Eliminate fouling shutdowns in the final concentration of viscous products, achieving continuous operation where tubular evaporators fail.
Continuous final concentration of viscous products without fouling, where tubular evaporators fail
The Alfa Flash Evaporator is a plate‑type evaporation system specifically engineered to operate as a final concentrator ("finisher") for products with high solids content, elevated viscosity, or scaling tendency, such as whey concentrates, dairy proteins, fruit extracts, and heat‑sensitive food ingredients.
The system applies the flash evaporation principle combined with extremely high turbulence, preventing boiling directly on the heat‑transfer surface. This design creates a permanent self‑cleaning effect, eliminating fouling‑related shutdowns and enabling stable, continuous operation in applications where conventional tubular evaporators clog.
Main features
Self‑cleaning effect by high shear
The evaporator operates with liquid circulation rates 10 to 100 times higher than traditional systems, generating intense turbulence and shear stress at the plate surface.
Benefit: Continuous mechanical scrubbing prevents fouling and significantly improves clean‑in‑place (CIP) efficiency.
High efficiency with variable‑viscosity fluids
For pseudoplastic products whose apparent viscosity decreases under shear, the high turbulence reduces viscosity during operation.
Benefit: Improved heat‑transfer efficiency, lower pumping power requirements, and reduced electrical consumption.
Ideal as a final concentrator (finisher)
The Alfa Flash Evaporator tolerates suspended solids and early crystallization phenomena that typically cause plugging in other evaporator designs.
Benefit: Reliable final‑stage concentration at high solids levels without unplanned stoppages.
Preservation of product thermal integrity
By avoiding direct boiling on metallic surfaces, the risk of burn‑on is eliminated.
Benefit: Protection of organoleptic and functional properties in concentrates of whey, proteins, fruits, and other heat‑sensitive products.
The Alfa Flash Evaporator delivers robust final concentration, superior product quality, and maximum plant availability, making it the preferred solution for demanding dairy and whey applications.
Main Features and Advantages
Self-Cleaning Effect by High Shear: Liquid circulation rates 10 to 100 times greater than other systems generate extreme turbulence and high shear stress at plate walls, creating a continuous scrubbing effect that prevents fouling.
Flash Boiling — Not on Metallic Surface: The product is heated under pressure within the plate channel, preventing direct boiling on the heat-transfer surface. Actual evaporation occurs instantaneously upon discharge into the cyclonic separation vessel.
Ideal as Final Concentrator (Finisher): Its ability to handle suspended solids and incipient crystallization phenomena makes it the optimal solution for the final evaporation stage where tubular systems fail and clog.
Efficiency with Pseudoplastic Fluids: For products whose viscosity decreases under shear, the high turbulence reduces apparent viscosity during operation, improving heat-transfer efficiency and reducing pumping power.
