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EP0291209A2 - Appareil de mélange et de dispersion - Google Patents

Appareil de mélange et de dispersion Download PDF

Info

Publication number
EP0291209A2
EP0291209A2 EP88303924A EP88303924A EP0291209A2 EP 0291209 A2 EP0291209 A2 EP 0291209A2 EP 88303924 A EP88303924 A EP 88303924A EP 88303924 A EP88303924 A EP 88303924A EP 0291209 A2 EP0291209 A2 EP 0291209A2
Authority
EP
European Patent Office
Prior art keywords
tank
solids
mixing
delivery passage
hopper
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Withdrawn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
EP88303924A
Other languages
German (de)
English (en)
Other versions
EP0291209A3 (fr
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.)
Netzsch Mastermix Ltd
Original Assignee
Netzsch Mastermix 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 Netzsch Mastermix Ltd filed Critical Netzsch Mastermix Ltd
Publication of EP0291209A2 publication Critical patent/EP0291209A2/fr
Publication of EP0291209A3 publication Critical patent/EP0291209A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • B01F35/718051—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings being adjustable
    • 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
    • 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
    • B01F35/712—Feed mechanisms for feeding fluids
    • 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

Definitions

  • This invention relates to the incorporation of solids, that is powders and the like into liquids for example but not exclusively in the manufacture of paint or ink.
  • a mixer or disperser which essentially comprises a tank for the liquid with one or more paddles rotating in the tank.
  • the tank has a lid and the powder is tipped or poured through one or more delivery ports in the lid.
  • EP 000827B which uses a sensor to detect the noise made by the paddle churning the mixture and raises and lowers the paddle in the tank accordingly.
  • mixing and dispersing apparatus comprises a tank provided with a lid and one or more paddles for rotation in the tank, and is characterised by the provision of a vacuum pump connected to the tank above the normal maximum liquid level therein, and a solids delivery passage connected to the tank below the normal minimum liquid level (in use) of the apparatus.
  • a vacuum pump connected to the tank above the normal maximum liquid level therein
  • a solids delivery passage connected to the tank below the normal minimum liquid level (in use) of the apparatus.
  • the hopper may be vibrated by conventional means 19 to fluidise the powder contents and the valve may be a rotary sleeve valve. Air may be admitted at the point 22 through appropriate control valves 23 and further valves and sensors 25 26 27 28 are provided to monitor and control the process.
  • the mixing apparatus comprises, in this instance, a generally cylindrical tank 30 having a shallow conical base 32 and the sidewall and base are swept by an underdriven low speed disperser paddle 34 which conforms to the tank interior and is driven by a motor 38 via a gearbox 36.
  • a high speed disperser paddle 40 is driven by motor 42 carried on telescopic column 44 at the side of the tank which enables the rotor to be lifted and lowered from time to time as the process proceeds, for example in accordance with the mentioned European Patent.
  • Vacuum pump 54 is controlled by further suitable control valves 52-53.
  • the bulk powder storage is located in a separate room or compartment from the mixing and dispersing unit, so that any environmental pollution caused when the hopper is filled is isolated from the dispersing side of the operation.
  • FIG 2 is a more schematic flow diagram of a complete plant for producing a coating for a continuous line of material and in this case the mixer unit 60 is generally similar to that in Figure 1 except that the tank wall is frusto-conical over its lower part so that a deep pool can be formed when the tank is operating at only a fraction of its maximum capacity.
  • the tank of the dispersing apparatus 60 is to be connected to the so-­called big bags of powder 64 66 via appropriate control valves 70 and the connection may be by a lance plunged through the wall of the big bag so that the contents can be sucked out minimising handling and avoiding the risk of atmospheric pollution by emptying bags into hoppers.
  • Figure 2 also shows provision for raw material insertion into the mixing apparatus through the lid via lines 67 in more conventional manner, which may be appropriate for initial supplies of solvents and liquids and possibly also of further solids which are not to be drawn in by the vacuum method.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Coating Apparatus (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP88303924A 1987-05-13 1988-04-29 Appareil de mélange et de dispersion Withdrawn EP0291209A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08711281A GB2204807A (en) 1987-05-13 1987-05-13 Mixing apparatus for powder and solvent
GB8711281 1987-05-13

Publications (2)

Publication Number Publication Date
EP0291209A2 true EP0291209A2 (fr) 1988-11-17
EP0291209A3 EP0291209A3 (fr) 1990-02-07

Family

ID=10617254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88303924A Withdrawn EP0291209A3 (fr) 1987-05-13 1988-04-29 Appareil de mélange et de dispersion

Country Status (2)

Country Link
EP (1) EP0291209A3 (fr)
GB (1) GB2204807A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220586A (en) * 1988-07-15 1990-01-17 Netzsch Mastermix Ltd Mixing and dispersing apparatus
EP0442023A1 (fr) * 1990-01-16 1991-08-21 John Russell Schneider Appareil pour mélanger de la boue avec un convoyeur de poudre sèche
DE4135648C1 (en) * 1991-10-29 1993-05-13 Erich Netzsch Gmbh & Co Holding Kg, 8672 Selb, De Mixing powdered solid into liq. phase e.g. for paint mfr.
NL1001285C2 (nl) * 1995-09-26 1997-03-28 Lambertus Johannes Gerardus Va Inrichting voor het mengen van ten minste twee stoffen.
EP3275532A1 (fr) * 2016-07-29 2018-01-31 Daniatech ApS Système et procédé d'alimentation en poudre et de mélange de la poudre dans un liquide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110585985B (zh) * 2019-07-26 2024-06-28 新乡市阳光电源制造有限公司 一种搅拌机真空上料装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608393A (en) * 1949-01-24 1952-08-26 Stuk O Rite Inc Apparatus for mixing or agitating coating and granular materials
US3314383A (en) * 1964-05-11 1967-04-18 Swift & Co Method and apparatus for vacuum mixing food emulsions
US3561733A (en) * 1968-07-30 1971-02-09 Westvaco Corp Vacuum slurry system
US3871627A (en) * 1973-02-26 1975-03-18 Chemix Corp Chemical mixer
EP0057968A3 (fr) * 1981-02-11 1984-05-23 The Mastermix Engineering Company Limited Fabrication de peinture et analogue
DE3400023A1 (de) * 1984-01-02 1985-07-18 Schwarz Apparate- und Behälterbau GmbH, 7295 Dornstetten Mischvorrichtung
FR2569354B1 (fr) * 1984-08-24 1987-03-27 Roquette Freres Installation de preparation de colles d'amidon
GB2176847A (en) * 1985-06-15 1987-01-07 James Leonard Beattie Hazardous chemical induction system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220586A (en) * 1988-07-15 1990-01-17 Netzsch Mastermix Ltd Mixing and dispersing apparatus
EP0442023A1 (fr) * 1990-01-16 1991-08-21 John Russell Schneider Appareil pour mélanger de la boue avec un convoyeur de poudre sèche
DE4135648C1 (en) * 1991-10-29 1993-05-13 Erich Netzsch Gmbh & Co Holding Kg, 8672 Selb, De Mixing powdered solid into liq. phase e.g. for paint mfr.
US5348390A (en) * 1991-10-29 1994-09-20 Erich Netzsch Gmbh & Co. Holding Kg Method and apparatus for mixing pulverous solids into a liquid phase
NL1001285C2 (nl) * 1995-09-26 1997-03-28 Lambertus Johannes Gerardus Va Inrichting voor het mengen van ten minste twee stoffen.
EP3275532A1 (fr) * 2016-07-29 2018-01-31 Daniatech ApS Système et procédé d'alimentation en poudre et de mélange de la poudre dans un liquide
WO2018020006A1 (fr) 2016-07-29 2018-02-01 Daniatech Aps Système et procédé d'alimentation en poudre et du mélange de la poudre dans un liquide

Also Published As

Publication number Publication date
GB8711281D0 (en) 1987-06-17
GB2204807A (en) 1988-11-23
EP0291209A3 (fr) 1990-02-07

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