Study on applicability of different desorption formulas to briquette containing methane

doi:10.16265/j.cnki.issn1003-3033.2017.12.016

Abstract

Abstract: In order to accurately calculate the loss of coal core methane in the process of core extraction, reduce the frequency of coal and gas outburst and the number of casualties, relationship curves between cumulative methane desorption quantity of the former 60 minutes and time were drew based on the data obtained from experiments carried out by using a high and low temperature test device. The authors tried to fit the curves with different desorption formulas.The results show that the type of Ustinov could not be completely 0 ℃ above the desorption data and could fit the data on desorption below 0 ℃, that the fitting effect of K.Winter type is better than that of WANG Youan type or that of SUN Chongxu type, and that fitting effects of R.M. Barrell type, exponential type and B.A. Bolt type are poor, and that WANG Youan type, K.Winter type and SUN Chongxu type are applicable to briquette coal samples containing methane regardless of the temperature they are at.

Key words: desorption quantity, high and low temperature, desorption formula, briquette coal, applicability

CLC Number:

X936

YUE Jiwei, WANG Zhaofeng. Study on applicability of different desorption formulas to briquette containing methane[J]. China Safety Science Journal, 2017, 27(12): 91-96.

References

[1] 陈雄,胡杰. 不同取样方式对煤层瓦斯含量测定的研究分析[J]. 工业安全与环保,2017,43(2): 15-17.
CHEN Xiong, HU Jie. The research on determination of coal seam gas content based on different sampling modes[J]. Industrial Safety and Environmental Protection, 2017, 43(2): 15-17.
[2] 张振飞.煤层瓦斯含量测定方法对比研究[D].淮南:安徽理工大学,2013.
ZHANG Zhenfei. Comparative study on the coal seam gas content assay methods[D]. Huainan:Anhui University of Science and Technology, 2013.
[3] GB/T 23250—2009,煤层瓦斯含量井下直接测定方法[S].
GB/T 23250-2009, The direct method of determining coal bed gas content in the mine[S].
[4] 胡千庭,邹银辉,文光才,等.瓦斯含量法预测突出危险新技术[J].煤炭学报,2007,32(3): 276-280.
HU Qianting, ZHOU Yinhui, WEN Guangcai, et al. New technology of outburst danger prediction by gas content [J].Journal of China Coal Society, 2007, 32(3): 276-280.
[5] 姜永东,阳兴洋,刘元雪,等.不同温度条件下煤中甲烷解吸特性的实验研究[J].矿业安全与环保,2012,39(2): 6-8.
JIANG Yongdong, YANG Xingyang, LIU Yuanxue, et al. Experimental study on methane desorption characteristics of coal under condition of different temperatures[J]. Mining Safety and Environmental Protection, 2012, 39(2): 6-8.
[6] 刘彦伟,魏建平,何志刚,等. 温度对煤粒瓦斯扩散动态过程的影响规律与机理[J]. 煤炭学报,2013,38(增1): 100-105.
LIU Yanwei, WEI Jianping, HE Zhigang, et al. Influence rules and mechanisms of temperature on dynamic process of gas diffusion from coal particles[J]. Journal of China Coal Society, 2013, 38(S1): 100-105.
[7] 李志强,段振伟,景国勋. 不同温度下煤粒瓦斯扩散特性试验研究与数值模拟[J]. 中国安全科学学报,2012,22(4): 38-42.
LI Zhiqiang, DUAN Zhenwei, JING Guoxun. Experimental study on gas diffusion characteristics from coal at different temperatures and their numerical simulation[J]. China Safety Science Journal, 2012, 22(4): 38-42.
[8] 聂百胜,杨涛,李祥春,等. 煤粒瓦斯解吸扩散规律实验[J]. 中国矿业大学学报,2013,42(6): 975-980.
NIE Baisheng, YANG Tao, LI Xiangchun, et al. Research on diffusion of methane in coal particles[J]. Journal of China University of Mining & Technology, 2013, 42(6): 975-980.
[9] 王兆丰,康博,岳高伟,等.低温环境无烟煤瓦斯解吸特性研究[J].河南理工大学:自然科学版,2014,33(6):705-709.
WANG Zhaofeng, KANG Bo, YUE Gaowei, et al. Study on gas desorption characteristics of anthracite in low temperature environment [J].Journal of Henan Polytechnic University:Natural Science, 2014, 33(6): 705-709.
[10] 王兆丰,岳高伟,康博,等.低温环境对煤的瓦斯解吸抑制效应试验[J].重庆大学学报,2014,37(9):106-143.
WANG Zhaofeng, YUE Gaowei, KANG Bo, et al. Gas desorption inhibitory effect of coal in low temperature environment[J]. Journal of Chongqing University, 2014, 37(9): 106-143.
[11] 岳高伟,王兆丰,康博.低温环境煤的瓦斯扩散系数时变特性[J]. 中国安全科学学报,2014,24(2): 107-112.
YUE Gaowei, WANG Zhaofeng, KANG Bo. Time-varying characteristics of gas diffusion coefficient in low temperature environment [J]. China Safety Science Journal, 2014, 24(2): 107-112.
[12] 岳高伟,王兆丰,谢策.低温环境下煤表面吸附的均匀性试验[J]. 科技导报,2014,32(31): 71-74.
YUE Gaowei, WANG Zhaofeng, XIE Ce. Experimental study of coal surface adsorption uniformity in low temperature environment[J].Science and Technology Review, 2014, 32(31): 71-74.
[13] 祁晨君,王兆丰,谢策,等.低温环境下经验公式对颗粒煤瓦斯解吸描述的研究[J].煤矿安全,2016,47(10): 29-32.
QI Chenjun, WANG Zhaofeng, XIE Ce, et al. Study on description of empirical formula on gas desorption of coal particles in low temperature environment [J]. Safety in Coal Mines, 2016, 47(10): 29-32.
[14] 李宏.环境温度对颗粒煤瓦斯解吸规律的影响实验研究[D].焦作:河南理工大学,2011.
LI Hong. Experiment research on the influence of ambient temperature on gas desorption laws of particle coal[D].Jiaozuo: Henan Polytechnic University, 2011.
[15] 王兆丰.空气、水和泥浆介质中煤的瓦斯解吸规律与应用研究[D].徐州: 中国矿业大学,2001.
WANG Zhaofeng. Study on gas desorption law of coal in air, water and slurry media and its application[D]. Xuzhou: China University of Mining and Technology, 2001.
[16] 俞启香,程远平. 矿井瓦斯灾害防治[M]. 徐州:中国矿业大学出版社,2012: 35-37.
YU Qixiang, CHENG Yuanping. Coal mine gas control[M].Xuzhou: China University of Mining and Technology Press, 2012: 35-37.