Estudos fluidodinâmicos e de secagem de fertilizantes em secadores rotatórios concorrentes

Detalhes bibliográficos
Ano de defesa: 2010
Autor(a) principal: Silvério, Beatriz Cristina
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Uberlândia
BR
Programa de Pós-graduação em Engenharia Química
Engenharias
UFU
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: https://repositorio.ufu.br/handle/123456789/15141
Resumo: Drying is an important process that a lot of products were submitted. However, this process is usually very energy-intense and has a large commercial impact on the cost of the final product. The conventional direct rotary dryer consists of equipment widely used in industrial area due to advantages such as, a high processing capacity of a wide variety of materials. This dryer is commonly used to dry and process granular materials, and has application across a wide range of industries like the fertilizer industry. The dryer consists of a rotating cylindrical shell rotated about its axis at a constant speed and slightly inclined to the horizontal. This type of equipment is characterized by the high consumption of energy required to heat the drying air at high temperatures. This work aims to study the aspects of fluid dynamics and fertilizer drying of super-phosphate fertilizer in concurrent direct rotary dryers and compare the performance of the same for other configurations that have been studied by the research group of systems particulated at FEQUI / UFU. The results of this study have values of loading, residence time, drying rate, and the difference between concurrent and countercurrent rotary dryers, working under the same operating conditions, enabling the evaluation of new versions of rotary dryers because of detailed study of conventional configurations. This study also describe a mathematic model to predict the air and solid temperature profiles and the solid moisture profile in a concurrent rotary dryer and compared the simulation results with the experimental data.