WFD Series
Dries filter cakes and wet solids in seconds, carrying the product in a stream of hot air. Small footprint, continuous operation, and the lowest investment of the three when the product breaks up well.
The wet solid is broken up and carried by the hot air stream: surface moisture leaves in seconds.
The wet product enters the drying duct and is immediately carried by a high-velocity stream of hot air. At the same time a disintegrator breaks up lumps and exposes the whole surface of the solid to the air.
Heat transfer is intense and surface moisture evaporates within a few seconds. Because residence time is so short, the product itself stays cool even with hot inlet air.
The powder is then separated from the air in cyclones and a bag filter. Flash drying fits where moisture is mostly on the surface; when the water is bound inside the particle, a longer residence time is usually needed.
Lithium carbonate and hydroxide off filtration, dried in a continuous line.
Chlorides, sulphates and carbonates from crystallisation or centrifuges.
Corn, cassava and wheat starch, with temperature control to avoid gelatinisation.
Fine mineral products that demand constant colour and particle size.
Caseinates, glutens and animal or vegetable by-products.
Process filter cakes that become product instead of waste.
It works when the moisture is mostly on the surface and the solid breaks up well. If the water is bound inside the particle, seconds are not enough and a rotary dryer is the way.
A flash dryer dries in seconds and takes little floor space; a rotary dryer works with long residence times and tolerates coarse or abrasive products. Inlet moisture, particle size and abrasiveness decide which fits.
No. Since contact time is seconds and evaporation cools the particle, the product leaves well below the inlet air temperature.
With the product data and the capacity you are after we answer within 24 business hours, with a first technical assessment of the line that fits your plant.