Closed boiling drying system for plant extracts 1000kg

Closed boiling drying system for plant extracts 1000kg

Plant extract is a product formed by extracting and concentrating one or more active ingredients from plants through physical and chemical extraction and separation processes according to the needs of the extracted final product, without changing the structure of its active ingredients. According to the different components extracted from plants, they form glycosides, acids, polyphenols, polysaccharides, terpenes, flavonoids, alkaloids, etc; According to different characteristics, it can be divided into vegetable oil, extract, powder, crystalline lens, etc.

Tea extract is an active ingredient extracted from tea leaves, mainly including tea polyphenols (catechins), caffeine, aromatic oils, water, minerals, pigments, carbohydrates, proteins, amino acids, vitamins, etc. Among them, tea polyphenols are the main active ingredients, and aromatic oils are the main components that affect external quality.

Chinese herbal extract is a type of traditional Chinese medicine extract that appears as mucus at room temperature. It is commonly used to alleviate human pain and is widely used in various medical fields. Volatile oil varieties of traditional Chinese medicine (such as peppermint, peony bark, Houttuynia cordata, etc.) can cause volatile oil to evaporate during drying; And thermosensitive varieties of traditional Chinese medicine (such as Danshen, Dihuang, Danggui, etc.) are prone to oxidation of their active ingredients during drying.

When using air flow drying methods (such as air flow drying, fluidized bed drying, etc.) to dry plant extracts, there are problems such as oxidation and oil volatilization. When using vacuum drying methods (such as vacuum drying oven, rake dryer, etc.) to dry plant extracts, although there is no oxidation problem, the problem of oil volatilization is more serious.

The closed boiling drying system for plant extracts effectively prevents the active ingredients of plant extracts from being oxidized and reduces the volatilization of volatile oils.

The technical solution adopted by this utility model to solve the above problems is a closed boiling drying system for plant extracts, comprising a circulating fan, a boiling bed, and a heater. The boiling bed is equipped with bottom powder, and the inlet of the heater is connected to the outlet of the circulating fan through a pipeline. The pipeline is equipped with an inert gas inlet; The outlet of the heater is connected to the inlet of the fluidized bed, and the heated inert gas enters through the inlet of the fluidized bed and comes into contact with the bottom powder, making the bottom powder fluidized; The fluidized bed is equipped with a spray atomization device, which atomizes the plant extract liquid and sprays it into the fluidized bed, and fully mixes it with the boiling bottom powder; The outlet of the fluidized bed is connected to the inlet of the condenser, and the outlet of the condenser is connected to the inlet of the circulating fan