EP0277327B1 - Injecteur - Google Patents

Injecteur Download PDF

Info

Publication number
EP0277327B1
EP0277327B1 EP87118744A EP87118744A EP0277327B1 EP 0277327 B1 EP0277327 B1 EP 0277327B1 EP 87118744 A EP87118744 A EP 87118744A EP 87118744 A EP87118744 A EP 87118744A EP 0277327 B1 EP0277327 B1 EP 0277327B1
Authority
EP
European Patent Office
Prior art keywords
pipe
orifice
air
injector according
injector
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
EP87118744A
Other languages
German (de)
English (en)
Other versions
EP0277327A2 (fr
EP0277327A3 (en
Inventor
Peter Schweiss
Hans-Dieter Dörflinger
Werner Cechovsky
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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 JM Voith GmbH filed Critical JM Voith GmbH
Priority to AT87118744T priority Critical patent/ATE86532T1/de
Publication of EP0277327A2 publication Critical patent/EP0277327A2/fr
Publication of EP0277327A3 publication Critical patent/EP0277327A3/de
Application granted granted Critical
Publication of EP0277327B1 publication Critical patent/EP0277327B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B03D1/1412—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
    • B03D1/24—Pneumatic
    • B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type

Definitions

  • the invention relates to an injector according to the preamble of claim 1.
  • Such an injector is known from US 44 77 341.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Nozzles (AREA)
  • Physical Water Treatments (AREA)
  • Accessories For Mixers (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (5)

  1. Injecteur, notamment pour appareils de flottation, comprenant un trajet mélangeur prévu sensiblement dans un tube droit (2), servant à mélanger le liquide avec de l'air aspiré à travers des ouvertures d'aspiration d'air, ainsi qu'un diaphragme (3) placé en amont, servant à imprimer au liquide un mouvement tourbillonnaire initial, et un diffuseur radial (6) prévu à l'extrémité de sortie du tube (2), caractérisé en ce que le diaphragme (3) est un disque perforé présentant une perforation multiple, de préférence symétrique, et en ce que les ouvertures d'aspiration d'air sont des perçages ou fentes (4) pratiqués dans le tube (2), qui sont disposées à une distance en aval du diaphragme (3), considéré dans le sens de l'écoulement, comprise entre 0,2 et 0,5 fois le diamètre que le tube mélangeur (2) présente à cet endroit.
  2. Injecteur selon la revendication 1, caractérisé en ce que le diaphragme (3) présente comme sections de passage, trois à huit trous ronds répartis symétriquement.
  3. Injecteur selon une des revendications 1 à 2, caractérisé en ce que le diamètre du tube mélangeur (2) est d'au moins 16 mm.
  4. Injecteur selon une des revendications 1 à 3, caractérisé en ce que la longueur du tube mélangeur (2), mesurée entre le diaphragme (3) et la sortie (8) du tube mélangeur, est égale à entre 3 et 5 fois le diamètre du tube mélangeur, que ce tube présente dans la région des ouvertures (4) d'aspiration d'air.
  5. Injecteur selon une des revendications 1 à 4, caractérisé par au moins un étranglement prévu dans la conduite d'alimentation en air (9) qui mène aux ouvertures d'air (4).
EP87118744A 1987-02-04 1987-12-17 Injecteur Expired - Lifetime EP0277327B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118744T ATE86532T1 (de) 1987-02-04 1987-12-17 Injektor.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8701636U DE8701636U1 (de) 1987-02-04 1987-02-04 Injektor
DE8701636U 1987-02-04

Publications (3)

Publication Number Publication Date
EP0277327A2 EP0277327A2 (fr) 1988-08-10
EP0277327A3 EP0277327A3 (en) 1990-03-28
EP0277327B1 true EP0277327B1 (fr) 1993-03-10

Family

ID=6804296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118744A Expired - Lifetime EP0277327B1 (fr) 1987-02-04 1987-12-17 Injecteur

Country Status (5)

Country Link
EP (1) EP0277327B1 (fr)
AT (1) ATE86532T1 (fr)
CA (1) CA1326572C (fr)
DE (2) DE8701636U1 (fr)
ES (1) ES2039420T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309918C2 (de) * 1993-03-26 1994-09-15 Voith Gmbh J M Flotationszelle mit einem Injektor
DE102009011046A1 (de) * 2009-02-28 2010-09-02 Voith Patent Gmbh Flotationsvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR663974A (fr) * 1928-11-15 1929-08-28 Appareil pour la préparation des bains carbo-gazeux par l'acide carbonique du commerce et la préparation de toute dissolution continue d'un gaz dans un liquide approprié
US2252076A (en) * 1939-10-31 1941-08-12 Standard Oil Dev Co Fluid mixer
DE3144386C2 (de) * 1981-11-07 1983-12-29 J.M. Voith Gmbh, 7920 Heidenheim Injektorflotationsapparat
DE3614933C1 (de) * 1986-05-02 1987-10-22 Voith Gmbh J M Flotationsbehaelter oder -zelle

Also Published As

Publication number Publication date
EP0277327A2 (fr) 1988-08-10
ES2039420T3 (es) 1993-10-01
DE3784690D1 (de) 1993-04-15
CA1326572C (fr) 1994-01-25
ATE86532T1 (de) 1993-03-15
DE8701636U1 (de) 1987-03-19
EP0277327A3 (en) 1990-03-28

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