FI945945A - Procedure and apparatus for slurrying finely divided substances in liquid - Google Patents

Procedure and apparatus for slurrying finely divided substances in liquid Download PDF

Info

Publication number
FI945945A
FI945945A FI945945A FI945945A FI945945A FI 945945 A FI945945 A FI 945945A FI 945945 A FI945945 A FI 945945A FI 945945 A FI945945 A FI 945945A FI 945945 A FI945945 A FI 945945A
Authority
FI
Finland
Prior art keywords
preparing
slurry
solids content
mixing
procedure
Prior art date
Application number
FI945945A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI945945A0 (en
FI100860B (en
Inventor
Hannu Virtanen
Original Assignee
Megatrex Oy
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 Megatrex Oy filed Critical Megatrex Oy
Priority to FI945945A priority Critical patent/FI100860B/en
Publication of FI945945A0 publication Critical patent/FI945945A0/en
Priority to PCT/FI1995/000675 priority patent/WO1996018454A1/en
Priority to AU41188/96A priority patent/AU4118896A/en
Priority to EP95939306A priority patent/EP0797478A1/en
Publication of FI945945A publication Critical patent/FI945945A/en
Application granted granted Critical
Publication of FI100860B publication Critical patent/FI100860B/en

Links

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
    • B01F23/53—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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/59—Mixing systems, i.e. flow charts or diagrams
    • 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
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • 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
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/912—Radial flow

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)

Abstract

The invention relates to a method and an apparatus for preparing slurries of high solids content and high viscosity from liquids and pulverized materials. When preparing such slurries, the mixing of dry solids into the slurry turns difficult as the solids content becomes higher. The invention is based on preparing the slurry in at least two steps through first preparing a slurry with a solids content lower than that of the final product and then mixing into this slurry more solids in at least one step until the desired solids content is attained. Mixing is performed in a pin-mill-type apparatus (1a, 1b) incorporating concentric rings equipped with impact stops which are rotated so that a tangential speed difference is attained between the impact stops.
FI945945A 1994-12-16 1994-12-16 Process and apparatus for slurrying of finely divided substances in liquid a FI100860B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI945945A FI100860B (en) 1994-12-16 1994-12-16 Process and apparatus for slurrying of finely divided substances in liquid a
PCT/FI1995/000675 WO1996018454A1 (en) 1994-12-16 1995-12-11 Method and apparatus for slurrying pulverized materials into a liquid
AU41188/96A AU4118896A (en) 1994-12-16 1995-12-11 Method and apparatus for slurrying pulverized materials into a liquid
EP95939306A EP0797478A1 (en) 1994-12-16 1995-12-11 Method and apparatus for slurrying pulverized materials into a liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI945945A FI100860B (en) 1994-12-16 1994-12-16 Process and apparatus for slurrying of finely divided substances in liquid a

Publications (3)

Publication Number Publication Date
FI945945A0 FI945945A0 (en) 1994-12-16
FI945945A true FI945945A (en) 1996-06-17
FI100860B FI100860B (en) 1998-03-13

Family

ID=8542000

Family Applications (1)

Application Number Title Priority Date Filing Date
FI945945A FI100860B (en) 1994-12-16 1994-12-16 Process and apparatus for slurrying of finely divided substances in liquid a

Country Status (4)

Country Link
EP (1) EP0797478A1 (en)
AU (1) AU4118896A (en)
FI (1) FI100860B (en)
WO (1) WO1996018454A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI108779B (en) 1999-11-24 2002-03-28 Megatrex Oy Process for processing filler-containing reject flows at a paper or cardboard factory and using a device
WO2005000454A1 (en) * 2003-06-27 2005-01-06 Mmd Design & Consultancy Limited Apparatus and method for mixing particulate material with a fluid to form a pumpable slurry
FI119563B (en) 2003-07-15 2008-12-31 Fp Pigments Oy Process and apparatus for the pre-processing of fibrous materials for the production of paper, paperboard or other equivalent
FI119475B (en) * 2004-06-14 2008-11-28 Fractivator Oy A process for preparing a useful product from a slurry
FI117711B (en) 2004-10-13 2007-01-31 Fractivator Oy Method and apparatus for treating materials or mixtures of materials
FI119467B (en) 2007-04-10 2008-11-28 Fractivator Oy Improved recoil mill
FI120733B (en) 2008-11-14 2010-02-15 Fractivator Oy Method and apparatus for preparing finely divided calcium hydroxide
US20180085718A1 (en) * 2015-04-09 2018-03-29 Akzo Nobel Coatings International B.V. Continuous Process for Dispersing Solid Material in a Liquid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649476A5 (en) * 1981-10-23 1985-05-31 Water Line Sa EQUIPMENT FOR CONTINUOUSLY MIXING AND HOMOGENIZING POWDER SUBSTANCES WITH LIQUID SUBSTANCES.
FI83897C (en) * 1988-10-20 1991-09-10 Finnminerals Oy FOERFARANDE FOER FRAMSTAELLNING AV EN PIGMENTBLANDNING FOER BRUK VID YTBELAEGGNING AV PAPPER.

Also Published As

Publication number Publication date
AU4118896A (en) 1996-07-03
WO1996018454A1 (en) 1996-06-20
FI945945A0 (en) 1994-12-16
EP0797478A1 (en) 1997-10-01
FI100860B (en) 1998-03-13

Similar Documents

Publication Publication Date Title
FI945945A (en) Procedure and apparatus for slurrying finely divided substances in liquid
GB1514743A (en) Mixing of particulate materials
SE8404337L (en) A screening device
AU1876100A (en) Process and apparatus for producing particles using a supercritical fluid
JPH11216313A (en) Dewatering and concentrating apparatus
AU530644B2 (en) The separation of gas and solids from waste mixed liquor
CA2037797A1 (en) Method and apparatus for mixing solids and fluids
GB1365077A (en) Screening
CA2047314A1 (en) Method of and apparatus for pumping particulate solids
SE8604430D0 (en) PROCEDURE AND DEVICE FOR MIXING FLUID OR GAS IN A MASS SUSPENSION
GB1421462A (en) Apparatus and method for applying glue to particles of cellu lose-containing material
GB1025079A (en) Method of and apparatus for a flocculating agent with a sludge being centrifuged
AU6200080A (en) Gas separation in liquid/gas reactors
EP0033171A3 (en) Process for dewatering aqueous coal slurries
ES466108A1 (en) Mixing pulverulent drying substances and/or fluent media with one or more liquids
EP0375099A3 (en) Method and apparatus for purifying and separating a high polymer from a solution thereof
MX171295B (en) PROCEDURE AND DEVICE FOR THE SEPARATION OF SOLID PARTICLES OF CHLORINATED LIQUID HYDROCARBONS
US4228002A (en) Enhanced anti-solvent sedimentation of solids from liquids using pressurized carbon dioxide gas
ES8207437A1 (en) Mixer for bulk goods, especially for fibrous suspensions.
FR2369862A1 (en) Centrifugal separation of dispersions into their phases - by adding gas to form bubbles when phase density differences are small
JPS6451115A (en) Separating method for solids from high viscosity substance
GB1291362A (en) Centrifuge for separating solid-liquid mixtures
AU1909183A (en) Production of stabilized high solids, coal-oil mixtures
EP0110530A3 (en) Mixer for mixing fibres into a slurry
CA2092437A1 (en) Method and apparatus for an improved knot drainer

Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: MEGATREX OY

MA Patent expired