ZHOU Dan^1a，WANG Liqiang^1a,1b，FANG Xianqi²，LU Lixin^1a,1b，XU Limin²，GAO Weijun²

(1a.College of Mechanical Engineering;1b.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University,Wuxi 214122,China;2.Jiangsu Innovative Packaging Technology Co.Ltd,Yangzhou 225600,China)

Abstract:Taked ultrafine powder as the research object,the clean filling metering mechanical structure was designed.Based on computer fluid mechanics and orthogonal test design,the geometric parameters of the screw that affected the quality of horizontal conveying screw were determined,and the geometric parameters that obtained the best quality were determined.The results show that the order of the quality related parameters of the horizontal conveying screw is helix angle,helix groove depth and helix blade thickness.When the helix angle is 17 °～25 °,the horizontal conveying screw can obtain a larger filling efficiency.The optimal geometric parameters of the horizontal conveying screw in 25 kg valved pocket packing are D=80 mm，d=16 mm，e=2 mm，H=32 mm and α=20 °.

Keywords:ultrafine powder;horizontal conveying screw;computational fluid dynamics;filling measurement;screw design

中图分类号：TH224                              文献标志码：A

文章编号：1008-5548(2020)05-0054-06

DOI10.13732/j.issn.1008-5548.2020.05.009

收稿日期： 2020-01-07，修回日期：2020-03-21，在线出版时间：2020-07-08 10:27。

基金项目：中央高校基本科研业务费专项资金项目：编号：JUSRP21115；江苏省食品先进制造装备技术重点实验室自主资助基金资助项目，编号：FMZ201902。

第一作者简介：周丹(1995—)，女，硕士研究生，研究方向为包装工艺与机械。E-mail:zhoudan_dacy@163.com。

通信作者简介：王利强(1977—)，男，博士，教授，硕士生导师，研究方向为包装机械。E-mail:wlqcom@163.com。