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Comessa - Flash Dryers
FromComessa S.A.
Flash drying works on the principle of pneumatic transport using hot air. Wet product is introduced into a high velocity air stream through a special Venturi feeder.
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- Highly turbulent airflow generates an intense gas-solid thermal exchange and disaggregates the product. This allows a rapid evaporation in a few seconds residence time.
- Rapid drying process avoids overheating of product allowing the use of high temperature drying gases. At dryer outlet dried product is recovered by means of a gas-solid separator (cyclone, bag filter, etc.). Partial recycling of dried product in wet material can be considered in case of sticky product
- This process is particularly suitable for fine products or filter cakes.
- Low maintenance
- Simple process
- High thermal efficiency
- Highly reactive process control
- Short start-up and shut-down sequences
- Reduced foot-print layout