The working principle and characteristics of the spray dryer for Chinese medicine extract

Working principle of spray dryer for Chinese medicine extract:

  The air is filtered and heated by the primary, middle and high three-stage filter and heating device, and enters the hot air distributor on the top of the drying chamber. The hot air passing through the hot air distributor enters the drying chamber evenly in a spiral shape. Pumped to the centrifugal atomizing nozzle installed on the top of the drying chamber, the material liquid is sprayed into very small mist droplets, which greatly increases the specific surface area of the material liquid and the hot air. Small liquid droplets mix with hot air and flow down to sink, instantaneous heat exchange, the water in the material liquid quickly evaporates when heated, and the material liquid is dried into granular products in a very short time, which is separated from the cyclone at the bottom of the tower under the action of wind and gravity It is trapped in the device, and the exhaust gas is discharged to the outside after being dedusted and purified.

Features of spray dryer for Chinese medicine extract:

       1. In order to prevent the sticky wall produced by the physical science department, the equipment is equipped with air sweeping wall and tower wall jacket cooling structure, which effectively prevents the sticky wall coking of the product. Improve product quality and yield.

  2. The unique finished product air delivery system separates the dried product from the hot and humid air in the system in time to avoid the possibility of moisture absorption and agglomeration of the finished product.

  3. The air entering the dryer adopts three-stage air purification.

  4. The quick-opening punching device is adopted, which is suitable for production requirements of multiple varieties.

  5. Material collection adopts two-stage cyclone dust removal device or one-stage cyclone dust removal + wet dust collector.

  6. The volume and configuration of the spray tower are adjusted according to the nature of the physical science to make it more practical.