http://www.cnr.it/ontology/cnr/individuo/prodotto/ID83029
Breakage Mechanism Analysis in a Jet Micronizer (Contributo in atti di convegno)
- Type
- Label
- Breakage Mechanism Analysis in a Jet Micronizer (Contributo in atti di convegno) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Alfano G. *; Surracco M. *; Agus M. **; Saba P. ** (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- Il Congresso si è tenuto a Pechino dal 24 al 28 settembre 2008. Il lavoro è stato stampato sul vol.I degli Atti del Congresso (pagg. 417-426), ISBN 978-7-03-022711-9 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- * Dipartimento di Geoingegneria e Tecnologie Ambientali (DIGITA) dell'Università di Cagliari
** Istituto di Geologia Ambientale e Geoingegneria del CNR, Sezione di Cagliari (literal)
- Titolo
- Breakage Mechanism Analysis in a Jet Micronizer (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
- 978-7-03-022711-9 (literal)
- Abstract
- We have investigated the breakage actions of solid particles observed in a new generation fluid energy micronizer being set up at our laboratories. The attention has been focussed in particular on breakage caused by interparticle collision, particle impact against a fixed surface, interparticle attrition and particle against wall of jet mill attrition. We have also studied the influence of grain size distribution, maximum particle size, flow rate and characteristics of the solid to be processed, as well as of flow rate and pressure of injected air on the above mechanism. Lastly, the operating parameters of a dynamic air classifier in closed circuit with the micronizer for recovering the fine fraction and automatically recycling the oversize, have been optimized.
The findings of this investigation have been used to design, build and fine tune a micronizer capable of controlling the top size of a product having average particle size that meets market requirements for fine powders, while keeping power consumption relatively low. (literal)
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