Normal-temperature preparation method for ultra-micro fine Chinese pulsatilla powder and special bidirectional airflow sieving machine thereof

Abstract

The invention discloses a normal-temperature preparation method for ultra-micro fine Chinese pulsatilla powder. The method comprises the following steps of: firstly, cleaning traditional Chinese medicine Chinese pulsatilla decoction pieces, and drying the decoction pieces until the water content is less than or equal to 10 percent; crushing cut traditional Chinese medicine at normal temperature to obtain crude powder of which the granularity is 60 to 100 meshes; after milling the obtained crude powder in a rod mill, blowing the powder into a special bidirectional airflow sieving machine, sieving the powder with a 500-mesh sieve, blowing the obtained powder of which the particle size is less than or equal to 25 mum through airflow generated by a draught fan into a cyclone collector, and collecting the powder to obtain the finished product of the ultra-micro fine Chinese pulsatilla powder; and collecting the powder which does not pass through the 500-mesh sieve through a hopper, and conveying the powder through a pipe into the rod mill to be recovered and crushed. The method has the advantages that: the whole preparation process is performed at normal temperature without low temperature or other special additional conditions, the particle size of the prepared medicament is less than or equal to 25 mum, the cell wall-broken rate and the bioavailability are greatly improved, and the pharmacological effect is enhanced. Due to the adoption of the bidirectional airflow sieving machine, the preparation process of the ultra-micro fine Chinese pulsatilla powder is greatly simplified.

Description

technical field [0001] The invention relates to the field of veterinary drug preparations, in particular to a normal-temperature preparation method for ultrafine powder Pulsatillae Radix Powder; the invention also relates to a special two-way airflow sieving machine used in the method. Background technique [0002] China is a big pig raising country. With the continuous progress and development of pig farming, the survival rate and disease resistance of piglets have been greatly improved. With the change of people's consumption concept, the pursuit of green and pollution-free food has become a consumption fashion. However, if the use of antibiotics in piglet feed is reduced, it will have a serious impact on the production performance, disease resistance and survival rate of piglets. Therefore, it is necessary to seek a drug with low toxicity, no impact on human health, and the same effect as antibiotics to replace the use of antibiotics, and under actual production conditio...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing ultrafine powder Pulsatillae powder at normal temperature, which effectively solves the problems of large energy consumption, difficulty in accurately controlling the maximum particle size of the drug, inability to continuously produce, and much dust in the production process in the current production of Pulsatillae powder. The finished drug has the effects of quick onset, good curative effect, high bioavailability, and less clinical dosage

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