采煤工作面液压支架与围岩自适应控制技术研究

Research on Coal Mining Working Face Hydraulic Support and Surrounding Rock Adaptive Control Technology

  • 摘要: 针对晋能控股煤峪口矿井下掘进工作面液压支架适应性较差、顶板支护压力不匹配、围岩控制性能复杂等问题,对掘进工作面液压支架和围岩自适应控制技术进行研究,结合煤矿井田概况和围岩特性,采用模糊控制理论提出了一种适用于煤矿井下围岩和液压支架自适应控制方法,通过模糊控制器自动匹配围岩性质和液压支架关键参数。晋能控股煤峪口矿进行现场应用和调试后表明:自适应控制技术可通过调节安全阀的开启压力值适应外部负载的波动,根据围岩性质自动匹配液压支架的支护性能,从而达到最优的支护状态,保证液压支架支护的可靠性和安全性,对保证煤矿采煤工作面的稳定性具有重要的意义,可为后期开展煤矿掘进采煤工作面设备的无人化和智能化提供理论参考。

     

    Abstract: Aiming at the problems such as poor adaptability of hydraulic supports,mismatched roof support pressure,complex surrounding rock control performance and others in dwonhole tunneling working faces of Meiyukou Mine of Jinneng Holdings,a study is conducted on the adaptive control technology of hydraulic supports and surrounding rock in tunneling working faces.Combined with the overview of the coal mine well field and the surrounding rock characteristics,a fuzzy control theory is adopted to propose an adaptive control method suitable for downhole surrounding rock and hydraulic supports in coal mines.Through the fuzzy controller,the surrounding rock properties and the hydraulic support key parameters are automatically matched.After conducting on-site application and debugging in Meiyukou Mine of Jinneng Holdings,it is showed that adaptive control technology can adapt to external load fluctuations by adjusting the opening pressure value of safety valves,automatically match the support performance of hydraulic supports according to the surrounding rock properties,so as to achieve the optimal support state,which is of great significance to ensure the support reliability and safety of hydraulic supports,and to ensure the stability of coal mining working faces in coal mines.This can provide theoretical reference for carrying out unmanned and intelligentization of equipment in tunneling coal mining working faces in the later stage.

     

/

返回文章
返回