期刊
CHEMICAL ENGINEERING & TECHNOLOGY
卷 34, 期 1, 页码 81-86出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201000338
关键词
Concurrent flow; Drying; Fertilizer; Rotary dryer
资金
- Fundacao de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG)
- Conselho Nacional de Desenvolvimento (CNPq), Brazil
The present work analyzed aspects of the fluid dynamics of the conventional concurrent dryer equipped with lifting flights and their influence on the performance of a rotary dryer. The drying of granulated fertilizers (GTSP) in a conventional concurrent rotary dryer was experimentally investigated and compared with a modified configuration known as the roto-aerated dryer. The main feature of this new dryer is the presence of an aerated system consisting of a central pipe (encased in the drum) from which a series of mini-pipes lead hot air directly to the particle bed, flowing at the bottom (without flights). The results obtained confirm the superior performance of the roto-aerated dryer due to its more effective gas-particle contact.
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