ATE140882T1 - DEVICE FOR PERFORMING PNEUMATIC FLOTATION - Google Patents

DEVICE FOR PERFORMING PNEUMATIC FLOTATION

Info

Publication number
ATE140882T1
ATE140882T1 AT92108321T AT92108321T ATE140882T1 AT E140882 T1 ATE140882 T1 AT E140882T1 AT 92108321 T AT92108321 T AT 92108321T AT 92108321 T AT92108321 T AT 92108321T AT E140882 T1 ATE140882 T1 AT E140882T1
Authority
AT
Austria
Prior art keywords
sediment
pressure
reduction
gas
pneumatic flotation
Prior art date
Application number
AT92108321T
Other languages
German (de)
Inventor
Rainer Dr Imhof
Original Assignee
Kloeckner Humboldt Deutz Ag
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 Kloeckner Humboldt Deutz Ag filed Critical Kloeckner Humboldt Deutz Ag
Application granted granted Critical
Publication of ATE140882T1 publication Critical patent/ATE140882T1/en

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
    • 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
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor
    • 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
    • B03D1/1431—Dissolved air flotation 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
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1456—Feed mechanisms for the slurry
    • 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

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Water Treatments (AREA)
  • Paper (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Fish Paste Products (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Treatment Of Sludge (AREA)

Abstract

In a device for pneumatic flotation, the gas-treated sediment is conducted via a pipe (16) into the bottom region of the separation cell (10) to a pressure build-up nozzle (19), which as a result of its reduction in cross-section builds up a defined pressure in the gas-treated sediment, which leads to a reduction in size of the gas bubbles. The sediment under elevated pressure is then, prior to entry into the separation vessel, expanded in a pressure reduction chamber (21) which is furnished with sediment outlet nozzles (22). <IMAGE>
AT92108321T 1991-05-22 1992-05-16 DEVICE FOR PERFORMING PNEUMATIC FLOTATION ATE140882T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4116645A DE4116645A1 (en) 1991-05-22 1991-05-22 DEVICE FOR CARRYING OUT A PNEUMATIC FLOTATION

Publications (1)

Publication Number Publication Date
ATE140882T1 true ATE140882T1 (en) 1996-08-15

Family

ID=6432144

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92108321T ATE140882T1 (en) 1991-05-22 1992-05-16 DEVICE FOR PERFORMING PNEUMATIC FLOTATION

Country Status (7)

Country Link
EP (1) EP0514800B1 (en)
AT (1) ATE140882T1 (en)
CS (1) CS154592A3 (en)
DE (2) DE4116645A1 (en)
ES (1) ES2090409T3 (en)
HU (1) HU211098B (en)
PL (1) PL167874B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2491132C1 (en) * 2012-03-01 2013-08-27 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" Pneumatic flotation machine
RU2614170C1 (en) * 2016-05-23 2017-03-23 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" Pneumatic flotation machine
CN117861870A (en) * 2024-03-12 2024-04-12 北矿科技股份有限公司 Flotation equipment and flotation system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2130920A (en) * 1936-07-06 1938-09-20 Mays Mfg Company Inc Memorandum-pad holder for telephones
FR2206985B1 (en) * 1972-11-22 1977-04-22 Saint Gobain Techn Nouvelles
US4338192A (en) * 1978-12-18 1982-07-06 Ingersoll-Rand Company Clarifier bubble generation and distribution nozzle
US4255262A (en) * 1979-03-26 1981-03-10 U.S. Filter Corporation Hydraulic powered mixing apparatus
DE3101221C2 (en) * 1981-01-16 1983-09-22 J.M. Voith Gmbh, 7920 Heidenheim "Facility for foam flotation"
DE3144386C2 (en) * 1981-11-07 1983-12-29 J.M. Voith Gmbh, 7920 Heidenheim Injector flotation apparatus
FR2550469B1 (en) * 1983-08-09 1985-10-04 Alsthom Atlantique MICROBUBBLE INJECTOR
EP0146235A3 (en) * 1983-10-21 1987-02-04 The University Of Newcastle Research Associates Limited Improved flotation method
NL8602243A (en) * 1986-09-05 1988-04-05 Facet Ind B V Separator for mixed liquids - has flotation tanks with liq. and gas supplies in vertical cylindrical case
DE3733583C2 (en) * 1987-10-03 1996-04-18 Fan Engineering Gmbh Device for generating microbubbles from fumigated liquids for the flotation of sludges

Also Published As

Publication number Publication date
PL167874B1 (en) 1995-11-30
DE4116645A1 (en) 1992-11-26
EP0514800A3 (en) 1995-02-22
DE59206835D1 (en) 1996-09-05
CS154592A3 (en) 1992-12-16
ES2090409T3 (en) 1996-10-16
HU9201693D0 (en) 1992-08-28
HUT62827A (en) 1993-06-28
HU211098B (en) 1995-10-30
EP0514800A2 (en) 1992-11-25
EP0514800B1 (en) 1996-07-31
PL294649A1 (en) 1993-01-25

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