What are the various Advantages of Wiped or Thin Film Evaporator?

Heat-sensitive or viscous commodities are concentrated, distilled, stripped, dehydrated, and deodorised using the Wiped/Thin Film Evaporator (WFE/TFE). The machine can handle a wide range of feed compositions, from 1% to over 95% concentration. WFE offers a number of advantages, which are detailed in the table below. The operation is ongoing in a single pass, with self-cleaning continuous contact wipers producing and renewing the thin film. This method boosts product production while preventing residue and colour buildup. It contains an optional built-in condenser that lowers pressure loss while preserving the vacuum.


Ablaze Glass Works is one of the most remarkable and noted suppliers of thin film evaporators in India.

Advantages:

●    Slotted Wiper Blades:

A unique wiper blade spreads the material like a thin film over the wall for better heat transfer. Blades push the product down from the heated wall within seconds to reduce residence time.

●    Low Rotor Speed:

Because of the high heat transfer coefficient of the WFE design, lower rotor speeds are required, extending the mechanical seal, wiper blades' life of service as well as drive bearing significantly.

●    No Bottom Steady Bearing:

The WFE rotor is completely supported by the bearing assembly as well as the top drive, which is fastened to the WFE top cover and main shell flange, unlike a normally fixed clearance evaporator. This is accomplished by employing a sturdy overhung WFE design. There is no need for flux oil because there is no bottom steady bearing, which is critical when the product is non-volatile. 

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●    Low Horsepower Requirements:

The low rotor speed significantly reduces the amount of horsepower required. After comparing to a same-sized clearance evaporator that is fixed, this may lead to significant cost savings.

●    Expandable WFE Sizes:

For chosen models, additional thermal sections can be installed above the original thermal section at your plant site to increase capacity for existing WFEs. It's Easy to Remove Rotor Any size WFE rotor can be removed and reinstalled in 30 minutes or less. Remove the rotor from the shell as a single unit after disconnecting the motor wires, feed line, and bolts. This makes inspection, maintenance, and cleaning a breeze.

●    Internal Condenser:

Because the WFE design does not include a bottom stable bearing, an internal condenser can be used. WFEs with inside condensers have less pressure loss than external condensers, enabling high-vacuum operation. Superior separations, complete condensation, and sub-cooling are achieved because of the high vacuum and proximity of the condenser surface area to the heated wall.

●    Efficient Entrainment Separators:

Entrainment separators with a whole length constructed specifically for normal and high-vacuum operation successfully remove entrained droplets from the vapour stream, increasing the purity of the distillate output.

●    High-Vacuum Operation:

A high-vacuum design of WFE/TFE that can work in as little as one micron of vacuum (.001 torr). The use of a deep vacuum lowers operating temperatures and prevents thermal degradation. 

Ablaze Glass Works is one of the excellent as well as most renowned glass vessel manufacturers in India.

●    Bottoms Outlet:

The WFE bottom head can be heated for viscous materials with high melting temperatures, and extruder blades can be employed to aid discharge of heavy material mechanically.

●    Low Maintenance:

Depending on the application, any WFE manufacturing company would generally recommend only one 1-2 day downtime per year for inspection and maintenance. Mechanical seals are built to last a long time. There is no need for costly maintenance because there is no bottom bearing.

●    Unique Drive Assembly:

Our WFE drive assembly allows clients to easily access the mechanical seal for replacement without having to remove the entire rotor assembly, eliminating downtime and unnecessary overhead crane costs.

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