Technip Agitated Scraped Surface Dryer (ASSD)—more generally known as an Agitated Thin Film Dryer (ATFD) delivers powerful, energy-efficient drying for high-viscosity, high-solids, and heat-sensitive materials for Process Plant & efficient drying for compliance of ZLD Plant for Industrial Waste Water Application.
Agitated Scraped Surface Dryer is a continuous, indirect heating drying system that uses a rotor with scraping blades to spread and agitate a material into a thin, uniform film on the inner surface of a heated jacketed vessel. Scrapper blades spreading & scrapping the dry solids on the shell side continuously with uniform RPM range between 150-250 RPM
This technology is particularly effective for drying highly viscous, pasty, or heat-sensitive materials that would be difficult to handle in conventional dryers like ATFDs.
Continuous agitation renews the surface area, preventing scaling and promoting uniform heat transfer.
In the ASSD Dryer we handle feed solids from 20% w/w TS to concentrate upto 95% w/w TS based on the nature of effluent and their physical properties. The output from this dryer free flowing solids suitable for bagging and
The ASSD can be performed under vacuum or atmospheric pressure for heat-sensitive or standard products based on the Industrial Application.
The system is widely used across various industries, including:
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