EP1347092A1 - Procédé et dispositif de mélange de substances fluides dans des matériaux fluides - Google Patents

Procédé et dispositif de mélange de substances fluides dans des matériaux fluides Download PDF

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Publication number
EP1347092A1
EP1347092A1 EP03005018A EP03005018A EP1347092A1 EP 1347092 A1 EP1347092 A1 EP 1347092A1 EP 03005018 A EP03005018 A EP 03005018A EP 03005018 A EP03005018 A EP 03005018A EP 1347092 A1 EP1347092 A1 EP 1347092A1
Authority
EP
European Patent Office
Prior art keywords
fluid
mixed
medium
steam
rotor
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.)
Granted
Application number
EP03005018A
Other languages
German (de)
English (en)
Other versions
EP1347092B1 (fr
Inventor
Max Dipl. Ing. Grengg
Peter Dipl.Ing.Dr. Scheucher
Johann Ing. Strasser
Kaj Henricson
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.)
Andritz AG
Original Assignee
Andritz AG
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Filing date
Publication date
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Application filed by Andritz AG filed Critical Andritz AG
Publication of EP1347092A1 publication Critical patent/EP1347092A1/fr
Application granted granted Critical
Publication of EP1347092B1 publication Critical patent/EP1347092B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • D21B1/342—Mixing apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F23/23311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F23/23314—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
    • B01F23/23364—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced between the stirrer elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23767—Introducing steam or damp in liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/43—Mixing liquids with liquids; Emulsifying using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
    • 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
    • B01F27/50—Pipe mixers, i.e. mixers wherein the materials to be mixed flow continuously through pipes, e.g. column mixers

Definitions

  • the invention relates to a method for mixing fluids into flowable ones Media, for example fiber suspensions. Furthermore, it affects a device for performing the method.
  • the aim of the invention is therefore an even distribution of flowing in To create media to be mixed with fluids.
  • the invention is therefore characterized in that the to be mixed Fluid with a high relative speed to the flowing medium in this medium e.g. Fibrous suspension, is mixed.
  • the to be mixed Fluid with a high relative speed to the flowing medium in this medium e.g. Fibrous suspension
  • the fluid at high relative speed to the flowing Medium can be a largely uniform distribution of the fluid in the flowing medium can be achieved. This also prevents local overheating (with steam supply) or damage e.g. the fibers practically avoided.
  • An advantageous development of the invention is characterized in that that in the flowing medium, for example fiber suspension, steam mixed in and thus the medium, in particular fiber suspension a higher temperature, for example up to 180 ° C, is heated.
  • a higher temperature for example up to 180 ° C
  • the steam is already condensed in the medium before entering the container so that a complete Heating is guaranteed.
  • reaction gas e.g. Oxygen, ozone or chlorine
  • the flowing medium for example fiber suspension, a liquid and / or chemicals, e.g. Water, Peroxide, alkalis, acids, additives or auxiliary substances can be mixed in.
  • a liquid and / or chemicals e.g. Water, Peroxide, alkalis, acids, additives or auxiliary substances
  • a particularly favorable variant is that the mixed fluids be promoted at the same time.
  • the invention also relates to a device for mixing fluids in flowable media, for example fiber suspensions.
  • a device for mixing fluids in flowable media for example fiber suspensions.
  • This is characterized in that a rotor that has a high Relative speed between the fluid to be added and the generated flowing medium is provided.
  • the fluid to be added will thereby very finely distributed in the medium, for example fiber suspension.
  • Nozzles arranged so that the fluids to be mixed can optimal place.
  • the rotor has a hollow shaft Has supply of the fluids. This allows the fluid to be mixed in directly introduced into the flowing medium and distributed evenly become.
  • a particularly favorable distribution can be achieved if the Hollow shaft at least one distribution star is attached. This enables one particularly good distribution of the fluid to be mixed.
  • Another way to generate a high relative speed between flowing medium and fluid to be added is that a rotor provided with paddles the flowing medium with large Speed is conveyed past the feed nozzles, through which the to be added Fluid is fed.
  • the invention also relates to a system for mixing fluids in flowable media, in particular fiber suspensions. It is advantageous if the device is in a pipeline, in particular a deflection a pipeline.
  • the device can be in a container or directly in front of one Reaction container can be arranged.
  • FIG. 1 shows a device according to the prior art
  • FIG. 2 shows a device 3 shows a further variant of the invention
  • 4 to 6 different arrangements of the invention
  • Fig. 7 an example represent a rotor according to the invention.
  • Fig. 1 shows a system according to the prior art.
  • a Pump 2 a pulp or pulp suspension from a container 1 pumped out, the container 1 e.g. a standpipe of a washer or Storage tanks can be.
  • the pipeline 4 is in addition to the pump 2 a steam feed 6, consisting of several steam valves around the circumference of the lines are provided.
  • a booster pump 8 the suspension in one Treatment container 9 introduced.
  • the suspension must be in the place of Steam supply have a lower pressure than the steam supplied, which is mostly low pressure steam.
  • Fig. 2 shows a device 10 according to the invention, whereby through a line 11 the flowable medium, for example a fiber suspension, fed and via a line 12, the medium mixed with a fluid is discharged again.
  • the device 10 has a rotating Hollow shaft 13 through which a fluid 14, such as. B. steam, a gas or a Liquid is supplied.
  • a fluid 14 such as. B. steam, a gas or a Liquid is supplied.
  • a fluid 14 such as. B. steam, a gas or a Liquid
  • FIG. 3 Another variant of the invention is shown in FIG. 3.
  • the device 10 here has a rotating shaft 17 with rotor blades 18. Furthermore, special distribution devices 19 can also be arranged.
  • the fluid to be mixed is correspondingly arranged nozzles 20 introduced, also at the different Positions different fluids can be introduced. So could e.g. at the addition point 20 'closest to the feed pipe 11 Steam can be fed for heating. This vapor condenses quickly so that at the next position 20 "there is already a reaction gas such as ozone or a liquid reactant such as e.g. Peroxide, evenly can be mixed in.
  • a reaction gas such as ozone
  • a liquid reactant such as e.g. Peroxide
  • FIG. 4 corresponds approximately to FIG. 2, with device 10 in one Pipe elbow 21 is arranged. By redirecting the flow the mixing is further improved and friction losses are reduced.
  • FIG. 5 shows a device 10 according to the invention, which in a container 22 is arranged.
  • the rotor 23 sits here on a hollow shaft 13 through which a corresponding fluid such as e.g. Steam, gas or one Liquid is mixed in evenly.
  • a corresponding fluid such as e.g. Steam, gas or one Liquid is mixed in evenly.
  • a so-called Cloth chest in the paper industry is generated by the rotor 23 Turbulence circulates all of the liquid in the container and thus one uniform interference guaranteed.
  • the medium for example fiber suspension
  • the medium for example fiber suspension
  • the fluid e.g. Steam, gas or a liquid reactant is through the hollow shaft 13 of the rotor, which is equipped with at least one distribution star, directly into the flowing one Medium fed in at a high relative speed and there evenly distributed.
  • FIG. 7 shows an example of a rotor according to the invention. Here, you can well recognize the outlet openings 16 for the fluid to be mixed.
  • a preferred application of the invention is the mixing in of Steam and / or chemicals in the field of pulp delignification and -bleaching.
  • Generally here are in a wood chips cooking liquor suspension or in a pulp suspension with a fiber content of 0.1 to 20% steam to heat the suspension and / or chemicals mixed in for delignification and / or bleaching.
  • gases such as oxygen, ozone, chlorine, chlorine dioxide, sulfur dioxide, or Liquids such as white liquor or peroxide can be used.
  • temperature is an important criterion for the reaction. So it will using steam the initial temperature of the pulp suspension from between 10 and 100 ° C brought to a higher temperature up to about 180 ° C.
  • the feed positions can be in the already heated suspension (setting the required / desired reaction temperature) evenly Desired reaction gas or the liquid reaction chemical to be mixed in. Acids and alkalis can also be beneficial for pH Setting can be mixed in.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP03005018A 2002-03-21 2003-03-06 Procédé et dispositif de mélange de substances fluides dans des matériaux fluides Revoked EP1347092B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4312002 2002-03-21
AT0043102A AT413017B (de) 2002-03-21 2002-03-21 Verfahren und vorrichtung zum einmischen von fluiden in fliessfähige medien

Publications (2)

Publication Number Publication Date
EP1347092A1 true EP1347092A1 (fr) 2003-09-24
EP1347092B1 EP1347092B1 (fr) 2007-07-25

Family

ID=27768010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03005018A Revoked EP1347092B1 (fr) 2002-03-21 2003-03-06 Procédé et dispositif de mélange de substances fluides dans des matériaux fluides

Country Status (6)

Country Link
EP (1) EP1347092B1 (fr)
CN (1) CN1302837C (fr)
AT (2) AT413017B (fr)
DE (1) DE50307745D1 (fr)
ES (1) ES2290370T3 (fr)
PT (1) PT1347092E (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1600205A1 (fr) * 2004-05-28 2005-11-30 Sika Technology AG Mélangeur et procédé pour l'addition d'un additif à un mélange pompable
WO2007038128A3 (fr) * 2005-09-21 2007-07-12 Tarome Inc Appareil pour la fabrication de produits alimentaires pour ruminants
EP1732694A4 (fr) * 2004-04-08 2012-09-05 Deseret Lab Inc Appareil a lames de hacheur et procede d'affinage de particules
TWI401116B (zh) * 2005-06-10 2013-07-11 巴特爾紀念機構 用於混合流體、包含使至少一種流體與近臨界或超臨界載體流體混合的裝置和方法
US9102885B2 (en) 2013-07-26 2015-08-11 Renmatix, Inc. Method of transporting viscous slurries

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013017887B4 (de) * 2013-10-28 2016-09-15 Bernhard Giersberg Mischvorrichtung
CN107961687B (zh) * 2017-11-21 2024-05-28 中国中轻国际工程有限公司 一种内部安装的静态液体混合结构及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577974A (en) * 1984-05-04 1986-03-25 Kamyr, Inc. Medium consistency mixer rotor and stator construction
WO1993007961A1 (fr) * 1991-10-18 1993-04-29 A. Ahlstrom Corporation Procede et appareil de melange d'un premier milieu a un second, et procede de blanchiment mettant en oeuvre ledit procede
WO1997046310A1 (fr) * 1996-06-03 1997-12-11 Beloit Technologies, Inc. Melangeur a hautes turbulences
WO1997046309A1 (fr) * 1996-06-03 1997-12-11 A. Ahlström Osakeyhtiö Procede et dispositif pour melanger un second milieu a un premier milieu
US5863120A (en) * 1997-01-31 1999-01-26 Beloit Technologies, Inc. Medium consistency liquid mixture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6193406B1 (en) * 1996-12-20 2001-02-27 Andritz-Ahlstrom Oy Method and apparatus for mixing pulp a suspension with a fluid medium with a freely rotatable mixing rotor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577974A (en) * 1984-05-04 1986-03-25 Kamyr, Inc. Medium consistency mixer rotor and stator construction
WO1993007961A1 (fr) * 1991-10-18 1993-04-29 A. Ahlstrom Corporation Procede et appareil de melange d'un premier milieu a un second, et procede de blanchiment mettant en oeuvre ledit procede
WO1997046310A1 (fr) * 1996-06-03 1997-12-11 Beloit Technologies, Inc. Melangeur a hautes turbulences
WO1997046309A1 (fr) * 1996-06-03 1997-12-11 A. Ahlström Osakeyhtiö Procede et dispositif pour melanger un second milieu a un premier milieu
US5863120A (en) * 1997-01-31 1999-01-26 Beloit Technologies, Inc. Medium consistency liquid mixture

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1732694A4 (fr) * 2004-04-08 2012-09-05 Deseret Lab Inc Appareil a lames de hacheur et procede d'affinage de particules
EP1600205A1 (fr) * 2004-05-28 2005-11-30 Sika Technology AG Mélangeur et procédé pour l'addition d'un additif à un mélange pompable
WO2005115600A1 (fr) * 2004-05-28 2005-12-08 Sika Technology Ag Dispositif melangeur et procede permettant d'ajouter un adjuvant a un melange apte au pompage
TWI401116B (zh) * 2005-06-10 2013-07-11 巴特爾紀念機構 用於混合流體、包含使至少一種流體與近臨界或超臨界載體流體混合的裝置和方法
WO2007038128A3 (fr) * 2005-09-21 2007-07-12 Tarome Inc Appareil pour la fabrication de produits alimentaires pour ruminants
US9102885B2 (en) 2013-07-26 2015-08-11 Renmatix, Inc. Method of transporting viscous slurries

Also Published As

Publication number Publication date
PT1347092E (pt) 2007-10-24
CN1446620A (zh) 2003-10-08
ES2290370T3 (es) 2008-02-16
ATE368147T1 (de) 2007-08-15
CN1302837C (zh) 2007-03-07
ATA4312002A (de) 2005-03-15
AT413017B (de) 2005-10-15
DE50307745D1 (de) 2007-09-06
EP1347092B1 (fr) 2007-07-25

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