With the rapid development of modern society, the demand for improving efficiency is very urgent in all walks of life. The effect of drying material through natural wind can not meet the needs of modern industrial development. Under this demand, the drying machine can improve the drying efficiency of materials and finished products in the industry. The real dryer appeared in the middle of the nineteenth Century. The industrial revolution liberated the productive forces and improved the production efficiency. Especially the production efficiency of the textile industry was greatly improved. Therefore, the demand for the dryer was great. The drier formed the mass production, and the dryer was developed independently for a separate industry. . After a hundred years of continuous progress, the structure of the dryer products has been gradually improved, and the different types of dryers are suitable for the special drying needs of all walks of life. In particular, the emergence of far infrared and microwave dryer in twentieth Century represents the development of drying technology from the past simple wind drying and hot drying to higher technological content.
      China's drier industry started relatively late than the developed countries. But through the continuous exploration of our drier industry, we have also made certain achievements in the drier technology. At present, the dryer industry in China has formed a considerable scale of industry, the dryers produced can fully meet the needs of the domestic market, and end the history of China's industrial drying depends on the import dryer.
      In China, the dryer industry has entered a relatively mature stage of development, and the domestic dryer plays a great role in various industries, such as chemical, medical, food, textile, paper and other industries. I believe that with the continuous development of science and technology, China's drier technology will be able to make greater breakthroughs in the future development.