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FI20041519L - Method and apparatus for concentrating thickener bottom stream - Google Patents

Method and apparatus for concentrating thickener bottom stream Download PDF

Info

Publication number
FI20041519L
FI20041519L FI20041519A FI20041519A FI20041519L FI 20041519 L FI20041519 L FI 20041519L FI 20041519 A FI20041519 A FI 20041519A FI 20041519 A FI20041519 A FI 20041519A FI 20041519 L FI20041519 L FI 20041519L
Authority
FI
Finland
Prior art keywords
concentrating
bottom stream
slurry
thickener bottom
thickener
Prior art date
Application number
FI20041519A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20041519A7 (en
FI20041519A0 (en
Inventor
Sami Hindstroem
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Priority to FI20041519A priority Critical patent/FI20041519L/en
Publication of FI20041519A0 publication Critical patent/FI20041519A0/en
Priority to PCT/FI2005/000503 priority patent/WO2006056645A1/en
Publication of FI20041519A7 publication Critical patent/FI20041519A7/en
Publication of FI20041519L publication Critical patent/FI20041519L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention relates to an apparatus and a method of increasing the solid content of slurry in a thickener underflow cone. Thickened slurry is withdrawn from the discharge cone (18) to an auxiliary dewatering device (12) for further thickening the slurry and at least part of the further thickened slurry is returned to the discharge cone.
FI20041519A 2004-11-26 2004-11-26 Method and apparatus for concentrating thickener bottom stream FI20041519L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20041519A FI20041519L (en) 2004-11-26 2004-11-26 Method and apparatus for concentrating thickener bottom stream
PCT/FI2005/000503 WO2006056645A1 (en) 2004-11-26 2005-11-24 Method and apparatus for concentrating thickener underflow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20041519A FI20041519L (en) 2004-11-26 2004-11-26 Method and apparatus for concentrating thickener bottom stream

Publications (3)

Publication Number Publication Date
FI20041519A0 FI20041519A0 (en) 2004-11-26
FI20041519A7 FI20041519A7 (en) 2006-05-27
FI20041519L true FI20041519L (en) 2006-05-27

Family

ID=33515271

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20041519A FI20041519L (en) 2004-11-26 2004-11-26 Method and apparatus for concentrating thickener bottom stream

Country Status (2)

Country Link
FI (1) FI20041519L (en)
WO (1) WO2006056645A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11708286B2 (en) 2020-08-19 2023-07-25 Marmon Industrial Water Llc High rate thickener and eductors therefor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1261913A (en) * 1968-03-21 1972-01-26 English Clays Lovering Pochin Improvements in or relating to the treatment of mineral effluents
SE328552B (en) * 1968-08-16 1970-09-21 Exxon Co
FR2131092A6 (en) * 1971-01-14 1972-11-10 Bergmann Tech
DE3342016C2 (en) * 1983-11-22 1986-11-13 VLT Gesellschaft für verfahrenstechnische Entwicklung mbH, 7000 Stuttgart Device for mixing and settling liquids containing particles
US6340033B2 (en) * 1999-03-15 2002-01-22 Alcan International Limited Transfer of shear-thinning slurries

Also Published As

Publication number Publication date
FI20041519A7 (en) 2006-05-27
FI20041519A0 (en) 2004-11-26
WO2006056645A1 (en) 2006-06-01

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: OUTOKUMPU TECHNOLOGY OY

Free format text: OUTOKUMPU TECHNOLOGY OY