What are the principle of spray dryer?

　　If you hear this name, you will know that the main function of the spray dryer is to dry, but do you want to know its specific introduction? Let's have a look.

What is spray dryer?

　　Dryers are generally divided into many types, different dryers are suitable for drying different objects. Spray dryer, for example, is more suitable for thermosensitive liquids and some viscous liquids or suspensions than other drying machines. Similar to the drying of milk and some drugs, spray drying machines can be chosen. In some cases, it can also be used to dry fuel, inorganic salt, soap powder, washing powder and other substances. It belongs to continuous atmospheric dryer.

Working principle of spray dryer

　　With the help of specially equipped machines, the liquid that needs to be dried is processed into mist and then contacted with hot air. This spray form greatly increases the contact area with the hot air, and greatly improves the drying efficiency and effect. The product can be dried quickly in a very short time.

　　The spray dryer can also complete the granulation process while drying products. There are usually pressure, centrifugation and airflow spray drying machines. The airflow spray dryer is most suitable for liquids with relatively high viscosity, and the whole process takes less than half a minute to run. It is flexible in operation and easy to manage and control. It consists of atomizer, slurry supply system, hot air system and so on.

　Basic performance

　　1. The drying speed is very fast, and it only takes a few seconds to complete the drying, especially for the drying of heat sensitive materials.

　　2. The operation process is very simple and convenient in control and management.

Difference between spray dryer and non spray dryer

　　Generally speaking, the former uses the way of atomizing the product to increase the contact area between the product and hot air, quickly evaporate the water and leave the solid product. This process is different from the latter, which reduces the aggregation of fine powder and is suitable for the drying of products with good fluidity and high fineness.

　　The above is the introduction of spray dryer, I believe you have read this article, you can have a general understanding of it. Spray drying machine has been widely used in various fields due to its obvious drying effect and high efficiency. If you are interested, you can pay more attention to it.