Preparation method of ultrafine powder dried orange peel at normal temperature

Abstract

The invention discloses a preparation method of ultrafine powder dried orange peel at normal temperature, which comprises the following steps: air drying the traditional Chinese medicine dried orange peel to less than or equal to 10% of moisture content; crushing the dried orange peel at normal temperature to obtain the coarse powder; crushing the coarse powder and sending to a special bidirectional air-flow screening machine through wind for sieving with a 500 meshes sieve, conveying the obtained powder with less than 25 micrometers of particle size by air-flow generated by an induced draught fan to a cyclone material collector for collecting to obtain the ultrafine powder dried orange peel product; wherein the powder which is not passed through the 500 meshes sieve is collected by a tunnel and conveyed into a rod mill through a pipeline for secondary circular crushing. The invention has the advantages that the whole preparation process is carried out under the state of normal temperature without low temperature or special additional condition; the particle size of the finished product dried orange peel ultrafine powder is less than or equal to 25 micrometers, so that the cell wall-broken rate and the biological utilization degree can be substantially increased, and the pharmacological effect of the medicine is enhanced. The bidirectional air-flow screening machine used in the invention simplifies the preparation technology of the ultrafine powder dried orange peel, and the purpose of controllable quality standard of traditional Chinese medicine powder can be realized.

Description

technical field [0001] The invention relates to a veterinary drug additive, in particular to a method for preparing ultrafine powdered dried tangerine peel at room temperature; the invention also relates to a special bidirectional airflow screening machine used for the method. Background technique [0002] With the development of society and the progress of economy, the safety of animal products has attracted more and more attention. To ensure the health and safety of animal products, we must start from the source of animal husbandry production, and strictly control and eliminate antibiotics in the production process. , Chinese herbal medicine as a feed additive is more and more liked by farmers and friends, but there are few Chinese medicines that can not only improve the production performance of livestock and poultry but also increase immunity. The original name of tangerine peel is tangerine pomelo, orange peel, which was first recorded in <Shen Nong's Materia Medica&...

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional Chinese medicine additives used in livestock and poultry are all coarse powder powders, which have problems such as large dosage, coarse dosage form, poor appearance, insufficient release of active ingredients, and low bioavailability, which seriously affect the quality of traditional Chinese medicine and clinical health effects. , and cannot be evenly mixed with pellet feed

[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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