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Titolo:
Wet centrifugal classification of calcite fines - effect of feed size
Autore:
Wang, YM; Forssberg, E; Axelsson, H;
Indirizzi:
Lulea Univ Technol, Dept Chem & Met Engn, Div Mineral Proc, S-97187 Lulea,Sweden Lulea Univ Technol Lulea Sweden S-97187 neral Proc, S-97187 Lulea,Sweden Alfa Laval Separat AB, Ind Div, Res Dev Grp, S-14780 Tumba, Sweden Alfa Laval Separat AB Tumba Sweden S-14780 ev Grp, S-14780 Tumba, Sweden
Titolo Testata:
ADVANCED POWDER TECHNOLOGY
fascicolo: 3, volume: 12, anno: 2001,
pagine: 393 - 412
SICI:
0921-8831(2001)12:3<393:WCCOCF>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Keywords:
classification; centrifuge; calcite; fine particles; powder;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, YM Lulea Univ Technol, Dept Chem & Met Engn, Div Mineral Proc, S-97187 Lulea,Sweden Lulea Univ Technol Lulea Sweden S-97187 c, S-97187 Lulea,Sweden
Citazione:
Y.M. Wang et al., "Wet centrifugal classification of calcite fines - effect of feed size", ADV POW TEC, 12(3), 2001, pp. 393-412

Abstract

The wet classification of various fine calcite materials (<8, < 12 and < 45 mum) by a disk-stack nozzle centrifuge is presented and the results are discussed with respect to feed size. It has been found that the influences of disk-geometry, G-force and feed rate on the classification performance are not related to feed size. However, the selection of a Split Suitable for an efficient separation depends on the particle size distribution of the feed material. Feed size has an impact on the residence time of particle separation. The results showed that an optimum efficiency can be achieved when a calcite material with a particle size below 12 mum is treated. An excessive amount of fine or coarse calcite particles in the feed affects the efficiency of the classification in the centrifuge. It is also indicated that aneffective classification of calcite fines requires a moderate G-force and high flow rates through a disk section bound by stud spacers in the centrifuge.

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Documento generato il 30/09/20 alle ore 02:20:28