Food Additives Spray Dryer

Definition of Food Additives
Food additives are non-nutritive substances that are consciously added to food, generally in small amounts, to improve the appearance, flavor and organization or storage properties of food. According to this definition, food fortification for the purpose of enhancing the nutritional content of food should not be included in the scope of food additives.

Food Additives Spray Dryer Introduction
Spray drying is a frequently used process in the liquid process forming and drying industry. It is suitable for generating powdery and granular solid products from solutions, emulsions, suspensions and pasty liquid raw materials. Therefore, spray drying is an ideal process when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product meet the standards.

Food additives spray dryer working principle
The air is filtered and heated, and enters into the air distributor at the top of the dryer, and the hot air enters into the drying chamber evenly in spiral shape. The material liquid is sprayed into very fine mist liquid beads by the high-speed centrifugal atomizer at the top of the tower (rotating), which can be dried into finished products in a very short time by contacting with the hot air in parallel flow. The finished product is continuously output from the bottom of the drying tower and cyclone separator, and the exhaust gas is exhausted by the fan.

Food additives spray dryer performance characteristics
The drying speed is fast, the surface area of the material is greatly increased after atomization, and 95%-98% of the water can be evaporated instantly in the hot air stream, and the drying time takes only a few seconds, especially suitable for drying heat-sensitive materials.

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