矿用新型自锁压注水封孔器

• 作 者: 李坤 凌标灿 苗欢 杨舒迪
• 机 构: 华北科技学院,
• 出 处: 煤矿安全
• 发表日期: 2017年01期
• 关键词: 封孔 泄压 封孔压力 封孔物质 瓦斯抽采 注水效果 压注 煤层注水 水泥砂浆 恢复原状

煤矿目前采用的水泥砂浆封孔和橡胶注水封孔器存在封孔效率低、封孔物质钢管无法回收、注水流量小时封孔器压力会随之泄入钻孔等缺点。矿用新型自锁压注水封孔器,采用双通道结构的封孔器与自锁压式的自封嘴结合的方法,使得封孔压力和封孔时间可控,确保封孔效果,自封嘴确保封孔压力不泄露,可长时间封孔,确保注水效果。橡胶膨胀部分泄压后恢复原状,因此可重复使用,封孔速度快。

At present, cement mortar sealing and rubber water filling sealing devices used in coal mines have low sealing efficiency and can not be recovered from the sealing material steel pipe. When the water filling flow rate is small, the sealing device pressure will be leaked into the drilling holes. New type of self-locking pressure water injection hole sealing device, the use of dual-channel structure of the sealing device and the self-locking pressure self-sealing nozzle combination of methods, making the sealing pressure and sealing time controllable to ensure the sealing effect of self-sealing mouth to ensure Sealing pressure does not leak, sealing a long time to ensure water injection. Rubber expansion part of the pressure relief after the restoration of the original, it can be reused, sealing fast.