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Different Types of Dryers and Their Applications by jack smith
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Different Types of Dryers and Their Applications |
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Business
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Spray dryer, airstream dryer, fluidized bed dryer and fluidized bed spray granulator are different types of dryers commonly seen in our daily lives.
Drying machine is one of the fastest developed dryers with three conventional atomization methods: rotary atomization, pressure atomization and gas atomization. The feature of rotary atomization spray drying is basically demonstrated by its large single production capacity, controllable feed rate, operating flexibility and wide application range. The specialty of pressure atomization spray drying is that it generates coarse particles is easy to maintain. Gas atomization spray dryer is widely employed by labs and processing factories because of its large power consumption.
The technology of airstream dryer has developed mature and this type of dryer could be directly designed if operating data is available. Currently, a large number of drying equipment manufacturers is able to provide this type of drying equipment. Airstream dryer is extremely suitable to dry materials of high humidity. Its effect in this regard cannot be compared by other drying equipments.
The application of fluidized bed dryer is second only to spray dryer. Fluidized bed dryer could be divided into fluidized bed dyer with blender on the feeding site and fluidized bed dryer installed with heat transfer system. When fluidized bed dryer is used to dry power materials which could easily get caked, installing blender on the feeding site could resolve the material caking problem and achieve normal drying effect. Fluidized bed dryer is widely adopted in chemical processing industry, pharmaceutical industry, mineral processing, dehydration of vegetables and other industries. Vibrating fluidized bed, made possible by imposing vibration on general fluidized bed, has a wide range of features including stable operating process, low noise, long longevity and convenient maintenance. Another advantage of vibrating fluidized bed is that it has high machinery efficiency and thermal efficiency, saving up to 30-60 percent of energy compared to other dryers.
Fluidized bed spray granulation dryer is considered to be an innovative application of fluidized bed dryer. This drying equipment is mostly employed to achieve direct drying and particle generation of liquid materials. The technology of fluidized bed spray granulation dryer is a combination of fluidization, atomization and drying technology. Flash dryer sprays atomized liquid material to fluidized bed, enables the seed to continue to grow and stimulates it to be discharged when it reaches the required size. The size of this equipment is small but the production capacity is relatively large. It could generate particles of desirable size. The industrial application of this equipment in varied fields is constantly increasing.
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