Agitated Thin Film Dryer (ATFD)

An ATFD is a cutting-edge system designed to dry liquids, slurries, or pastes into solid powder or f lakes. It works by spreading the material into a thin layer on a heated surface, where it is continuously stirred for efficient drying. This makes it ideal for heat-sensitive materials and industries like pharmaceuticals, chemicals, and food processing.

How It Works:

  1. Material Input: The liquid, slurry, or paste is fed into the dryer.
  2. Thin Film Formation: The material is spread into a thin layer on a heated surface using rotating blades or wipers.
  3. Agitation: The blades keep the material moving, preventing it from sticking and ensuring even drying.
  4. Heat Transfer: The heated surface evaporates moisture from the thin film quickly and efficiently.
  5. Dry Product Collection: The dried material is scraped off the surface and collected as powder or flakes.
  6. Vapor Removal: The evaporated moisture is safely removed through a vapor outlet.


Benefits:

  • Efficient Drying: Rapid evaporation due to the thin film and continuous agitation.
  • Handles Heat-Sensitive Materials: Gentle drying without damaging delicate products.
  • Self-Cleaning: The rotating blades prevent buildup, reducing maintenance.
  • Energy-Saving: Optimized heat transfer minimizes energy consumption.
  • Compact Design: Takes up less space compared to other drying systems.
  • Versatile: Suitable for liquids, slurries, and pastes.

 

Applications:

  • Pharmaceuticals: Drying medicines and active ingredients.
  • Food Industry: Producing powders like instant coffee or soup mixes.
  • Chemicals: Drying dyes, pigments, and specialty chemicals.
  • Wastewater Treatment: Converting sludge into dry solids.


Why Choose an ATFD?

  • Advanced Agitation Technology: Ensures uniform drying and prevents sticking.
  • Customizable Designs: Tailored to meet specific industry needs.
  • Durable and Reliable: Built for long-term performance.
  • Eco-Friendly: Reduces waste and energy use.


Material of Construction: SS 304 / SS 316 / MS / As per client needs

Process Flow for Agitated Thin Film Dryer (ATFD) System

Material Input → (Liquid, slurry, or paste enters the dryer system)

Thin Film Formation → (Material is spread into a thin layer on a heated surface
using rotating blades or wipers)

Agitation Process → (Blades continuously move the material, preventing sticking
and ensuring uniform drying)

Heat Transfer Mechanism → (Heated surface evaporates moisture from the thin
film rapidly)

Dry Product Collection → (Dried material is scraped off the surface and collected
as powder or flakes)

Vapor Removal System → (Evaporated moisture is removed via vapor outlet)

Final Packaging or Storage → (Dried product is prepared for packaging or further use)

Key Equipment Involved

Feed Pump (Controls material input into the system)

Rotating Wipers / Blades (Ensures uniform thin film formation and agitation)

Heated Surface (Steam or Electrical) (Facilitates moisture evaporation
efficiently)

Vacuum System (Optional) (Enhances drying efficiency by lowering boiling
point)

Scraper Blades (Collects and removes dried material for final processing)

Exhaust System (Safely discharges evaporated moisture)

Final Collection Bins (Stores dried product for packaging or further processing)