大倾角采煤工作面液压支架回撤技术研究  

Hydraulic Support Retraction Technology for Coal Mining Face with Large Dip Angle

作　　者：高亮亮 GAO Liangliang(Equipment Repair and Manufacturing Plant,Shanxi Fenxi Mining(Group)Co.,Ltd.,Jinzhong 032000,Shanxi,China)

机构地区：[1]山西汾西矿业(集团)有限责任公司设备修造厂,山西晋中032000

出　　处：《能源与节能》2024年第12期196-198,共3页Energy and Energy Conservation

摘　　要：针对大倾角采煤工作面液压支架回撤效率低、安全风险高等问题,以7503综放工作面为研究对象,构建了液压支架回撤技术方案,并进行了工程应用。结合7503工作面设备配备情况及开采煤层倾角大的特点,设计了工作面末采期间顶板支护工艺,并提出了开采设备拆除方法及液压支架回撤技术等。现场应用后,7503综放工作面液压支架回撤效率可达到4架/d,实现了工作面液压支架的安全高效回撤,为其他大倾角采煤工作面液压支架回撤工作的开展提供了经验借鉴。In response to the low efficiency and high safety risks of hydraulic support retraction in the coal mining face with large dip angle,taking the 7503 fully mechanized caving face as the research object,a hydraulic support retraction technology scheme was constructed and applied in engineering.Based on the equipment configuration of the 7503 working face and the characteristics of large coal seam inclination during mining,a roof support process during the final mining period of the working face was designed,and methods for dismantling mining equipment and hydraulic support retraction technology were proposed.After on-site application,the retraction efficiency of hydraulic supports in the 7503 fully mechanized mining face can reach 4 supports per day,achieving safe and efficient retraction of hydraulic supports in the face.This provides experience and reference for the retraction work of hydraulic supports in other coal mining faces with large dip angle.

关 键 词：大倾角煤层 液压支架 回撤工艺 液压绞车 

分 类 号：TD355.4[矿业工程—矿井建设]