Continuous drying of fine and ultrafine sands in a fountain confined conical spouted bed
The use of spouted beds for batch drying has already been approached in the literature, in which the design of internal devices and aspects related to energy efficiency have been investigated, but there is hardly any information on continuous drying. This paper analyses the performance of a fountain...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad del País Vasco |
| Repositorio: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/75272 |
| Acceso en línea: | http://hdl.handle.net/10810/75272 |
| Access Level: | acceso abierto |
| Palabra clave: | Conical spouted bed Drying Fine sand Ultrafine sand Fountain confiner |
| Sumario: | The use of spouted beds for batch drying has already been approached in the literature, in which the design of internal devices and aspects related to energy efficiency have been investigated, but there is hardly any information on continuous drying. This paper analyses the performance of a fountain confined conical spouted bed in continuous drying of fine and ultrafine sands, whose configuration has been optimized in previous studies. Capacity curves have been established and the influence of operating parameters has been analyzed. Drying capacity is higherwith fine sand,which is explained by the difference in physical properties of the sands. Furthermore, the best use of the energy available is attained with high sand flow rates, which allows reaching energy efficiencies above 95% and 91% for fine and ultrafine sand. This analysis allows predicting the performance of spouted beds in the continuous drying of powder materials in large scale conditions. |
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