新型复合封孔材料的研制及应用
Development and Application of a New Composite Sealing Material
-
摘要: 利用煤岩钻屑为原料,配以黏结剂、促凝剂、膨胀剂制备1种复合封孔材料,并采用4因素3水平正交实验的方法共设计了9组不同配比的实验组合,以流动度、抗压强度和膨胀率为指标对材料不同组分之间的相互影响机制进行研究,最终得到了复合封孔材料的最优配比,并利用电镜扫描的方法分析复合材料与煤壁结合情况。在夏店煤矿开展现场试验,结果表明:相对于矿方原有水泥砂浆封孔材料方式,采用复合封孔材料进行封孔能够显著提高钻孔瓦斯抽采效果,钻孔平均瓦斯浓度由原来的22.2%提高至36.5%,达到了瓦斯利用的标准。Abstract: A new composite sealing material was prepared by taking coal-rock cuttings as base material, and supplemented by some other additives, such as binder, accelerating and expansive agent. The orthogonal design of four factors and three levels were used to design nine groups of different proportioning experiments, and the interaction mechanism among different components was studied with fluidity, compressive strength and expansion rate as indicators. Finally, the optimum ratio of composite sealing material, was obtained. And the combination effect of composite material and coal wall was also analyzed by SEM method. Then the field test was carried out at Xiadian Coal Mine, the results showed that the composite sealing material can significantly improve the gas drainage effect compared with the traditional cement mortar sealing method, the average gas concentration of drainage borehole increased from 22.2% to 36.5%, which reached the standard of gas utilization.
-
Keywords:
- coal-rock cuttings /
- sealing material /
- orthogonal test /
- optimum ratio /
- gas drainage
-
-
[1] 陈静涛,郭惟嘉,尹立明.深部开采底板裂隙扩展演化规律试验研究[J].岩石力学与工程学报,2016,35(11):2298-2306. [2] 魏建平,王登科,位乐.两种典型受载含瓦斯煤样渗透特性的对比[J].煤炭学报,2013,38(S1):93-99. [3] 王兆丰,刘军.我国煤矿瓦斯抽放存在的问题及对策探讨[J].煤矿安全,2005,36(3):29-32. [4] 王兆丰,武炜.煤矿瓦斯抽采钻孔主要封孔方式剖析[J].煤炭科学技术,2014,42(6):31-35. [5] 陈志城,阎培渝.补偿收缩混凝土的自收缩特性[J].硅酸盐学报,2010,38(4):568-573. [6] 杨会军,张超,李志梁,等.新型瓦斯抽采钻孔密封材料性能实验研究[J].煤矿安全,2016,47(8):19-20. [7] 李敏.煤矿聚氨酯封孔的实验研究[D].北京:中国地质大学(北京),2011. [8] 翟成,向贤伟,余旭,等.瓦斯抽采钻孔膏体密封材料封孔性能研究[J].中国矿业大学学报,2013,42(6):982-988. [9] 魏建平,秦恒洁,王登科,等.含瓦斯煤渗透率动态演化模型[J].煤炭学报,2015,40(7):1555-1561. [10] 倪冠华,林伯泉,翟成,等.钻孔密封材料的微观特性及其对性能的影响[J].北京科技大学学报,2013,35(5):572-579. [11] 国家安全生产监督管理总局.防治煤与瓦斯突出规定[M].北京:煤炭工业出版社,2009. -
期刊类型引用(7)
1. 葛新玉. 新型半流体动态密封材料及密封技术研究. 河南科技. 2024(11): 39-44 . 
百度学术
2. 李茂林. 高水膨胀封孔材料性能的研究与应用. 山西焦煤科技. 2024(09): 1-4 . 百度学术
3. 余岩，唐志华. 回采工作面切缝爆破装药防冲孔技术研究及应用. 煤炭科技. 2024(05): 63-69 . 百度学术
4. 曹远威，徐大连，李兵，刘汉磊，沈礼明. 顶板深孔爆破囊袋式灌浆无机封孔材料试验研究. 煤炭科技. 2022(01): 53-59 . 百度学术
5. 鲁义，谷旺鑫，丁仰卫，李修磊，李亮. 固结软煤层瓦斯抽采钻孔周围裂隙的弹性胶结材料研制. 煤炭科学技术. 2022(02): 129-136 . 百度学术
6. 程健维，赵刚，刘雨涛，汤红枪. 瓦斯抽采钻孔非凝固材料性能与智能封孔装置研究. 煤炭科学技术. 2020(02): 131-135 . 百度学术
7. 吴峙云. 新型材料在建筑改造中的应用. 住宅与房地产. 2019(33): 88 . 百度学术
其他类型引用(2)
计量
- 文章访问数: 147
- HTML全文浏览量: 4
- PDF下载量: 1
- 被引次数: 9
下载:
