1. INTRODUCTION
A dryer solid is a equipment that introducing hot air evaporates the liquid adhered to a solid, removing the wet solid .
Heat transfer occurs by conduction or convection. In the first case, the wet solid is placed in an externally heated vessel, which has an outlet to remove the steam; the vessel often remains under reduced pressure to increase the driving force. In the case of drying by convection, the hot gas is blown onto the surface of the solid wet providing two effects: delivering heat and removing the vapor formed.
The dried solids can be a method performed in continuous or intermittent operation , depending on whether the entire load of material is added at the beginning of the operation (batch method) or if it is added continuously (continuous method).
Heat transfer occurs by conduction or convection. In the first case, the wet solid is placed in an externally heated vessel, which has an outlet to remove the steam; the vessel often remains under reduced pressure to increase the driving force. In the case of drying by convection, the hot gas is blown onto the surface of the solid wet providing two effects: delivering heat and removing the vapor formed.
The dried solids can be a method performed in continuous or intermittent operation , depending on whether the entire load of material is added at the beginning of the operation (batch method) or if it is added continuously (continuous method).