1.Drying is divided into multi‐stage temperature control zone, each control sections has a flow air circulation system, each set of the fan can choose to the open or close; Independent waste disposal device; waste volume can be adjusted by hand according to the demand. The temperature of each drying zone can be set separately, saving power and improve efficiency.

2. Thermal insulation materials was selected insulation materials and rock wool so that it can reach the best keep warm effective.

3. Temperature control system adopted temperature control instrument with PID function, and with a dedicated temperature control template, have fast heating speed and high precision of temperature characteristic.