Development of drying equipment in China

with the progress of the times and the continuous innovation of science and technology, the domestic drying technology has matured. The main drying equipment such as airflow drying, spray drying, fluidized bed drying, microwave drying, freeze drying and other equipment have basically been nationalized, meeting the basic needs of the market. New technology and equipment such as impact drying, impinging stream drying, superheated steam drying and heat pump drying have also been partially put into operation. The application of microwave drying technology has its unique role in the pharmaceutical industry of traditional Chinese medicine. It greatly simplifies and shortens the process and time of extract of traditional Chinese medicine to semi-finished products or finished products, and improves production efficiency and product quality. Compared with developed countries abroad, there is still a big gap in drying equipment production in China. However, the advantages of domestic equipment are gradually being established and the dominance of domestic market is basically realized. Microwave vacuum drying equipment will become the mainstream of market demand. China's drying industry must greatly improve the technology level, improve drying efficiency, reduce energy consumption, and contribute to the realization of green production. The future development of drying equipment in China shows five main trends.

1. The comprehensive application of several heat transfer forms will make the advantages of various heat transfer forms play a more reasonable role in different drying stages and make the use of drying equipment more reasonable;

2. The equipment will be developed to a larger scale;

3. The drying equipment will be specialized;

4. The development of multi-stage and combined drying systems will be tended to be realized;

5. The equipment will be multi-functional. People in the industry said that domestic dryer equipment manufacturers should make full use of the opportunity of China's entry into WTO, strengthen technical exchanges with foreign countries, draw on the advantages of advanced drying equipment from foreign countries, and make our country dry. Therefore, China's drying equipment manufacturing enterprises must constantly learn from international advanced technology, combined with practical experience, explore new processes, develop new technologies, and bring out high-end products to participate in international competition. Compared with foreign enterprises, there is a gap in the manufacture of dryers in China. In exploring the new development road of drying technology, comprehensive consideration must be given to energy efficiency, environmental protection and product quality in order to achieve comprehensive, coordinated and sustainable development. In order to implement the development strategy of high efficiency and green drying, we should first take the resource-saving development road, change the single extensive drying into combination and intelligent drying. It is necessary not only to carry out fundamental transformation in drying technology, but also to carry out comprehensive and multi-level energy-saving technological transformation, and vigorously develop and apply the drying technology of renewable energy and industrial waste heat.