摘要
目前煤矿瓦斯抽采封孔工艺主要有聚氨酯封孔和囊带式封孔,2种方式各有特色,通过对比这2种封孔方式的优缺点,认为造成抽采钻孔漏气现象严重,密封质量差,瓦斯抽采不达标的原因主要是无论哪种封孔方式都不能完全隔断钻孔周围的漏气通道—裂隙圈,裂隙圈是必然存在的,囊带式带压封孔工艺通过选取新型封孔材料和设备可以在一定程度上有效封堵裂隙带,提高封孔质量和成功率。
The coal mine gas pumping sealing process mainly include polyurethane sealing and bag belt type sealing, both have their own characteristics. By comparing the two sealing hole of the advantages and disadvantages as well as the resulting drainage drilling leakage phenomenon is serious, poor sealing quality, gas extraction from substandard reason mainly is either hole sealing are not entirely block air leakage passage, fracture around the hole, fissure is necessarily exist, sac belt conveyor belt pressure hole sealing process by choosing new hole sealing materials and equipment can be effectively suppressed to some extent fissure zone, improve the quality of hole sealing and success rate.
出处
《煤矿机械》
2015年第11期152-154,共3页
Coal Mine Machinery
基金
国家自然科学基金(51474098)
关键词
聚氨酯
囊带式
裂隙带
密封质量
polyurethane
sac type
fracture zone
sealing quality
