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WO2008025680A1 - Cellule de flottation - Google Patents

Cellule de flottation Download PDF

Info

Publication number
WO2008025680A1
WO2008025680A1 PCT/EP2007/058510 EP2007058510W WO2008025680A1 WO 2008025680 A1 WO2008025680 A1 WO 2008025680A1 EP 2007058510 W EP2007058510 W EP 2007058510W WO 2008025680 A1 WO2008025680 A1 WO 2008025680A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulp
container
flotation cell
inlet pipe
cell according
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.)
Ceased
Application number
PCT/EP2007/058510
Other languages
German (de)
English (en)
Inventor
Norbert Becker
Michael Riebensahm
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2008025680A1 publication Critical patent/WO2008025680A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B03D1/24—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
    • B03D1/14—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

Definitions

  • the invention relates to a flotation cell with a top side ⁇ open vat-like container for holding a substantially consists of a liquid and a pulp is formed to be separated particle mixture, wherein an inlet pipe is provided for introducing the pulp into the container.
  • Focotation cells are used, for example, for the extraction of ore for the separation of particle fractions into different fractions.
  • particle mixture is added to the pulp usually with finely divided air bubbles, and the effect utilized that wettable with the liquid phase
  • the object of the invention is to propose a flotation cell which requires a low maintenance and repair effort.
  • a further advantage is that, as a result of the impact of the pulp on the impact element, an intimate thorough mixing of the pulp takes place, so that the use of stirrers can be dispensed with. If air bubbles are contained in the pulp, they are crushed when hitting the baffle plate and dispersed in the pulp.
  • a uniform mixing of the pulp seen over the cross-sectional area of the container is promoted by the fact that the inlet tube is arranged centrally in the container and that at least a lower longitudinal section carrying the discharge opening extends vertically.
  • the impact element has an upwardly curved edge region.
  • the impinged by the pulp side 14a of the edge region is designed aerodynamically, for example, a
  • the axial distance between the outflow opening and the impact element is variable.
  • the speed and thus the energy with which the particles strike the impact element can be adapted to the requirements of the respective particle mixture and also the degree of mixing of the pulp can be influenced.
  • the variability of the genann ⁇ th axial distance is preferably accomplished by means of a height adjustable inlet pipe.
  • the drawing shows a flotation cell 1, which comprises a container 3 having a top-side opening 2 and an inlet tube 4 protruding into the latter.
  • An upper longitudinal section 5 of the container 3 is widened in a funnel shape and is surrounded by a likewise funnel-shaped enlarged collecting container 6.
  • the bottom 7 of the container 3 is also funnel-shaped, wherein at the top of the funnel an outlet 8 is arranged.
  • the inlet pipe 4 is arranged centrally in the container 3 and extends in the vertical direction. In the case of a circular cross-section the container 3, the A ⁇ pipe 4 extending coaxially to the central longitudinal axis 9 of the container 3.
  • flotation cells 1 of the type in question are used for example for the separation of particle mixtures in the ore and are designed for a relatively large throughput. They have for example a height of about 4 m and ei ⁇ ne cross-sectional area of about 9 m 2 .
  • the inlet tube 4, which has a substantially smaller cross-sectional area than the loading ⁇ container 3 ends with arelyströmö réelle 10 in the region of the base 7.
  • axial spacing 12 of the Ausströmöff ⁇ voltage 10 opposite a baffle element 12 is angeord ⁇ net, in plan view, in the outflow direction 13 of the pulp seen circular is formed. It has an upwardly bent edge region 14. Which is acted on by the pulp stream side 14a is curved ge ⁇ flow in a favorable manner. It is part of a torus surface, for example.
  • a central, centrally cut from the central longitudinal axis 15 of the inlet pipe 4 area is designed as upwardly tapering cone 16, more precisely as a circular cone.
  • the ⁇ able impact element 12 can be regarded as a circular channel with a semi-circular cross-section thus ⁇ shaped, with their radially inner walls form the cone sixteenth
  • the baffle element 12 is made of a wear-resistant material, for example of a ceramic material or is coated with such a material. Also suitable is a coating of a wear-resistant rubber-like polymer material or nickel coating with Hartmaterialein Beingn.
  • a particulate ge Gemen ⁇ containing pulp is supplied through the inlet tube 4 to the Bodenbe ⁇ area of the container.
  • the baffle 12 causes, as above already been ⁇ leads that are decelerated at a high speed from the exit ⁇ opening 10 emerging particles and so deflected that it on its way to the opening 2 of the container 3 with an essentially parallel to the central longitudinal axis 9 or to the inner wall of the container 3 extending direction of movement are transported, and thereby act on the container wall only with relatively little abrasive effect.
  • the interaction of the pulp with the impact element 12 also causes an intimate mixing of the pulp liquid with particles and air bubbles.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Paper (AREA)

Abstract

L'invention concerne une cellule de flottation (1) comportant un contenant (3) en forme de cuve, ouvert sur le haut pour la réception d'une pulpe essentiellement composée d'un liquide et d'un amas particulaire à séparer. Au moins un tube d'introduction (4) sert à l'introduction de la pulpe dans le contenant, ledit tube se terminant par une ouverture d'écoulement (10) proche de la base (7) du contenant. Un élément de renvoi (12) disposé en face de l'ouverture d'écoulement, à un espace axial de celle-ci dans le sens d'écoulement de la pulpe, est affecté à ladite ouverture d'écoulement.
PCT/EP2007/058510 2006-08-31 2007-08-16 Cellule de flottation Ceased WO2008025680A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610040938 DE102006040938A1 (de) 2006-08-31 2006-08-31 Flotationszelle
DE102006040938.8 2006-08-31

Publications (1)

Publication Number Publication Date
WO2008025680A1 true WO2008025680A1 (fr) 2008-03-06

Family

ID=38691094

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/058510 Ceased WO2008025680A1 (fr) 2006-08-31 2007-08-16 Cellule de flottation

Country Status (2)

Country Link
DE (1) DE102006040938A1 (fr)
WO (1) WO2008025680A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547535C2 (ru) * 2013-04-24 2015-04-10 Марк Григорьевич Видуецкий Флотационная пневматическая машина
FR3089822A1 (fr) * 2018-12-12 2020-06-19 Suez Groupe Dispositif d’injection de fluide dans un liquide

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1236432B (de) * 1963-07-03 1967-03-16 Beteiligungs & Patentverw Gmbh Flotationszelle
EP0035243A2 (fr) * 1980-03-05 1981-09-09 Bayer Ag Procédé et dispositif de flottation
US5023021A (en) * 1990-03-07 1991-06-11 Conrad Richard H Cartridge venturi

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101221C2 (de) * 1981-01-16 1983-09-22 J.M. Voith Gmbh, 7920 Heidenheim "Einrichtung zur Schaumflotation"
JPH02503882A (ja) * 1988-04-18 1990-11-15 インスティトウト　ゴルノゴ　デラ　シビルスコゴ　オトデレニヤ　アカデミィ　ナウク　エスエスエスエル 浮選機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1236432B (de) * 1963-07-03 1967-03-16 Beteiligungs & Patentverw Gmbh Flotationszelle
EP0035243A2 (fr) * 1980-03-05 1981-09-09 Bayer Ag Procédé et dispositif de flottation
US5023021A (en) * 1990-03-07 1991-06-11 Conrad Richard H Cartridge venturi

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CORDES H: "DIE PNEUMATISCHE FLOTATION - EINE ALTERNATIVE UND ERGAENZUNG ZUR KONVENTIONELLEN FLOTATION. DEVELOPMENT OF PNEUMATIC FLOTATION CELLSTO THEIR PRESENT DAY STATUS", AUFBEREITUNGS TECHNIK, VERLAG FUER AUFBEREITUNG, WIESBADEN, DE, vol. 38, no. 2, February 1997 (1997-02-01), pages 69 - 78,80, XP000679518, ISSN: 0004-783X *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547535C2 (ru) * 2013-04-24 2015-04-10 Марк Григорьевич Видуецкий Флотационная пневматическая машина
FR3089822A1 (fr) * 2018-12-12 2020-06-19 Suez Groupe Dispositif d’injection de fluide dans un liquide
WO2020120536A3 (fr) * 2018-12-12 2020-10-29 Suez Groupe Dispositif d'injection de fluide dans un liquide, procédé de nettoyage dudit dispositif et installation de traitement d'effluent
CN113302161A (zh) * 2018-12-12 2021-08-24 苏伊士集团 将流体喷射入液体的装置、清洁所述装置的方法以及流出物处理设备
US20220080371A1 (en) * 2018-12-12 2022-03-17 Suez Groupe Device for injecting fluid into a liquid, method for cleaning said device, and effluent treatment installation
CN113302161B (zh) * 2018-12-12 2024-01-09 苏伊士集团 将流体喷射入液体的装置、清洁所述装置的方法以及流出物处理设备

Also Published As

Publication number Publication date
DE102006040938A1 (de) 2008-03-20

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