DE60031344D1 - Process and device for separation by means of pneumatic flotation - Google Patents

Process and device for separation by means of pneumatic flotation

Info

Publication number
DE60031344D1
DE60031344D1 DE60031344T DE60031344T DE60031344D1 DE 60031344 D1 DE60031344 D1 DE 60031344D1 DE 60031344 T DE60031344 T DE 60031344T DE 60031344 T DE60031344 T DE 60031344T DE 60031344 D1 DE60031344 D1 DE 60031344D1
Authority
DE
Germany
Prior art keywords
annular channel
pulp
separation
pneumatic flotation
nozzle
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
DE60031344T
Other languages
German (de)
Other versions
DE60031344T2 (en
Inventor
Rainer Dr Imhof
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.)
Maelgwyn Mineral Services Ltd
Original Assignee
Maelgwyn Mineral Services Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10860894&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60031344(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maelgwyn Mineral Services Ltd filed Critical Maelgwyn Mineral Services Ltd
Publication of DE60031344D1 publication Critical patent/DE60031344D1/en
Application granted granted Critical
Publication of DE60031344T2 publication Critical patent/DE60031344T2/en
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
    • B03D1/1418—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
    • B03D1/24—Pneumatic
    • B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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)
  • Paper (AREA)
  • Fish Paste Products (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

A separating device (10) especially for use in a pneumatic flotation system comprises an annular channel (18), at least one nozzle (16) for introducing aerated pulp substantially horizontally and tangentially into the annular channel (18), froth extraction means (26) for the removal of separated froth from the annular channel (18), and pulp extraction means (24) for the removal of separated pulp from the annular channel (18), the at least one nozzle (16) being configured so that the aerated pulp introduced into the annular channel (18) rotates therein with centrifugal forces of between 5 and 20 ms<-2>. <IMAGE>
DE60031344T 1999-09-14 2000-08-31 Process and device for separation by means of pneumatic flotation Expired - Lifetime DE60031344T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9921716.8A GB9921716D0 (en) 1999-09-14 1999-09-14 Pneumatic flotation separation device
GB9921716 1999-09-14

Publications (2)

Publication Number Publication Date
DE60031344D1 true DE60031344D1 (en) 2006-11-30
DE60031344T2 DE60031344T2 (en) 2007-05-24

Family

ID=10860894

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60031344T Expired - Lifetime DE60031344T2 (en) 1999-09-14 2000-08-31 Process and device for separation by means of pneumatic flotation

Country Status (5)

Country Link
EP (1) EP1084753B1 (en)
AT (1) ATE342772T1 (en)
DE (1) DE60031344T2 (en)
ES (1) ES2274766T3 (en)
GB (1) GB9921716D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002074440A1 (en) * 2001-03-19 2002-09-26 Maelgwyn Mineral Services Limited Pneumatic flotation separation device
WO2006081611A1 (en) 2005-02-01 2006-08-10 The University Of Newcastle Research Associates Limited Method and apparatus for contacting bubbles and particles in a flotation separation system
CN112723454B (en) * 2020-12-04 2022-09-06 成都市蜀科科技有限责任公司 Efficient jet air flotation machine for sewage treatment
CN113976333B (en) * 2021-10-25 2022-07-22 中南大学 Pretreatment method of high-magnetic pyrite-containing type copper ore

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR86129E (en) * 1964-07-08 1965-12-17 Kloeckner Humboldt Deutz Ag Tank for the foam flotation of mixtures of fine-grained materials, in particular minerals
DE2738782C2 (en) * 1977-08-27 1979-07-12 J.M. Voith Gmbh, 7920 Heidenheim Flotation device for removing printing ink
CH665962A5 (en) * 1985-07-19 1988-06-30 Escher Wyss Gmbh GASIFICATION DEVICE FOR A FLOTATION DEVICE AND ITS USE.
FR2730941B1 (en) * 1995-02-23 1997-05-16 Gonzalez Pierre CELL FOR THE FLOTATION TREATMENT OF A LIQUID MEDIUM
DE19728393C2 (en) * 1997-07-03 1999-08-05 Voith Sulzer Stoffaufbereitung Process and plant for removing contaminants from an aqueous fiber suspension

Also Published As

Publication number Publication date
ATE342772T1 (en) 2006-11-15
EP1084753A3 (en) 2002-01-09
GB9921716D0 (en) 1999-11-17
EP1084753A2 (en) 2001-03-21
ES2274766T3 (en) 2007-06-01
DE60031344T2 (en) 2007-05-24
EP1084753B1 (en) 2006-10-18

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Legal Events

Date Code Title Description
8363 Opposition against the patent