GB8300639D0 - Flotation apparatus - Google Patents

Flotation apparatus

Info

Publication number
GB8300639D0
GB8300639D0 GB838300639A GB8300639A GB8300639D0 GB 8300639 D0 GB8300639 D0 GB 8300639D0 GB 838300639 A GB838300639 A GB 838300639A GB 8300639 A GB8300639 A GB 8300639A GB 8300639 D0 GB8300639 D0 GB 8300639D0
Authority
GB
United Kingdom
Prior art keywords
flotation
diffuser
size
chamber
produced
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Withdrawn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
GB838300639A
Other versions
GB2114469A (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.)
STWB Inc
Original Assignee
Sterling Drug 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 Sterling Drug Inc filed Critical Sterling Drug Inc
Publication of GB8300639D0 publication Critical patent/GB8300639D0/en
Publication of GB2114469A publication Critical patent/GB2114469A/en
Withdrawn legal-status Critical Current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
    • 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
    • B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
    • 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
    • B03D1/245—Injecting gas through perforated or porous area
    • 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
    • B03D1/1462—Discharge mechanisms for the froth

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Physical Water Treatments (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

A flotation machine consists of a flotation chamber and a rotating gas diffuser. The flotation chamber has a lower mixing chamber and an upper quiescent zone for maximizing float accumulation. The rotating diffuser produces ultra fine bubbles as small as 50 microns in diameter. The size of the bubble diameter can be controlled and produced in any size from less than 50 microns to greater than 10 mm to enable flotation of various materials and/or various sized fractions of materials. The ultra fine bubbles are produced by the diffuser in the same size range as bubbles produced by dissolved air flotation, but without the necessity of pressurizing gas in a first tank followed by depressurizing in a second tank. Since the diffuser is located within the flotation chamber and can vary bubble size, it also provides the advantage of sparged air flotation. This rotating diffuser configuration is a low drag thin disc and, when combined with a specially designed flotation chamber, embodies a flotation machine which produces higher product yields over a wider range of feed size fractions utilizing significantly less energy.
GB08300639A 1982-01-14 1983-01-11 Flotation apparatus Withdrawn GB2114469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA82237A ZA82237B (en) 1982-01-14 1982-01-14 Flotation machine

Publications (2)

Publication Number Publication Date
GB8300639D0 true GB8300639D0 (en) 1983-02-09
GB2114469A GB2114469A (en) 1983-08-24

Family

ID=25575865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08300639A Withdrawn GB2114469A (en) 1982-01-14 1983-01-11 Flotation apparatus

Country Status (6)

Country Link
JP (1) JPS58180250A (en)
AU (1) AU554801B2 (en)
CA (1) CA1211871A (en)
GB (1) GB2114469A (en)
SE (1) SE8300137L (en)
ZA (1) ZA82237B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7438809B2 (en) 2005-02-02 2008-10-21 Petreco International Inc. Single-cell mechanical flotation system
GB2423734B (en) * 2005-03-03 2007-02-07 Yorkshire Water Services Ltd Dissolved gas flotation system and nozzle assembly
US8029668B2 (en) 2006-07-20 2011-10-04 CCS Energy Services, LLC Fluid treatment device and method
TWI580778B (en) 2007-06-19 2017-05-01 再生海藻能源公司 Process for microalgae conditioning and concentration
DE102015208694A1 (en) 2015-05-11 2016-11-17 Akvolution Gmbh Apparatus and method for generating gas bubbles in a liquid
EP3655145A4 (en) * 2017-07-17 2021-04-07 Tunra Ltd. An apparatus and method of feeding a feed slurry into a separating device

Also Published As

Publication number Publication date
SE8300137L (en) 1983-07-15
CA1211871A (en) 1986-09-23
AU554801B2 (en) 1986-09-04
SE8300137D0 (en) 1983-01-12
JPS58180250A (en) 1983-10-21
ZA82237B (en) 1982-12-29
GB2114469A (en) 1983-08-24
AU1006683A (en) 1983-07-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)