煤矿井下定向钻机钻进参数监测系统研制
Development of drilling parameter monitoring system for directional drilling rig in coal mine
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摘要: 针对煤矿坑道用全液压定向钻机无法直接实现参数监测、实时存储和集中显示的问题，为满足煤矿井下定向钻进过程精确控制和钻进参数优化需求，基于通用性、稳定性和可拓展性的开发原则，研制了一款基于PLC为主控制核心的煤矿井下定向钻机钻进参数监测系统，具备多种钻进参数实时监测、数据自动存储、远程数据传输、参数图形化显示、工况识别与故障报警等功能。系统进行了工作性能室内对比测试，并在神华神东煤炭集团保德煤矿结合大功率定向钻机开展了现场试验，试验结果表明：该参数监测系统安装快捷，运行稳定，能准确监测钻机运行过程中的各种钻进参数，测量误差小于1.25%，并实时储存于后台数据库，对钻进过程和钻机运行的异常情况能即时报警，可有效提高钻孔施工质量，预防孔内事故发生，对煤矿井下定向钻进工艺参数优化和钻进理论研究具有重要作用，并为煤矿井下定向钻进装备的机械化、自动化和智能化发展提供了技术保障。Abstract: According to problem that drilling parameters cannot be directly monitored and stored in real-time and centralized display in the drilling process of full hydraulic tunnel directional drilling rig in coal mine, in order to meet the precise control of directional drilling process and optimization of drilling parameters in coal mine, based on the research purpose of generality, stability and expansibility, the drilling parameter monitoring system for directional drilling rig in coal mine based on PLC is developed, which has many functions such as real-time monitoring of drilling parameters, automatic data storage, remote data transmission, graphical display of parameters, condition recognition and failure alarm. In order to verify performance and reliability of system, a performance test of the system is carried out, after that a field test is carried out combined with high-power directional drilling rig in Baode Coal Mine,Shenhua Shendong Coal Group. The test results show that the parameter monitoring system can be quick installed and stable in operation, and all kinds of drilling parameters can be accurately monitored during the drilling process while the measurement error is less than 1.25%, and the drilling parameters can be stored in the backstage database in real time. At the same time, the system will alarm while the drilling process and condition of the drilling machine are abnormal. The application of the system can effectively improve the quality of drilling borehole and prevent drilling accidents in the borehole, which will play an important role in optimization of technological parameters and theoretical study of directional drilling in coal mine, and provide technical support for mechanization, automation and intelligent development of directional drilling equipment in coal mine.
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