Screw-Type Film Evaporator

Screw-Blade Film Evaporator

Product Overview

Screw blade film evaporators are high-efficiency evaporation and distillation equipment that use high-speed rotation to distribute liquids into a uniform film for evaporation or distillation. They can also perform deodorization, de-foaming reactions, as well as heating and cooling unit operations. They are widely applicable in industries such as food, light industry, petrochemicals, environmental protection, and more.

Performance and Features

This equipment utilizes a centrifugal sliding groove rotor, representing a new type of evaporator that can form a film even at low flow rates. The adhered sediment in the inner wall surface of the cylinder's evaporation section can be quickly removed by an adjustable scraper. Compared to a scraper evaporator with fixed gaps, the evaporation capacity can be increased by 40-69%. It boasts the following features and characteristics:

1. High thermal conductivity value, 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, which is beneficial for heat-sensitive materials. It preserves all components from decomposition, ensuring product quality.

3. Wide range of viscosity adaptability; 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 residence time in the evaporator.

5. The inner wall of the evaporator tube body has been precision bored and polished, making the surface less prone to coking and scaling.

6. User-friendly operation, easy to adjust product specifications. Under closed conditions, it can automatically carry out continuous production.

7. The equipment occupies a small footprint, features a simple structure, is easy to maintain, and clean.

Key Technical Parameters

Industry Applications and Operational Unit Examples