Bottleneck in the development of the hottest secon

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The development of second-hand dryer has encountered a bottleneck

drying equipment has now become an indispensable type of mechanical equipment in many industries, including the food industry. It is widely used in the field of food industry and plays an irreplaceable role

domestic second-hand dryers can be divided into boiling granulation second-hand dryers, centrifugal spray second-hand dryers, vacuum freezing second-hand dryers and other types. On the whole, the development of second-hand dryers in China is relatively rapid by pushing away the workbench and upper beam and moving horizontally, but when the rapid development stage of second-hand dryers in China came to an end, second-hand dryers in China encountered a major bottleneck in its development path

compared with developed countries, there is still a certain gap in the quality and technology of domestic second-hand dryer products to avoid moisture leakage and evaporation. Lack of theoretical research is a major bottleneck restricting the development of second-hand dryers in China. The physical properties of dried materials are diverse, and only a few drying equipment can not meet the needs of production

Theoretical research is the basis for developing new drying technology. With the development of drying technology in China, it is necessary to cultivate a number of theoretical research and drying technology development workers to improve the technical content of drying equipment in China

in recent years, although some colleges and universities or scientific research institutions in China are doing this work, the human and material resources invested are far from enough. In terms of theoretical research, there is still a big gap between China and Denmark, Canada, Japan and other countries

the lack of technology is the second bottleneck that restricts the development of second-hand dryers in China. The low automation level and backward control means of domestic second-hand dryers are common problems. In recent years, with the increasing attention and investment of the industry, the current situation of second-hand dryers in China is moving towards the direction and goal of optimizing the extrusion granulation process

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