Vacuum drying device and drying method

Abstract

The invention discloses a vacuum drying device and a method for drying materials by the aid of the vacuum drying device. The technical scheme mainly includes that the vacuum drying device comprises a horizontal tank, a feed port, a discharge port, a feed port isolation valve, a discharge port isolation valve, a vacuum pump and a heating device, the horizontal tank is respectively connected with the feed port, the discharge port and the vacuum pump, the horizontal tank is respectively isolated from the feed port and the discharge port by the feed port isolation valve and the discharge port isolation valve, the horizontal tank is provided with a heating jacket, and the heating jacket is connected with the heating device. The vacuum drying device is characterized by further comprising a vibrating device connected with the horizontal tank. The vacuum drying device is mainly used for drying the materials at a low temperature in a vacuum environment and liquefying the materials by means of mechanical vibration, material drying efficiency and drying degree are improved by heating and evacuating, and the vacuum drying device is particularly applicable to heat sensitive materials, anaerobic materials or materials with special drying requirements.

Description

technical field [0001] The invention relates to a vacuum drying device, in particular to a vacuum vibration drying device, and also relates to a method for drying materials using the vacuum drying device. Background technique [0002] Vacuum drying has been widely used in chemical, pharmaceutical, food and other industries for drying heat-sensitive materials and other additives. Vacuum drying can dry the material at a lower temperature (40°C to 75°C), which can ensure that the material will not be discolored or deteriorated due to excessive temperature during the drying process. However, because the material in the vacuum drying container is not easy to stir, the drying rate is low, and the material in the container will agglomerate, resulting in the degree of drying of the material not meeting the process standard. In the prior art, gas fluidization is usually used to solve this problem, but the gas cannot be used to fluidize the material under the condition of high vacuum...

AI Technical Summary

Problems solved by technology

However, because the material in the vacuum drying container is not easy to stir, the drying rate is low, and the material in the container will agglomerate, resulting in the degree of drying of the material that cannot meet the process standard.

The prior art usually adopts the method of gas fluidization to solve this problem, but it is impossible to use gas to fluidize the material under the condition of high vacuum

Using mechanical force to turn the material is also a method, but the exchange of internal and external materials is very slow in this method. Some materials located in the center of the container may always be in the center during the turning, and there is also the problem of uneven drying and the drying degree cannot meet the standard.

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