|本期目录/Table of Contents|

[1]金洪伟,高巧红,徐刚,等.不同瓦斯压力条件下煤样的爆碎特征研究[J].中国安全生产科学技术,2018,14(11):95-100.[doi:10.11731/j.issn.1673-193x.2018.11.015]
 JIN Hongwei,GAO Qiaohong,XU Gang,et al.Study on exploding and shattering characteristics of coal samples under different gas pressures[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(11):95-100.[doi:10.11731/j.issn.1673-193x.2018.11.015]
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不同瓦斯压力条件下煤样的爆碎特征研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年11期
页码:
95-100
栏目:
职业安全卫生管理与技术
出版日期:
2018-11-30

文章信息/Info

Title:
Study on exploding and shattering characteristics of coal samples under different gas pressures
文章编号:
1673-193X(2018)-11-0095-06
作者:
金洪伟高巧红徐刚杨守国于世雷
(西安科技大学 安全科学与工程学院,陕西 西安 710054)
Author(s):
JIN Hongwei GAO Qiaohong XU Gang YANG Shouguo YU Shilei
(College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an Shaanxi 710054, China)
关键词:
煤与瓦斯突出爆碎瓦斯压力粒径Weibull分布
Keywords:
coal and gas outburst exploding and shattering gas pressure particle size Weibull distribution
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2018.11.015
文献标志码:
A
摘要:
为验证煤与瓦斯突出过程中产生大量碎煤与含高压瓦斯煤在突然卸载时所发生的“爆碎”现象有关,分析碎煤的粒径分布规律,自主设计煤的爆碎特征测试实验装置,通过在不同煤矿取原煤样在不同瓦斯压力下进行爆碎特征实验,研究煤爆碎的基本规律。研究结果表明:在瓦斯压力作用下且瓦斯压力足够高时,所有含高压瓦斯煤在气压突然卸载后都能发生爆碎;不同煤样发生爆碎的瓦斯压力临界值不同,坚固性系数越大,煤样发生爆碎的最小瓦斯压力值越大,其爆碎后的碎煤粒径服从威布尔分布;同一煤样,瓦斯压力越大,碎煤在累积筛下率为63.2%时的特征粒径值越小,粉煤所占比重越大,爆碎越严重。
Abstract:
In order to verify that the generation of large amount of shattered coal in the process of coal and gas outburst is related to the “exploding and shattering” phenomenon of coal containing high pressure gas under the sudden unloading, and analyze the distribution laws of particle size for the shattered coal, an experimental device for testing the exploding and shattering characteristics of coal was selfdeveloped, and the basic laws of coal exploding and shattering were studied by conducting the experiments of exploding and shattering characteristics on the raw coal samples collected from different coal mines under different gas pressures. The results showed that under the effect of gas pressure and when the gas pressure was high enough, the exploding and shattering would occur for all the coals containing high pressure gas after the gas pressure was suddenly unloaded. The critical values of gas pressure when the exploding and shattering occurred for different coal samples were different, the greater the consistent coefficient, the greater the minimum gas pressure when the exploding and shattering occurred, and the particle size of the shattered coal after the exploding and shattering was subject to the Weibull distribution. For the same coal sample, the larger the gas pressure, the smaller the characteristic particle size of the shattered coal when the cumulative weight percentage undersize was 63.2%, the larger the proportion of pulverized coal, and the more severe the exploding and shattering.

参考文献/References:

[1]于不凡. 煤和瓦斯突出机制[M]. 北京: 煤炭工业出版,1985.
[2]蒋承林,俞启香. 煤与瓦斯突出的球壳失稳机理及防治技术[M]. 徐州: 中国矿业大学出版社, 1998.
[3]郭德勇, 韩德馨. 煤与瓦斯突出粘滑机理研究[J]. 煤炭学报,2003,28(6): 598-602. GUO Deyong,HAN Dexin.The stick-slip mechanism of coal and gas outburst[J]. Journal of China Coal Society,2003,28(6): 598-602.
[4]胡千庭. 煤与瓦斯突出的力学作用机理[M]. 北京: 科学出版社, 2013.
[5]SKOCHINSKI A A.Modern concepts on the nature of sudden outbursts of gas and coal and control techniques[J]. Ugol,1954(7): 4-10.
[6]HALBAUM H W.Discussion of J.Gerrard’s paper, “Instantaneous Outbursts of Fire-damp and Coal, Broad Oak Colliery”[J]. Institute of Mining Engineering, 1899, XVIIII: 258-265.
[7]ROWAM H. An outburst of coal and fire-damp at valleyfield colliery[J]. Institute of Mining Engineering, 1911, XLII: 50-52.
[8]金洪伟. 煤与瓦斯突出发展过程的实验与机理分析[J]. 煤炭学报, 2012, 37(S1): 98-103. JIN Hongwei. Experiment and mechanism analysis of the developing process of coal and gas outburst[J]. Journal of China Coal Society, 2012, 37(S1): 98-103.
[9]胡维嘉. 突出瓦斯—粉煤流冲击动力效应的理论和实验研究[D]. 北京: 中国矿业大学(北京), 2013.
[10]金侃. 煤与瓦斯突出过程中高压粉煤—瓦斯两相流形成机制及致灾特征研究[D]. 徐州: 中国矿业大学, 2017.
[11]WEIBULL W. A statistical distribution function of wide applicability[J]. Journal of Applied Mechanics, 1951, 18(3): 293-297.
[12]刘送永, 杜长龙, 李建平. 煤截割粒度分布规律的分形特征[J]. 煤炭学报, 2009, 34(7): 977-982. LIU Songyong,DU Changlong,LI Jianping. Fractal character of the distribution law of the cutting coal sizet[J]. Journal of China Coal Society,2009,34(7): 977-982.
[13]巫尚蔚, 杨春和, 张超, 等. 基于Weibull模型的细粒尾矿粒径分布[J]. 重庆大学学报, 2016, 39(3): 1-12. WU Shangwei, YANG Chunhe, ZHANG Chao, et al. Particle size distribution of fine-grained tailings based on Weibull distribution[J]. Journal of Chongqing University, 2016, 39(3): 1-12.
[14]ROSIN P, RAMMLER E. The law governing the fineness of powdered coal[J]. Journal of the Institute of Fuel, 1993, 7: 29-36.
[15]汪斌, 胡善学. 镜铁山矿粉尘分布规律研究[J]. 中国矿业, 1994, 3(3): 71-76. WANG Bin, HU Shanxue. Study on the distribution of dust in Jingtieshan mine[J]. China Mining Magazine, 1994, 3(3): 71-76.
[16]刘建, 姚海飞, 金龙哲, 等. 基于罗森-拉姆勒分布函数的粉尘分散度分析[J]. 北京科技大学学报, 2010, 32(9): 1101-1106. LIU Jian, YAO Haifei, JIN Longzhe, et al. Dust dispersion analysis based on the Rosen-Rammler distribution function[J]. Journal of University of Science and Technology Beijing, 2010, 32(9): 1101-1106.
[17]郑钢镖, 康天合, 尹志宏, 等. 不同冲击形式下煤样产尘粒径分布规律研究[J]. 采矿与安全工程学报, 2007, 24(1): 96-100. ZHENG Gangbiao, KANG Tianhe, YIN Zhihong, et al. Research on dust size distribution of coal impacted with different forms[J]. Journal of Mining & Safety Engineering, 2007, 24(1): 96-100.
[18]王亮, 杨云川, 唐宏新, 等. Rosin-Rammler分布的实验拟合曲线优化[J]. 沈阳理工大学学报, 2015, 34(5): 58-61, 75. WANG Liang, YANG Yunchuan, TANG Hongxin, et al. The optimization of experimental fitting curves based on Rosin-Rammler distribution[J]. Journal of Shenyang Ligong University, 2015, 34(5): 58-61, 75.

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备注/Memo

备注/Memo:
收稿日期: 2018-09-14
基金项目: 国家自然科学基金项目(51404190);国家重点研发计划课题(2018YFC0808303,2018YFC0807805);中国博士后科学基金项目(2015M572655XB)
作者简介: 金洪伟,博士,副研究员,主要研究方向为煤与瓦斯突出机理与防治、矿山压力与岩层控制。
通信作者: 高巧红,硕士研究生,主要研究方向为煤与瓦斯突出机理及其预防控制。
更新日期/Last Update: 2018-12-03