The agricultural product processing industry is a pillar industry for many rural economic development. The processing materials generally include some common agricultural products, such as cereals, dried fruits, dried fruits and vegetables, spices, etc. Drying is a widely used processing method in the agricultural product processing industry, which helps to preserve and transport agricultural products, greatly extends the shelf life of agricultural products, and improves the added value of products, Drying machine is an important equipment in its processing link. At present, the domestic market share of food drying equipment has reached more than 80%, which plays an important role in food processing.
The future development direction of drying equipment will focus on in-depth study of drying mechanism and drying characteristics of materials, and grasp the development and improvement of drying equipment for different materials and operating conditions; In addition, large-scale, high strength, high cost performance, and improving the adaptability to raw materials and product quality are the basic trends and research directions of drying equipment development; At the same time, further research and develop drying equipment that can adapt to most materials and meet special requirements, such as Microwave drying equipment Air energy drying equipment, etc.
Most foods in dry materials are wet materials that contain a lot of water. If the food contains too much water, it will cause microbial life activities, lead to food corruption or shorten the food shelf life, increase transportation costs, and reduce the added value of products. Food processing includes many processes such as raw material sorting, crushing, separation, mixing, sterilization, drying, packaging, refrigeration and drying, and the drying process is a key link to ensure food quality. Drying the food can prevent the propagation of microorganisms in the food, facilitate the storage, reduce the volume and weight of the food, facilitate the packaging, and reduce the transportation cost.
