[1]邓国栋①,刘宏英①,牛建林②,等.超细RDX的真空冷冻干燥技术研究[J].爆破器材,2013,42(03):16-20.[doi:10.3969/j.issn.1001-8352.2013.03.004]
　DENG Guodong,LIU Hongying,NIU Jianlin,et al.Study on Vacuum Freezedrying Technology for the Superfine RDX Powder[J].EXPLOSIVE MATERIALS,2013,42(03):16-20.[doi:10.3969/j.issn.1001-8352.2013.03.004]
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超细RDX的真空冷冻干燥技术研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
42
期数:
2013年03
页码:
16-20
栏目:
基础理论
出版日期:
2013-06-20

文章信息/Info

Title:
Study on Vacuum Freezedrying Technology for the Superfine RDX Powder
文章编号:
4566
作者:
邓国栋①; 刘宏英①; 牛建林②; 李强②
①南京理工大学国家特种超细粉体工程技术研究中心（江苏南京，210094）
②山西北方兴安化学工业有限公司(山西太原，030008）
Author(s):
DENG Guodong①; LIU Hongying①;  NIU Jianlin②; LI Qiang②
①National Special Superfine Powder Engineering Research Centre, Nanjing University of Science and Technology(Jiangsu Nanjing, 210094)
②Shanxi North Xing’an Chemical Industry Co. Ltd (Shanxi Taiyuan, 030008)
关键词:
超细RDX; 真空冷冻干燥; 升华; 分散性; 安全
Keywords:
RDX superfine powder;  vacuum freezedrying;  sublimation;  dispersion;  safety
分类号:
TQ564 TJ55
DOI:
10.3969/j.issn.1001-8352.2013.03.004
文献标志码:
A
摘要:
为防止超细RDX干燥后结块，并确保干燥过程安全，该文采用真空冷冻干燥方法对超细RDX浆料进行干燥处理。文章介绍了真空冷冻干燥设备的工作原理。通过实验,研究了影响RDX真空冷冻干燥过程效率的主要因素，获得了RDX冷冻干燥工艺曲线。RDX真空冷冻干燥过程合适的工艺条件：RDX制品厚度≤3mm，预冻温度－40℃左右，预冻时间2h，冷凝器温度－60℃左右，干燥箱内的压力（真空度）10Pa左右，升华干燥温度－10℃，解析干燥温度40℃，干燥过程总时间19h。实验结果表明：在合适的工艺条件下，RDX的真空冷冻干燥过程安全、稳定可控；其冻干制品水的质量分数≤0.51%，疏松多孔、无结块、分散性好。
Abstract:
In order to prevent the superfine RDX powders from agglomeration after drying and to ensure the safety of the drying process, the vacuum freeze drying method was adopted for the drying of the superfine RDX slurry. The operation principles of vacuum freezedrying machine were expounded in detail. The influence factors for the RDX drying efficiency was studied through the vacuum freeze drying experiment of the superfine RDX and corresponding RDX vacuum freezedrying process curve was obtained. The suitable RDX vacuum freezedrying conditions were determined as RDX product thickness≤3mm, the prefreezing temperature of －40℃, the prefreezing time of 2h, the condenser temperature of －60℃, the pressure(vacuum) of dryer of 10Pa, the sublimation process temperature of －10℃, the parsing process temperature of 40℃, and total drying time of 19h. The experiment results showed that under suitable process conditions, the RDX vacuum freezedrying process was safely and stably controlled. The vacuum freezedried superfine RDX powder having a moisture content of ≤0.51% and no agglomeration is porous and easy to be dispersed.

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备注/Memo

备注/Memo:
收稿日期：2012-11-12作者简介：邓国栋（1965~），男，高级工程师，研究方向：含能材料加工及微纳米技术。
更新日期/Last Update: 2013-06-27