In industrial production, there are many materials or finished products that need to be stored in a dry environment for a long period of time. This is because in a humid environment, microorganisms are prone to grow and the materials become moldy. For example, textile enterprises store fabrics, and food processing companies store grain. Before wood processing, wood must be dried so as not to cause distortion after processing and forming. Like the storage of grain, in the past we used natural air-drying and solar irradiation to bring the grain to a certain degree of dryness. In ancient times, in order to enable food to dry faster, the use of ventilated openings with large air flow characteristics to speed up the drying of grain, which is considered the earliest "natural" drying oven.

However, with the rapid development of modern society, the requirements for improving the efficiency of all walks of life are also very urgent. The effect of drying materials through natural winds can no longer meet the needs of modern industrial development. Under this demand, the appearance of dryers has brought about an increase in the drying efficiency of materials or finished products in the industry. The dryer in the true sense appeared in the middle of the 19th century. The industrial revolution liberated the productivity and increased the production efficiency. Especially the production efficiency of the textile industry was greatly increased. Therefore, the demand for dryers was great, and the dryers became mass-produced. The production of dryers developed independently as a separate industry. After more than 100 years of continuous progress, the structure of dryer products has also been gradually improved. Various types of dryers are suitable for special drying needs of all walks of life. In particular, the appearance of the far-infrared and microwave dryers in the 20th century means that the drying technology has shifted from simple wind drying and thermal drying in the past to a higher technological level.

The start of the dryer industry in China is very late for developed countries. However, through continuous exploration of the dryer industry in our country, we have also achieved definite results in dryer technology. At present, China's dryer industry has formed a considerable industrial scale. The dryers produced have been able to fully meet the needs of the domestic market and ended the history of China's industrial drying relying on imported dryers.

Considering the development of the dryer industry in China, although the dryer industry in China started late, it has entered a relatively mature stage of development. Domestic dryers play a huge role in the chemical, pharmaceutical, food, textile, paper and other industries. . It is believed that with the continuous development of science and technology, China's dryer technology will certainly be able to make greater breakthroughs in the future development.