Normal-temperature preparation method for ultrafine powder hawthorn and special bilateral airflow sieving machine thereof

Abstract

The invention discloses a normal-temperature preparation method for ultrafine powder hawthorn. The method comprises the following steps of: cleaning hawthorn, and drying till the water content is less than or equal to 10 percent; smashing the hawthorn at the normal temperature to obtain coarse powder of which the granularity is 60-80 meshes; putting the coarse powder into a rod mill for smashing,conveying into the special bilateral airflow sieving machine through wind for sieving with a 500-mesh sieve, sieving to obtain powder of which the particle diameter is less than or equal to 25 micrometers, and conveying to a cyclone aggregator through airflow generated by a draught fan for collecting to obtain finished ultrafine powder coccidia powder; and collecting powder which is not sieved with the 500-mesh sieve with a funnel, and conveying to the rod mill through a pipeline for smashing circularly once again. The method has the advantages that: the entire preparation process is performed at the normal temperature without low temperature or special additional conditions; the particle diameter of prepared finished hawthorn micro powder is less than or equal to 25 micrometers, the cell-wall breaking rate and biological availability are greatly increased, and the pharmacological action of a medicament is enhanced; and due to the adoption of the bilateral airflow sieving machine, thepreparation process of ultrafine powder hawthorn is simplified, and the aim of controlling the quality standard of Chinese medicinal powder is fulfilled.

Description

technical field [0001] The invention relates to a veterinary drug additive, in particular to a normal-temperature preparation method of superfine powder hawthorn; the invention also relates to a special two-way airflow screening machine used in the method. Background technique [0002] Traditional Chinese medicine has incomparable advantages over other chemically synthesized drugs in the prevention and treatment of diseases: high safety, less toxic and side effects, more active ingredients, less harmful residues, more targets of action, can play a combined effect, and is not easy to produce drug resistance It can regulate the body's immunity and enhance the body's disease resistance while antibacterial and antiviral. Under the background that countries around the world are increasingly emphasizing food safety and calling for green and ecological conditions, it is of great practical significance to promote the application of traditional Chinese veterinary drugs for the preven...

AI Technical Summary

Problems solved by technology

Hawthorn currently used as a feed additive for livestock and poultry is mostly coarsely crushed powder, which has the disadvantages of large dosage, coarse dosage form, and poor appearance. The active ingredients cannot be fully released, and the bioavailability is low, which seriously affects the quality and therapeutic effect of traditional Chinese medicine.

[0004] Traditional Chinese medicine ultrafine pulverization technology is an update and development of traditional pulverization technology. It not only retains the advantages of traditional Chinese medicine preparation technology, but also injects new vitality into the modern production of Chinese medicine. It has broad application prospects, but there are still some problems in actual production. Problems and problems: (1) Low production efficiency and high energy consumption are the main factors restricting the large-scale production of veterinary traditional Chinese medicine ultrafine powder

In the traditional closed-circuit crushing process, when most of the materials have reached the fineness requirements, there is always a small part of coarse powder mixed in it. To further crush this part of coarse powder to the required particle size, it is necessary to greatly prolong the crushing time, so that the crushing The efficiency is reduced and the energy consumption is greatly increased; (2) There is a difference in particle size uniformity of the material after classification in winnowing classification and classification wheel classification, which greatly affects the production quality of Chinese veterinary compound superfine powder, especially when it is used in animal drinking water or granules When the material is used, it is difficult to meet the requirements due to the existence of a large number of unbroken cells

(3) In the traditional unidirectional airflow screening, when Chinese medicine is ultrafinely pulverized, as the particle size decreases, the surface area and surface energy of the material particles increase, the adsorption increases, the fluidity becomes poor, and it is easy to aggregate into large particles It is difficult to sieve and classify powders with a fineness of more than 200 mesh

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