Efficient rotating thin film evaporator

Overview

The GXZ series high-efficiency rotating thin film evaporator is a new type of high-efficiency evaporator that uses a rotating scraper to force film formation and can perform falling film evaporation under vacuum conditions. It has a high heat transfer coefficient, high evaporation intensity, short overcurrent time, and high operational flexibility, especially suitable for evaporation concentration, degassing and desolvation, and distillation purification of heat sensitive materials, high viscosity materials, and easily crystallized granular materials. Therefore, it has been widely used in industries such as chemical, petrochemical, pharmaceutical, pesticide, daily chemical, food, and fine chemical.
Our company has been manufacturing this type of equipment for many years and has accumulated rich experience in manufacturing and use. For a long time, we have closely integrated with customers' production reality and market demand to meet their process requirements, select reasonable and suitable structures, and ensure superior and reliable manufacturing quality. We have continuously improved our tooling equipment, testing methods, and product design, and have achieved remarkable results. Our technical level and product quality are at the leading level in China.

feature

1. Minimal pressure loss
In an efficient rotating thin film evaporator, the material "flow" and the secondary steam "flow" are two independent channels: the material falls down along the inner wall of the evaporator cylinder (forced film formation); The secondary steam emitted from the evaporation surface leaves the evaporator almost unobstructed from the central space of the cylinder, so the pressure loss (or resistance drop) is minimal.
2. Can operate under true vacuum conditions
Due to the extremely low resistance of the secondary steam from the evaporation surface to the condenser, the evaporation surface on the inner wall of the entire evaporator cylinder maintains a high vacuum degree (up to -750mmHg), which is almost equal to the vacuum degree at the outlet of the vacuum system. Due to the increase in vacuum degree, the boiling point of the processed material is effectively reduced.
3. High heat transfer coefficient, high evaporation intensity
The decrease in boiling point increases the temperature difference with the heat medium; The turbulent liquid film reduces thermal resistance; Simultaneously suppressing material coking and scaling on the wall, and also improving the heat transfer coefficient of the evaporator wall; Therefore, the total heat transfer coefficient of the high-efficiency rotating thin film evaporator can reach up to 8000KJ/h.m²At ℃, its evaporation intensity is very high.
4. Low temperature evaporation
Due to the high vacuum level maintained inside the evaporator, the boiling point of the processed material is greatly reduced, making it particularly suitable for low-temperature evaporation of thermosensitive materials.
5. Short overcurrent time
The overcurrent time of the material in the evaporator is very short, about 10 seconds; For commonly used activity scrapers, there are guiding grooves on the end face of the material being scraped, and the angle of inclination is usually 45 ℃. Changing the angle of inclination can change the flow time of the material. Under the scraping of the scraper, the material spirals down and leaves the evaporation section. Shorten the overcurrent time and effectively prevent the decomposition, polymerization, or deterioration of the product during the evaporation process.
6. Low taste steam can be utilized
Steam is a commonly used heat medium. By reducing the boiling point of the material, the temperature of the heating medium can be lowered while ensuring the same Δ t. Utilizing low-grade steam is beneficial for the comprehensive utilization of energy.
7. Strong adaptability and easy operation
The unique design structure enables the modified product to handle materials with high viscosity, particle content, thermal sensitivity, and easy crystallization that are difficult to handle with conventional evaporators. The rotary thin film evaporator has high operational flexibility, stable operating conditions, and low maintenance workload, making it easy to maintain.

Technical Specifications