FR2313127A1 - GAS DISPERSION FLOTATION METHOD AND MACHINE - Google Patents

GAS DISPERSION FLOTATION METHOD AND MACHINE

Info

Publication number
FR2313127A1
FR2313127A1 FR7616448A FR7616448A FR2313127A1 FR 2313127 A1 FR2313127 A1 FR 2313127A1 FR 7616448 A FR7616448 A FR 7616448A FR 7616448 A FR7616448 A FR 7616448A FR 2313127 A1 FR2313127 A1 FR 2313127A1
Authority
FR
France
Prior art keywords
liquid
liquid body
machine
chamber
contained
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.)
Granted
Application number
FR7616448A
Other languages
French (fr)
Other versions
FR2313127B1 (en
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.)
Envirotech Corp
Original Assignee
Envirotech Corp
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 Envirotech Corp filed Critical Envirotech Corp
Publication of FR2313127A1 publication Critical patent/FR2313127A1/en
Application granted granted Critical
Publication of FR2313127B1 publication Critical patent/FR2313127B1/fr
Granted 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
    • B03D1/1493—Flotation machines with means for establishing a specified flow pattern
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Physical Water Treatments (AREA)

Abstract

DISPERSED GAS FLOTATION PROCESS AND APPARATUS A flotation process and machine wherein hydraulic effects are used to disperse gas bubbles throughout a contained liquid body with a free surface. The process comprises ejecting a two-phase fluid into the liquid body with the density and the kinetic energy of the ejected fluid per unit of the contained volume being such as to define a point within the area encompassed by Regions I and II in the graph of Figure 2. The machine utilizes the hydraulic effects to disperse gas bubbles throughout the contained liquid body and includes an ejection device mounted to expel an air-liquid mixture into the liquid body. The ejection device comprises a tubular expansion chamber with an open exit end and an opposite end into which is connected a flat plate to receive a pipe through which liquid is pumped under pressure into the chanber, the chamber being of large crosssection relative to the pipe. Gas is aspirated into the chamber for mixing with the pumped liquid through orifices formed in the flat plate.
FR7616448A 1975-06-02 1976-06-01 GAS DISPERSION FLOTATION METHOD AND MACHINE Granted FR2313127A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58307275A 1975-06-02 1975-06-02
US59590675A 1975-07-14 1975-07-14

Publications (2)

Publication Number Publication Date
FR2313127A1 true FR2313127A1 (en) 1976-12-31
FR2313127B1 FR2313127B1 (en) 1982-02-19

Family

ID=27078724

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7616448A Granted FR2313127A1 (en) 1975-06-02 1976-06-01 GAS DISPERSION FLOTATION METHOD AND MACHINE

Country Status (8)

Country Link
JP (1) JPS51147472A (en)
AU (1) AU501707B2 (en)
CA (1) CA1055622A (en)
DE (1) DE2624543A1 (en)
FR (1) FR2313127A1 (en)
GB (1) GB1537751A (en)
IT (1) IT1061391B (en)
SE (1) SE429500B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0243690A2 (en) * 1986-05-02 1987-11-04 J.M. Voith GmbH Flotation tank or cell

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328456A (en) * 1920-01-20 Pkocess and apparatus j
FR2206985A1 (en) * 1972-11-22 1974-06-14 Saint Gobain Techn Nouvelles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1328456A (en) * 1920-01-20 Pkocess and apparatus j
FR2206985A1 (en) * 1972-11-22 1974-06-14 Saint Gobain Techn Nouvelles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0243690A2 (en) * 1986-05-02 1987-11-04 J.M. Voith GmbH Flotation tank or cell
EP0243690A3 (en) * 1986-05-02 1989-06-14 J.M. Voith Gmbh Flotation tank or cell

Also Published As

Publication number Publication date
JPS51147472A (en) 1976-12-17
SE429500B (en) 1983-09-12
AU1453776A (en) 1977-12-08
FR2313127B1 (en) 1982-02-19
CA1055622A (en) 1979-05-29
DE2624543A1 (en) 1976-12-23
SE7606175L (en) 1977-03-17
AU501707B2 (en) 1979-06-28
GB1537751A (en) 1979-01-04
IT1061391B (en) 1983-02-28

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Legal Events

Date Code Title Description
ST Notification of lapse