Drying method of traditional Chinese medicine thick paste

Abstract

The invention relates to a drying method of traditional Chinese medicine thick paste. The method comprises the steps that traditional Chinese medicine extract to be dried is concentrated into thick paste with relative density of above 1.10; the thick paste is paved into a dry container whose upper part is irradiated by light wave, and the thickness is controlled to be 2mm to 5mm; the container is vacuumized until the vacuum degree is above 0.6MPa; light wave irradiation is started to heat and dry the material for 45 minutes to 180 minutes, and a dry product is obtained. In addition, electric heating or steam heating is added at a lower part, so as to dry the thick paste. Due to the fact that the adopted light wave can directly penetrate through the material, compared with a drying method which adopts electric heating or steam heating, according to the drying method of traditional Chinese medicine thick paste, the drying speed is higher, the heating uniformity is good, the defects of no easiness in microwave heating control and electromagnetic leakage are overcome, a metal structure is allowed to exist in the equipment during work, no-load heating and static heating of the equipment are allowed, particularly the auxiliary electric heating or steam method is added at the lower part, heating is carried out simultaneously up and down, the drying time is obviously shortened, and a significant effect in keeping heat sensitive components and easily oxidized components during a drying process is achieved. The operation and control are simple, and the large-scale production is suitable.

Description

[0001] The invention relates to the technical field of drying and processing of prescription or single Chinese medicine extract, in particular to a drying method of traditional Chinese medicine thick ointment. Background technique [0002] Traditional Chinese medicine extracts and thick pastes have complex active ingredients, including high-temperature-resistant ingredients, heat-sensitive ingredients, and easily oxidized ingredients. If the drying method is not selected properly, it will easily cause loss of active ingredients and affect the properties, quality and efficacy of the product. At present, the commonly used drying methods for the thick paste of traditional Chinese medicine extracts include steam vacuum drying, microwave vacuum drying, freeze vacuum drying, spray drying, etc. [0003] Freeze vacuum drying is generally used for drying high value-added products due to low production capacity and high production costs; microwave vacuum drying is difficult to control th...

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Problems solved by technology

[0003] Freeze vacuum drying is generally used for drying high value-added products due to low production capacity and high production costs; microwave vacuum drying is more difficult to control the uniformity of microwave distribution , It is easy to cause the inside of the material to zoom due to local high temperature, and the moisture index is not easy to reach the standard; although steam vacuum drying can achieve the drying target, but due to the long drying time, it is not suitable for heat-sensitive components, and freeze-drying or spray-drying is generally used to solve the problem

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