CA2461279C - Rotor de machine de flottation et procede de fonctionnement associe - Google Patents

Rotor de machine de flottation et procede de fonctionnement associe Download PDF

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Publication number
CA2461279C
CA2461279C CA2461279A CA2461279A CA2461279C CA 2461279 C CA2461279 C CA 2461279C CA 2461279 A CA2461279 A CA 2461279A CA 2461279 A CA2461279 A CA 2461279A CA 2461279 C CA2461279 C CA 2461279C
Authority
CA
Canada
Prior art keywords
rotor
flotation machine
body portion
aperture
peripheral edge
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
CA2461279A
Other languages
English (en)
Other versions
CA2461279A1 (fr
Inventor
Jouko Kallioinen
Virendra Mody
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.)
FLSmidth AS
Original Assignee
Groupe Laperriere and Verreault Inc
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 Groupe Laperriere and Verreault Inc filed Critical Groupe Laperriere and Verreault Inc
Publication of CA2461279A1 publication Critical patent/CA2461279A1/fr
Application granted granted Critical
Publication of CA2461279C publication Critical patent/CA2461279C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/16—Flotation machines with impellers; Subaeration machines
    • 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
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • B01F23/234211—Stirrers thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1493—Flotation machines with means for establishing a specified flow pattern

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

Dans le rotor de machine de flottation de cette invention, une partie corps définit une zone intérieure conçue pour communiquer avec une source de gaz. Au moins une pale de rotor fait saillie radialement vers l'extérieur à partir de la partie corps, ce qui définit au moins une ouverture en communication gazeuse avec la zone intérieure. L'ouverture est adjacente à la pale de rotor et est définie en partie par un bord périphérique inférieur. Au moins une lèvre fait saillie radialement vers l'extérieur à partir du bord périphérique inférieur de manière que durant le fonctionnement du rotor, des solides se déplaçant le long de la partie corps soient projetés radialement loin du rotor par cette lèvre et deviennent approximativement alignés avec l'ouverture. Ainsi du gaz s'écoulant de l'ouverture crée des bulles dans la suspension épaisse, lesquelles entraînent au moins une partie des particules solides. Les bulles et les particules solides forment une mousse à la surface de la suspension épaisse, laquelle mousse peut être retirée de la machine de flottation.
CA2461279A 2001-09-21 2002-09-19 Rotor de machine de flottation et procede de fonctionnement associe Expired - Lifetime CA2461279C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US32403101P 2001-09-21 2001-09-21
US60/324,031 2001-09-21
PCT/US2002/029764 WO2003026800A2 (fr) 2001-09-21 2002-09-19 Rotor de machine de flottation et procede de fonctionnement associe

Publications (2)

Publication Number Publication Date
CA2461279A1 CA2461279A1 (fr) 2003-04-03
CA2461279C true CA2461279C (fr) 2011-01-18

Family

ID=23261771

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2461279A Expired - Lifetime CA2461279C (fr) 2001-09-21 2002-09-19 Rotor de machine de flottation et procede de fonctionnement associe

Country Status (3)

Country Link
AU (1) AU2002326989B2 (fr)
CA (1) CA2461279C (fr)
WO (1) WO2003026800A2 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800017A (en) * 1987-04-16 1989-01-24 Dorr-Oliver Incorporated Flotation mechanism
GB2304297B (en) * 1995-08-17 1999-03-31 Svedala Ltd Flotation tank impeller

Also Published As

Publication number Publication date
CA2461279A1 (fr) 2003-04-03
AU2002326989B2 (en) 2006-06-22
WO2003026800A3 (fr) 2004-02-26
WO2003026800A2 (fr) 2003-04-03

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Effective date: 20220920