Screw-Type Evaporator (Centrifugal Screw Film Evaporator)

Overview
Screw blade film evaporators utilize high-speed rotation to distribute liquids into a uniform film for evaporation or distillation. They can also be used for deodorization, de-bubbling reactions, as well as heating and cooling unit operations. They are applicable in industries such as food, light industry, petrochemical, environmental protection, and more.

Performance and Features
This equipment utilizes a centrifugal sliding groove rotor, which is a new structure evaporator overseas. Even at low flow rates, it can form a film. The sediment in the treatment liquid adhering to the inner surface of the drum's evaporation 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 boasts the following performance and features:
1. High thermal conductivity, with a large evaporation capacity, achieving an evaporation intensity of up to 200 kg/m²·hr, and high thermal efficiency.
2. Short material heating time, approximately 5 to 10 seconds, and operates under vacuum conditions, which is more beneficial for heat-sensitive materials. It ensures that various components do not undergo any decomposition, thereby guaranteeing product quality.
3. Wide range of adaptability to viscosity changes; capable of handling both high and low viscosity materials, with a material viscosity that 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 section cylinder has been precision bored and polished, making it resistant to scaling and fouling.
6. Easy to operate, with simple adjustment of product specifications. Under sealed conditions, it can automatically carry out continuous production.
7. The equipment occupies minimal floor space, features a simple structure, is easy to maintain, and clean.

Technical Specifications