Technology-led search for breakthroughs in the development of the drying equipment industry
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Drying equipment industry development "heavy"
In the decades of development, the dryer industry has experienced growth from scratch and from small to large. Although China's drying equipment industry started late, but relying on the rapid development of China's chemical, pharmaceutical, food and other industries, the market demand for China's drying equipment industry is huge.
Drying equipment is suitable for heating, solidification, drying and dehydration of materials in industries such as chemical, food, meat products, agricultural and sideline products, aquatic products, and light industry. Such as raw materials, in the pieces of extract, powder, granules, meat products, dehydrated vegetables and so on.
The modern drying technology in China was gradually developed in the 1950s. So far, commonly used drying equipment, such as air drying, spray drying, fluidized bed drying, microwave drying, freeze drying, etc., can be produced in China to meet the market. Supply, for some of the newer drying technologies such as impact drying, colliding flow drying, superheated steam drying, heat pump drying, etc. have also been developed and researched, and some have been applied industrially.
In the coming years, the demand for drying equipment in China will increase significantly. In the field of grain drying, small drying equipment for rice and wheat drying (below 5 tons/hour) is expected to reach annual demand of about 1,000 units. This requires that drying equipment companies continue to carry out technological innovations and produce products that meet market demand.
Drying equipment industry development "difficulty"
At present, the domestic market share of drying equipment in China has reached more than 80%. It is expected that during the “Twelfth Five-Year Plan†period, the domestic market share of domestic drying equipment will reach over 90%, and the focus of competition will be mainly on product quality, technical level, after-sales service and price. As we all know, compared with developed countries, there are still some gaps in the quality and technical level of domestic drying equipment products.
It is difficult for China's current drying equipment to compete with foreign countries. The main reason is that the core technology is insufficiently controlled. Because the production technology of drying equipment in China has a gap of nearly 10 years compared with that of foreign countries, the scale of domestic enterprises is small and scattered, and the degree of industrial concentration is not high. Although China is currently engaged in the development and production of drying equipment, most companies lack the core technology and can only engage in small-scale system integration and installation support.
The long-term technical backwardness has caused the drying equipment industry in China to face the realm of internal and external problems. Due to its small scale and application, it has not formed sufficient scale applications, mostly relying on multi-species and small-batch production. Although the production cost is high, the sales price is high. It is very low, on the one hand, there is fierce competition in the country, on the other hand there is no advantage in the world, and there is no competitiveness compared with foreign products.
Judging from the current development status, the development of China's drying equipment industry still has a large gap compared with the world's advanced level. There are still many problems in its development. First, the level of technology is low, the quality of precision drying equipment is poor, and the precision is high. The manufacture of drying equipment is still difficult, and core technologies and key products still rely on imports. Large processing allowances, serious energy consumption and raw material consumption of drying equipment, long processing cycles, and low production efficiency have become bottlenecks that restrict the development of the industry. Second, there are fewer companies with R&D capabilities in the entire industry chain, and there is not enough willingness for R&D. Precision drying equipment is a product of a large number of production technologies and production processes. If there is no definite R&D investment product that has remained at the low end, it will be phased out by the tide of the times.
Drying equipment industry development "way"
China has already ranked as the largest producer of drying equipment with countries such as the United States, Japan, and Germany. However, compared with these countries, China can only rely on low prices to win the low-end market. With the increasingly fierce international competition, The drawbacks arising from the lack of independent innovation capabilities will gradually show up.
China's drying equipment industry should vigorously promote the original innovation, integrated innovation and introduction, digestion, absorption and re-innovation of drying equipment, and promote the development of products with independent intellectual property rights. Increase investment in independent innovation, focus on breakthroughs in common key technologies, and accelerate the establishment of an innovation system that takes enterprises as the mainstay, closely integrated production, education and research, and has a long-term mechanism to promote the transformation of food and packaging machinery from imitative innovation to independent innovation. Taking the enhancement of independent innovation capability as the strategic basis for the development of science and technology, it is a central link in adjusting the industrial structure and transforming the growth mode.
The development of dryers should also pay attention to energy saving and comprehensive utilization of energy, such as adopting various joint heating methods, transplanting heat pump and heat pipe technology, developing solar dryers, etc., and developing automatic control technology of dryers to ensure optimal operating conditions. In addition, as humans attach importance to environmental protection, improving the environmental protection measures of the dryer to reduce the leakage of dust and exhaust gas will also be the direction that needs further study.
In the food field, the requirements for drying equipment are relatively high. There are specific requirements for the material, structure and processing quality of the drying equipment used. There are also stringent hygienic specifications for the drying equipment and the drying system. Therefore, it is necessary to continuously pass technological innovations to meet the application requirements. The ever-increasing demand in the field is also the path that China's food drying equipment industry must take to break new ground.
Drying equipment industry development "law"
The achievements of modern drying technology in China are the result of the joint efforts of Chinese scholars and the business community. Although the results are gratifying, the research lacks financial support. Many of the results have not yet been translated into productivity, so that the company’s products are not updated. The rapid development of modern drying technology in China requires researchers to work harder, but also to make the drying technology market more orderly and to standardize competition.
Industry insiders point out that in the future, the development of drying equipment in China will present five major trends. First, the comprehensive application of several forms of heat transfer, so that in the different stages of drying play the advantages of various forms of heat transfer, so that the use of drying equipment can be more reasonable; Second, the equipment will be to large-scale development; Third, drying equipment Will achieve specialization; Fourth, will tend to multi-stage and combined drying system development; Fifth, the device will achieve multi-functional.
When exploring the new development path 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. To implement the development strategy of high efficiency and green drying, we must first take the path of resource-saving development, and change the single extensive drying into combination and intelligent drying. It is necessary not only to fundamentally transform the drying process, but also to carry out comprehensive and multi-level energy-saving technological transformations and vigorously develop drying technologies that use renewable energy and industrial waste heat.
China's drying industry is characterized by small, non-strong, non-professional, and unsophisticated enterprises. The quantity is large and the overall quality is not high. Most enterprises are lagging behind in management and do not achieve the appropriate economies of scale. They should guide and coordinate through industry associations and change the blind development. situation. Relatively concentrated enterprises in Jiangsu, Zhejiang, and Shanghai can consider the use of joint ventures, cooperation, and acquisitions to migrate to the central and western regions in search of a broader space for corporate survival and development. Enterprises must become the main body of technological innovation and should directly cooperate with these universities and research institutes in various forms to make resources be reasonably allocated and utilized, and to effectively cultivate and develop the innovative capabilities of enterprises. In the course of development, we will continue to develop along the future trend.