Centrifugal Screw Film Evaporator

Centrifugal Screw Film Evaporator

Overview
Screw blade film evaporators are a type of evaporation and distillation equipment that utilize high-speed rotation to distribute liquids into a uniform film for evaporation or distillation. They can also perform deodorization, degassing reactions, as well as heating and cooling unit operations. They are widely applicable in industries such as food, light industry, petrochemical, chemical, and environmental protection.

Performance and Features
       This equipment features a centrifugal sliding groove rotor, capable of forming a film even at low flow rates. The adhered sediment in the wall surface of the drum's evaporative section can be quickly removed by the moving scraper. Compared to a scraper evaporator with fixed gaps, the evaporation capacity can be increased by 40-69%. It possesses the following performance and characteristics:

Features:

1. High thermal conductivity, large evaporation capacity, with evaporation intensity up to 200 kg/m²·hr, and high thermal efficiency.
2. Short material heating time, approximately 5 to 10 seconds, and operates under vacuum, beneficial for heat-sensitive materials. Ensures no decomposition of various components, guaranteeing product quality.
3. Wide adaptability to viscosity range; can handle both high and low viscosity materials; material viscosity can reach up to 100,000 centipoise (CP).
4. Changing the scraper groove rotation direction can adjust the material's residence time in the evaporator.
5. The inner wall of the evaporator section is precision bored and polished, making the surface less prone to scaling and fouling.
6. Easy to operate, with simple product parameter adjustments. Under sealed conditions, it can automatically maintain continuous production.
7. The equipment occupies a small footprint, features a simple structure, is easy to maintain, and clean.

Key Technical Parameters