大倾角工作面液压支架撤除技术研究  

Research on hydraulic support removal technology in large inclined working face

作　　者：代卫卫 陈建荣 方明阳 DAI Weiwei;CHEN Jianrong;FANG Mingyang(China Coal HuaJin Group Hanzui Coal Industry Co.,Ltd.,Linfen 042100,China)

机构地区：[1]中煤华晋集团韩咀煤业有限公司,山西临汾042100

出　　处：《煤炭科学技术》2020年第3期140-146,共7页Coal Science and Technology

基　　金：国家自然科学基金资助项目(51674135)。

摘　　要：为了解决大倾角工作面液压支架拆除作业中的调向、运输、运输巷支护等难题,并寻求更加安全、高效的施工方法,以韩咀煤业32111工作面为背景,从优化传统施工工艺层面进行研究,提出了"柔性网+机械臂+轨道导向运输+绞车接力牵引"的成套回撤新工艺。结果表明:该新工艺确保了回撤期间的顶板稳定,有效治理了支架回撤后采空区侧顶板垮落引发的各类安全隐患,为支架拆除回撤提供了足够的安全空间;使用机械臂出架、降架、隔架操作的工艺,在支架出架、转向过程中无需施工多根单体,保证了作业人员安全距离;实现了多变坡、长距离连续整架运输,实现了液压支架在轨道上的导向运输,使支架拆除工效达到了较为理想的4架/d,完成了该工作面大型液压支架的安全高效撤除。该新工艺可为大倾角、地质条件复杂工作面的撤除作业提供借鉴。In order to solve the problems of orientation,transportation,and road support during the removal of hydraulic supports at largeinclined working faces,and to seek a safer and more efficient construction method,the No.32111 working face of Hanzui Coal Industry was used as the background to optimize the traditional construction process.Research was carried out at different levels,and a new set of withdrawal process of"flexible mesh+mechanical arm+track-oriented transport+winch relay traction"was proposed.The results show that the new process ensures the stability of the roof during the retreat and effectively manages various hidden safety hazards caused by the collapse of the side roof of the gob after the retreat of the bracket,and provides sufficient safety space for the detachment of the bracket.The process of operating the arm out of the rack and lowering the shelf does not require the construction of multiple units during the process of out of the rack and the steering process,ensuring a safe distance for the operator;the multi-slope and long-distance continuous transportation of the entire frame is achieved.Guided transportation on the track has made the bracket removal work efficiency reach the ideal 4 racks per day,and the safe and efficient removal of the large hydraulic support of the working face is completed.The new process can provide reference for the removal operation of complex geological conditions with large dip angles.

关 键 词：大倾角工作面 大型支架 撤除技术 绞车接力牵引 

分 类 号：TD524[矿业工程—矿山机电]