China Drying News Now, China has made gratifying achievements both in basic theory and in the application of drying technology. In some areas, it has already taken the lead in the world. However, due to the relative lag in testing methods, the application and promotion of drying technology are restricted to some extent. Dr. Cao Chongwen, a famous drying expert in China and a professor at China Agricultural University, and other experts pointed out that China is a big country for the manufacture and application of drying equipment, but it is not a strong country. Dry food is a necessary measure to improve food storage and shelf life. The performance of the dryer directly affects the quality and value of dried food. In recent years, China has developed a variety of versatile, high efficiency, low energy consumption, strong adaptability of the dryer. Vegetable dryer , steam vegetable drying dehydrator, using high temperature, steam heat exchange, so that the normal temperature air into a hot dry hot air, reaching temperatures above 120 °C. Can be dehydrated on cabbage, spinach, garlic, onion, green bean sprouts, pumpkin slices, radish slices, potato chips, etc. The temperature can be arbitrarily controlled. The dehydrator fan adopts energy-saving high-efficiency low-noise fan. Condensed water is discharged automatically by the steam trap. The energy-saving effect is good. The material tank is made of high-quality imported stainless steel, and the product fully meets the food hygiene standards. The purpose of the dryer is very wide. No matter whether it is in the industrial production or in the life, it is indispensable for the existence of the dryer. It has made a great contribution to the drying of materials, and it is specially used in food processing. The kind of food dryers play their roles. How do they develop? Let's take a look at the following articles. China's modern drying technology has been gradually developed from the 1950s and has so far been used for commonly used drying equipment such as air drying, spray drying, fluidized bed drying, rotary flash drying, infrared drying, microwave drying, freeze drying and other equipment. , China can produce supply market, for some of the newer drying technologies such as impact drying, colliding flow drying, superheat drying, pulsating combustion drying, heat pump drying, etc. have also been developed and researched, and some have been applied industrially. With the prominence of food problems and the transformation of agricultural production from extensive to profitable, an upsurge in the application of drying technology has been set off in northern China. Due to the relatively large scale of food production in the northern regions, large and medium-sized drying equipment has developed rapidly. There are only 20 manufacturers in the northeast region. This has also led to the development of dryer production in the southern region, mainly for the drying of rice. The dryers appeared one after another, and the research on rice drying technology was also mentioned on the agenda. At present, there are more than 50 grain dryer manufacturers in the country. However, due to the late start of the development of China's grain dryer, there are still the following problems: 1 Small scale In many manufacturers, less than half of the scale can be formed, and the production volume is not large. 2 The technical content is low, and there are not many mature models. Because grain dryers involve many factors such as grain type, drying process, production capacity, energy type and control technology, compared with foreign grain drying equipment, the technology is still relatively Lagging behind, the use of advanced control technology in large and medium-sized drying equipment is rare. China's existing drying equipment is mainly used coal and diesel, while the use of microwave and solar energy is still in the experimental development stage. Three types of small mainframes and minicomputers are few. The mainframe production capacity currently produced in China does not exceed 15T/h. On the other hand, individual farmer households in China are the main force for food production, but there are few mini-machines that are suitable for the convenience of farmers, simple operation, and low investment. The problem of rice drying in southern China is outstanding, but there are few models that are suitable for rice drying and the products are not mature. Therefore, how to develop a large, medium and small grain drying equipment with advanced structure, excellent performance, high efficiency and energy saving, and reasonable construction cost should be further developed. After entering the 1980s, with the deepening of the rural economic system reform and the development of township and village enterprises, China's food industry has made great progress, but also promoted the development of food drying machinery. However, the production of food drying machinery is basically a small scale, which cannot result in large-scale production, low technical content, and few mature models. In the drying process, production capacity, energy types and control technology, etc. are relatively backward, and the main method is to dry the food by traditional heating methods, that is, rely on heat through the conduction, heat convection and radiation and other ways to heat the material. This heating method from the surface to the inside lengthens the heating time of the food, resulting in the destruction of the nutrients of the food. After entering the 1990s, China’s investment in the food industry continues to increase. China’s scientific and technological workers continue to develop and innovate. In addition, advanced foreign technologies and equipment are continuously introduced to the country, and many forms of food drying machinery have emerged. Such as air convection drying equipment, drum drying equipment, vacuum drying equipment, pressurized drying equipment and electromagnetic radiation drying equipment. In addition, there are far-infrared methods for drying foods. This method is simple in equipment, saves energy and has a fast drying speed, and is particularly suitable for the drying of fruits and vegetables. At present, the most advanced cryogenic sublimation drying in food drying has begun to be used for food drying in China, but there are not many mature models, and there is still a certain gap compared with foreign countries. The founder of the International Drying Conference, Professor MUJUMDAR of the National University of Singapore and Polish expert STRUMILLO pointed out at the 13th International Drying Conference held in Beijing not long ago: Nearly 20 years ago, the drying technology in China, especially the drying technology, was studied. At an initial stage, Chinese scholars have strong desires and interests in the study of drying technology. Now, China has made gratifying achievements both in basic theory and in the application of drying technology. In some areas, it has already taken the lead in the world. However, due to the relative lag in testing methods, the application and promotion of drying technology have been constrained to some extent. Dr. Cao Chongwen, a famous drying expert in China and a professor at China Agricultural University, and other experts pointed out that China is a big country for the manufacture and application of drying equipment, but it is not a strong country. 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