Technical advantages of small spray dryer

　　Small spray drying machines are widely used in food, medicine, milk powder, egg yolk, soy sauce, coffee, starch, protein, hormones, serums, antibiotics, enzymes, spices, extracts, organic chemical domains, wax, dyes, detergents, surfactants, pesticides, preservatives, synthetic resins, pigments and other inorganic chemical domains, Ferrates, ceramics, The development fields of fuel cells for automobile and ship propulsion include powder for copying, magnetic material, metal powder, photosensitive material, various industrial drugs, sample waste liquid, etc.

　　In some laboratory spray drying plants, the nutritional components of some plants will be lost due to high temperature. For these plants, freeze drying is an effective method of concentration and preservation. However, some plants need to set the temperature to remove toxicity. For these plants, spray drying technology is ideal. In the case of soybeans, the concentration process requires a constant temperature to remove a substance called trypsin inhibitor.

　　Spray drying of small spray dryer is a common drying method in the market. The research on the complexity of spray drying process has made many achievements. The low heat efficiency of spray drying has left much room for research for the equipment researchers and enterprises. It is necessary to constantly improve the process and technology to meet the needs of the market and the product itself. Starting from the analysis of spray drying research, the new research achievements and the development of equipment and technology in the spray dryer area are introduced, and the new research topics and directions are summarized and put forward.

　　The small spray dryer technology can dry the solution, suspension, emulsion and so on. The products are small, uniform, fluidity and instant solubility, and have been widely applied in many fields such as food, pharmacy, chemical industry, environmental protection and so on. This article mainly discusses spray drying process, laboratory spray dryer type and spray drying technology application.

　　The small spray dryer uses atomizer to disperse the material into fine droplets, and the process of evaporating solvent to form dry powder in the hot drying medium. The general spray drying is divided into four stages: a liquid atomization; B. contact and mixing of fog group and hot drying medium; C. evaporation drying of droplets; D. the drying product is separated from the drying medium. The raw material liquid can be solution, emulsion or suspension, or liquid form that can be transported by the pump, such as molten liquid or paste. The product is powder, granular, hollow ball or pellet.

　　A small spray dryer is often a step after the manufacturing process, and a small spray dryer is a continuous spray, mixing and drying process to change material from liquid to powder. Spray drying has its unique advantages in many food storage technologies. Because the temperature used by this technology is not very high, it can effectively retain the taste, color and nutrition of food while removing microbial contamination.

　　The air enters the air distributor on the top of the small spray dryer through the filter and heater, and the hot air spirals evenly into the dryer. The atomizer of the laboratory spray dryer is pumped from the material trough through the filter to the top of the dryer atomizer. The laboratory spray dryer dries the material into small mist droplets, and the liquid and hot air flow in contact. The water evaporates rapidly and is dried into finished products in a short time. The finished product is discharged from the bottom of the drying tower and the cyclone separator, and the exhaust gas is discharged by the fan.

　　Small spray drying is usually used to remove moisture from raw materials. In addition, small spray dryer has many other uses, such as changing the size, shape or density of the material. Small spray dryer can help to add other ingredients in the production process, and help to produce quality standards and strict products.