Experimental Study on Suppression of Coal Dust Combustion by Inert Medium

GU Gongtian; WANG Fei; WANG Cheng; HAN Jinxin

Safety in Coal Mines > 2020 > 51(3): 28-31,37.

GU Gongtian, WANG Fei, WANG Cheng, HAN Jinxin. Experimental Study on Suppression of Coal Dust Combustion by Inert Medium[J]. Safety in Coal Mines, 2020, 51(3): 28-31,37.

Citation:

GU Gongtian, WANG Fei, WANG Cheng, HAN Jinxin. Experimental Study on Suppression of Coal Dust Combustion by Inert Medium[J]. Safety in Coal Mines, 2020, 51(3): 28-31,37.

Citation:

GU Gongtian, WANG Fei, WANG Cheng, HAN Jinxin. Experimental Study on Suppression of Coal Dust Combustion by Inert Medium[J]. Safety in Coal Mines, 2020, 51(3): 28-31,37.

Experimental Study on Suppression of Coal Dust Combustion by Inert Medium

More Information

Published Date: March 19, 2020

Graphical Abstract

Abstract

Abstract

The study aims to analyze the effect of inert medium on coal combustion and effectively prevent spontaneous combustion of coal dust. Thermal analyzer and gas chromatograph were used to measure changes of quality and concentration of CO and CO₂. The inert mediums are H₂O, NH₄H₂PO₄ and CaCO₃. Tests of single inert medium, NH₄H₂PO₄ and CaCO₃ with different proportions and particle sizes on the inhibition of combustion were conducted. The results show that the inhibition effect of NH₄H₂PO₄ and CaCO₃ mixture is better than that of H₂O and CaCO₃ but weaker than NH₄H₂PO₄ alone. The effect of inert medium in the process of instantaneous explosion and slow oxidation is not identical and there is no synergistic suppression effect on coal dust combustion. With the decrease of the size of NH₄H₂PO₄ , the inhibition performance is enhanced.
- coal dust,
- heating and combustion,
- inert medium,
- inhibition performance,
- different particle sizes

FullText(HTML)

References (17)

References

[1]	邓军,李贝,李珍宝,等.预报煤自燃的气体指标优选试验研究[J].煤炭科学技术,2014,42(1):55-59.
[2]	Onifade M, Genc B. Spontaneous combustion of coals and coal-shales[J]. International Journal of Mining Science & Technology, 2018,28(6):94-101.
[3]	伍毅,贺元骅,黄卫星.液固两相惰性介质对煤粉爆炸惰化的实验研究[J].消防科学与技术,2014,33(6):601-604.
[4]	曾瑜,陈志,蒯念生,等.基于缓和原则的粉尘爆炸风险控制研究[J].中国安全科学学报,2011,21(6):72.
[5]	古全忠,齐庆新,姚海飞.国外岩粉抑制煤尘爆炸和传播的应用研究[M].北京:煤炭工业出版社,2017:2-4.
[6]	任一丹,刘龙,袁旌杰,等.粉尘爆炸中惰性介质抑制机理及协同作用[J].消防科学与技术,2015,34(2):158-162.
[7]	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.
[8]	Dong Guang, Fan Baochun, Xie Bo, et al. Experimental investigation and numerical validation of explosion suppression by inert particles in large-scale duct[J]. Symposium on Combustion, 2005, 30(2):2361-2368.
[9]	Song Y, Nassim B, Zhang Q. Explosion energy of methane/deposited coal dust and inert effects of rock dust[J]. Fuel, 2018, 228:112-122.
[10]	梁天水.超细水雾灭火有效性的模拟试验[D].合肥:中国科学技术大学,2012.
[11]	刘红威,王飞.井下细水雾防灭火技术应用现状及发展趋势[J].煤炭科学技术,2015,43(10):86-92.
[12]	郜二刚,李社红,吴代赦,等.基于发热量的中国煤炭碳含量研究[J].地球与环境,2014,42(1):95-101.
[13]	A Askarova, S Bolegenova, V Maximov, et al. Modeling the processes of combustion products formation in the coal-dust flame[J]. Physical Sciences and Technology, 2016, 3(2): 49-56.
[14]	Yang M, Chen X, Yuan B, et al. Inhibition Effect of Ammonium Dihydrogen Phosphate on the Thermal Decomposition Characteristics and Thermal Sensitivity of Ammonium Nitrate[J]. Journal of Analytical & Applied Pyrolysis, 2018, 134: 195-201.
[15]	赵乘寿,宫聪,汪鹏,等.含磷酸二氢铵细水雾灭火有效性研究[J].消防科学与技术,2011,30(9):822.
[16]	颜龙,徐志胜,徐彧,等.典型硼化合物与磷酸二氢铵协效阻燃松木的燃烧性能及热解动力学研究[J].中国安全生产科学技术,2015(3):19-23.
[17]	甘媛,蒯念生,刘龙,等.碳酸钙对粉尘爆炸抑制效力的实验研究[J].消防科学与技术,2014,33(2):128.

[1]	HAO Gang, YU Dinghao, XU Ying, WANG Li, LIU Hong. Numerical simulation and field test of height of caving zone and fracture zone in Heshan Coal Mine[J]. Safety in Coal Mines, 2023, 54(9): 174-179. DOI: 10.13347/j.cnki.mkaq.2023.09.023
[2]	WAN Feng, ZHANG Hongqing, ZHOU Peijun, GUO Jie. Numerical simulation study on effect of bedrock intrusion on strata behaviors of roadway[J]. Safety in Coal Mines, 2021, 52(10): 211-216.
[3]	WANG Xiaojian, LI Zhaosheng, ZHANG Liangliang, SUN Shiyuan, SHEN Renwei, FANG Gensheng. Numerical analysis of time-sharing differential freezing temperature field in coal mine[J]. Safety in Coal Mines, 2021, 52(7): 200-206.
[4]	LI Li. Application of Numerical Simulation in Analyzing Water Flowing Fractured Zone in Coal[J]. Safety in Coal Mines, 2017, 48(10): 160-162,166.
[5]	CUI Kai, ZHANG Zhao-qian, ZHANG Bai-sheng, XIE Fu-xing. Study on Strata Behavior Laws at Hard Roof Working Face in Jincheng Mining Area[J]. Safety in Coal Mines, 2013, 44(12): 166-168,171.
[6]	ZHANG Lian-ying, MA Chao, LI Yan. Numerical Simulation of Bolting Support Mechanism[J]. Safety in Coal Mines, 2013, 44(9): 71-73.
[7]	MA Mang-li. Strata Behavior Simulation and Field Measurement for Fully Mechanized Mining Face in Thick Seam[J]. Safety in Coal Mines, 2013, 44(8): 226-228.
[8]	WANG Yi-dong, JIANG Zhen-quan, ZHU Shu-yun, ZHANG Rui. Contrast of Numerical Simulation and Field Measurement on Deformation and Failure in Thick Seam Mining Floor[J]. Safety in Coal Mines, 2012, 43(10): 35-37.
[9]	CHANG Gang, JIANG Zhen-quan, JIA Xue-mei, ZHANG Rui, SUN Qiang. Study on Roof Strata Behavior Laws of A Certain Coal Mine During Mining[J]. Safety in Coal Mines, 2012, 43(7): 38-41.
[10]	YANG Ming, MENG Xiang-rui, GAO Zhao-ning, CHENG Xiang. Numerical Simulation of Ground Strata behavior Laws of Overlying Strata Movement at Stope[J]. Safety in Coal Mines, 2012, 43(6): 17-20,21.

Cited By

Get Citation

XML

Article views (132) PDF downloads (0)

Turn off MathJax

Article Contents

Abstract

References

Experimental Study on Suppression of Coal Dust Combustion by Inert Medium

Abstract

References

Related Articles

Catalog

Experimental Study on Suppression of Coal Dust Combustion by Inert Medium

Abstract

References

Related Articles

Catalog

Export File

Citation

Format

Content