Three major factors restricting the development of dryers in China

At present, conventional drying is still the main form of drying in China at this stage. Compared with developed countries, domestic dryer products still have a certain gap in quality and technology.
The lack of theoretical research is a major bottleneck restricting the development of dryers in China. The physical properties of the materials to be dried are various, and only a few drying equipments cannot meet the needs of production.
Each spray dryer equipment company still lacks a qualified experimental procedure. Drying is an experimental technique. Whether it is theoretical research or drying equipment manufacturing, experimental methods are essential. Through experiments, the theoretical workers can summarize many rules in the drying process, and the dryer equipment recycling factory determines various process parameters through experiments. So far, neither the drying equipment factory nor the theoretical research unit has a perfect experimental base.
The reason is mainly because many units ignore the importance of the experiment. Some dryer equipment factories do not even have a set of experimental devices, which is very blind in the design of equipment. At present, there are mainly these aspects in the weak experimental methods. First, the equipment manufacturer has insufficient understanding of the experimental process and believes that it is optional. Second, there are many types of experimental devices, and the investment is huge, which can be tolerated by non-general enterprises. The establishment of a perfect experimental base is an urgent task for the study of drying technology in China. Third, the lack of experimental personnel, the analysis of experimental results is weak. Some enterprises do not have a technician. There are no drawings in the production process. Only the estimation and experience of mechanical processing personnel are used to produce equipment worth hundreds of thousands and millions of yuan. This phenomenon is not uncommon in the drying equipment industry. .
Another reason that restricts the development of the dryer industry is that although there are many dryer equipment manufacturers in China, these plants are mainly concentrated in several regions. An important reason for the concentration of a large number of low-level enterprises is that they are easy to copy. Dozens or even nearly 100 companies produce the same model, so that you can do it, and you can't do it. The specifications and promotional materials of each family are exactly the same, the content is strikingly similar, and the patented products are rare. The result of this situation can be imagined.
To solve these problems existing in the dryer industry, the whole dryer industry has emerged from the costly mutual imitation and price war, and only from the basic theoretical research, automation technology and other fields, to meticulously cultivate themselves. Independent innovation capability.
The low level of automation of domestic dryer equipment and the backward control methods are common problems. At the current level of automation, it is not difficult to solve the control problem in the dryer equipment, but the most lacking is the reasonable combination of the automatic control technology and the dryer equipment. As mentioned earlier, different materials have different requirements for dryers. Similarly, different materials have different requirements for control methods.
The role of automatic control in dryers is well known, but its one-time investment is also a major concern, and sometimes the investment in controlling dryer equipment exceeds the investment in the mechanical part of the dryer. It is also a subject that should be studied at present to determine the appropriate control method for the specific drying project in order to determine the control plan reasonably for the dryer and drying process.

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