mot inmatningsriktningen och utsätts för åtminstone en ytterligare blandning eller omvalsning men nu vinkelrätt mot den första blandningen och det medelst ett i husets öppna utmatningsände anordnat, med huset koaxiellt, roterande rotorkors med radiella armar son företrädesvis bibringar medieblandningen en stark turbulens.Inside the house, the media is transported perpendicular to the feed direction and subjected to at least one further mixing or re-rolling but now perpendicular to the first mixture and that by means of one in the open of the house discharge end arranged, with the housing coaxial, rotating rotor cross with radial arms son preferably imparts a strong turbulence to the media mixture.

Alternativt kan medierna matas i motsatt riktning gencnnhuset.Alternatively, the media can be fed in the opposite direction through the housing.

Uppfinningen är närmare tydliggjord i det följande under hänvisning till bifogade ritning, son schematiskt visar ett utföringsexepel på en anordning enligt uppfinningen, och på vilken figur l är en sidovy, delvis i sektion, av anordningen, och figur 2 är en ändvy av anordningen.The invention is further elucidated in the following with reference to the accompanying drawing, which schematically shows an embodiment of a device according to the invention, and in which figure 1 is a side view, partly in section, of the device, and Figure 2 is an end view of the device.

Av ritningen framgår, att anordningen består av tre huvuddelar, nämligen ett rakt, cylindriskt blandarhus l, ett rakt, cylindriskt lagerhus 2 och en vid lagerhusets ände anbragt elmotor 3. De tre delarna är flänsade till varandra. På blandarhuset l är ett inmatningsrör 4 fastsvetsat vid en öppning 5 gemon blandarhusets cylindriska vägg 6. Inuti blandarhuset l är en rotor 7 roterbart anordnad. Rotorn har ett rotorkors med radiella armar 8 i husets 1 utmatningsöppning 9 och ett liknande rotorkors 10 vid husets l andra ände, och armarnas 8 ändar är förbundna med ändarna hos rotorkorsets l0 armar genom fyra axiella stänger 15, scm vid rotorkorsens rotation stryker utmed husets l insida.The drawing shows that the device consists of three main parts, namely a straight, cylindrical mixing housing 1, a straight, cylindrical bearing housing 2 and an electric motor 3 arranged at the end of the bearing housing. The three parts are flanged each other. On the mixer housing 1, a feed pipe 4 is welded to an opening 5 gemon the cylindrical wall of the mixer housing 6. Inside the mixer housing 1 is a rotor 7 rotatably arranged. The rotor has a rotor cross with radial arms 8 in the housing 1 discharge opening 9 and a similar rotor cross 10 at the second of the housing 1 end, and the ends of the arms 8 are connected to the ends of the rotor cross 10 arms through four axial rods 15, scm at the rotation of the rotor cross strokes along the inside of the house.

Rotorkorset 10 är fastsatt på en axel ll, som sträcker sig genom en öppning i en ändvägg 12 hos lagerhuset 2, vilken ändvägg 12 samtidigt 3 503 500 utgör en ändvägg hos blandarhuset 1. Axeln ll är lagrad i lager 13 i lagerhuset 2 och är kopplad till motorn 3 via en koppling 14. Axelns ll genomföring i öppningen i ändväggen 12 är omsorgsfullt tätad för att motstå såväl höga tryck san inverkan av starkt korrosiva medier. Vid monteringen av anordningen kan, såsom lätt inses, lagerhuset 2 och motorn 3 som en enhet tillsannans ned rotorn 7, san skjuts in i huset l, monteras mot husets l ändfläns.The rotor cross 10 is attached to a shaft 11 which extends through an opening in an end wall 12 of the bearing housing 2, which end wall 12 simultaneously 3 503 500 constitutes an end wall of the mixer housing 1. The shaft 11 is mounted in bearing 13 i bearing housing 2 and is connected to the motor 3 via a coupling 14. The shaft ll bushing in the opening in the end wall 12 is carefully sealed to resist both high pressures and the impact of highly corrosive media. During assembly of the device can, as will be readily appreciated, the bearing housing 2 and the motor 3 as one unit until the rotor 7, which is pushed into the housing 1, is mounted against the housing l end flange.

Rotorkorset 10 har armar, san är något snedställda för att mata iväg medierna från ändväggen 12, och på liknande sätt är stängerna 15 något snedställda för att mata medierna från väggens 6 insida mot husets 1 inre.The rotor cross 10 has arms, which are slightly inclined to feed away the media from the end wall 12, and similarly the rods 15 are slightly inclined to feed the media from the inside of the wall 6 towards the interior of the housing 1.

Vidare kan de axiella stängerna 15 vara svagt skruvlinjeformígt böjda för att bidraga till mediernas matning genom huset 1 mot utloppsöppningen 9.Furthermore, the axial rods 15 may be slightly helically curved to contribute to the feeding of the media through the housing 1 towards the outlet opening 9.

Armarna 8 hos rotorkorset i utmatningsöppningen 9 är starkare snedställda för att bibringa medierna en stark turbulens vid passagen.The arms 8 of the rotor cross in the discharge opening 9 are more strongly inclined to give the media a strong turbulence at the passage.

Om så erfordras kan ytterligare en eller flera rotorkors vara anordnade på rotorn 7 mellan de båda visade.If required, an additional one or more rotor crosses may be provided on the rotor 7 between the two shown.

Genom den visade uppbyggnaden av blandarhuset 1 och inmatningsröret 4 blir husets tryckupptagande förmåga stor. Dess axiella del har en diameter av 350 nnnoch längden är 600 nun Inmatningsröret 4 har en diameter av 325 mm. Husets 1,4 är tillverkat av rostfritt stål och dess insida är fodrat ned 4 nm tjock plåt av zirkonim 16.Through the shown construction of the mixer housing 1 and the feed pipe 4, the pressure-absorbing capacity of the housing becomes large. Its axial part has a diameter of 350 nnnoch the length is 600 nun The feed tube 4 has a diameter of 325 mm. The housing 1.4 is made of stainless steel and its inside is lined down 4 nm thick sheet of zirconium 16.

Rotorn 7 är tillverkad helt av zirkonium och dess uppbyggnad ger den erforderlig stabilitet för att ta upp hela det vridmanent som motorn 3 kan ge. Denna har en effekt på 75 kW och ett varvtal på 750 rpn, vilket ger rotorn en periferihastighet på ca 13,5 m/s.The rotor 7 is made entirely of zirconium and its construction provides the required stability to absorb the entire torque of the engine 3 can ge. This has an output of 75 kW and a speed of 750 rpn, which gives the rotor a peripheral speed of about 13.5 m / s.

Uppfinningen är självfallet inte begränsad till det här visade och beskrivna utföringsexemplet, utan åtskilliga modifikationer är möjliga inom ramen för den i patentkraven definierade uppfinningstanken. Sålunda kan exmpelvis rotorkorsens armar vara fler än fyra eller mindre än så.The invention is of course not limited to what is shown here and described embodiment, without several modifications are possible within the scope of the inventive concept defined in the claims. Thus For example, the arms of the rotor cross may be more than four or less than that.

Vidare kan ändarna av ett rotorkors vara sannanbundna genom en cirkulär förstärkningsring am ökad styvhet hos rotorn erfordras.Furthermore, the ends of a rotor cross can be truly connected by a circular one reinforcement ring am increased stiffness of the rotor is required.

När medierna matas i den motsatta riktningen än son visats i ut- föringsexemplet måste självfallet rotorkorsens armar och rotorstängerna vara vinklade med hänsyn till den ändrade matningsriktningen.When the media is fed in the opposite direction than shown in the The guide example must of course be the arms of the rotor cross and the rotor rods be angled with respect to the changed feed direction.

Claims (5)

503 sou 9 P A T E N T K R A V503 on 9 P A T E N T K R A V l. Anordning för blandning av två eller flera till anordningen inmatade medier, kännetecknad därav, att blandningen sker i ett rakt, cylindriskt blandarhus (l), i vilket en rotor (7) är lagrad medelst ett till blandarhusets ena ände anbragt lagerhus (2), och vid vars andra ände en axiellt riktad ut- eller inmatningsöppning (9) är belägen, vilken rotor är försedd med ett intill lagerhuset beläget, av en drivaxel drivet, första rotorkors (10) och ett i ut- eller inmatningsöppningen (9) beläget andra rotorkors (8), vilka rotorkors har radiella armar (8), vars ändar hos det första rotorkorset (10) är förbundna med motsvarande ändar hos det andra rotorkorset genom axiella stänger (15), som är anordnade att stryka utmed blandarhusets (l) cylindriska insida och en in- eller utmatningsöppning (5) för medierna, som är anordnad i blandarhusets cylindriska vägg (6).Device for mixing two or more media fed into the device, characterized in that the mixing takes place in a straight, cylindrical mixing housing (1), in which a rotor (7) is mounted by means of a bearing housing (2) arranged at one end of the mixing housing. , and at the other end of which an axially directed discharge or inlet opening (9) is located, which rotor is provided with a first rotor cross (10) driven next to the bearing housing, driven by a first rotor cross (10) and one located in the outlet or inlet opening (9) second rotor crosses (8), which rotor crosses have radial arms (8), the ends of which of the first rotor cross (10) are connected to the corresponding ends of the second rotor cross by axial rods (15) which are arranged to be ironed along the mixer housing (1) cylindrical inside and an inlet or outlet opening (5) for the media, which is arranged in the cylindrical wall (6) of the mixing housing. 2. Anordning enligt krav l, kännetecknad därav, att rotorkorsens radiella armar (8) är vinklade så, att medierna av första rotorkorsets (10) armar medbringas mot utmatningsöppningen (9) och av andra rotorkorsets armar (8) bibringas en stark turbulens.Device according to claim 1, characterized in that the radial arms (8) of the rotor cross are angled so that the media of the arms of the first rotor cross (10) are carried towards the discharge opening (9) and a strong turbulence is imparted by the arms (8) of the second rotor cross. 3. Anordning enligt krav l eller 2, kännteckna därav, att lagerhuset (2) har en ändvägg (12), som samtidigt utgör en ändvägg i blandarhuset (1).Device according to Claim 1 or 2, characterized in that the bearing housing (2) has an end wall (12) which at the same time constitutes an end wall in the mixing housing (1). 4. Anordning enligt något av kraven l-3, kännetecknad därav, att de axiella stängerna (15) är något snedställda för renhållning av blandarhusets (l) cylindriska insida.Device according to one of Claims 1 to 3, characterized in that the axial rods (15) are slightly inclined for cleaning the cylindrical inside of the mixing housing (1). 5. Anordning enligt något av kraven l-4, kännetecknad därav, att de axiella stängerna (15) är svagt skruvlinjeformiga för frannatning av de períferiella delarna av medierna utmed blandarhusets (l) cylindriska insida.Device according to one of Claims 1 to 4, characterized in that the axial rods (15) are slightly helical for removing the peripheral parts of the media along the cylindrical inside of the mixing housing (1).
SE9403617A 1994-10-21 1994-10-21 Cylinder for mixing a high viscosity aq. cellulose fibre suspension SE503500C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9403617A SE503500C2 (en) 1994-10-21 1994-10-21 Cylinder for mixing a high viscosity aq. cellulose fibre suspension
PCT/SE1996/000488 WO1997038788A1 (en) 1994-10-21 1996-04-16 Apparatus for mixing of media

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9403617A SE503500C2 (en) 1994-10-21 1994-10-21 Cylinder for mixing a high viscosity aq. cellulose fibre suspension
PCT/SE1996/000488 WO1997038788A1 (en) 1994-10-21 1996-04-16 Apparatus for mixing of media

Publications (3)

Publication Number Publication Date
SE9403617D0 SE9403617D0 (en) 1994-10-21
SE9403617L SE9403617L (en) 1996-04-25
SE503500C2 true SE503500C2 (en) 1996-06-24

Family

ID=26662156

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9403617A SE503500C2 (en) 1994-10-21 1994-10-21 Cylinder for mixing a high viscosity aq. cellulose fibre suspension

Country Status (2)

Country Link
SE (1) SE503500C2 (en)
WO (1) WO1997038788A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE419603B (en) * 1979-11-27 1981-08-17 Kamyr Ab APPLICATION FOR MIXING TREATMENT AGENTS IN SUSPENSIONS
DE4013912A1 (en) * 1990-04-26 1991-10-31 Fischer Karl Ind Gmbh Reactor for high viscosity melts etc.

Also Published As

Publication number Publication date
WO1997038788A1 (en) 1997-10-23
SE9403617D0 (en) 1994-10-21
SE9403617L (en) 1996-04-25

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