Minimum and Full Fluidization Velocity for Alumina Used in the Aluminum Smelter

International Journal of Engineering Business Management. 2011;3(4 ) DOI 10.5772/50943

 

Journal Homepage

Journal Title: International Journal of Engineering Business Management

ISSN: 1847-9790 (Online)

Publisher: SAGE Publishing

LCC Subject Category: Technology: Engineering (General). Civil engineering (General) | Social Sciences: Industries. Land use. Labor: Management. Industrial management: Technological innovations. Automation

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML

 

AUTHORS

Paulo Douglas S. de Vasconcelos
André L. Amarante Mesquita

EDITORIAL INFORMATION

Double blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 15 weeks

 

Abstract | Full Text

Fluidization is an engineering unit operation that occurs when a fluid (liquid or gas) ascends through a bed of particles, and these particles get a velocity of minimum fluidization enough to stay in suspension, but without carrying them in the ascending flow. As from this moment the powder behaves as liquid at boiling point, hence the term “fluidization”. This operation is widely used in the aluminum smelter processes, for gas dry scrubbing (mass transfer) and in a modern plant for continuous alumina pot feeding (particles’ momentum transfer). The understanding of the alumina fluoride rheology is of vital importance in the design of fluidized beds for gas treatment and fluidized pipelines for pot feeding. This paper shows the results of the experimental and theoretical values of the minimum and full fluidization velocities for the alumina fluoride used to project the state of the art round non‐metallic air‐fluidized conveyor of multiples outlets.