Method for preparing submicron powder for legehenne at normal temperature, and two-way air flow screening machine special for method

Abstract

The invention discloses a method for preparing submicron powder for legehenne at normal temperature. The method comprises the following steps of: cleaning Chinese herbal medicinal decoction slices such as codonopsis pilosula, astragalus, tuckahoe, bighead atractylodes rhizome, malt, hawthorn, medicated leaven, south dodder seed, common cnidium fruit, and epimedium herb, and drying until the watercontent is less than and equal to 10 percent; crushing Chinese herbal medicines at room temperature to obtain coarse powder of which the granularity is 60 to 120 meshes; uniformly mixing the obtainedcoarse powder in a ratio; placing the obtained coarse powder in a rod mill and crushing, feeding into a two-way air flow screening machine special for the method by wind and screening to obtain powder of which the grain size is less than and equal to 25 microns, conveying the powder to a cyclone material collection device by air flow which is produced by a draught fan and collecting; and collecting powder which does not pass through a 500-mesh screen by using a funnel, conveying to the rod mill by a pipeline, and circulating and crushing again. The invention has the advantages that: the powder is prepared at normal temperature, the grain side of a finished medicine is less than and equal to 25 microns, the cell-wall breaking ratio and bioavailability are improved, and the used two-way airflow screening machine simplifies the method for preparing submicron powder for legehenne.

Description

technical field [0001] The invention relates to the field of veterinary drug preparations, in particular to a normal-temperature preparation method of superfine powder laying hen treasure; the invention also relates to a special two-way airflow screening machine used in the method. Background technique [0002] Currently used to improve the laying rate of laying hens, laying chicken treasure is a powder made from coarsely crushed raw materials Codonopsis pilosula, Astragalus root, Poria cocos, Atractylodes macrocephala, malt, hawthorn, Liushenqu, Cuscuta, Cnidium, and Epimedium. Large, coarse dosage forms, poor appearance, insufficient release of active ingredients, and low bioavailability have seriously affected the quality and therapeutic effect of traditional Chinese medicines. [0003] Traditional Chinese medicine ultrafine pulverization technology is an update and development of traditional pulverization technology. It not only retains the advantages of traditional Chin...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing ultra-fine powder layer chicken treasure at room temperature, which effectively solves the problems of high energy consumption, difficulty in accurately controlling the maximum particle size of the drug, inability to continuously produce, and excessive dust in the production process, which exist in the current production. The finished drug has the effects of quick onset, good curative effect, high bioavailability, and less clinical dosage

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