Experimental study on minimum ignition temperature and explosion characteristics of micron-sized aluminum powder

doi:10.16265/j.cnki.issn1003-3033.2019.11.016

Abstract

Abstract: In order to better prevent aluminum powder explosion, experimental study was conducted on influence sensitivity of different factors on minimum ignition temperature and explosion characteristics of micron-sized aluminum powder to reveal their influence degree. Minimum ignition temperature and explosion characteristics were tested through a dust cloud minimum ignition temperature test system and a 20L ball explosion device, respectively. The experimental results show that the smaller particles are, the larger specific surface areas will be, and the more likely aluminum powder is to be burned and exploded. The influence sensitivity of three factors on minimum ignition temperature of aluminum dust cloud ranks as particle size>dispersion pressure>concentration after they are analyzed one by one. And the rank of three factors which influence aluminum powder explosion parameters is concluded as particle size > ignition delay time > concentration after analysis on them one by one.

Key words: micron-sized aluminum powder, particle size, concentration, dispersion pressure, ignition delay time, ignition sensitivity, explosion characteristics

CLC Number:

X932

CHEN Haiyan, YAO Qingguo, ZHANG Yansong, LIU Hao, ZHANG Xingxu. Experimental study on minimum ignition temperature and explosion characteristics of micron-sized aluminum powder[J]. China Safety Science Journal, 2019, 29(11): 96-102.

References

[1] 李庆钊,王可,梅晓凝,等. 微米级铝粉的爆炸特性及其反应机理研究[J].工程热物理学报,2017,38(1): 219-225.
LI Qingzhao, WANG Ke, MEI Xiaoning,et al. Explosion characteristics and reaction mechanism of micron aluminium powder [J]. Journal of Engineering Thermophysics, 2017, 38 (1): 219-225.
[2] ZHANG Hongming, CHEN Xianfeng, ZHANG Ying, et al. Effects of particle size on flame structures through corn starch dust explosions [J]. Journal of Loss Prevention in the Process Industries, 2017,50: 7-14.
[3] 秦涧, 谭迎新, 尉存娟. 水平管道内铝粉爆炸特性的试验研究[J]. 中国安全科学学报, 2011, 21(4): 66-70.
QIN Jian, TAN Yingxin, WEI Cunjuan. Experimental study on explosion characteristics of aluminium powder in horizontal pipeline [J]. China Safety Science Journal, 2011, 21 (4): 66-70.
[4] ADDAI E K, GABEL D, KRAUSE U. Experimental investigation on the minimum ignition temperature of hybrid mixtures of dusts and gases or solvents[J]. Journal of Hazardous Materials, 2016, 301: 314-326.
[5] 陈晓坤,张自军,王秋红,等. 20 L近球形容器中微米级铝粉的爆炸特性[J].爆炸与冲击,2018,38(5): 1 130-1 136.
CHEN Xiaokun, ZHANG Zijun, WANG Qiuhong, et al. Explosion characteristics of micron aluminum powder in 20 L near spherical vessel [J]. Explosion and Impact, 2018,38 (5): 1 130-1 136.
[6] JANÈS A, VIGNES A, DUFAUD O, et al. Experimental investigation of the influence of inert solids on ignition sensitivity of organic powders[J]. Process Safety and Environmental Protection, 2014, 92(4): 311-323.
[7] DASTIDAR A G, AMYOTTE P R, PEGG M J. Factors influencing the suppression of coal dust explosions [J]. Fuel, 1997, 76(7): 663-670.
[8] UBR V, KOZIOLOVÁ E, SIVÁK L, et al. Polymer inhibitors of ABC transporter overcoming multidrug resistance: synthesis, characterization and in vitro evaluation[J]. Journal of Controlled Release, 2015, 213(1):e107-e108.
[9] 雷伟刚,毕海普,王凯全.弯管内铝粉二次爆炸及抑爆试验研究[J].中国安全科学学报,2017,27(11): 43-48.
LEI Weigang, BI Haipu, WANG Kaiquan. Experimental study on secondary explosion of aluminum powder in elbow pipeline and its suppression[J]. China Safety Science Journal, 2017,27(11): 43-48.
[10] MAY D C, BERARD D L. Fires and explosions associated with aluminum dust from finishing operations[J]. Journal of Hazardous Materials, 1987, 17(1): 81-88.
[11] LI Gang, YANG Hongxia, YUAN Chunmiao, et al. A catastrophic aluminium-alloy dust explosion in China[J]. Journal of Loss Prevention in the Process Industries, 2016, 39: 121-130.
[12] 屈姣,邓军,王秋红.密闭球形空间内超细铝粉爆炸特性研究[J].中国安全科学学报, 2019,29(7): 51-57.
QU Jiao, DENG Jun, WANG Qiuhong. Study on explosion characteristics of ultrafine aluminum powder in a closed spherical space [J]. China Safety Science Journal, 2019,29(7): 51-57.
[13] MYERS T J. Reducing aluminum dust explosion hazards: case study of dust inerting in an aluminum buffing operation[J]. Journal of Hazardous Materials, 2008, 159(1): 72-80.
[14] MARMO L, PICCININI N, DANZI E. Small magnitude explosion of aluminium powder in an abatement plant: a telling case[J]. Process Safety and Environmental Protection, 2015, 98: 221-230.
[15] 丁大玉,浦以康,袁生学,等.铝粉爆炸特性的实验研究[J].爆炸与冲击,1993,13(1): 32-40.
DING Dayu, PU Yikang, YUAN Shengxue, et al. Experimental study on explosion characteristics of aluminium powder [J].Explosion and Impact, 1993,13(1): 32-40.
[16] 陈成,胡双启,范裕如,等.铝粉的爆炸特性研究[J].化工中间体,2013,10(1): 36-38.
CHEN Cheng, HU Shuangqi, FAN Yuru, et al. Study on the explosion characteristics of aluminum powder[J].Chemical Intermediate,2013,10(1): 36-38.
[17] 丁小勇,谭迎新,秦涧,等.垂直哈特曼管与水平管道中铝粉爆炸特性[J].消防科学与技术,2012,31(6): 561-563.
DING Xiaoyong, TAN Yingxin, QIN Jian, et al. Explosion characteristics of aluminum powder in vertical Hartmann tube and horizontal pipeline[J].Fire Science and Technology,2012,31(6): 561-563.
[18] 李文霞,林柏泉,魏吴晋,等.纳米级别铝粉粉尘爆炸的实验研究[J].中国矿业大学学报,2010,39(4): 475-479.
LI Wenxia, LIN Baiquan, WEI Wujin, et al. Experimental study on nano-scale aluminum powder dust explosion[J].Journal of China University of Mining & Technology,2010,39(4): 475-479.
[19] MORRIS M D. Factorial sampling plans for preliminary computational experiments[J]. Technometrics,1991,33(2):161-174.