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Introduction to the performance characteristics of several common spray dryers Aug 29, 2018

The spray dryer can simultaneously achieve the drying and granulation process of the material, which includes several different structures. For example, the pressure spray dryer can use a high pressure of 2-20 MPa to feed the liquid material (filtered liquid material) into a pressure atomizer to atomize into small droplets, and the atomized droplets are in full contact with the hot air. The drying process is completed quickly within -30 seconds, and the finished product of powder or fine particles is obtained by separation.

 

At present, the advanced centrifugal spray dryer on the market is also very popular among users. The machine can spray the liquid into extremely small mist droplets. The liquid and hot air are in parallel contact, and the water evaporates quickly. The product is dried into a finished product in a time, and the finished product is discharged from the bottom of the drying tower and the cyclone separator, and the exhaust gas is discharged by the fan.

 

Another type of airflow spray dryer is very convenient to operate and has a unique drying effect on highly viscous materials. The airflow spray dryer mainly discharges air or water vapor from the nozzle through high speed, and separates the liquid into small droplets by friction, so that it completely contacts with the hot air to form heat exchange, and the whole process does not exceed thirty seconds.

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