Principle of Spray Rotary Drying Granulator
Release time:
2024/12/06
The principle of spraying rotary drying granulator is by spraying the material into fine particles, and then drying it rapidly under the action of hot air, finally forming dry granules. The specific process is as follows:
Atomization process: the material is dispersed into mist-like tiny droplets through the atomizer, and these droplets evaporate water rapidly under the action of hot air to form dry particles.
Drying process: The heated hot air enters the inside of the spray drying tower and contacts with the atomized material, and the hot air instantly evaporates the moisture in the material to complete the drying process.
Collection process: the dried material is separated from the hot air through cyclone separator, and then into the material collection bottle.
Application fields of spraying rotary drying granulator
Spray rotary drying granulator is widely used in chemical, pharmaceutical, food and other industries. For example, in the chemical industry, it is used to manufacture chemical granules; in the pharmaceutical industry, it is used to manufacture drug granules; in the food industry, it is used to manufacture food additive granules and so on.
Advantages and disadvantages of spray rotary drying granulators
Advantages:
Fast drying speed: the surface area of the material increases after atomization, and the hot air can quickly evaporate the moisture, and the drying time is short.
Good product quality: the product is spherical particles, uniform particle size, good fluidity, good solubility, high purity.
Wide range of application: applicable to a variety of materials, simple and stable operation, easy to realize automatic operation.
Disadvantages:
Higher equipment cost: the equipment cost of spray rotary drying granulator is higher, and the maintenance and repair cost is also relatively high.
Higher energy consumption: due to the need for a large amount of hot air for drying, energy consumption is higher.
To sum up, spray rotary drying granulator completes material processing through three main steps of atomization, drying and collection, which has a wide range of applications and significant advantages, but also has some disadvantages.
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