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新城金矿“笔直钻孔内多管路下管要领”获得国家发明专利

宣布日期：2021.07.17

　　7月15日，，新城金矿自主研发的“笔直钻孔内多管路下管要领”获得国家发明专利授权。。。。

　　“笔直钻孔内多管路下管要领”是该矿今年获得的第二项国家专利，，该项专利由原来简单钻孔砂浆浇灌固管方式改为大孔径钻孔内同时下放多条管路方式，，使用上下口托梁和支座支持管路，，并接纳细沙回填固管。。。。首次实现了深度250米φ1.2m钻孔内全长无托架下放多条排水排泥管路。。。。首次在钻孔内接纳细沙回填固管，，在井下使用亭式钢管井架和定滑轮组，，实现了单根重量30吨管路在井下受限空间内悬挂，，使用管路步伐扣解决多条管路下放历程焊接位置相互剐蹭、卡管问题，，创立了新的下管方式，，节约了施工用度，，提高了施工效率。。。。

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