Dewatering of fine-particle slurries using a compound-beach decanter with cake-flow control

Woon Fong Leung, A. H. Shapiro

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

A decanter centrifuge of novel design was developed for the dewatering of fine-solids slurries having micrometer-range particles that form pastelike, flowable, hard-to-dewater cakes. The design combines a compound beach with a cake-flow control structure that allows expressed liquid from the cake in the dry beach region to be returned to the liquid pool while maintaining a high-solids throughput. To provide optimal performance with various operating parameters (i.e., feed rate, centrifugal gravity, pool, differential speed, concentration of feed solids and slurry type), the cake-flow control is adjustable. The second part of the beach is preferably at a zero angle. Tests showed that the new design allows increases in solids dryness and solids throughput.
Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalMinerals and Metallurgical Processing
Volume19
Issue number1
Publication statusPublished - 1 Feb 2002
Externally publishedYes

Keywords

  • Beach decanter
  • Cake-flow control
  • Centrifuge
  • Dewatering
  • Fine particles
  • Slurry

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Chemistry(all)
  • Geotechnical Engineering and Engineering Geology
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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