NL273214A - - Google Patents

Info

Publication number
NL273214A
NL273214A NL273214DA NL273214A NL 273214 A NL273214 A NL 273214A NL 273214D A NL273214D A NL 273214DA NL 273214 A NL273214 A NL 273214A
Authority
NL
Netherlands
Prior art keywords
liquid
pipe
chamber
gas
pulp
Prior art date
Application number
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.)
Publication of NL273214A publication Critical patent/NL273214A/xx

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
    • B03D1/24—Pneumatic
    • B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
    • 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
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • 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
    • B03D1/1418—Flotation machines using centrifugal forces
    • 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
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

965,706. Separating solids by froth flotation; agitating slurries ; aerating liquids. HEYL & PATTERSON Inc. Nov. 13, 1961, No. 40583/61. Headings B1C and B2H. In a froth flotation process or apparatus for carrying out such a process liquid 7 is impelled through a pipe 2 into slurry 5 below the surface 6 thereof and released to spread out into the slurry 5 and a gas is delivered through the vortex, unmixed with the liquid 7, where such liquid 7 is released into the slurry and the gas is broken up into fine bubbles 10 which rise through the slurry 5 and pick up particles to form froth. In the arrangement shown in Fig. 4, pulp 5<SP>1</SP> is contained within a receptacle 4<SP>1</SP> provided with a conical bottom 4<SP>11</SP>. Liquid is introduced tangentially into a chamber 11<SP>1</SP> through an inlet 12<SP>1</SP> and gas under pressure is introduced into the chamber 11<SP>1</SP> through a pipe 13<SP>1</SP>. The gas and liquid then pass from the chamber 11<SP>1</SP> down a pipe 3<SP>1</SP> into the pulp 5<SP>1</SP> to form fine bubbles 10<SP>1</SP> which attach themselves to particles in the pulp 5<SP>1</SP> to form a froth 14 which overflows into a trough 16. Part of the pulp 5<SP>1</SP> may be recirculated through a pipe 17, pump 18, pipe 19, inlet 12<SP>1</SP> and chamber 11<SP>1</SP>. Liquid or pulp 5<SP>1</SP> may be supplied to the receptacle 4<SP>1</SP> at 20 and tailings may be discharged through a pipe 21. Gas may be introduced into the chamber 11<SP>1</SP> with the liquid through the tangential inlet 12<SP>1</SP> and separated from the liquid within the chamber 11<SP>1</SP> due to a swirling or centrifugal action. In a further embodiment, Fig. 5 (not shown), gas is introduced through a pipe projecting upwardly into a vortex cavity formed by the liquid 7 issuing from the bottom of the pipe 2 shown in Fig. 1.
NL273214D 1961-11-13 NL273214A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB40583/61A GB965706A (en) 1961-11-13 1961-11-13 Froth flotation process and apparatus
NL273214 1962-01-05
DEH44569A DE1186811B (en) 1961-11-13 1962-01-09 Method and device for ventilating a flotation vessel

Publications (1)

Publication Number Publication Date
NL273214A true NL273214A (en)

Family

ID=27210795

Family Applications (1)

Application Number Title Priority Date Filing Date
NL273214D NL273214A (en) 1961-11-13

Country Status (3)

Country Link
DE (1) DE1186811B (en)
GB (1) GB965706A (en)
NL (1) NL273214A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1144463A (en) * 1965-09-28 1969-03-05 Licencia Talalmanyokat Flotation equipment
US3446353A (en) * 1966-04-25 1969-05-27 Zinc Corp Ltd The Method and apparatus for froth flotation
US3531406A (en) * 1968-08-23 1970-09-29 Ontario Research Foundation Method and apparatus for the fail-safe introduction of a bactericidal gas into liquid sewage
GB2041788B (en) * 1978-08-21 1982-10-06 Feldmuehle Ag Method and device for cleaning suspension fibres
DE3242058A1 (en) * 1982-11-13 1984-05-17 Klöckner-Humboldt-Deutz AG, 5000 Köln METHOD AND DEVICE FOR PROCESSING FINE CARBON
DE3243223C1 (en) * 1982-11-23 1984-05-24 J.M. Voith Gmbh, 7920 Heidenheim Process and device for flotation of fiber suspensions
US6290855B1 (en) * 1998-08-27 2001-09-18 Donald J. Savegnago Device for aerating a body of water, method for aerating a body of water

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE345243C (en) * 1914-07-30 1921-12-08 Minerals Separation Ltd Foam floating method and device for processing ores

Also Published As

Publication number Publication date
GB965706A (en) 1964-08-06
DE1186811B (en) 1965-02-11

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