HUA Zhi1， CUI Rui2
（1. The first Clinical Medical College， Henan University of Chinese Medicine, Zhengzhou 450000, China；2. College of Resources and Environmental Engineering， Wuhan University of Science and Technology， Wuhan 430081， China）
Abstract: In order to explore the feasibility of preparing astragalus ultrafine powder by horizontal stirring mill, the horizontal stirring mill was transformed into a circulating grinding and condensing device, and the effects of grinding medium type, grinding medium size, medium filling rate, stirring rate and grinding time on particle size characteristics of powdered products were investigated. The results show that under the conditions of grinding medium type of 1 mm corundum ball, medium filling rate of 45%, stirring rate of 2 250 r/min, and grinding time of 20 min, astragalus ultrafine powder with d90 and d50 of 10.46 μm and 2.95 μm can be obtained, and the particle size of the product is uniform without burning and oxidation. The active components of astragalus are protected.
Keywords: astragalus; Chinese medicine; superfine powder; mixing mill
中图分类号： R282.4 文献标志码：A
收稿日期： 2022-04-20， 修回日期：2022-06-13，在线出版时间：2022-11-01。
基金项目：国家自然科学基金项目，编号：51704214。
第一作者简介：华知（1992—），女，主治医师，硕士研究生，研究方向为中西医结合治疗心血管疾病。E-mail： 704656125@qq.com。
文章编号：1008-5548（2022）06-0064-06
DOI:10.13732/j.issn.1008-5548.2022.06.008
