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Characteristics and heating requirements of fine powder pharmaceutical spray dryers Jul 23, 2018

Fine powder pharmaceutical spray dryerss are the most widely used processes in the liquid process forming and drying industry and are best suited for the production of powdered, granular solid products from solutions, emulsions, suspensions and paste liquids. Therefore, spray drying is an ideal process when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must meet exact standards.

  

The air of the fine powder pharmaceutical spray dryers is effectively filtered and heated, and effectively enters the top air distributor of the dryer, and the hot air enters the drying chamber uniformly in a spiral shape. The liquid is sprayed into a very fine misty liquid droplet through a high-speed centrifugal atomizer at the top of the tower body, and is in parallel contact with hot air, and can be dried into a finished product in a very short time. The finished product is continuously discharged from the bottom of the drying tower and the cyclone, and the exhaust gas is vented by the fan.

  

Fine powder pharmaceutical spray dryers features

1. The drying speed of the fine powder pharmaceutical spray dryers is very fast, and the surface area of the liquid is greatly increased after it is atomized. In the hot air flow, it can evaporate 95%-98 in an instant. % moisture, only a few seconds to complete the drying time, especially suitable for the drying of heat sensitive materials.

2. Fine powder pharmaceutical spray dryers has good uniformity, fluidity and solubility, high purity and good quality.

3. The production process of fine powder medicine spray dryer is simplified, and it is easy to control during operation. For liquids with wet content of 40-60% (up to 90% of special materials), it can be dried into powder products once, without pulverization after drying. And screening to reduce production processes and improve product purity. The particle size, bulk density and moisture of the product can be adjusted within a certain range by changing the operating conditions, and the control and management are very convenient.

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