An anti-caking traditional Chinese medicine extract spray dryer

Abstract

The invention discloses an anti-caking traditional Chinese medicine extract spray dryer. A partition divides the drying cylinder into a breathing chamber above the partition and a drying chamber below the partition. The partition is provided with the breathing chamber and the drying chamber. The multiple gas ports of the drying chamber are distributed along the side wall of the drying chamber, and each gas port is provided with a movable filter plate, which is opened with the air entering the blast port and The air outlet is closed when the air exits. The anti-caking traditional Chinese medicine extract spray dryer with the above optimized design, by setting a breathing chamber in the drying cylinder, exhaling and inhaling into the drying chamber through the air port to drive the switch of the filter plate, exhaling when the atomizing nozzle sprays the mist The chemical material is isolated from the cylinder wall. When the atomizing nozzle stops, the air is sucked through the pores again, and the separated water vapor is sucked away to reduce the humidity in the drying cylinder, so as to avoid the cooling and moisture absorption of the dried powder in contact with the cylinder wall. piece.

Description

technical field [0001] The invention relates to the technical field of an anti-caking traditional Chinese medicine extract spray dryer, in particular to an anti-caking traditional Chinese medicine extract spray dryer. Background technique [0002] In the preparation process of Chinese patent medicine, it is necessary to extract the active ingredients in Chinese medicinal materials. Firstly, the Chinese herbal medicines need to be boiled into medicinal soup, and then the medicinal soup is subjected to multi-stage treatment to form a viscous slurry stream, and then the slurry material is dried to form granules. In order to achieve rapid and thorough drying of the particles, the viscous slurry is usually atomized and then fully contacted with hot air to complete instant drying. [0003] At present, the existing traditional Chinese medicine spray drying device is the application of centrifugal spray drying technology in the drying of specific materials. It uses a high-speed cen...

AI Technical Summary

Problems solved by technology

However, since the atomized material is in full contact with the hot air in the high-temperature drying chamber during work, during the process of the dried particles falling along the chamber wall, the temperature drop is likely to cause secondary moisture absorption and condensation of the powder, resulting in incomplete drying.

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