Flights, also commonly referred to as "material lifters" or "shovelling plates" are used in rotary dryers and rotary coolers to shower material through the process gas stream.[1] Fixed to the interior of the rotary drum, these fin-like structures scoop material up from the material bed at the bottom of the drum and shower it through the gas stream as the drum rotates. This showering creates a curtain of material spanning the width of the drum, helping to maximize the efficiency of heat transfer.
Depending on the needs of the material and the process, a variety of flight designs and placement patterns are used in order to create a maximum efficiency curtain while still retaining the integrity of the product.[2][3]
References
edit- ^ "Rotary Dryer Design 101: Flight Design". feeco.com. Feeco International. Retrieved 17 February 2021.
- ^ "Rotary Dryer Flights Increase Efficiency of Heat Transfer". FEECO International, Inc. Retrieved 31 January 2013.
- ^ Benhsine. "Influence of flight shape on discharging profiles of granular material in rotarydryer" (PDF). www.researchgate.net. Researchgate. Retrieved 17 February 2021.