Screw Film Evaporator

Product Overview

Screw blade film evaporators are evaporative/distillation equipment that utilize high-speed rotation to distribute liquids into a uniform film for evaporation or distillation. They are also capable of deodorization, de-bubbling reactions, and unit operations such as heating and cooling. Suitable for industries such as food, light industry, petrochemicals, and chemical processing.

Performance and Features

This equipment features a centrifugal sliding groove rotor, capable of forming a film even at low flow rates. The adhered sludge in the inner surface of the drum's evaporating section can be rapidly removed by the movable scraper. Compared to a fixed gap scraper evaporator, its evaporation capacity can be increased by 40-69%. It boasts the following performance and features:

1. High thermal conductivity, large evaporation capacity, with evaporation intensity up to 200KG/M2·HR, and high thermal efficiency.

2. Material heating time is short, approximately 5 to 10 seconds, and operates under vacuum conditions, benefiting heat-sensitive materials. It ensures that all components remain undecomposed, guaranteeing product quality.

3. Wide range of viscosity adaptability, capable of handling 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 cylinder has been precision bored and polished, making the surface less prone to coking and scaling.

6. Easy to operate, with simple product specification 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.

Technical Specifications