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What are the advantages of centrifugal scraper evaporators? May 30, 2018

On the whole, the centrifugal scraper evaporator is a highly efficient evaporator. The device actually evaporates or distills by distributing the liquid as a uniform film at high speeds. In fact, centrifugal blade thin film evaporators can be used not only for evaporation and distillation, but also for deodorization, defoaming, heating, cooling and other unit operations.

 

Due to these excellent properties, the current centrifugal scraper thin film evaporator has been widely used in many industries, such as Chinese and Western medicine, food, light industry, petroleum, chemical, environmental protection and other industries. At the time of operation, the material to be treated is introduced from the feed tube and distributed through the cloth plate in the middle of the shaft. Then, the feed liquid is wiped by the paddles and coated on the heat transfer wall surface, and the film layer is thinned after being heated and evaporated.

 

This is repeated so as to achieve the purpose of evaporation. Centrifugal scraper thin film evaporators show obvious advantages in practical applications:. First of all, the evaporation intensity is high. During the evaporation process, the material generates centrifugal force on the heating surface rotating at a high speed. The centrifugal force generated can reach hundreds or even thousands of times of the gravity. Under such large centrifugal force, the material is on the heating surface. The liquid film formed on the thickness of up to 0.1mm, so the evaporation effect is good, evaporation intensity.

 

Second, during the operation of the centrifugal scraper film evaporator, the material stays in its interior for a shorter period of time. This is because the cone-shaped heating surface produces such large centrifugal force at high speed and the material rapidly flows from the small end of the cone to the outside. The entire process of heating and evaporation takes only 1-2 seconds. In addition, the required temperature for evaporation is low, allowing the evaporation operation to be performed at a lower temperature.

 

In addition, the user can flexibly adjust the centrifugal scraper film evaporator according to actual needs to achieve the desired evaporation effect. Not only that, the centrifugal scraper thin film evaporator also has clean and high efficiency characteristics, avoids the friction between the scraper and the heating surface, eliminates the pollution caused by the scraper wear, and thus can ensure the cleanliness of the evaporation material itself.

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