The spray drying of laboratory spray dryers is a common drying method currently on the market. There have been many results in the complexity of the spray drying process. The low thermal efficiency of spray drying has left equipment researchers and the business community with great research and development. Space needs to continuously improve its processes and processes to meet the needs of the market and the product itself. Starting from the analysis of the research status of spray dryers, the new research results and the development of equipment and technology in the field of laboratory spray dryers are introduced, and the current relatively new research topics and directions are summarized and proposed.

Laboratory spray dryer technology can dry solutions, suspensions, emulsions, etc. The resulting product has small particle size, uniformity, good fluidity and instant dissolution, and has been widely used in many fields such as food, pharmacy, chemical industry, and environmental protection. The article mainly discusses the spray drying process, the type of laboratory spray dryer equipment and the application of spray drying technology.

The laboratory spray dryer uses an atomizer to disperse the material liquid into fine droplets, and the process of quickly evaporating the solvent in the thermal drying medium to form a dry powder. Generally, spray drying is divided into four stages: material liquid atomization; mist group Contact and mix with hot drying medium; evaporation and drying of droplets; separation of dried product from drying medium. The raw material liquid can be a solution, emulsion or suspension, or a liquid form that can be transported by a pump such as a melt or a paste. The product is in the form of powder, granules, hollow spheres or pellets.

Laboratory spray dryers have a very wide range of applications, suitable for food, pharmaceuticals, milk powder, egg yolk, soy sauce, coffee, starch, protein, hormones, serum, antibiotics, enzymes, spices, extracts, organic chemistry, waxes, dyes , Detergents, surfactants, pesticides, preservatives, synthetic resins, pigments and other inorganic chemistry fields, ferrites, ceramics, powders for copying, magnetic materials, metal powders, photosensitive materials, various industrial chemicals, sample waste, etc. Various fuel cell development fields for automobile and ship propulsion.

In laboratory spray dryers, the nutrients of some plants will be lost due to high temperature. For these plants, freeze-drying is an effective method of concentrated preservation. However, some plants do require a certain temperature to remove toxicity. For these plants , Spray drying technology is ideal. Taking soybeans as an example, the concentration process requires a certain temperature to remove a substance called trypsininhibitors.

Laboratory spray dryers are often a step in the manufacturing process. Laboratory spray dryers change the substance from liquid to powder through continuous spraying, mixing and drying. Among the many technologies for storing food, spray drying has its unique advantages. Because the temperature used in this technology is not very high, it can effectively retain the taste, color and nutrition of the food while removing microbial contamination.

The air passes through the filter and heater and enters the air distributor on the top of the laboratory spray dryer. The hot air enters the dryer evenly in a spiral shape. The material liquid of the laboratory spray dryer is pumped from the material liquid tank through the filter to the centrifugal atomizer on the top of the dryer. The laboratory spray dryer sprays the material liquid into very small mist droplets. The material liquid and hot air are combined Flow contact, the water evaporates quickly, and it is dried into a finished product in a very short time. The finished product is discharged from the bottom of the drying tower and cyclone separator, and the exhaust gas is discharged by the fan.

Spray drying is usually used to remove water from raw materials. In addition, the laboratory spray dryer has many other uses, such as: changing the size, shape or density of the substance. The laboratory spray dryer can assist in adding other ingredients during the production process, which helps to produce strict quality standards. product.

A brief introduction to the technical process and application of laboratory spray dryers. Holves is committed to the development and production of spray dryer equipment. After years of hard work, it has rich engineering experience. At the same time, the company has a group of professional technical teams to provide customers with A series of services from professional industrial design to equipment production, installation and commissioning. If you want to know more about spray dryers, please continue to pay attention.

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