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[1]仝校炎,吕辰,崔新荣,等.超细CaCO3惰化剂对铝合金抛光伴生粉尘爆炸的防控效果*[J].中国安全生产科学技术,2022,18(9):140-146.[doi:10.11731/j.issn.1673-193x.2022.09.020]
　TONG Xiaoyan,LYU Chen,CUI Xinrong,et al.Prevention and control effect of ultrafine CaCO3 inerting agent on dust explosion associated with aluminum alloy polishing[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(9):140-146.[doi:10.11731/j.issn.1673-193x.2022.09.020]
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超细CaCO3惰化剂对铝合金抛光伴生粉尘爆炸的防控效果*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年9期
页码:
140-146
栏目:
职业安全卫生管理与技术
出版日期:
2022-09-30

文章信息/Info

Title:
Prevention and control effect of ultrafine CaCO3 inerting agent on dust explosion associated with aluminum alloy polishing
文章编号:
1673-193X(2022)-09-0140-07
作者:
仝校炎; 吕辰; 崔新荣; 焦勇; 楼琴霞; 王信群
（1.中国计量大学 质量与安全工程学院，浙江 杭州 310018；
2.绿盾注册安全工程师事务所，浙江 嘉兴 314599）
Author(s):
TONG Xiaoyan;  LYU Chen;  CUI Xinrong;  JIAO Yong;  LOU Qinxia;  WANG Xinqun
(1.College of Quality and Safety Engineering,China Jiliang University,Hangzhou Zhejiang 310018,China;
2.Lvdun Certified Safety Engineers Firm,Jiaxing Zhejiang 314599,China)
关键词:
抛光废弃物粉尘; 点燃敏感度; 火焰传播; 惰化
Keywords:
polishing waste dust;  ignition sensitivity;  flame propagation;  inerting
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2022.09.020
文献标志码:
A
摘要:
为探究超细粉体惰化剂对铝合金抛光伴生粉尘爆炸特性的影响规律，利用标准化实验装置及自行搭建的实验平台，在对爆炸基本参数进行测试的基础上，分别研究超细CaCO3粉体对抛光废弃物粉尘点燃敏感度的钝化作用以及对爆炸火焰传播进程的惰化效果，并在相同条件下与同等粒径高纯度铝粉的实验效果进行比对。研究结果表明：铝合金抛光废弃物粉尘最小点火能量为280 mJ，而同等粒径高纯度铝粉最小点火能量为35 mJ；在铝合金抛光废弃物粉尘质量浓度为300 g/m3条件下，发生爆炸的火焰传播速度峰值为7.4 m/s，约为高纯度铝粉的57%，铝合金抛光废弃物粉尘的爆炸敏感度及猛烈度均低于高纯度铝粉；当超细CaCO3粉体的惰化比为30%时，可将铝合金抛光废弃物粉尘的最小点火能量钝化至约1 J，爆炸火焰失去持续传播能力，惰化作用效果充分显现。
Abstract:
In order to study the influence of ultrafine powder inerting agent on the explosion characteristics of dust associated with aluminum alloy polishing,the standardized experimental equipment and self-designed experimental platform were used to test the basic explosion parameters.The passivation effect of ultrafine CaCO3 powder on the ignition sensitivity of polishing waste dust and the inerting effect on the propagation process of explosion flame were studied respectively,and the experimental results were compared with those of high purity aluminum powder with similar particle size under the same conditions.The results showed that the minimum ignition energy of aluminum alloy polishing waste dust was 280 mJ,and the minimum ignition energy of high purity aluminum powders with similar particle size was 35 mJ.When the mass concentration of aluminum alloy polishing waste dust was 300 g/m3,the peak flame propagation velocity of explosion was 7.4 m/s,which was about 57% of that of high purity aluminum powder.Both the explosion sensitivity and intensity of aluminum alloy polishing waste dust were lower than those of high purity aluminum powder.When the inerting ratio of ultrafine CaCO3 powder was 30%,the minimum ignition energy of aluminum alloy polishing waste dust could be passivated to about 1 J,the explosion flame lost its continuous propagation ability,and the inerting effect was fully demonstrated.

参考文献/References:

［1］范宝春,丁大玉,浦以康,等.球形密闭容器中铝粉爆炸机理的研究［J］.爆炸与冲击,1994,14(4):148-156. FAN Baochun,DING Dayu,PU Yikang,et al.The investigation of aluminum dust explosion in a spherical closed vessel［J］.Explosion and Shock Waves,1994,14(4):148-156.
［2］胡东涛,陈先锋,陈曦.不同粒径铝粉火焰传播特性试验研究［J］.中国安全科学学报,2016,26(8):41-45. HU Dongtao,CHEN Xianfeng,CHEN Xi.Experimental study on aluminum dust flame propagation characteristics［J］.China Safety Science Journal,2016,26(8):41-45.
［3］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,2017,38(1):219-225. LI Qingzhao,WANG Ke,MEI Xiaoning,et al.Investigation of explosion characteristics and reaction mechanism of micro-aluminum powder［J］.Journal of Engineering Thermo-physics,2017,38(1):219-225.
［4］丁建旭,杜群贵,吴雨蒙，等.铝粉分散过程中粒径效应的三维数值研究［J］.中国安全生产科学技术,2019,15(3):37-43. DING Jianxu,DU Qungui,WU Yumeng，et al.3D numerical study on particle size effect in dispersion process of aluminum dust［J］.Journal of Safety Science and Technology,2019,15(3):37-43.
［5］黄子超.抛光铝粉爆炸及ABC粉体抑爆特性的实验研究［J］.中国安全生产科学技术,2020,16(7):119-124. HUANG Zichao.Experimental study on explosion of polished aluminum powder and explosion suppression characteristics of ABC powder［J］.Journal of Safety Science and Technology,2020,16(7):119-124.
［6］张凤,汪佩兰,王丽琼.纳米铝粉对烟火药剂热安全性影响研究［J］.中国安全生产科学技术,2009,5(3):47-50. ZHANG Feng,WANG Peilan,WANG Liqiong.Effects on thermal safety properties of pyrotechnics by nano-aluminum［J］.Journal of Safety Science and Technology,2009,5(3):47-50.
［7］BAGARIA P,PRASAD S,SUN J Z,et al.Effect of particle morphology on dust minimum ignition energy［J］.Powder Technology,2019,355（10）:1-6.
［8］SERRANO J,RATKOVICH N,MUNOZ F,et al.Explosion severity behavior of micro/nano-sized aluminum dust in the 20L sphere:Influence of the particle size distribution (PSD) and nozzle geometry［J］.Process Safety and Environmental Protection,2021,152:1-13.
［9］胡栋,叶松,吴旌贺,等.铝粉点火微观机理的光谱研究［J］.高压物理学报,2006,20(3):237-242. HU Dong,YE Song,WU Jinghe,et al.The spectrum studies on micro-mechanism of shock ignition for aluminum［J］.Chinese Journal of High Pressure Physics,2006,20(3):237-242.
［10］MARMOA L,RICCIOB D,DANZI E.Explosibility of metallic waste dusts［J］.Process Safety and Environmental Protection,2017,107:69-80.
［11］韩波,李刚,马赫,等.机械加工伴生粉尘爆炸危险性分析［J］.中国安全科学学报，2018,28(9):51-55. HAN Bo,LI Gang,MA He,et al.Analysis of explosion risk of dust from mechanical processing ［J］.China Safety Science Journal,2018,28(9):51-55.
［12］BAGARIA P,ZHANG J Q,YANGE T et al.Effect of dust dispersion on particle integrity and explosion hazards［J］.Journal of Loss Prevention in the Process Industries,2016,44:424-432.
［13］丁建旭,杜群贵,吴雨蒙,等.粉尘粒径对多孔环形喷嘴分散特征的影响［J］.消防科学与技术,2019,38(5):603-606. DING Jianxu,DU Qungui,WU Yumeng,et al.Effect of dust particle size on the dispersion characteristics of perforated annular nozzle［J］.Fire Science and Technology,2019,38(5):603-606.
［14］ADDAI E K,GABEL D,KRAUSE U.Experimental investigations of the minimum ignition energy and the minimum ignition temperature of inert and combustible dust cloud mixtures［J］.Journal of Hazardous Materials,2016,307:302-311.
［15］AMYOTTE P.Solid inertants and their use in dust explosion prevention and mitigation［J］.Journal of Loss Prevention in the Process Industries,2006,19:161-173.
［16］雷伟刚,毕海普，王凯全.铝粉抑爆剂适用性能评估研究［J］.安全与环境工程,2018,25(2):121-125. LEI Weigang,BI Haipu,WANG Kaiquan.Applicability evaluation of the explosion suppressant of aluminum powder［J］.Safety and Environmental Engineering,2018,25(2):121-125.
［17］BU Yajie,LI Chang,AMYOTTE P,et al.Moderation of Al dust explosions by micro- and nano-sized Al2O3 powder［J］.Journal of Hazardous Materials,2020,381:120968.
［18］靳红旺,郑立刚,朱小超,等.竖直管道中氧化铝抑制铝粉爆炸特性研究［J］.化工学报,2020,71(4):1929-1939. JIN Hongwang,ZHENG Ligang,ZHU Xiaochao,et al.Inhibition effect of alumina onaluminum powder explosion characteristics in vertical duct［J］.Journal of Chemical Industry and Engineering,2020,71(4):1929-1939.

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备注/Memo

备注/Memo:
收稿日期： 2022-05-24
* 基金项目： 浙江省自然科学基金项目（LQ20E040005）
作者简介： 仝校炎，硕士研究生，主要研究方向为安全防护装备。
通信作者： 王信群，博士，教授，主要研究方向为工业爆炸控制技术。
更新日期/Last Update: 2022-10-14