EP1278593B1 - Element de melange statique - Google Patents

Element de melange statique Download PDF

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Publication number
EP1278593B1
EP1278593B1 EP01940350A EP01940350A EP1278593B1 EP 1278593 B1 EP1278593 B1 EP 1278593B1 EP 01940350 A EP01940350 A EP 01940350A EP 01940350 A EP01940350 A EP 01940350A EP 1278593 B1 EP1278593 B1 EP 1278593B1
Authority
EP
European Patent Office
Prior art keywords
mixing
media
flow
static mixing
housing
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
EP01940350A
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German (de)
English (en)
Other versions
EP1278593A1 (fr
Inventor
Manfred Schauerte
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.)
Tracto Technik GmbH and Co KG
Original Assignee
Tracto Technik GmbH and Co KG
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 Tracto Technik GmbH and Co KG filed Critical Tracto Technik GmbH and Co KG
Publication of EP1278593A1 publication Critical patent/EP1278593A1/fr
Application granted granted Critical
Publication of EP1278593B1 publication Critical patent/EP1278593B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • 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
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • 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
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B01F25/4334—Mixers with a converging cross-section
    • 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
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/834—Mixing in several steps, e.g. successive steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles

Definitions

  • the invention relates to the use of a static mixing element for Homogenizing and dispersing liquid, gaseous or powdered Media for producing a drilling fluid.
  • a Liquid with a powdery substance or a liquid or a Suspension, if necessary to facilitate and improve the drilling process for example, a bentonite-water suspension, as a drilling or rinsing fluid should be used.
  • a bentonite-water suspension keeps the cuttings in suspension, Lubricates the pipe string when it is pulled in and protects it after a certain curing phase against the surrounding soil.
  • To the variation of Property of the suspension may contain additives such as soda ash or polymers.
  • drilling fluids are stored in a separate storage tank by an agitator working in this tank, ie a dynamic one Mixer, or mixed by a fast running pump.
  • DE-PS687 926 shows the use of a static mixer which is based on perforated dividing walls, which run transversely to the flow direction, for the production of physical foam for fire fighting purposes.
  • US 4,313,680 A shows a static mixer with perpendicular to the flow direction arranged deflecting elements for mixing of different media with very short reaction time.
  • Japanese Laid-Open Patent 61-242 624 discloses an apparatus for producing an emulsion Water and oil, which has a static mixer.
  • US 4 514 095 A discloses a static mixer for fluids comprising a Mixing effect by diverting part streams from a core area into one Edge area and back reached.
  • US 4,370,062 A describes a mixing gun for mixing two-component adhesives, at the top of a static mixer with baffles sitting.
  • US 4 412 582 A describes a vertical arrangement of baffles in a heat exchanger through which, to improve heat transfer, the flowing fluid is added to turbulence.
  • US 4 854 721 A discloses a device for mixing drinks Concentrate and water, also perpendicular to the main flow direction having arranged deflecting plates.
  • US 5 522 661 A discloses a static mixer which is particularly applicable simple and inexpensive way to produce.
  • the deflection surfaces are arranged at an angle of 45 ° to the flow direction of the fluid.
  • DE 36 18 062 A1 describes a device for mixing pasty or gelatinous components, being from a central in one Mixing tube arranged axis extending in the radial direction guide walls, widening in the radial direction and at an angle to the flow direction of the fluid are arranged.
  • the adjacent guide walls of the a wing ring forming mixing insert overlap each other and have passages.
  • a drilling fluid is the addition medium, such as bentonite, the Water in powder form before or after one of the drilling fluid to the drilling rig forwarded to transporting hydraulic pump. Behind the pump can one be arranged static mixing section, which is the additive and the water homogenized.
  • a static mixer as he for example from "weighing + dosing" 3/1997 Page 23 to 26 is usually made of a plurality of diverse, successively connected individual mixing elements, with Help an adapter can be used in a supply or discharge system can.
  • Each of these mixing elements has one or more deflection surfaces which, if appropriate, pass through one or more passages become.
  • the one another either within a mixing element or in Downstream mixing elements following deflection surfaces are always there at small angles inclined to each other and also have regard to the Flow direction of the medium flowing in the conduit coinciding a small; from 90 ° different inclination angle.
  • the deflection surfaces facing each other and to the flow direction at a particular axis angle produce a forced guidance of the flow, so that it repeatedly rotates its flow direction.
  • the possibly passing through the deflection passages also extend at an angle to each other and to the deflection surfaces, so that both a division of the current and a multiple change of the flow direction takes place.
  • the individual streams are brought together again. This multiple splitting, diverting and merging of the media causes their homogenization or dispersion.
  • the geometry of the deflection surfaces and through holes as well their arrangement relative to each other and to the flow direction such be arranged to ensure as possible a lack of dead zones can be, because they prevent a homogeneous mixing.
  • a significant disadvantage of the known static mixer is that the in Complex geometry manufactured mixing elements in complex production processes have to be produced, which costs a considerable amount of time and money cause. Especially the sometimes massive design of the mixer with differently aligned passages makes a high cost of materials required.
  • the invention is therefore based on the object, a static mixer finding an efficient homogenizing and dispersing various Media for producing a drilling fluid with structurally simple It also makes mixing elements easy to manufacture and simple to be cleaned.
  • the object is achieved by the use of a mixing element with at least one deflection surface which is at an angle of 70 to 110 ° to the Main flow direction of the media aligned in the flowed line is for mixing and producing a drilling fluid, in particular a Bentonite-water suspension.
  • the invention is based on the idea that during the impact of the Media on the only slightly inclined to the flow direction deflection and the flow around their edges shear forces that cause the swirling and Mix the media.
  • the particular advantage of the mixing element according to the invention lies in its simple construction, which is manufactured inexpensively and without special machinery can be.
  • Another advantage is that due to the special orientation of the Deflection area no acute angle between the area and the surrounding Housing or the wall are present. This is the cleaning of the mixing element considerably relieved.
  • the deflection surface is in one Angle of 90 ° to the flow direction of the media arranged, i. she stands perpendicular to the flow direction.
  • the shape of the Cross-section of the deflection surface substantially to the cross-sectional contour of flowed through line correspond.
  • its diameter but smaller than that of the line, so that between the line and the Deflection at least one passage for the deflected from the deflection Medium arises.
  • the deflection surface can flow through fastening means directly to the flow Line or on a housing of a line to be used in the line Attached mixing element.
  • the housing of the mixing element can be designed in such a way that lying in the flow direction behind the deflection side surfaces of the housing can be used to guide the medium.
  • they can run in a funnel shape to become one on one Deflection of a downstream or in the same mixing system located Conveying leading constricting passage opening.
  • the deflection surface with Be provided openings that a division of the striking on the surface Enable mediums. This can improve the homogenization be reached, but without significantly cleaning the system is difficult.
  • the individual mixing elements can in a mixed system in a variety be switched one behind the other. It may also be advantageous, mixing elements parallel next to each other when e.g. the flow rate to be increased to media.
  • the mixing element used in the invention can for homogenizing and Mixing of gases, liquids, suspensions or dispersions used become. It can thus be used in a variety of different processes and Devices, e.g. from the fields of chemical or process engineering as well as in the plastics industry, water treatment or in the food industry Find use.
  • drilling fluids e.g. Bentonite-water suspensions
  • Bentonite-water suspensions be used, for example, for horizontal or Vertical holes are needed.
  • a single element 1 of the mixing system consists of a housing 2 with two Sloping surfaces 3 and 4, which are funnel-shaped to a through hole 5 narrow. They allow the passage of the arrow in the direction of the inlet opening 6 in the mixing system inflowing medium.
  • a mixing system of 3 individual elements with in each case one deflection surface and one head piece 12 and one end piece 17 composed. These are sealed by seals 20 against each other. This arrangement can be supplemented as desired by further mixing elements.
  • the head has an inlet opening 6, which on the first, as a component the head piece worked deflection opens.
  • the opening is funnel-shaped.
  • End piece 17 and head 12 are with threaded (not shown here), in the common pipe fittings can be screwed.
  • the media flow into the header 12 via the inlet opening 6 and bouncing on the deflection 9. There they are distracted and flow through the passages 11a, 11b, 11c in the mixing chamber 19. They are partially guided along the inclined surfaces 3 and 4. The media flow in the following through the passage opening 5 to a further deflection surface. They flow through a second mixing element in the manner just described.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (11)

  1. Utilisation d'un élément de mélange statique destiné au mélange de substances ou de milieux, comprenant un boítier (2) avec au moins une surface de déviation (9) disposée dans un angle de 70 à 110° par rapport à la direction d'écoulement des substances ou des milieux, pour fabriquer un fluide de forage.
  2. Utilisation d'un élément de mélange statique destiné au mélange de substances ou de milieux, comprenant un boítier (2) avec au moins une surface de déviation (9) disposée dans un angle de 70 à 110° par rapport à la direction d'écoulement des substances ou des milieux, pour fabriquer une suspension de bentonite et d'eau.
  3. Utilisation d'un élément de mélange statique (1) selon la revendication 1 ou 2, caractérisée en ce que la surface de déviation est disposée dans un angle de 90° par rapport à la direction d'écoulement des substances ou des milieux.
  4. Utilisation d'un élément de mélange statique selon l'une des revendications 1 à 3, caractérisée par au moins un passage (11a, 11b, 11c) entre 1a surface de déviation (9) et le boítier (2).
  5. Utilisation d'un élément de mélange statique selon l'une des revendications 1 à 4, caractérisée par des surfaces obliques (3, 4) du boítier (2) se terminant en forme d'entonnoir.
  6. Utilisation d'un système de mélange destiné à fabriquer un fluide de forage avec au moins un des éléments de mélange statiques utilisés dans les revendications 1 à 5.
  7. Utilisation d'un système de mélange selon la revendication 6, caractérisée par au moins deux éléments de mélange statiques montés en parallèle des éléments de mélange statiques utilisés dans les revendications 1 à 5.
  8. Utilisation d'un système de mélange selon l'une des revendications 6 ou 7, caractérisée en ce qu'une pièce de tête (12) et une pièce d'extrémité (17) sont précontraintes l'une avec l'autre par l'intermédiaire de moyens de traction (13a, 13b, 13c).
  9. Procédé de mélange d'un fluide de forage, en particulier d'une suspension de bentonite et d'eau, caractérisé en ce que les substances ou milieux destinés à être mélangés sont amenés dans un angle de 70 à 110° sur une surface de déviation (9) disposée dans leur direction d'écoulement.
  10. Procédé selon la revendication 9, caractérisé en ce que les substances ou les milieux sont amenés dans un angle de 90° sur une surface de déviation (9) disposée dans leur direction d'écoulement.
  11. Procédé selon l'une des revendications 9 ou 10, caractérisé en ce que les substances ou milieux sont séparés et/ou réunis par un guidage forcé.
EP01940350A 2000-04-20 2001-04-20 Element de melange statique Expired - Lifetime EP1278593B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10019759A DE10019759C2 (de) 2000-04-20 2000-04-20 Statisches Mischsystem
DE10019759 2000-04-20
PCT/EP2001/004516 WO2001080985A1 (fr) 2000-04-20 2001-04-20 Element de melange statique

Publications (2)

Publication Number Publication Date
EP1278593A1 EP1278593A1 (fr) 2003-01-29
EP1278593B1 true EP1278593B1 (fr) 2005-03-23

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EP01940350A Expired - Lifetime EP1278593B1 (fr) 2000-04-20 2001-04-20 Element de melange statique

Country Status (6)

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US (2) US20040100864A1 (fr)
EP (1) EP1278593B1 (fr)
AT (1) ATE291486T1 (fr)
AU (2) AU2001273957B2 (fr)
DE (2) DE10019759C2 (fr)
WO (1) WO2001080985A1 (fr)

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US6337308B1 (en) * 1999-06-08 2002-01-08 Diamond Tank Rentals, Inc. Method and apparatus for homogenizing drilling fluid in an open-loop process
DE10019759C2 (de) * 2000-04-20 2003-04-30 Tracto Technik Statisches Mischsystem
CA2343561C (fr) * 2000-05-08 2004-11-30 Sulzer Chemtech Ag Element de melange pour transition a bride d'une pipeline
DE10032302A1 (de) * 2000-07-04 2001-10-25 Basf Ag Rohrreaktor mit Einrichtungen zur Wärmeübertragung
US6447158B1 (en) * 2000-08-29 2002-09-10 Frank E. Farkas Apertured-disk mixer

Also Published As

Publication number Publication date
US7878705B2 (en) 2011-02-01
DE10019759C2 (de) 2003-04-30
AU7395701A (en) 2001-11-07
US20040100864A1 (en) 2004-05-27
DE10019759A1 (de) 2001-10-31
AU2001273957B2 (en) 2005-03-24
EP1278593A1 (fr) 2003-01-29
US20070211570A1 (en) 2007-09-13
WO2001080985A1 (fr) 2001-11-01
DE50105692D1 (de) 2005-04-28
ATE291486T1 (de) 2005-04-15

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