CN1446620A - Method and appts. enabling fluid mixed with freely-flowing medium - Google Patents

Method and appts. enabling fluid mixed with freely-flowing medium Download PDF

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Publication number
CN1446620A
CN1446620A CN03107342A CN03107342A CN1446620A CN 1446620 A CN1446620 A CN 1446620A CN 03107342 A CN03107342 A CN 03107342A CN 03107342 A CN03107342 A CN 03107342A CN 1446620 A CN1446620 A CN 1446620A
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CN
China
Prior art keywords
fluid
raw material
suspended substance
fibrous raw
material suspended
Prior art date
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Application number
CN03107342A
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Chinese (zh)
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CN1302837C (en
Inventor
M·格伦格
P朔伊歇尔
J·施特拉瑟
K·亨里克森
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Andritz AG
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Andritz AG
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Publication date
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Publication of CN1446620A publication Critical patent/CN1446620A/en
Application granted granted Critical
Publication of CN1302837C publication Critical patent/CN1302837C/en
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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

Landscapes

  • 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)

Abstract

The invention relates to the device and method of mixing liquid in free-flowing medium, such as fiber raw material suspension, which characters in that the liquid is mixed to the medium as fiber raw material suspension in higher relative velocity than flowing medium. The invention also relates to a device implementing the method.

Description

Make fluid sneak into the method and apparatus of free-flowing medium
Technical field
The present invention relates to a kind of fluid that makes and sneak into free-flowing medium, for example the method for fibrous raw material suspended substance.The invention still further relates to a kind of device of implementing this method.
Background technology
The whole bag of tricks requires steam, and reacting gas, water or chemical products are sneaked into flow media individually or jointly.Particularly in pulp and paper industry field, with steam water (filter liquor) and suspended substance are warmed in the most applications.Nowadays in most applications, be in the pipe that leads to a retort, to carry out such operation.Various chemical products are also sneaked into flow media with gas form and/or liquid form.If sneak into liquid, can use static mixer, liquid promptly to be sneaked into for example supplies in the pipe by jet pipe, and the fibrous raw material suspended substance is transferred by a kind of device with liquid then, and this device passes through repeatedly deflection mixes two media stream.If entrained gas or steam carry out such operation by the jet pipe that is arranged on the pipe circumference usually, make that carrying out total amount by several (a plurality of) batching point distributes.The shortcoming of all these methods and/or structure is particularly to occur in batching point place partly with the reaction of reactive chemical products and steam, may cause distributing unevenly.If use the Steam Heating medium, notice in the hot-spot at batching point place, under fibrous raw material suspended substance situation, will cause damaged fiber.
Summary of the invention
Therefore target of the present invention is to set up and makes fluid evenly be scattered in mobile medium.
Therefore the invention is characterized in that fluid to be sneaked into sneaked into flow media with the relative velocity higher than medium, for example the fibrous raw material suspended substance.By sneaking into fluid, can obtain the very uniformly distribution of this fluid in medium with the relative velocity higher than flow media.By this way, can avoid hot-spot (as when adding steam) and damage as fiber in the practice.When sneaking into chemical products, can obtain uniform distribution and even effect therefore.
Further favourable progress of the present invention is that steam is blended into flow media for example in the fibrous raw material suspended substance, and particularly the medium of fibrous raw material suspended substance is heated to higher temperature, for example reaches 180 ℃.At jar, for example the medium of fibrous raw material suspended substance is evenly heated not long ago, sneaks into steam.Suitable infeeding in the Design of device, the steam that is added is incited somebody to action even before the steam that is added entered jar, condensation in medium made and guarantees to heat completely.
If a kind of gas, preferably a kind of reacting gas, oxygen for example, ozone, perhaps chlorine is blended in the medium such as the fibrous raw material suspended substance, and the reaction especially uniformly with medium then is provided.
Similarly, if a kind of fluid and/or chemical products water for example, peroxide, alcohol, acid, additive or auxiliary material are added into fluid media (medium), and for example the fibrous raw material suspended substance is suitable for too.
Verified make steam and/or gas and/or liquid mix advantageous particularly.
A particularly advantageous distortion is that the fluid that mixes is transmitted simultaneously.
The invention still further relates to and a kind of fluid is blended into flow media, as the device in the fibrous raw material suspended substance.According to the present invention, this device is characterised in that the runner that the high relative velocity of a generation one between fluid to be added and circulation medium is set.This fluid to be added is distributed in the medium such as the fibrous raw material suspended substance by this way very carefully.
If distributor is jet pipe particularly, be arranged in the high relative velocity zone, fluid then to be mixed can add at preferred some place.
What have superiority especially for runner is to have a quill shaft that is used to supply with fluid.Like this, fluid to be mixed can directly supply in the flow media and can be distributed especially equably.
If the distributor of at least one cross frame shape is arranged on the quill shaft place, then can obtain particularly advantageous distribution.The good especially distribution of fluid to be mixed is provided like this.
If runner has additional conveying effect, then in most of the cases do not need to be provided with a suitable pump.
Be chosen in and set up high relative velocity between flow media and the fluid to be added and be also that runner is equipped with flow media is transmitted blade through nozzle for supplying-by this runner, to supply with fluid to be added at a high speed.
The present invention is that also one makes fluid be blended into free-flowing medium, particularly the device group in the fibrous raw material suspended substance.Preferably this device is arranged in the pipe, particularly in a deflection of a pipe.
In addition, this device can be arranged in one jar or in the dead ahead of a retort.
Brief description of drawings
The present invention will quote embodiment with reference to the accompanying drawings and describe, and accompanying drawing comprises:
Fig. 1 illustrates according to one type of prior art syringe;
Fig. 2 is a distortion of the present invention;
Fig. 3 is further distortion of the present invention;
Fig. 4-6 is a different structure of the present invention; With
Fig. 7 is the embodiment of a runner of the present invention.
The specific embodiment
Fig. 1 illustrates a kind of device corresponding to prior art.Wherein fibrous raw material or pulp suspended substance extract from jar 1 with pump, and wherein this jar 1 can be the vertical tube or the storage tank of a for example washer.Pipe 4 includes--one steam supply 6 except pump 2, and this steam is supplied with 6 and comprised a plurality of cap relief valves that are provided with around the pipe circumference.Then, suspended substance is fed into this process tank 9 by a booster pump 8.This suspended substance must have than in most cases being the low pressure of pressure of the adding steam of low-pressure steam in the steam input point.
Fig. 2 shows according to device 10 of the present invention, free-flowing medium wherein, and for example the fibrous raw material suspended substance is supplied to by a pipe 11, and the medium that is mixed with fluid is by pipe 12 dischargings.Device 10 is provided with rotation quill shaft 13, is supplied to by this fluid 14 that rotates quill shaft 13, such as steam gas or liquid.Be provided with a distributor 15 with opening 16 at the end of quill shaft 13, fluid to be sneaked into is supplied directly onto in the mobile medium with high relative velocity by opening 16.
Figure 3 illustrates further distortion of the present invention.Device 10 has an axle 17 that rotates, and axle 17 has runner bucket 18.In addition, special distributor 19 can be set.In this distortion, fluid to be sneaked into is supplied with by the jet pipe 20 of suitable setting, therefore can supply with different fluids in different positions.Therefore, for example, the steam that is used to heat can be supplied at the feed point 20 ' of the most close input pipe 11.The very fast condensation of this steam makes position 20 subsequently " may evenly sneak into such as the reacting gas of ozone or such as the liquid of peroxide.
Fig. 4-6 shows the different structure of device 10.Fig. 4 wherein has the device 10 that is arranged in the pipe bend 21 roughly corresponding to Fig. 2.Because the deflection of flowing has further improved mixing and has reduced friction loss.
Structure among Fig. 5 show be installed in one jar 22 according to device 10 of the present invention.Wherein, runner 23 is installed on the quill shaft 13.By quill shaft 13, such as steam, the suitable fluid of gas or liquid is evenly sneaked into.Be used for the so-called stock chest situation of paper industry, the eddy current of being set up by runner 23 causes the whole liquid in jar to circulate, and has therefore guaranteed even mixing.
Fig. 6 be illustrated in the reactor 24 according to device 10 of the present invention.Medium such as the fibrous raw material suspended substance is fed in the reactor 24 by a pipe 11 '.Such as steam, the fluid reaction medium of gas or liquid is directly supplied in the flow media by the runner quill shaft 13 with the distributor of high relative velocity by comprising a cross frame shape at least, and uniform distribution in medium.
Fig. 7 illustrates a runner embodiment of the present invention.Wait that the exit opening 16 of sneaking into fluid is clearly shown at this.
Advantageous applications of the present invention is to be used for sneaking into steam and/or chemical products in the delignification and the bleaching of pulp.In a word, steam is blended into the alcohol suspended substance of fragment/boiling or has in the pulp suspended substance of fiber of 0.1-20%, so that heat, and/or sneak into chemical products for delignification and/or bleaching.As required, such as oxygen, ozone, chlorine, chlorine dioxide, the gas of sulfur dioxide can be sneaked into, and also can sneak into the liquid such as white liquid or peroxide.In addition, temperature is an important reaction normal.Therefore scope is elevated to about 180 ℃ under the help at steam in the initial temperature of the pulp suspended substance between 10-100 ℃.Can evenly increase the temperature of pulp suspended substance and can avoid the disadvantageous hot-spot of medium each several part by the present invention.By selecting suitable supply position, the suspended substance of previous heating (be provided with need/reaction temperature of expectation), the reacting gas and/or the liquid reactions chemical products that need are evenly mixed.Can also advantageously add acid and/or alcohol so that adjust pH value.

Claims (14)

1. fluid is sneaked into the method in free-flowing medium such as the fibrous raw material suspended substance, it is characterized in that, fluid to be sneaked into is by to be blended into medium than the fast relative velocity of flow media, for example in the fibrous raw material suspended substance.
2. method according to claim 1 is characterized in that steam is blended in the free-flowing medium, and particularly in the fibrous raw material suspended substance, particularly the medium of fibrous raw material suspended substance is heated to higher temperature, for example reaches 180 ℃.
3. method according to claim 1 is characterized in that, and is a kind of preferably such as oxygen, and the gas of the reacting gas of ozone or chlorine is blended in the medium of fibrous raw material suspended substance particularly.
4. method according to claim 1 is characterized in that, such as water, and peroxide, alcohol, acid, a kind of fluid of additive or auxiliary material and/or chemical products are blended in the medium of fibrous raw material suspended substance particularly.
5. according to each described method of claim 1-4, it is characterized in that steam and/or gas and/or liquid are mixed together.
6. according to each described method of claim 1-5, it is characterized in that the fluid of mixing is transmitted simultaneously.
7. fluid is sneaked into for example device in the fibrous raw material suspended substance of free-flowing medium, it is characterized in that, be provided with one and produce the runner (10) of high relative velocity between fluid to be added and flow media.
8. device according to claim 7 is characterized in that, is provided with distribution system (15), particularly jet pipe (16,20,20 ', 20 ") in high relative velocity zone.
9. according to claim 7 or 8 described devices, it is characterized in that this runner (10) has a quill shaft (13) that is used to supply with fluid.
10. device according to claim 9 is characterized in that, a cross frame shape distributor (15) is set in the end of this quill shaft (13).
11., it is characterized in that this runner has additional conveying effect according to each described device of claim 7-10.
12. by means of according to each described device of claim 7-11 be used for fluid is blended into device group such as the free-flowing medium of fibrous raw material suspended substance, it is characterized in that, this device (10) is arranged in the pipe (21), particularly in the deflection of a pipe.
13. by means of according to each described device of claim 7-11, be used for fluid is blended into device group such as the free-flowing medium of fibrous raw material suspended substance, it is characterized in that this device (10) is arranged in one jar (22).
14. by means of according to each described device of claim 7-11, be used for fluid is blended into device group such as the free-flowing medium of fibrous raw material suspended substance, it is characterized in that this device (10) is arranged on the positive front of a retort (24).
CNB031073425A 2002-03-21 2003-03-20 Method and appts. enabling fluid mixed with freely-flowing medium Expired - Fee Related CN1302837C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0043102A AT413017B (en) 2002-03-21 2002-03-21 METHOD AND DEVICE FOR MIXING FLUIDS INTO FLOWABLE MEDIA
ATA431/2002 2002-03-21

Publications (2)

Publication Number Publication Date
CN1446620A true CN1446620A (en) 2003-10-08
CN1302837C CN1302837C (en) 2007-03-07

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ID=27768010

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CNB031073425A Expired - Fee Related CN1302837C (en) 2002-03-21 2003-03-20 Method and appts. enabling fluid mixed with freely-flowing medium

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107961687A (en) * 2017-11-21 2018-04-27 中国中轻国际工程有限公司 A kind of the static liquid mixed structure and its control method of internal installation

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Publication number Priority date Publication date Assignee Title
US7121490B2 (en) * 2004-04-08 2006-10-17 Deseret Laboratories, Inc. Chopper blade apparatus and method for refining particles
EP1600205A1 (en) * 2004-05-28 2005-11-30 Sika Technology AG Mixing apparatus and method for adding an additive to a pumpable mixture
US20060280027A1 (en) * 2005-06-10 2006-12-14 Battelle Memorial Institute Method and apparatus for mixing fluids
WO2007038128A2 (en) * 2005-09-21 2007-04-05 Tarome, Inc. Apparatus and method for use in making ruminant feedstuff
US9102885B2 (en) 2013-07-26 2015-08-11 Renmatix, Inc. Method of transporting viscous slurries
DE102013017887B4 (en) * 2013-10-28 2016-09-15 Bernhard Giersberg mixing device

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US4577974A (en) * 1984-05-04 1986-03-25 Kamyr, Inc. Medium consistency mixer rotor and stator construction
FI95821B (en) * 1991-10-18 1995-12-15 Ahlstroem Oy A method and apparatus for mixing a gas with a medium and a bleaching process applying the method
FI104621B (en) * 1996-06-03 2000-03-15 Ahlstroem Oy A method and apparatus for mixing a second medium with a first medium
JPH11511694A (en) * 1996-06-03 1999-10-12 ベロイト・テクノロジーズ・インコーポレイテッド High turbulence mixer
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
US5863120A (en) * 1997-01-31 1999-01-26 Beloit Technologies, Inc. Medium consistency liquid mixture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107961687A (en) * 2017-11-21 2018-04-27 中国中轻国际工程有限公司 A kind of the static liquid mixed structure and its control method of internal installation
CN107961687B (en) * 2017-11-21 2024-05-28 中国中轻国际工程有限公司 Internal-mounted static liquid mixing structure and control method thereof

Also Published As

Publication number Publication date
ES2290370T3 (en) 2008-02-16
EP1347092A1 (en) 2003-09-24
AT413017B (en) 2005-10-15
EP1347092B1 (en) 2007-07-25
CN1302837C (en) 2007-03-07
PT1347092E (en) 2007-10-24
ATE368147T1 (en) 2007-08-15
ATA4312002A (en) 2005-03-15
DE50307745D1 (en) 2007-09-06

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