In the international competition of drying equipment manufacturers in China, Denmark, Switzerland, the United Kingdom, Germany, the United States and Japan's major competitors. Compared with competitors, the advantages of drying equipment in China are low prices. The disadvantages are the extent to which the products are controlled automatically, the appearance quality is complete, and the functional combination should be improved. Therefore, domestic drying equipment manufacturers should make full use of China's accession to WTO opportunities, strengthen technical exchanges with foreign countries, and learn from foreign advanced drying equipment no longer, in order to speed up the automation and control of drying equipment in China, and improve the appearance of quality. The combination of perfection and function has narrowed the gap with foreign products and improved the trust of customers. China's drying equipment is not only dominant in the domestic market, but also in foreign markets.
Photo of drying equipment in China
In the type of drying equipment, hot air heated atmospheric pressure drying equipment and vacuum drying equipment will be the main, 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 food and drug drying, Demand for larger-scale equipment in vacuum freeze-drying equipment will increase; demand for equipment with a combination of functions (eg granulation-drying, drying-filtration) will also increase; high-automated drying equipment will be welcomed in some applications. . In addition, the appearance quality of drying equipment will be more and more emphasized. The corrosion resistance and reliable service life of corrosive material drying equipment will be of particular concern to users.
As for the number of drying equipment manufacturers in China, it must be the world's largest country. There are only dozens of dry companies in Australia, Canada and Germany. There are fewer dry companies in Southeast Asian countries. However, in many drying equipment manufacturing companies, no matter whether it is the drying technology or equipment manufacturing level, there has not yet appeared a manufacturer that has a certain influence in the world and has a place in the drying industry, such as Japan, with less than ten drying companies. There are well-known companies such as Okawara and Tokushima. The type of drying equipment produced in China is only 30-40% foreign. Some equipment has replaced imported products, and some products still have a big gap compared with foreign products. Therefore, for more than two decades, although China's drying industry has achieved tremendous development, there is still a long way for China to enter the ranks of drying technology applications and drying equipment manufacturing countries.
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Modern dryers started using fixed-bed dryers that were operated intermittently. In the middle of the 19th century, the use of tunnel dryers marked the development of dryers from intermittent operation to continuous operation. Rotary drum dryers achieve better agitation of the granular material, which increases the drying capacity and strength. Some industries have developed continuous operation dryers adapted to the requirements of the industry, such as drum dryers for the textile and paper industries.
In the early 20th century, spray dryers were used in dairy production to provide a powerful tool for large-scale drying of liquid materials. Since the 40's, with the development of fluidization technology, high-intensity, high-productivity fluidized bed and air dryers have appeared one after another. The cryogenic sublimation, radiation and dielectric dryers provide new means to meet special requirements. In the 60s, far infrared and microwave dryers were developed.
The technological content of drying equipment initially showed a leading role. Since 2004, the development of the national chemical industry has continued to improve, and the market situation for drying equipment has been stable and promising. Production enterprises have generally obtained better operating results. At present, the prominent feature of the drying equipment service chemical industry is that the technical content has become increasingly prominent. This is very different from selling products in the past mainly by price competition. Among them, some manufacturers of high-tech drying equipment, focusing on the development of new products, the benefits are increasing; on the contrary, some products with low technological content, new products and new technology development capacity of weak enterprises, the efficiency began to decline.
The market reaction shows that the chemical industry expects the dry equipment manufacturing industry to adjust its product structure in accordance with the requirements of high quality, low energy consumption, and environmental protection, further strengthen basic research, and solidify the foundation for applied research and development. In terms of technology, research on automation, testing, manufacturing processes, material design, and other aspects of materials has been strengthened. In terms of applied research and development, it is necessary to focus on international exchanges and cooperation, but also on the protection of intellectual property rights; it is necessary to pay attention to the development of new technologies and new applications, but also to focus on innovation and innovation in traditional processes and traditional applications.
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