Spray dryer is a kind of drying equipment widely used in food, pharmaceutical, chemical and other industries. It can quickly dry liquid raw materials into powder products. Spray drying technology has become an indispensable part of modern industrial production due to its advantages such as high efficiency, uniformity and controllability. This article will introduce the definition, working principle, components, application fields, advantages and precautions of spray dryer in detail. 1. Definition of Spray Dryer             Spray dryer is a device that uses spraying to spray liquid materials into droplets through high-speed centrifugal or high-pressure nozzles, and evaporates water instantly when in contact with hot air, eventually forming a powder or granular dry product. This drying method can complete large-area liquid evaporation in a short time, and is particularly suitable for drying heat-sensitive materials. ...

The application of bioreactors in the biological industry is particularly important, especially in the production of biological products (such as vaccines, monoclonal antibodies, recombinant proteins, gene therapy products, etc.). As an efficient bioprocessing tool, bioreactors have played a vital role in modern biological research and industrial production. They are used in many fields, from drug research and development to food production, to energy conversion and environmental protection, showing their diverse uses. The following are specific examples of these application areas: in the pharmaceutical industry, bioreactors are used to cultivate microorganisms on a large scale to produce drugs; the food industry uses reactors for fermentation processes to obtain food additives with nutritional value; in terms of energy, they help improve energy efficiency while reducing greenhouse gas emissions; in the field of environmental protection, bioreactors can process waste and turn...