WANG Qinghua1 ， DENG Guodong1 ， LI Dayong2
（1. National Special Superfine Powder Engineering Research Centre of China， Nanjing University of Science and Technology， Nanjing 210094， China； 2. Qingyang Chemical Industry Corporation， Liaoyang 100821， China）
Abstract： To solve the problem that continuously and automatically feeding of hexahydro-1, 3, 5-trinitro-1, 3, 5-triazine (RDX) powders was interrupted and imprecision as well as security of metering were affected by RDX powders with poor flowability and easily blocked in the bin, a safe and continuous feeding and metering device for RDX powders was designed. Flowability parameters of RDX powders were tested by a powder flow tester. The results show that the appropriate hopper parameters are that the half angle of hopper is less than 28.9°and the diameter of hopper outlet is larger than 168 mm. RDX powders can run out from the hopper stably and uniformly in the process of feeding by the device， and the measurement error is less than 1.0%.
Keywords: hexahydro-1, 3，5-trinitro-1, 3, 5-triazine powder; feeding; metering; flowability of powder
中图分类号：TQ560．5 文献标志码：A
文章编号：1008-5548（2015）04-0095-04
DOI:10.13732/j.issn.1008-5548.2015.04.022
收稿日期：2014-10-22， 修回日期：2014-11-10，在线出版时间：2015-08-26。
基金项目：国防火炸药科研专项项目，编号：AS03144。
第一作者简介：汪庆华(1989—)，男，硕士研究生，研究方向为含能材料精确计量加料技术。 E-mail：654944915@qq.com。
通信作者简介：邓国栋(1965—)，男，高级工程师，研究方向为含能材料工艺技术。 E-mail：dypdgd@126.com。
