[1]彭于怀①,黄丽媛②,曹卫国①③,等.石松子粉尘爆炸危险性及抑爆研究[J].爆破器材,2014,43(06):16-21.[doi:10.3969/j.issn.1001-8352.2014.06.004]
　PENG Yuhuai,HUANG Liyuan,Cao Weiguo,et al.Hazards and Suppressions Research on Lycoposium Dust Explosion[J].EXPLOSIVE MATERIALS,2014,43(06):16-21.[doi:10.3969/j.issn.1001-8352.2014.06.004]
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石松子粉尘爆炸危险性及抑爆研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
43
期数:
2014年06
页码:
16-21
栏目:
基础理论
出版日期:
2014-12-20

文章信息/Info

Title:
Hazards and Suppressions Research on Lycoposium Dust Explosion
文章编号:
4807
作者:
彭于怀①; 黄丽媛②; 曹卫国①③; 郑俊杰①③; 卑凤利①③; 潘峰①③
①南京理工大学化工学院（江苏南京，210094）
②邦达诚环境监测中心（江苏）有限公司 （江苏常州，213000）
③国家民用爆破器材质量监督检验中心（江苏南京，210094）
Author(s):
PENG Yuhuai①; HUANG Liyuan②; Cao Weiguo①③; ZHENG Junjie①③;  BEI Fengli①③; PAN Feng①③
①School of Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
②Bon Contact Environment Monitoring Center (Jiangsu) Co., Ltd. (Jiangsu Changzhou, 213000)
③National Quality Supervision and Inspection Center for Industrial Explosive Materials(Jiangsu Nanjing, 210094)
关键词:
石松子粉; 粉尘爆炸; 着火温度; 爆炸压力; 爆炸指数; 抑爆
Keywords:
lycopodium;  dust explosion;  ignition temperature;  explosion pressure;  explosion index;  explosion suppression
分类号:
X932
DOI:
10.3969/j.issn.1001-8352.2014.06.004
文献标志码:
A
摘要:
为了研究粒径对石松子粉尘爆炸危险性的影响，采用GodbertGreenwald (GG)炉和20 L球爆炸装置对石松子粉尘云进行了试验，分析了粒径对爆炸特性的影响，并探讨了SiO2和NH4H2PO4对石松子粉的抑爆效果。结果表明：粒径越小的粉尘着火温度越低，潜在危险性更大；粒径小于48 μm的粉尘，在质量浓度为750 g/m3时达到最大爆炸指数22.61 MPa?m/s，其爆炸危险性为Ⅱ级，相比于粒径小于75 μm的粉尘，爆炸危险性更高；添加SiO2和NH4H2PO4后，能够显著降低石松子粉的爆炸压力和爆炸指数；与SiO2相比，NH4H2PO4具有更好的抑爆效果。
Abstract:
To investigate the influence of particle size on lycopodium dust explosion hazards, the dust explosions were experimentally studied using a GodbertGreenwald (G-G) furnace and a 20 L sphere explosion test unit, and the variation regularities of the explosion characteristic with the diameter of lycopodium were analyzed.Moreover,the effects of SiO2 and NH4H2PO4 on dust explosion suppression were also studied. The results indicate that the smaller the dust particle size, the lower the ignition temperature, and consequently the bigger thepotential hazards.Dust particle size in less than 48 μm at a mass concentration of 750 g/m3 results in a maximum explosion index of 22.61 MPa?m/s, which ranks a grade Ⅱexplosion in the risk classification exhibiting a higher grade of hazard in comparison the dust size less than 75 μm. Adding SiO2and NH4H2PO4 can efficiently reduce lycopodium dust explosion pressure and explosion index, and the explosion suppression effects of NH4H2PO4 are better than that of SiO2.

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备注/Memo

备注/Memo:
收稿日期：2014-04-10
基金项目：国家自然科学基金项目（51174047）
作者简介：彭于怀（1989~），男，硕士研究生,主要从事纳米粒子制备和粉尘爆炸方面的研究。E-mail:p252349798@163.com
通信作者：郑俊杰（1973~），女，工程师,主要从事含能材料方面的研究。E-mail:zhengjunjie1974@163.com
更新日期/Last Update: 2014-12-15