Experimental research on suppression of NH4H2PO4 on sucrose dust explosion

doi:10.16265/j.cnki.issn1003-3033.2020.04.007

Abstract

Abstract: In order to study suppression effects of NH₄H₂PO₄ on sucrose dust explosion, the maximum explosion pressure p_max and maximum rate of pressure rise(dp/dt_max) of NH₄H₂PO₄-sucrose mixed dust were analyzed through experiment with a 20 L spherical explosion device. The results show that NH₄H₂PO₄can reduce p_max and (dp/dt)_max of sucrose dust and delay the time they take to reach peaks, thus weakening intensity of sucrose dust explosion. For sucrose dust whose mass concentration are 200, 350, 500 and 750 g/m³, they would be completely inert when mass fraction of NH₄H₂PO₄ is 8%, 14%, 14% and 13% respectively. That of NH₄H₂PO₄ at different particle sizes (48-74, 38-47, 25-37 μm) which makes 350 g/m³ sucrose dust completely inert is 14%, 13% and 11% respectively. Adding NH₄H₂PO₄ can effectively reduce damage of sucrose dust explosion, and within a certain range of particle size, the smaller it is, the better suppression effect there will be.

Key words: sucrose dust explosion, maximum explosion pressure, NH₄H₂PO₄, suppression effect, explosion characteristic

CLC Number:

X932

QIN Xiaoling, LI Xiaoquan. Experimental research on suppression of NH₄H₂PO₄ on sucrose dust explosion[J]. China Safety Science Journal, 2020, 30(4): 41-46.

References

[1] 唐文文, 陈先锋, 牛奕, 等. NH₄H₂PO₄和SiO₂粉体对铝粉火焰传播特性的影响[J]. 中国安全科学学报, 2017, 27(8): 44-49.
TANG Wenwen, CHEN Xianfeng, NIU Yi, et al.Effect of sodium bicarbonate and silicon dioxide on characteristicsof aluminum dust flame propagation[J]. China Safety Science Journal, 2017, 27(8): 44-49.
[2] 裴凤娟, 胡双启, 叶亚明, 等. 粉末阻燃剂对钛粉燃烧抑制的实验研究[J]. 无机盐工业, 2017, 49(4): 61-63.
PEI Fengjuan, HU Shuangqi, YE Yaming, et al. Experimental study on combustion inhibition of titanium powder bypowder flame retardant[J]. Inorganic salt industry, 2017, 49(4): 61-63.
[3] 王玉杰, 陈曦, 陈先锋, 等. 碳酸氢钠粉体粒径对铝粉火焰传播特性的影响[J]. 中国安全科学学报, 2016, 26(3): 53-58.
WANG Yujie, CHEN Xi, CHEN Xianfeng, et al. Effect of sodium bicarbonate particle size on characteristics of aluminumdust flame propagation[J]. China Safety Science Journal, 2016, 26(3): 53-58.
[4] JIANG Haipeng, BI Mingshu, GAO Wei, et al. Inhibition of aluminum dust explosion by NaHCO₃ with different particle size distributions [J]. Journal of Hazardous Materials, 2018, 334: 902-912.
[5] JIANG Haipeng, BI Mingshu, LI Bei, et al. Inhibition evaluation of ABC powder in aluminum dust explosion [J]. Journal of Hazardous Material,2019, 361: 373-282.
[6] JIANG Haipeng, BI Mingshu, LI Bei, et al. Flame inhibition of aluminum dust explosion by NaHCO₃and NH₄H₂PO₄[J]. Combustion and Flame, 2019, 200: 97-114.
[7] 李亚男, 焦枫媛, 闻利群. 碳酸钙对金属粉尘最小点火能的影响研究[J]. 中北大学学报: 自然科学版, 2014, 35(5): 594-598.
LI Ya'nan, JIAO Fengyuan, WEN Liqun. Effect of CaCO₃ on the minimum ignition energy of metal dust[J]. Journal of Zhongbei University: Nature and Science, 2014, 35(5): 594-598.
[8] 谭迎新, 李亚男. 磷酸二氢铵对铝粉的爆炸抑制研究[J]. 中北大学学报:自然科学版, 2015, 36(4): 458-461.
TAN Yingxin,LI Ya'nan. Study on explosion inhibition of aluminum powder by NH₄H₂PO₄ [J]. Journal of Zhongbei University: Nature and Science, 2015, 36(4): 458-461.
[9] SONG Yifan, BOURAS Nassim, ZHANG Qi. Explosion energy of methane/deposited coal dust and inert effects of rock Dust[J]. Fuel, 2018, 228: 112-122.
[10] 叶亚明, 胡立双, 胡双启, 等. 碳粉尘云最小点火能及其抑爆研究[J]. 无机盐工业, 2017, 49(2): 64-66.
YE Yaming, HU Lishuang, HU Shuangqi, et al. Study on minimum ignition energy and explosion suppression technology ofcarbon dust cloud[J]. Inorganic Salt Industry, 2017, 49(2): 64-66.
[11] AZAM S, MISHRA D P. Effects of particle size, dust concentration and dust-dispersion-air pressure on rock dust inertant requirement for coal dust explosion suppression in underground coal mines[J]. Process Safety and Environmental Protection, 2019, 126: 35-43.
[12] WANG Qiuhong, WEN Hu, WANG Qingsong, et al.Inhibiting effect of Al(OH)₃ and Mg(OH)₂ dust on the explosions of methane-air mixtures in closed vessel[J]. Technological Sciences, 2012, 55(5): 1 371-1 375.
[13] 肖国清, 王琼慧, 梁李, 等. 糖粉粒径对其爆炸特性影响的试验研究[J]. 中国安全科学学报, 2015, 25(9): 85-90.
XIAO Guoqing, WANG Qionghui, LIANG Li, et al. Experimental study on influence of particle size on explosive characteristics of sugar dust[J]. China Safety Science Journal, 2015, 25(9): 85-90.
[14] 梁乐乐. 蔗糖粉尘爆炸试验及分布数值模拟研究[D]. 南宁: 广西大学, 2019.
LIANG Lele. Experimental study on sucrose dust explosion experiment and distribution numerical simulation[D]. Nanning:Guangxi University, 2019.
[15] GB/T16426—1996, 粉尘云最大爆炸压力和最大压力上升速率测定方法[S].
GB/T16426-1996, Determination of maximum explosion pressure and maximum rate of pressure rise of dust cloud[S].
[16] 王琼慧. 蔗糖粉尘爆炸特性研究[D]. 成都: 西南石油大学, 2016.
WANG Qionghui. Study on explosive characteristics of sugar dust[D]. Chengdu: Southwest Petroleum University, 2016.
[17] ISO 6184/1-1985, Determination of explosion indices of combustible dusts in air[S].
[18] 王菲. 蔗糖粉尘的抑爆试验及机理研究[D]. 南宁: 广西大学, 2019.
WANG Fei. Study on explosion suppression test and mechanism of sucrose dust[D]. Nanning: Guangxi University, 2019.
[19] YANG Man, CHEN Xianfeng, YUAN Bihe, et al. Inhibition effect of ammonium dihydrogen phosphate on the thermal decomposition characteristics and thermal sensitivity of ammonium nitrate[J]. Journal of Analytical and Applied Pyrolysis, 2018, 134: 195-201.

Experimental research on suppression of NH₄H₂PO₄ on sucrose dust explosion

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