Scope of application and working principle
ZGB type rotating scraper film evaporator is a new type of evaporator that can be made into a film by rotating scraper, and can evaporate down the film under the vacuum condition. It has large heat transfer coefficient, high evaporation intensity, short overcurrent time, large operation flexibility, especially suitable for heat-sensitive materials, high viscosity materials and easy crystallization of materials containing particles of evaporation concentration, degassing desolvation, distillation and purification. Therefore, it is widely used in chemical, pharmaceutical, food, fine chemical and other industries.
Performance and Features
This evaporator adopts centrifugal sliding groove rotor, which is a new structure evaporator in foreign countries at present, it can also form a thin film in the case of small flow, the silt in the treatment liquid attached to the surface of the inner wall of the cylinder body evaporating section can be quickly removed by the movable scraper, compared with the scraper evaporator with fixed gap, the evaporation volume can be increased by 40-69%, it has the following performance and characteristics.
1, high value of heat transfer coefficient, evaporation capacity, evaporation intensity can reach 200kg/m2.hr, high thermal efficiency.
2、Shaking heating time is short, about 5 seconds to 10 seconds, and work under vacuum conditions, more favorable to the thermosensitive materials, to ensure product quality set.
3, to adapt to a wide range of viscosity changes, high and low viscosity materials can be processed, viscosity of square base can be as high as 100,000 cp (cp).
4、Changing safety scraper groove rotation direction, can adjust the material in the evaporator to take care of time.
5、The inner wall of evaporation section simplified by precision filing and polishing treatment, the surface is not easy to produce coking and fouling.
6、Easy to operate, easy to adjust the product index, in closed conditions, can be self-controlled for continuous production.
7, evaporator small footprint, simple structure, convenient maintenance, easy to clean.
Main Technical Parameters