Efficient Scrape Board Type Film Evaporator

Efficient Scrape Board Type Film Evaporator

The efficient scrape board type film evaporator is an advanced industrial evaporation system designed for high-viscosity, heat-sensitive, and easily crystallizable liquids. It ensures uniform heat transfer and continuous evaporation while minimizing fouling and degradation. Widely used in chemical, pharmaceutical, food, and oil industries, this evaporator enhances productivity and energy efficiency.

Key Features

The rotary film evaporator has the following unique advantages, which conventional film evaporators cannot match:

1. Minimal Pressure Loss – In the high-efficiency rotary film evaporator, the material flow and secondary vapor flow are in separate channels. The liquid forms a thin film along the evaporator wall, while the secondary vapor exits freely through the central space, resulting in extremely low pressure loss.

2. True Vacuum Operation – Due to minimal resistance from the evaporator to the condenser, the system maintains a high vacuum (up to 750 mmHg), significantly lowering the boiling point of the processed material.

3. High Heat Transfer Coefficient & Evaporation Intensity – Turbulent liquid film reduces thermal resistance, prevents scaling and deposition on the walls, and achieves heat transfer coefficients up to 8000 kJ/h·m²·°C, enabling high evaporation rates.

4. Low-Temperature Evaporation – Maintaining high vacuum lowers the boiling point, making it ideal for heat-sensitive materials.

5. Short Residence Time – The material passes through the evaporator in approximately 10 seconds, minimizing decomposition, polymerization, or degradation during evaporation.

6. Utilization of Low-Grade Steam – Lower boiling points allow the use of lower-temperature heating media, improving overall energy efficiency.

7. Wide Adaptability & Easy Operation – Its unique design allows handling high-viscosity, particulate-containing, heat-sensitive, and easily crystallizable materials. The evaporator operates stably, with low maintenance requirements.

Applications

The efficient scrape board type film evaporator is widely used for:

•  Concentration of chemical, pharmaceutical, and food liquids

•  Processing of oils, resins, and viscous solutions

•  Solvent recovery and purification

•  Serving as high-performance auxiliary equipment in industrial production lines

The efficient scrape board type film evaporator combines reliable performance, energy efficiency, and stable operation, making it an essential tool for modern industrial evaporation processes.