How does tray dryer work?
The basic working principle of this incredible machine is the continuous circulation of hot air. In the tray dryer, moisture is removed from the solids that are placed in the tray by a forced convectional heating. The moist air is removal is conducted partially but in a simultaneous fashion.
What is tray dryers?
Tray drying is a batch process used to dry materials that are liquid or wet cake. The input materials are batched, placed into trays and loaded into AVEKA’s overhead ovens for drying. Tray drying works well for material that requires more gentle processing or cannot be atomized in an air stream due to viscosity.
What is steam tray dryer?
Designed for uniform circulation of hot air in the drying chamber. Electrical /Steam heating mode. All air tray dryer have a 20 micron profiler washable at the inlet and a manually infinite adjustable damper at the outlet. Trolley is provided in the dryers to accommodate trays in it.
What are the advantages of tray dryer?
Advantages of Tray Dryer:
- Each batch is handled as a separate entity.
- It’s more efficient in fuel consumption.
- It’s operated batch-wise.
- It’s simple to use.
- It provides tendency to over-dry the lower trays.
- It requires little labor costs – merely load and then unload.
What is the principle of FBD?
Fluid bed dryers work on the principle of fluidization, a process where a material is converted from a static solid-like state to a dynamic fluid-like state. In this process, hot gas or air is introduced through a perforated distribution plate into the area holding the material.
What is drying rate curve?
Drying curve • Drying curve is the plot of the drying rate Φ or N versus the remaining water content X. Water content X is expressed as kg of water per kg of dry matter. Drying process of a material can be described as a series of steps in which drying rate plays a key role.
What is the difference between FBP and FBD?
Foreign Bill Discounting (FBD) The only difference between FBP and FBD is that it is extended under usance bills· which have been accepted by the LC issuing bank or the importer for payment at determinable future date.
How is FBD capacity calculated?
Flow rate = Velocity x Area of cross section. Total capacity required = 884 / 0.8 = 1105 m3/hr = 651 CFM.
How does a rotary dryer work?
Rotary dryers work by tumbling material in a rotating drum in the presence of a drying air. As the drum rotates, lifting flights pick up the material and drop it through the air stream in order to maximize heat transfer efficiency.