As the process continues to improve, it is believed that the development of drying equipment will become more mature and reduce the environmental pollution. The development direction of drying equipment must be towards high quality, low energy consumption and environmental protection. Large-scale steam sterilization, vacuum freeze-dryer steam sterilization, and vacuum freeze-dryer are key equipment for ensuring the quality of bio-pharmaceuticals. With the improvement of the peopleâ€™s living standards, people are increasingly demanding vacuum-treated foods, vegetables, health products, and nutritional products that have good rehydration, good color, and good nutrition. Therefore, the demand for large-scale vacuum freeze-drying equipment needed to adapt to these products will also increase.
Drying technology is applied to almost all industries and it is a key factor affecting product quality and industrial efficiency. At present, the drying methods of wood mainly include conventional drying, high-temperature drying, dehumidifying drying, solar energy drying, microwave drying, heat pump dehumidification and solar energy combined drying.
According to the forecast of China General Machinery Drying Equipment Industry Association, the demand for drying equipment in China will be large in the next few years, and the chemical industry will be about 3000 (sets) of drying equipment; the annual demand for pharmaceutical drying equipment will reach around 3,000 (sets); agriculture, forestry For industries such as food, light industry and other industries, such as drying equipment, the annual demand is expected to reach around 5,000 (sets). At present, the market share of drying equipment in the domestic market has reached more than 80%.
The development and improvement of dryers need to grasp the optimal operating conditions for different materials; in addition, the large-scale, high-intensity, high-cost, and improve the adaptability of raw materials and product quality, is the basic trend of dryer development; Further research and development of new efficient and adaptable special requirements of the dryer, such as combination dryer, microwave dryer and far infrared dryer.
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.
As the equipment quality, supporting components and basic research still need to be further improved, conventional drying is still the main form of drying. As each kind of drying has its own advantages and application scope, combined drying will be the trend of future development.
Compared with developed countries, domestic products still have a certain gap between quality and technical level. Therefore, China's drying equipment manufacturers must continue to learn from international advanced technology, combined with practical experience, explore new technologies, develop new technologies, and come up with new products to participate in international competition.
Future development direction
The boiling granulation dryer, commonly known as the domestic one-step granulator, was designed after the introduction of foreign products of the same type in the 1980s, and was designed after digestion, absorption, and improvement. Because of its simple operation, superior performance and excellent manufacturing, the equipment can meet the GMP requirements of the pharmaceutical and food industries, and is welcomed by users in the pharmaceutical and food industries. The device is especially suitable for drying and granulating Chinese and Western medicines and foods. The obtained particles have strong disintegration degree, good fluidity and fast dissolving property, and can be directly used for tableting, filling capsules, granules and solid beverages.
Centrifugal spray dryers have achieved ideal application results in dyes, dairy products and other fields. Over the years, the equipment has been widely used, and the level of technology and manufacturing quality have made great strides. In recent years, large-scale centrifugal spray dryers have also received attention in the application of flue gas desulfurization, and the development prospect cannot be ignored.
Grain drying storage equipment demand. At present, the drying and warehousing of grain has been highly valued by the state and relevant departments, coupled with the requirements of environmental protection and other aspects, China has begun to change the past granary drying mainly by natural drying, granary drying and storage Equipment began to be widely promoted.
The lack of innovation in drying equipment in China affects international competitiveness
As far as the domestic market is concerned, as China's drying equipment industry has begun to enter a more mature stage of development, it has been able to better meet the actual needs of users in various fields, and in the price only 1/3 of the same foreign products, which makes China's drying equipment In the market competition, there is a clear price advantage over imported equipment. On the other hand, due to the large size of drying equipment, most of them involve on-site installation, commissioning, and after-sales service. Therefore, for domestic users, the use of domestic equipment is more preferable. Imported equipment is more convenient.
However, as far as the international market is concerned, the competitiveness of our drying equipment is obviously insufficient. In the international competition, the main competitors of China's drying equipment manufacturers are companies in Denmark, Switzerland, the United Kingdom, Germany, the United States, and Japan. Compared with competitors, the advantage of drying equipment in China is low price, but the level of automation control, appearance quality, completeness and functional combination of the product still need to be further improved.
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.
In addition, with the rapid growth of the drying equipment industry and greater room for development, more and more practitioners in other fields have also entered the industry. In particular, many small-scale manufacturers do not have the relevant technologies and equipment. They have a lot of products, and they produce mixed products, disrupting the healthy development of the industry to a certain extent, and restricting the industry's level of innovation.
Therefore, if China's precision drying equipment industry wants to be in line with the international advanced level, we must start with fundamental issues, we must constantly strive to upgrade production equipment, strengthen technological innovation, and only in this way can we occupy a place in the international arena.