At present, the conventional drying equipment in the domestic market and the main drying equipment needed in the international market are basically made by our country. This shows that the history of the import of dry equipment in China has ended. But there are still some problems and worries. The existing problems are predicted by the general machinery drying equipment industry association of China. In the next few years, the demand for drying equipment in the chemical industry of our country will reach about 3000 sets, and the annual demand for pharmaceutical drying equipment will reach about 3000 sets. The annual demand for agricultural, forestry, grain and light industry is expected to be reached. 5000 sets (sets). At present, China's drying equipment occupies more than 80% of the domestic market share.
  It is estimated that the domestic drying equipment will occupy more than 90% of the domestic market during the "fifteen" period. At present, the existing problems are mainly manifested in two aspects: regional concentration and technological innovation capability. Most of the enterprises are distributed in the dry equipment industry in China. Most of the enterprises are derived from the early enterprises in the industry. The geographical location is relatively centralized, and the structure of personnel has serious defects. So far, the enterprises are mainly distributed in the river, Zhejiang, Shanghai, Liao, and black, and the enterprises in these areas almost accounted for 50% of the total industry total. In contrast, there are still some areas in China without dry equipment production enterprises. Fierce competition in the industry, some enterprises pay attention to the immediate interests, the lack of systematic development ideas, the overall quality of the slow improvement, seriously hindered the normal development of the industry. After the reform and opening up of technology, especially in recent years, the potential of China's economic growth has been effectively released. The supply and demand relationship of the shortage economy has changed radically, and the buyer's market has been formed. Under the pressure of the buyer's market, some enterprises are pursuing the market rather than looking for and opening up the market. The energy of the enterprises is concentrated on the more and more mature products of the market. Therefore, in the oven, vibrating fluidized bed, spray and other products, the manufacturers are more concentrated, and the competition is fierce. There are few enterprises engaged in drying equipment development in the industry. The perfection of new products and the introduction of new products mainly rely on mutual imitation. It is suggested to adopt advanced technology to improve product quality. There is still a certain gap between China's drying equipment technology and that of developed countries in the world.
  At present, the market and low technology products dominate. After China's entry into WTO, more and more international counterparts will enter the domestic market. With the increasing international competition, we will face enormous competition pressure. The world's famous dry equipment manufacturers, such as Danish Ni Lu group and Japan's ddkc, have set up branches in China to snatch the Chinese market. With the acceleration of economic globalization, more multinationals will shift their targets to the Chinese market. The increasingly fierce competition requires our enterprises to improve product quality through technological progress, absorbing foreign advanced technology and independent innovation. The idea of product development should work hard on the large-scale equipment, the degree of automation of control, the quality of the surface treatment of equipment, the selection of corrosion resistant materials, and the development of multi-functional combiner to prolong the life cycle of the products. Industry associations should organize enterprises to participate in international technological exchanges, absorb the latest technological achievements, and accelerate the improvement of the technical level of the whole industry. In order to adjust the structure of enterprises and cultivate the core competitive ability of enterprises, the characteristics of dry industry in China are that enterprises are not big, strong, inaccurate, inaccurate, and the overall quality is not high. Most of the enterprises are backward in management and do not reach the appropriate scale economy. It should be guided and coordinated through the industry association to change the situation of blind development. The enterprises in the three areas of Jiangsu, Zhejiang and Shanghai are relatively concentrated, and can consider the use of joint ventures, cooperation and acquisition to migrate to the central and western regions in order to find a broader space for the survival and development of the enterprises. Enterprises in the industry should take the road of strong and strong union, and cultivate some big companies and enterprise groups with strong technical strength, famous brands and independent intellectual property rights within the industry. To form its own special products and special services. The innovation ability of China's dry equipment production enterprises is low, and few new technologies and new products can be introduced. This is an important reason for the slow development of dry technology in China.
 At present, there are dozens of universities and scientific research units in our country engaged in the development and research of dry technology, distributed in the East and the West in our country, but most of the knowledge achievements have not been effectively transformed into practical productive forces. In order to become the main body of technological innovation, enterprises should directly cooperate with these universities and scientific research units in a variety of forms, so as to make rational allocation and utilization of resources and effectively cultivate and develop the innovative ability of enterprises.
  Prospects for future competition in drying equipment industry will focus on product quality, technical level, after-sales service and price. In the type of drying equipment, the air drying equipment and vacuum drying equipment will be heated by hot air, and other users in special fields, such as far infrared drying equipment and microwave drying equipment, will also gradually expand the number of applications. In the field of food and drug drying, the demand for large size equipment in vacuum freeze-drying equipment will increase, and the demand for functional combination (such as granulating drying, drying filtration) will also increase, and high automation drying equipment will be welcomed in some applications. In addition, the appearance quality of the drying equipment will be paid more and more attention, and the corrosion resistance and reliable performance of the corrosive material drying equipment will be paid special attention to by the users.
      At present, China's drying equipment industry has begun to enter a more mature stage of development, and can better meet the actual needs of users in various fields, but the price is only 1/3 of the same product in foreign countries, which makes the drying equipment in our country have a obvious price advantage over the imported equipment in the market competition; on the other hand, the dry equipment is dry. The volume of the dryness equipment is large, and most of them also involve on-site installation, debugging and after-sales service. Therefore, it is more convenient for domestic users to choose imported equipment than imported equipment. As far as international market is concerned, after China's entry into WTO, it is more conducive to expanding export of drying equipment. At present, the main export products of China's drying equipment are vacuum drying equipment, vibration drying equipment, small and medium grain, food and agroforestry products drying equipment, the annual export volume is more than 100, the main export areas are Southeast Asia and other developing countries, and have opened the door of the European and American markets. At present, the proportion of China's dry equipment exports to domestic dry equipment is less than 5%, and experts expect that the proportion of dry equipment exported to dry equipment in the period of "fifteen" will reach more than 10%. In the international competition, the main competitors of China's drying equipment manufacturers are Denmark, Switzerland, Britain, Germany, the United States and Japan. Compared with competitors, the advantage of China's drying equipment is low price, and the main reason is that the automation control degree, appearance quality, complete set and function combination of the product need to be further improved.
  Therefore, the domestic drying equipment production enterprises should make full use of China's opportunity to join WTO, strengthen the technical exchange with foreign countries, draw the foreign advanced drying equipment, speed up the improvement of the automation control degree, appearance quality, complete set and functional composition of the drying equipment in our country, and reduce the gap with the foreign products, and improve me. The trustworthiness of domestic products in the customers makes our drying equipment not only in the domestic market, but also in foreign markets can occupy a place. In our country, the varieties of dry equipment are increasing, the scope of application is expanding, the level and quality of the products are increasing rapidly, and the competition ability of the market is increasing. In particular, our government has issued various relevant policies to support the export of products, which have created excellent external conditions for the domestic dry equipment production enterprises. This shows that the development of dry equipment in our country has a good prospect. Drying equipment common sense: before the type of common dryer in China, there are many kinds of dryers, such as spray dryer, air dryer, fluidized bed dryer, fluidized bed spray granulation dryer, etc. Spray drying is one of the fastest growing equipment in drying equipment.
  There are 3 conventional atomization methods: rotary atomization, pressure atomization and airflow atomization. Rotary atomization spray drying is characterized by large single machine production capacity (spray volume can reach 200 t / h), easy to control the feed rate, large operational flexibility, more widely used. Pressure atomizer spray drying is characterized by the manufacture of coarse particles and easy maintenance. Because the nozzle hole is very small and easy to plug, the liquid must be filtered strictly. The nozzle hole is easy to wear and must be made of wear-resistant material. The pressure nozzle also has a new structure, called the pressure airflow nozzle. Its characteristic is the pressure nozzle, and the ambient gap is airflow nozzle. Atomization can be divided into two stages: the pressure nozzle first forms the liquid membrane, which is atomized by the second airflow to make the droplet finer. The advantages of this type of nozzles are:
 
（1）By adjusting the pressure of compressed air, the droplet diameter can be adjusted, and the operation is simple.
（2）Large output, high viscosity liquid, can also be atomized into fine droplets; 3 If the use of compressed air, the original pressure nozzle can also be used.
  The airflow nebulizer is mainly used in laboratories and intermediate factories, and its power consumption is large. The first two nebulizers are not atomized and can be atomized by an airflow nebulizer. High viscosity paste, paste and filter cake material can be atomized by three fluid nozzles. The airflow drying technology is mature and can be directly designed if there is operational data. At present, many drying equipment manufacturers can provide this type of equipment. The fluidized-bed dryer is second only to the spray dryer. It is divided into the fluidized bed dryer with the agitator and the fluidized bed dryer with internal heat transfer. When the fluidized bed drying is easy to unite or conjunct the powder material, the fluidization phenomenon will occur in the larger feeding section of the water. At this time, the agitator is set in the feeding section to eliminate the nodal problem and reach the normal fluidization. The latter is a combination of conduction and convective heat transfer. When the heat air quantity used in normal fluidized state is far from satisfying the heat required for drying, the internal heat exchanger is set up to supply part or most of the heat. This operation mode can save energy significantly. The internal heat exchanger has many forms. Fluidized beds are also often used for drying second and third stage drying machines. The vibration of a fluidized bed is called vibration fluidized bed. Vibration fluidization can be divided into two types from the source of vibration: one is driven by a vibrating motor; the other is driven by a common motor through a vibrating box to make the spring vibrate. When the vibrating fluidized bed is large in size, the latter has better effect. Fluidized bed spray granulation drier is an organic combination of three technologies: fluidization technology, atomization technology and drying technology. It sprays the atomized liquid onto the fluidized seed bed to make the seed grow and dry continuously, and discharges the seed out of the device when it reaches the specified size. The device is small in size and large in production capacity, and can produce large particles. The industrial application of the equipment has been increasing.