应用渗透棒提高煤层注水效果分析及试验研究

doi:10.16265/j.cnki.issn1003-3033.2020.05.009

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (5): 54-59.doi: 10.16265/j.cnki.issn1003-3033.2020.05.009

应用渗透棒提高煤层注水效果分析及试验研究

郭敬中^1,2 讲师, 金龙哲^**2 教授, 杨朝霞³, 赵启峰¹ 副教授, 蒋大峰⁴

1.华北科技学院安全工程学院,河北廊坊 065201;
2.北京科技大学土木与资源工程学院,北京 100083;
3.阳泉煤业(集团)股份有限公司二矿,山西阳泉 045000;
4.淮北矿业股份有限公司芦岭煤矿, 安徽淮北 235000

收稿日期:2020-02-14 修回日期:2020-04-17 出版日期:2020-05-28 发布日期:2021-01-28
通讯作者: **金龙哲(1963—),男,河南汪清人,博士,教授,博士生导师,从事安全工程和环境工程研究。E-mail:lzjin@ustb.edu.cn。
作者简介:郭敬中(1983—),男,河南濮阳人,博士,讲师,主要从事于矿山安全生产基础理论、粉尘监测与防治技术等研究。E-mail:jzhguo2010@163.com。
基金资助:
国家自然科学基金资助(51874015);国家重点研发计划(2017YFC0805204);中央高校基本科研业务费(3142015028,HKJYZD201604)。

Analysis and experimental study on improving water injection effect of coal seam with permeable rod

GUO Jingzhong^1,2, JIN Longzhe², YANG Zhaoxia³, ZHAO Qifeng¹, JIANG Dafeng⁴

1. Safety Engineering College, North China Institute of Science and Technology, Langfang Hebei 065201, China;
2. School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China;
3. No.2. Mine, Yangquan Coal Industry (Group) Co., Ltd., Yangquan Shanxi 045000, China;
4. Luling Coal Mine, Huaibei Mining Industry Group Company, Huaibei Anhui 235000,China

Received:2020-02-14 Revised:2020-04-17 Online:2020-05-28 Published:2021-01-28

摘要/Abstract

摘要： 为改善煤层注水效果,降低粉尘对矿工及设备的危害,开展渗透棒注水煤体润湿效果分析及试验研究。通过建立煤层注水力学模型,运用驱替理论推导注水过程水气动界面的运动特征及润湿半径与注水时间、注水压力和渗透率的关系式;设计普通注水与渗透棒注水对比试验,分析渗透棒注水对煤体润湿效果的影响。试验结果表明:与普通注水润湿半径为6～8 m相比,渗透棒注水润湿半径为20 m以上,是普通注水润湿半径的2～3倍;渗透棒注水能够大幅增大煤体润湿范围、减少工作面钻孔数量、降低注水成本。

关键词: 渗透棒, 润湿半径, 动界面, 煤层注水, 注水压力

Abstract: In order to improve water infusion effect and reduce harm of dust to miners and equipment, wetting effect of water infusion by permeating rod was analyzed and tested. A mechanical model of water infusion was established, and motion law of dynamic water-gas contact and formula of wetting radius with time, pressure, and permeate coefficient were deduced by using displacement theory. Then, through comparative test between ordinary water infusion and water infusion by permeating rod, wetting effect of the latter was analyzed. The results show that compared to the wetting radius of ordinary water infusion which is 6-8 m, that of water infusion by permeating rod is more than 20 m, 2 to 3 times of the former. It can greatly increase wetting range of coal, reduce number of boreholes in working face as well as cost of water infusion.

Key words: permeating rod, wetting radius, dynamic surface, coal seam water infusion, pressure of water infusion

中图分类号:

X936

郭敬中, 金龙哲, 杨朝霞, 赵启峰, 蒋大峰. 应用渗透棒提高煤层注水效果分析及试验研究[J]. 中国安全科学学报, 2020, 30(5): 54-59.

GUO Jingzhong, JIN Longzhe, YANG Zhaoxia, ZHAO Qifeng, JIANG Dafeng. Analysis and experimental study on improving water injection effect of coal seam with permeable rod[J]. China Safety Science Journal, 2020, 30(5): 54-59.

参考文献

[1] 傅贵,袁海洋,解兴智,等.煤体对纯水吸收速度的影响因素分析[J].煤炭学报,1999,24(5): 489-493.
FU Gui, YUAN Haiyang, XIE Xingzhi, et al. Experimental analysis of affecting factors of coal on moisture absorbing rate [J]. Journal of China Coal Society, 1999, 24(5): 489-493.
[2] 杨赫,程卫民,刘震,等.注水煤体有效渗流通道结构分形特征核磁共振试验研究[J].岩土力学,2020,41(4): 1-7.
YANG He, CHENG Weimin, LIU Zhen, et al. Fractal characteristics of effective seepage channel structure of water infusion coal based on NMR experiment [J].Rock and Soil Mechanics,2020,41(4): 1-7.
[3] 于岩斌,蒋宇静,程卫民,等.煤层高压注水渗透特性试验研究[J].采矿与安全工程学报,2015, 32(1): 144-149.
YU Yanbin,JIANG Yujing,CHENG Weimin, et al. Experimental study on permeability properties of coal seam under high pressure water injection [J].Journal of Mining & Safety Engineering,2015, 32(1): 144-149.
[4] 秦文贵, 张延松.煤孔隙分布与煤层注水增量的关系[J].煤炭学报, 2000,25(5): 514-517.
QIN Wengui, ZHANG Yansong.Relation of pore distribution of coal with water infusion increment in seams[J].Journal of China Coal Society, 2000, 25(5): 514 -517.
[5] 徐厚学.低渗透煤层顺层孔割缝增透注水抑尘技术研究[J].煤炭科学技术, 2016, 44(9): 110-114.
XU Houxue. Study on bedding drilling slotting permeability improvement, water injection and dust control technology of low permeability seam[J].Coal Science and Technology, 2016, 44(9): 110-114.
[6] 郭明涛,唐跃刚,苏雪峰,等.高压注水对煤孔隙结构影响的试验研究[J].煤炭科学技术,2017,45(3): 133-140.
GUO Mingtao,TANG Yuegang,SU Xuefeng,et al. Experimental study on influence of high pressure water injection on coal pore structure[J].Coal Science and Technology,2017,45(3): 133-140.
[7] 李宗翔,孙广义,王继波.煤层长钻孔注水过程的数值模拟与参数的合理确定[J].煤炭学报,2001,26(4): 389-393.
LI Zongxiang, SUN Guangyi, WANG Jibo. Numerical simulation of water injection into coal seam through long drill hole and determination of its reasonable parameters[J].Journal of China Coal Society,2001,26(4): 389-393.
[8] 谢建林,庞杰文,菅洁,等.综采工作面煤层注水降尘试验研究[J].中国安全科学学报,2017,27(6): 151-156.
XIE Jianlin, PANG Jiewen, JIAN Jie, et al. Experimental study on reducing dust at fully mechanized coal mining face by coal seam water injection[J].China Safety Science Journal, 2017,27(6): 151-156.
[9] 金龙哲,傅清国,任宝宏,等.煤层注水中添加粘尘棒降尘试验[J]. 北京科技大学学报,2001,23(1): 1-5.
JIN Longzhe, FU Qingguo, REN Baohong, et al. Test of dust fall by adding the dust adhering bar when coal seam water infused[J]. Journal of University of Science and Technology Beijing,2001,23(1): 1-5.
[10] 金龙哲,欧盛南.煤层注水中粘尘棒溶液对接触角的影响[J].北京科技大学学报, 2005, 27(3): 264-267.
JIN Longzhe, OU Shengnan. Effect of dust sticking bar's solution on the contact angle of coal seam in infusion [J].Journal of University of Science and Technology Beijing, 2005, 27(3): 264-267.
[11] 王青松, 金龙哲,孙金华.煤层注水过程分析和煤体润湿机理研究[J].安全与环境学报,2004,4(1): 70-73.
WANG Qingsong, JIN Longzhe, SUN Jinhua. Research on coal seam water infusion course and coalbody wetness mechanism [J].Journal of Safety and Environment, 2004, 4(1): 70-73.
[12] 彭亚, 蒋仲安,付恩琦,等. 综采工作面煤层注水防尘优化及效果研究[J].煤炭科学技术,2018, 46(1): 223-230.
PENG Ya, JIANG Zhongan, FU Enqi,et al. Study on seam water injection and dust control optimization and effect of fullymechanized coal mining face[J]. Coal Science and Technology, 2018, 46(1): 223-230.
[13] 王龙飞, 蒋仲安, 陈举师,等.低压注水对煤体孔隙特征及渗透率的影响[J].中国安全生产科学技术,2018, 14(6): 108-113.
WANG Longfei, JIANG Zhongan, CHEN Jushi, et al. Influence of low pressure water injection on pore characteristics and permeability of coal[J].Journal of Safety Science and Technology, 2018, 14(6): 108-113.
[14] 宋维源,李大广,章梦涛,等.煤层注水的水气驱替理论研究[J].中国地质灾害与防治学报,2006,17 (2): 147-150.
SONG Weiyuan, LI Daguang, ZHANG Mengtao, et al. The Study on the theory of water and gas replacing during water injection into coal seams [J]. The Chinese Journal of Geological Hazard and Control, 2006,17 (2): 147-150.
[15] 梁宝霞,潘一山.高瓦斯薄煤层注水平面平行流模型分析[J].采矿与安全工程学报,2006,23(2): 206-209.
LIANG Baoxia, PAN Yishan. Analysis of plane parallel flow model for water injection in thin coal seams with high gas content[J]. Journal of Mining & Safety Engineering,2006,23(2): 206-209.
[16] GB/T212—2008,煤的工业性分析方法[S].
GB/T212-2008,Proximate analysis of coal[S].

应用渗透棒提高煤层注水效果分析及试验研究

Analysis and experimental study on improving water injection effect of coal seam with permeable rod

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 6

编辑推荐

Metrics

本文评价

[1]	翁安琦, 袁树杰, 王晓楠, 马瑞峰. 煤层注水降尘中表面活性剂复配应用研究[J]. 中国安全科学学报, 2020, 30(10): 90-95.
[2]	谢建林, 庞杰文, 菅洁, 李川田. 综采工作面煤层注水降尘试验研究[J]. 中国安全科学学报, 2017, 27(6): 151-156.
[3]	王春光. 低含量超强开采工作面瓦斯异常涌出防治技术[J]. 中国安全科学学报, 2017, 27(1): 71-76.
[4]	肖知国，王兆丰. 煤层注水防治煤与瓦斯突出机理的研究现状与进展[J]. 中国安全科学学报, 2009, 19(10): 150-.
[5]	章梦涛，宋维源，潘一山. 煤层注水预防冲击地压的研究[J]. 中国安全科学学报, 2003, 13(10): 69-.
[6]	金龙哲，蒋仲安，任宝宏，吴奎斌. 煤层注水中水分蒸发现象的研究[J]. 中国安全科学学报, 2000, 10(3): 58-.