The Tray Dryer is an educational system designed for the study of industrial solid drying processes in chemical engineering applications, unit operations, and process technologies.
The unit reproduces one of the most widely used industrial methods for drying solid materials through the controlled passage of hot air over trays containing wet material. This allows students to understand the operation of drying processes used in the chemical, pharmaceutical, and food industries.
The system consists of a drying tunnel equipped with an axial fan and electric heating elements for air heating. The drying chamber is accessible via a transparent door that allows for direct observation of the material’s behavior during the process.
The dryer includes a series of suspended trays connected to an integrated scale installed at the top of the plant. This configuration allows for continuous monitoring of the product’s moisture loss during experimental tests. The total capacity of the trays is approximately 3.5 kg of solid.
The inlet air temperature can be adjusted by varying the flow rate via an inverter, while the power of the electric heating elements is controlled through a Thyristor system. Students can therefore analyze different operating conditions and industrial drying parameters.
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