Airflow spray drying method:
① Principle: Wet material enters the dryer simultaneously with heated natural air through a conveyor, and the two are completely mixed. Due to the large heat exchange area, evaporation and drying can be achieved in a short period of time. The dried finished product is discharged from the cyclone separator, and a small amount of fly ash is collected by the cyclone or bag filter. The Q airflow dryer operates under negative pressure, and materials do not pass through the fan; QG airflow drying is a positive pressure operation, where materials are crushed by a fan; The FG airflow dryer is of the exhaust gas circulation type; JG type airflow dryer is an enhanced airflow dryer that integrates flash drying and airflow drying. It is a new type of drying equipment designed by our factory according to user requirements. The parallel flow, counter flow, and mixed flow types are classified according to the direction of motion between the hot air and the drying particles in the drying chamber. Parallel flow patterns are commonly used in milk. And the flow pattern can be dried at a higher intake temperature without affecting product quality. Airflow drying applications.
a. Advantages and disadvantages of horizontal parallel flow airflow drying equipment.
b. Parallel flow pattern vertical descent
c. Mixed flow vertical descent.
d. Vertical ascending concurrent flow pattern