Normal temperature preparation method of Radix Scrophulariae and licorice submicron powder, and special bidirectional airflow screener therefor

Abstract

The invention discloses a Radix Scrophulariae and licorice submicron powder having a chicken immunity enhancement effect, and a preparation method thereof. The submicron powder is composed of Radix Astragali, Radix Scrophulariae, licorice, Divaricate Saposhnikovia Root and Rhizoma Atractylodis Macrocephalae. The preparation method comprises the following steps: respectively picking the above components, removing impurities, carrying out coarse crushing, and screening by a 24 mesh sieve; weighing the obtained crude powders according to formula proportions, mixing, and baking in a 60DEG C drying box to the water content of below 7%; and crushing the obtained dried mixture in a rod mill, sending to a special bidirectional airflow screener through a fan for 300 mesh sieve screening, conveying the screened powder to a cyclone collector to obtain the Radix Scrophulariae and licorice submicron powder, collecting the unscreened powder by a funnel, and conveying the collected powder to the rod mill through a pipeline for secondary crushing. The particle size of 90% of the processed powder is less than 30mum. The Radix Scrophulariae and licorice submicron powder has the advantages of reasonable formula, small addition, undoubted effects, easy method implementation, and large-scale production. The preparation method enables the whole preparation process to be carried out at normal temperature and the cell wall breaking rate to be improved; and the special bidirectional airflow screener simplifies the preparation technology of the Radix Scrophulariae and licorice submicron powder.

Description

technical field [0001] The invention relates to a preparation technology of superfine powder, in particular to a dosage form capable of enhancing the immunity of chickens, and also relates to a preparation method of the superfine powder and a special two-way airflow sieving machine used in the method. Background technique [0002] At present, most of the traditional Chinese medicines in clinical application are ordinary powders, which have the disadvantages of coarse dosage form, large dosage, incomplete release of active ingredients, and low bioavailability, which seriously affect the quality and curative effect of traditional Chinese medicines. [0003] Traditional Chinese medicine superfine powder technology is a new technology developed in recent years that applies modern physical or chemical methods to micronize materials. Generally, the cell wall breaking rate of Chinese medicinal materials is ≥95%, so as to break through the original way that the active ingredients mus...

AI Technical Summary

Problems solved by technology

[0004] Although Chinese medicine superfine powder has many advantages, there are still some problems and difficulties in actual production: (1) Low production efficiency and high energy consumption are the main factors restricting the large-scale production of veterinary Chinese medicine superfine powder

In the traditional closed-circuit crushing process of the rod mill, when most of the materials have reached the fineness requirement, there is always a small part of coarse powder mixed in it. To further crush this part of coarse powder to meet the particle size requirement, it is necessary to prolong the crushing time so that the crushing The efficiency is low, and the energy consumption is greatly increased; (2) There is poor material uniformity after air classification and grading wheel classification, which greatly affects the production quality of Chinese veterinary medicine ultrafine powder; (3) Traditional one-way airflow screening, Due to the ultra-fine pulverization, as the particle size decreases, the surface area of ​​the material particles increases, the adsorption property increases, the fluidity becomes poor, and it is easy to aggregate into large particles, which makes it difficult to sieve and classify the powder with a fineness of more than 200 mesh.

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