NO302157B1 - Flotation device for ore preparation - Google Patents

Flotation device for ore preparation

Info

Publication number
NO302157B1
NO302157B1 NO942500A NO942500A NO302157B1 NO 302157 B1 NO302157 B1 NO 302157B1 NO 942500 A NO942500 A NO 942500A NO 942500 A NO942500 A NO 942500A NO 302157 B1 NO302157 B1 NO 302157B1
Authority
NO
Norway
Prior art keywords
froth
channel
lead
zinc
drain
Prior art date
Application number
NO942500A
Other languages
Norwegian (no)
Other versions
NO942500D0 (en
NO942500L (en
Inventor
Jan-Erik Johansson
Leif Johansson
Original Assignee
Johansson Jan Erik
Leif Johansson
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 Johansson Jan Erik, Leif Johansson filed Critical Johansson Jan Erik
Publication of NO942500D0 publication Critical patent/NO942500D0/en
Publication of NO942500L publication Critical patent/NO942500L/en
Publication of NO302157B1 publication Critical patent/NO302157B1/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
    • B03D1/02—Froth-flotation processes
    • 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
    • B03D1/08—Subsequent treatment of concentrated product
    • B03D1/082—Subsequent treatment of concentrated product of the froth product, e.g. washing
    • 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
    • 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
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor

Abstract

A flotation apparatus contains a lower portion of pulp and an upper portion of froth which drains over an upper horizontal edge of the apparatus. When the ore contains lead and zinc, lead contaminated with zinc will drain off. The object of the invention is to increase the lead content in the froth drained off. This is achieved by allowing the froth to drain upwardly through a channel, preferably one having rectangular cross section and having an angle of inclination less than 90 DEG to the surface of the froth. The froth is also spayed before it leaves the channel, with at least one jet of water directed towards the part of the channel wall located furthest away in relation to the drainage edge of the channel.
NO942500A 1992-02-03 1994-07-01 Flotation device for ore preparation NO302157B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9200280A SE508704C2 (en) 1992-02-03 1992-02-03 Device at flotation apparatus
PCT/SE1993/000079 WO1993014876A1 (en) 1992-02-03 1993-02-02 Flotation apparatus for concentrating ores

Publications (3)

Publication Number Publication Date
NO942500D0 NO942500D0 (en) 1994-07-01
NO942500L NO942500L (en) 1994-07-01
NO302157B1 true NO302157B1 (en) 1998-02-02

Family

ID=20385175

Family Applications (1)

Application Number Title Priority Date Filing Date
NO942500A NO302157B1 (en) 1992-02-03 1994-07-01 Flotation device for ore preparation

Country Status (5)

Country Link
EP (1) EP0725684A1 (en)
FI (1) FI943601A (en)
NO (1) NO302157B1 (en)
SE (1) SE508704C2 (en)
WO (1) WO1993014876A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281521B (en) * 1993-09-06 1997-04-09 Supaflo Tech Pty Ltd Membrane washing apparatus for flotation device
DE19905439C2 (en) * 1999-02-10 2001-01-25 Voith Sulzer Papiertech Patent Process for removing solids from an aqueous paper fiber suspension
FI115447B (en) * 2002-03-18 2005-05-13 Outokumpu Oy Flotation plant and method
US6793079B2 (en) * 2002-11-27 2004-09-21 University Of Illinois Method and apparatus for froth flotation
WO2010135760A1 (en) * 2009-05-26 2010-12-02 Newcastle Innovation Limited Improved method and apparatus for froth flotation in a vessel with agitation
CN102179309A (en) * 2010-12-27 2011-09-14 昆明理工大学 Foam controlling and flotation method for zinc oxide ore

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI78628C (en) * 1987-10-07 1989-09-11 Outokumpu Oy FLOTATIONSMASKIN.

Also Published As

Publication number Publication date
NO942500D0 (en) 1994-07-01
SE9200280L (en) 1993-08-04
FI943601A0 (en) 1994-08-02
EP0725684A1 (en) 1996-08-14
SE508704C2 (en) 1998-10-26
WO1993014876A1 (en) 1993-08-05
NO942500L (en) 1994-07-01
FI943601A (en) 1994-08-02
SE9200280D0 (en) 1992-02-03

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Legal Events

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Free format text: LAPSED IN AUGUST 2002