为解决古汉山煤矿瓦斯抽采浓度低的难题,在分析封孔工艺基础上,研制了一套高效节能的新型便携式四柱塞注浆泵,同时输送2种封孔化学浆液,严格按1:1比例混合。注浆泵输出压力高,排出的高压浆液对钻孔内裂隙充填密实,堵死漏气通道,与传统封孔注浆泵相比,效率高,封孔质量好,所封钻孔瓦斯抽采浓度高,为煤矿瓦斯抽采,提供了一套既安全可靠,又节能环保的封孔机械设备。 In order to solve the problem of low gas concentration in Guhanshan coal mine, a new type of portable four-plunger grouting pump with high efficiency and energy saving was developed on the basis of analyzing the sealing technology. Two kinds of sealing chemical grouts were delivered at the same time, 1 ratio mixed. Grouting pump output pressure is high, the discharge of high-pressure slurry fills the fracture fissures in the drill hole, block the leakage channel, compared with the traditional sealing grouting pump, high efficiency, sealing the hole is good, High concentration, for the mine gas extraction, providing a set of both safe, reliable, but also energy-saving seal sealing machinery and equipment.