EP0057968A2 - Herstellung von Farbe und dergleichen - Google Patents

Herstellung von Farbe und dergleichen Download PDF

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Publication number
EP0057968A2
EP0057968A2 EP82300057A EP82300057A EP0057968A2 EP 0057968 A2 EP0057968 A2 EP 0057968A2 EP 82300057 A EP82300057 A EP 82300057A EP 82300057 A EP82300057 A EP 82300057A EP 0057968 A2 EP0057968 A2 EP 0057968A2
Authority
EP
European Patent Office
Prior art keywords
container
vessel
liquid
solvent
dispersion
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.)
Withdrawn
Application number
EP82300057A
Other languages
English (en)
French (fr)
Other versions
EP0057968A3 (de
Inventor
Robert William English
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.)
MASTERMIX ENGINEERING Co Ltd
Original Assignee
MASTERMIX ENGINEERING Co Ltd
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 MASTERMIX ENGINEERING Co Ltd filed Critical MASTERMIX ENGINEERING Co Ltd
Publication of EP0057968A2 publication Critical patent/EP0057968A2/de
Publication of EP0057968A3 publication Critical patent/EP0057968A3/de
Withdrawn legal-status Critical Current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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
    • 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
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • 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
    • B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/718—Feed mechanisms characterised by the means for feeding the components to the mixer using vacuum, under pressure in a closed receptacle or circuit system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel

Definitions

  • This invention relates to the manufacture of suspensions of solids in liquids, for example paints, inks and the like in which powdery material is dispersed in solvent.
  • an apparatus comprising a pot or container, and one or more impellers which are rotatable about a vertical axis or axes, at least one of the impellers being mounted for vertical movement so that the location of the maximum agitation zone relative to the depth of the pool of liquid can be adjusted.
  • the container is closed by a cover which may have one or more inlet openings through which the powdery material can be delivered, often in stages.
  • the object of the present invention is to provide improvements and avoid these difficulties.
  • a method of making a viscous liquid or paste using a dispersion apparatus includes the steps of introducing the solvent or other liquid into the dispersion vessel, closing the same, reducing the pressure in the vessel, and by the reduced pressure inducing flow of powder material into the vessel through an outlet disposed below the surface of the liquid.
  • apparatus for making a viscous liquid or paste comprises a closed container, at least one agitator in the container, means for raising and lowering the agitator, and is characterised in that the container is connected to an extractor for lowering the pressure in the container, and in that at least one powder supply duct extends into the vessel so as to terminate below the liquid surface in the vessel.
  • the dispersion apparatus comprises a container 10 provided with a sealed lid 12 and a first low speed impeller 14 which is spaced close to the wall and base of the vessel.
  • the impeller 14 may be driven by an underslung motor (not shown).
  • the apparatus is also provided with a high speed agitator or impeller 16 carried on a shaft 18 driven from a motor 20 and the whole of the parts 16 to 20 are arranged to be raised and lowered by a hydraulic system 22 mounted on the exterior wall of the vessel.
  • the shaft 18 runs co-axially in a powders delivery tube 24 which terminates very slightly above the agitator 16, and which slides in an appropriate gland 26 in the lid of the container.
  • the duct 24 is connected through a flexible hose 28 and a fixed hose system 30 to a silo 32, and the silo may be located in a different room or even in a different building, and the wall 34 is simply illustrative of the fact that it is unnecessary for the silo to be located in the same confines as the dispersion apparatus per se.
  • the container 10 is connected to an extractor fan (not shown) by way of a pipe 36 opening from the container cover.
  • An atmospheric pressure within the container of about minus 0.2 bar has been found to be very suitable.
  • the arrangements for powder supply may include a fluidising valve ensuring free flow from the silo into the duct 30, and effectively air admitted at the end of the duct for example via valve 38 and used in conveying the powder through the duct is subsequently extracted via the pipe 36 in order to maintain the pressure differential.
  • the motor design may be such as to allow bleed of air around the shaft via the seal so that there is a positive flow downwardly of the shaft 18 and this itself reduces the risk of loss of powder, or of contaimination of the motor with powder.
  • the drawing illustrates an arrangement in which a single powder store is connected via a single hose and duct system.
  • a plurality of hose systems will be useful, for example connected to different silos or powder storage hoppers', or possibly the hose 30 may be provided with a number of branches connected to different powder supply sources, and with appropriate valves to control the flow therefrom, so that (usually) one ingredient is dispersed in the solvent before the second one is introduced, and so on.
  • ducts extend through the lid into the container, they may be grouped about the impeller shaft 18 instead of being concentric therewith.
  • the automatic control system of said European Patent No. 0000827 may be found particularly useful with the present invention, in enabling the dip tube or tubes conveying the powders to be automatically raised with the agitator so that the extent of their immersion is maintained substantially constant.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP82300057A 1981-02-11 1982-01-07 Herstellung von Farbe und dergleichen Withdrawn EP0057968A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8104242 1981-02-11
GB8104242 1981-02-11

Publications (2)

Publication Number Publication Date
EP0057968A2 true EP0057968A2 (de) 1982-08-18
EP0057968A3 EP0057968A3 (de) 1984-05-23

Family

ID=10519614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82300057A Withdrawn EP0057968A3 (de) 1981-02-11 1982-01-07 Herstellung von Farbe und dergleichen

Country Status (1)

Country Link
EP (1) EP0057968A3 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291209A2 (de) * 1987-05-13 1988-11-17 Netzsch Mastermix Limited Misch- und Verteilapparat
GB2220586A (en) * 1988-07-15 1990-01-17 Netzsch Mastermix Ltd Mixing and dispersing apparatus
WO2010092541A1 (fr) 2009-02-13 2010-08-19 Patrick Loubeyre Kit destiné à contenir un produit liquide ou visqueux et à être connecté à un dispositif de pulvérisation
US7836688B2 (en) 2005-05-30 2010-11-23 J. Eberspaecher Gmbh & Co. Kg Exhaust system
CN109070023A (zh) * 2017-01-03 2018-12-21 株式会社Lg化学 溶解混合器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH331294A (de) * 1953-09-12 1958-07-15 Karl Schmidt Metallschmelzwerk Verfahren und Vorrichtung zum Einbringen von Substanzen in Flüssigkeiten
US3510109A (en) * 1968-02-08 1970-05-05 Union Carbide Corp Method and apparatus for incorporating fibrous materials into air-free high solids dispersions
US3561733A (en) * 1968-07-30 1971-02-09 Westvaco Corp Vacuum slurry system
EP0000827A1 (de) * 1977-08-12 1979-02-21 The Mastermix Engineering Co. Ltd. Vorrichtung zur Herstellung von Mischungen, Dispersionen und dergleichen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH331294A (de) * 1953-09-12 1958-07-15 Karl Schmidt Metallschmelzwerk Verfahren und Vorrichtung zum Einbringen von Substanzen in Flüssigkeiten
US3510109A (en) * 1968-02-08 1970-05-05 Union Carbide Corp Method and apparatus for incorporating fibrous materials into air-free high solids dispersions
US3561733A (en) * 1968-07-30 1971-02-09 Westvaco Corp Vacuum slurry system
EP0000827A1 (de) * 1977-08-12 1979-02-21 The Mastermix Engineering Co. Ltd. Vorrichtung zur Herstellung von Mischungen, Dispersionen und dergleichen

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291209A2 (de) * 1987-05-13 1988-11-17 Netzsch Mastermix Limited Misch- und Verteilapparat
GB2204807A (en) * 1987-05-13 1988-11-23 Netzsch Mastermix Ltd Mixing apparatus for powder and solvent
EP0291209A3 (de) * 1987-05-13 1990-02-07 Netzsch Mastermix Limited Misch- und Verteilapparat
GB2220586A (en) * 1988-07-15 1990-01-17 Netzsch Mastermix Ltd Mixing and dispersing apparatus
EP0353869A1 (de) * 1988-07-15 1990-02-07 Netzsch Mastermix Limited Mischungs- und Dispersionsapparat
US7836688B2 (en) 2005-05-30 2010-11-23 J. Eberspaecher Gmbh & Co. Kg Exhaust system
WO2010092541A1 (fr) 2009-02-13 2010-08-19 Patrick Loubeyre Kit destiné à contenir un produit liquide ou visqueux et à être connecté à un dispositif de pulvérisation
FR2942172A1 (fr) * 2009-02-13 2010-08-20 Patrick Loubeyre Kit destine a contenir un produit liquide ou visqueux et a etre connecte a un dispositif de pulverisation
CN109070023A (zh) * 2017-01-03 2018-12-21 株式会社Lg化学 溶解混合器
EP3434358A4 (de) * 2017-01-03 2019-07-03 LG Chem, Ltd. Verflüssigungsmischer
US11033865B2 (en) 2017-01-03 2021-06-15 Lg Chem, Ltd. Dissolution mixer
CN109070023B (zh) * 2017-01-03 2021-07-13 株式会社Lg化学 溶解混合器

Also Published As

Publication number Publication date
EP0057968A3 (de) 1984-05-23

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Effective date: 19850124

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Inventor name: ENGLISH, ROBERT WILLIAM