下向水平分层进路胶结充填采矿法在毛坪铅锌矿的应用  

Application of downward horizontal layered drift cementing and filling mining method in Maoping lead zinc mine

作　　者：孙承超 罗磊 梁燕兵 SUN Chengchao;LUO Lei;LIANG Yanbing(Yiliang Chihong Mining Co.,Ltd.,Zhaotong 657602,China)

机构地区：[1]彝良驰宏矿业有限公司,云南昭通657602

出　　处：《中国矿业》2023年第S01期382-385,397,共5页China Mining Magazine

摘　　要：由于毛坪铅锌矿矿区整合后矿区面积和生产规模扩大,基于矿床开采技术条件,确定了毛坪铅锌矿最新地下采矿方案,围绕矩形、六边形两种形状采场的采准工程布置、回采工艺、充填等工序,介绍了下向水平分层进路胶结充填采矿法在毛坪铅锌矿的实际应用情况。设计每间隔60 m划分为一个盘区,中段段高为60 m,每12 m设置一个分段;采用YT-28凿岩机凿岩,人工遥控多模式驾驶铲运机出矿,进路采空区分层充填,其打底层充填体灰砂比1∶4,28 d单轴抗压强度要求4.5 MPa以上。生产实践表明,毛坪铅锌矿采用下向水平进路胶结充填采矿法进行回采,矩形进路采场生产能力150~200 t/d,六边形进路采场生产能力360 t/d。在相当充填体顶板保护下,六边形进路相较于矩形进路其断面更大,回采效率更高。Due to the expansion of the mining area and production scale after the integration of the Maoping Mine,the latest underground mining plan of the Maoping Mine has been determined based on the mining technology conditions of the deposit.The practical application of the downward drift cementing filling mining method in the Maoping Mine is introduced around the mining preparation engineering layout,mining process,filling and other processes of rectangular and hexagonal stopes.Design a panel with an interval of 60 m,with a middle section height of 60 m and a section set every 12 m.Using YT-28 rock drill,manual and remote control multi-mode driving scraper for ore extraction,with layered filling in the goaf of the approach road.The bottom layer filling body has a lime sand ratio of 1∶4,and the 28 d uniaxial compressive strength is required to be above 4.5 MPa.Production practice has show that the Maoping Mine adopts the downward horizontal drift cemented filling mining method for mining,with a production capacity of 150-200 t/d for rectangular drift stopes and 360 t/d for hexagonal drift stopes.Under the protection of equivalent backfill roof,the hexagonal approach has a larger cross-section and higher mining efficiency compared to the rectangular approach.

关 键 词：胶结充填采矿法 矩形采场 六边形采场 生产应用 

分 类 号：TD853[矿业工程—金属矿开采]