Dewatering mineral and coal fines using the hyperbaric centrifuge

Yoon, R. H., Asmatulu, R., Keles, S., Luttrell, G., Wang, L., Schultz, W. and Franklin, J. (2012). Dewatering mineral and coal fines using the hyperbaric centrifuge. In: Pradip (Conference President), XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, (05959-05968). 24-28 September 2012.

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Name Description MIMEType Size Downloads
Author Yoon, R. H.
Asmatulu, R.
Keles, S.
Luttrell, G.
Wang, L.
Schultz, W.
Franklin, J.
Title of paper Dewatering mineral and coal fines using the hyperbaric centrifuge
Conference name XXVI International Mineral Processing Congress - IMPC 2012
Conference location New Delhi, India
Conference dates 24-28 September 2012
Proceedings title XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings
Journal name 26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth - Conference Proceedings
Place of Publication New Delhi, India
Publisher Technowrites
Publication Year 2012
Sub-type Fully published paper
ISBN 8190171437
9788190171434
Editor Pradip (Conference President)
Start page 05959
End page 05968
Total pages 10
Collection year 2013
Language eng
Abstract/Summary According to the Darcy’s law, filtration rate should increase with increasing pressure drop (ΔP) across a filter cake. In centrifugal filtration, ΔP is created by the free water present on the surface of a filter cake. Thus, ΔP can become negative when the free water disappears from the cake surface, which makes it difficult to achieve low cake moistures. In the present work, we have developed methods of overcoming this problem by either increasing the air pressure inside or applying vacuum outside a centrifuge. Laboratory dewatering tests conducted using these provisions showed that the moistures of various minerals and coal fines can be reduced to the level that can obviate the need for thermal drying. The new concept has been successfully tested both at pilot- and full-scale, which lead to commercial deployment through Decanter Machine, Inc., under the trade name Centribaric® centrifuge.
Keyword Dewatering
Hyperbaric centrifuge
Pressure drop
Darcy’s law
Centribaric® centrifuge
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Chemical Engineering Publications
Official 2013 Collection
 
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Created: Fri, 12 Apr 2013, 14:43:36 EST by Dr Liguang Wang on behalf of School of Chemical Engineering