Screw-type Evaporator

Product Overview
Screw blade film evaporators 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, and chemical industries.

Performance and Features
      This equipment features a centrifugal sliding groove rotor, capable of forming a film even at low flow rates. The sediment in the treatment liquid adhered to the inner wall surface of the cylinder's evaporating section can be rapidly removed by an active scraper. Compared to a scraper evaporator with fixed gaps, the evaporation rate can be increased by 40-69%. It possesses the following performance and characteristics:
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, benefiting heat-sensitive materials. Ensures no decomposition of various components, guaranteeing 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's residence time in the evaporator.
5. The inner wall of the evaporator tube body is precision bored and polished, making the surface less prone to scale and sediment buildup.
6. Easy to operate, product specifications are easily adjustable; under sealed conditions, it can automatically conduct continuous production.
7. The equipment has a small footprint, simple structure, easy maintenance, and easy cleaning.

Key Technical Parameters

Application Industries and Example Operating Units