Cooling law of liquid carbon dioxide on coal with different particle sizes

LI Peng

Safety in Coal Mines > 2021 > 52(2): 28-32.

LI Peng. Cooling law of liquid carbon dioxide on coal with different particle sizes[J]. Safety in Coal Mines, 2021, 52(2): 28-32.

Citation:

LI Peng. Cooling law of liquid carbon dioxide on coal with different particle sizes[J]. Safety in Coal Mines, 2021, 52(2): 28-32.

Citation:

LI Peng. Cooling law of liquid carbon dioxide on coal with different particle sizes[J]. Safety in Coal Mines, 2021, 52(2): 28-32.

Cooling law of liquid carbon dioxide on coal with different particle sizes

LI Peng

More Information

Published Date: February 19, 2021

Graphical Abstract

Abstract

Abstract

In order to study the cooling law of liquid carbon dioxide on coal samples, the characteristic temperature of coal samples was obtained by temperature-programmed experiment. Liquid carbon dioxide cooling experiments were carried out for coal samples with different particle sizes to analyze the influence of coal sample particle size on liquid carbon dioxide cooling. The experimental time was divided into three stages with the characteristic temperature of coal as the node, and the relationships between the temperature drop of liquid carbon dioxide and the characteristic temperature of coal sample was constructed. The experimental results show that the cooling effect of liquid carbon dioxide is better with the larger particle size of coal sample.
- liquid carbon dioxide,
- cooling law,
- characteristic temperature,
- particle size,
- coal spontaneous combustion

FullText(HTML)

References (19)

References

[1]	王德明.煤矿热动力灾害及特性[J].煤炭学报, 2018, 43(1):137-142. WANG Deming. Thermodynamic disaster in coal mine and its characteristics[J]. Journal of China Coal Society, 2018, 43(1): 137-142.
[2]	Song Z, Kuenzer C. Coal fires in China over the last decade: A comprehensive review[J]. International Journal of Coal Geology, 2014, 133: 72-99.
[3]	梁运涛,侯贤军,罗海珠.我国煤矿火灾防治现状及发展对策[J].煤炭科学技术,2016,44(6):120-126. LIANG Yuntao, HOU Xianjun, LUO Haizhu. Development countermeasures and current situation of coal mine fire prevention & extinguishing in China[J]. Coal Science and Technology, 2016, 44(6): 120-126.
[4]	刘赛,刘福义,王刚,等.矿井采空区CO2防灭火技术发展展望[J].煤炭技术,2014,33(6):7-9. LIU Sai, LIU Fuyi, WANG Gang, et al. Development outlook of mine fire control technology by using CO2 in coal mine goaf[J]. Coal Technology, 2014, 33(6): 7-9.
[5]	张春华,王继仁,张子明,等.液态二氧化碳防灭火装备及其工程应用[J].科技导报,2013,31(18):44-48. ZHANG Chunhua, WANG Jiren, ZHANG Ziming, et al. Liquid carbon dioxide fire extinguishing equipment and its engineering application[J]. Science & Technology Review, 2013, 31(18): 44-48.
[6]	R Morris. A review of experiences on the use of inert gases in mine fires[J]. Mining Science and Technology, 1987, 6: 37-69.
[7]	郭志国.惰性气体抑制煤自燃氧化升温机理的实验研究[D].北京:中国矿业大学(北京),2017.
[8]	李喜员,沈广辉,徐成林,等.二氧化碳抑制采空区进风侧浮煤剧烈氧化技术[J].煤矿安全,2018,49(10):72-75. LI Xiyuan, SHEN Guanghui, XU Chenglin, et al. Inhibition of violent oxidation of floating coal by carbon dioxide in intake side of goaf[J]. Safety in Coal Mines, 2018, 49(10): 72-75.
[9]	张延松,杜文州,王依磊,等.二氧化碳-氮气协同防控采空区燃爆技术[J].煤矿安全,2018,49(7):52-54. ZHANG Yansong, DU Wenzhou, WANG Yilei, et al. CO2-nitrogen collaborative prevention and control technology of combustion and explosion in goaf[J]. Safety in Coal Mines, 2018, 49(7): 52-54.
[10]	王淼,许健.液态二氧化碳直注灭火技术在珙泉煤矿的应用[J].煤矿安全,2017,48(8):125-127. WANG Miao, XU Jian. Application of liquid CO2 fire-extinguishing technique in Gongquan Coal Mine[J]. Safety in Coal Mines, 2017, 48(8): 125-127.
[11]	张文军,李伟明,代小云,等.液态CO2处理对微粉煤性质的影响研究[J].煤炭工程,2018,50(5):127. ZHANG Wenjun, LI Weiming, DAI Xiaoyun, et al. Research on ultra-fine coal properties before and after treatment with liquid CO2[J]. Coal Engineering, 2018, 50(5): 127.
[12]	翟小伟,王庭焱.液态CO2对高温煤体降温规律实验研究[J].煤矿安全,2018,49(4):30-33. ZHAI Xiaowei, WANG Tingyan. Experimental study on the law of liquid CO2 cooling the high temperature coal[J]. Safety in Coal Mines, 2018, 49(4): 30-33.
[13]	陆卫东,贾宝山,李守国,等.CO2气体对瓦斯爆炸的阻尼效应研究[J].煤矿安全,2016,47(9):1-3. LU Weidong, JIA Baoshan, LI Shouguo, et al. Study on damping effect of CO2 on gas explosion[J]. Safety in Coal Mines, 2016, 47(9): 1-3.
[14]	邵昊,蒋曙光,吴征艳,等.采空区注二氧化碳防灭火的数值模拟研究[J].采矿与安全工程学报,2013,30(1):154-158. SHAO Hao, JIANG Shuguang, WU Zhengyan, et al.Numerical simulation on fire prevention by infusing carbon dioxide into goaf[J]. Journal of Mining and Safety Engineering, 2013, 30(1): 154-158.
[15]	牛振磊,程根银,司俊鸿,等.综放采空区注二氧化碳工艺优化数值模拟研究[J].华北科技学院学报,2018, 15(1):36-40. NIU Zhenzhen, CHENG Genyin, SI Junhong, et al. Numerical simulation study on the process optimization of carbon dioxide injection in fully mechanized goaf[J]. Journal of North China Institute of Science and Technology, 2018, 15(1): 36-40.
[16]	冯艳艳,黄宏斌,杨文.粒径分布对煤的孔隙结构及其CH4和CO2吸附性能的影响[J].煤炭技术,2018, 37(3):163-165. FENG Yanyan, HUANG Hongbin, YANG Wen. Effects of particle size on coal pore structure and CH4 and CO2 adsorption characteristics[J]. Coal Technology, 2018, 37(3): 163-165.
[17]	徐精彩.煤自燃危险区判定理论[M].北京:煤炭工业出版社,2001:80-82.
[18]	肖旸,王振平,马砺.煤自燃指标气体与特征温度的对应关系研究[J].煤炭科学技术,2008,36(6):47. XIAO Yang, WANG Zhenping, MA Li. Research on correspondence relationship between coal spontaneous combustion index gas and feature temperature[J]. Coal Science and Technology, 2008, 36(6): 47.
[19]	王振平,文虎,黄福昌.松散煤体中的氧气扩散模型及数值分析[J].煤炭学报,2002,27(3):229. WANG Zhenping, WEN Hu, HUANG Fuchang. Oxygen diffusion model and numerical analysis in loose coal [J]. Journal of China Coal Society, 2002, 27(3): 229

Cited By

Cited by

Periodical cited type(3)

1.	于志金，晋策，李鹏兵，黄德威. CO_2-N_2复合惰气对氧化煤冷却惰化特性研究. 煤炭技术. 2024(05): 148-154 .
2.	邓捷，陈宝辉，陆佳政，陈杰，朱鸿章，方针. 低压二氧化碳与常规灭火剂抑制锂离子电池火灾特性对比. 高电压技术. 2023(01): 364-372 .
3.	王利新，姚志强，王晓欢，刘振国，刘伟. 特厚高放顶煤开采注氮煤自燃危险抑制特性研究. 煤矿安全. 2023(10): 72-81 . 本站查看

Other cited types(1)

Get Citation

XML

Article views (45) PDF downloads (0) Cited by(4)

Turn off MathJax

Article Contents

Abstract

References

Cooling law of liquid carbon dioxide on coal with different particle sizes

Abstract

References

Cited by

Periodical cited type(3)

Other cited types(1)

Catalog

Export File

Citation

Format

Content