厚煤层分层开采矸石充填液压支架研究与应用  

Research and application of gangue filling hydraulic support for layer mining in thick coal seam

作　　者：刘建功[1,2,3] 张定堂 牛旭军 李帅 赵家巍 LIU Jiangong;ZHANG Dingtang;NIU Xujun;LI Shuai;ZHAO Jiawei(Hebei University of Engineering,Handan,Hebei 056038,China;National Energy Backfilling Mining Technology Key Laboratory,Xingtai,Hebei 054000,China;Hebei Industry Technology Research Institute of Coal Mine Ecological Protection and Mining,Handan,Hebei 056038,China;Zhengzhou Coal Mining Machinery Group Co.,Ltd.,Zhengzhou,Henan 450000,China;Shanxi Huashengrong Coal Mine Co.,Ltd.,Changzhi,Shanxi 046000,China)

机构地区：[1]河北工程大学,河北省邯郸市056038 [2]国家能源充填采煤技术重点实验室,河北省邢台市054000 [3]河北省煤矿生态保护开采产业技术研究院,河北省邯郸市056038 [4]郑州煤矿机械集团股份有限公司,河南省郑州市450000 [5]山西华晟荣煤矿有限公司,山西省长治市046000

出　　处：《中国煤炭》2025年第1期51-56,共6页China Coal

基　　金：中央引导地方科技发展资金项目(246Z3803G)。

摘　　要：根据山西华晟荣煤矿有限公司3100工作面赋存条件,结合厚煤层分层矸石充填开采工艺特点,设计了一种四柱支撑掩护式矸石充填液压支架。根据实际生产条件,分别对直接顶载荷、基本顶载荷以及上分层充填体载荷进行了分析计算,得出支架支护强度应大于0.424 MPa,最终确定充填液压支架型号为ZC5000/19/34D,支架伸缩比为1.8。介绍了矸石充填液压支架结构组成和主要技术参数,并对夯实机构结构和功能以及后部刮板输送机吊挂机构进行了详细阐述,优化设计后的后部刮板输送机吊挂机构能够有效缩短后顶梁设计长度,提高后部支护强度6%以上,有效预防充填前顶板下沉。通过实际应用表明,矸石充填液压支架夯实机构可以覆盖后部采空区,通过推压密实保证充填体的密实度,能够有效支撑上覆岩层,达到控制顶板、减少地表下沉的效果。According to the conditions of 3100 working face in Shanxi Huashengrong Coal Mine Co.,Ltd.,combined with the characteristics of thick coal seam layer mining process with gangue backfill,a kind of four-pillar shield hydraulic support for gangue filling was designed.According to the actual production conditions,the loads of immediate roof,main roof,and upper layer filling body were analyzed and calculated,respectively,and it was obtained that the support strength of the support should be greater than 0.424 MPa,and the hydraulic support model for filling was determined to be ZC5000/19/34D finally,with an expansion ratio of 1.8.The structural composition and main technical parameters of the hydraulic support for gangue filling were introduced,and the structure and function of the compaction mechanism,as well as the hanging mechanism of the rear scraper conveyor,were elaborated in detail.The hanging mechanism of optimized rear scraper conveyor could effectively shorten the design length of the rear roof beam,increase the rear support strength by more than 6%,and effectively prevent the roof sinking before filling.The practical application results in coal mines showed that the compaction mechanism of hydraulic support for gangue filling could cover the rear goaf area,and ensure the compactness of the filling body by pushing and compacting,thus achieve the effects of supporting the overlying rock layers,controlling the roof,and reducing surface subsidence.

关 键 词：液压支架 分层开采 矸石充填 夯实机构 

分 类 号：TD355.4[矿业工程—矿井建设]