Spray drying equipment is a continuous atmospheric pressure drying equipment. The liquid material is converted into mist and sprayed out using a special device, so that the mist liquid fully contacts the hot air and is absorbed and dried. Spray drying equipment is generally used for drying some heat-sensitive liquids, suspensions and viscous liquids, such as heat-sensitive liquids such as milk, eggs, tannins and drugs. Spray drying equipment can also be used to dry fuels, intermediates, soap powder, inorganic salts and other objects.

After the air is filtered and heated, it enters the air distributor at the top of the spray drying equipment. The heated air enters the drying chamber evenly in a spiral shape. After the liquid material is rotated through the high-speed centrifugal atomizer at the top of the tower, it is sprayed into extremely fine and microscopic mist-like droplets, which are fully contacted with the heated air and can be dried in a short time. desired finished product. The bottom of the drying tower and the cyclone separator continuously output the finished products we want, and the induced draft fan exhausts the exhaust gas.

Spray drying equipment has many advantages, here are two:
The drying speed of spray drying equipment is relatively fast. The surface area of the liquid material will be greatly increased after atomization. In the hot air flow circulation, 95%-98% of the water can be evaporated in a short time, in just a few seconds. We can get the finished product we want in just a few minutes. Spray drying equipment is particularly suitable for drying heat-sensitive materials such as milk, eggs, tannins and drugs.

The products dried by spray drying equipment have good uniformity, fluidity and solubility, and the product purity is relatively high and the quality is relatively good. The production process has become more simplified and operation control has become more convenient. For liquids with high moisture content reaching 40-60% (special materials can reach 90%), powdery and granular products can be obtained after one drying. The liquid materials dried by the spray dryer do not need to be crushed and screened later. processing, greatly reducing the production process and improving the purity of the product. The particle size, bulk density and moisture content of the product can be adjusted within a certain range by changing the operating conditions, which is very convenient in terms of control and management.

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