The rake vacuum dryer is a kind of mechanical equipment that we use very widely now. It has low drying temperature, fast drying speed, can effectively save energy, and has good airtightness. It is easy to recycle and use equipment solvents. It is almost all different Materials with different properties are feasible, especially explosive, easy to oxidize, and drying of paste-like materials. The whole vacuum dryer has simple structure, low power consumption and convenient maintenance. It is widely used in petrochemical, food, medicine, dye and other industries.
The research on rake vacuum dryers in China is relatively early, especially in recent years, the development is very rapid, most of which are developed from the research direction of increasing the heat exchange area, which improves the heat exchange efficiency. Japan has developed a vacuum rake dryer that can continuously dry pasty materials.
my country started the research on this kind of dryer in the 1970s, and it has formed part of a series of products. However, the drying efficiency is low, the structure design is unreasonable, and it is difficult to meet the large-scale requirements. Compared with foreign countries, the technical level has a certain gap. Special types of vacuum rake dryers still need to be imported from abroad.
At present, Xinggan Drying has developed a new type of vacuum rake dryer, which can completely replace imported products, and can save nearly 2/3 of the cost of investment. The rake vacuum dryer is mainly composed of a cylinder, a stirring shaft, a transmission system and a sealing device. The heat required for drying is mainly provided by the stirring shaft and the water jacket of the cylinder block. When the heating medium is connected to the equipment, it is indirectly heated by the heating jacket and the stirring shaft to achieve the drying effect.
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