禾草沟二号煤矿智能化采煤机自适应截割控制策略分析

Analysis of Adaptive Cutting Control Strategies for Intelligent Shearer in Hecaogou No.2 Coal Mine

  • 摘要: 针对采煤工作面地质构造复杂、煤岩界面频繁变化导致的截割控制精度不足难题,构建融合三维地质建模、多源感知与模糊控制优化的智能自适应截割系统。以禾草沟二号煤矿3号煤层实测数据为基础,建立滚筒调高、牵引速度与煤岩识别的联动控制机制,构建负载驱动的动态控制逻辑;集成视觉、电流、振动及位姿多源信息构建煤岩感知模型,设计模糊规则库实现滚筒高度自动调节与牵引速度协同控制,系统响应时间≤100 ms。现场实测表明,该系统使吨煤电耗下降17.5%、煤炭含矸率降低36.1%、刀具单耗减少34.6%(P<0.05),具备优异的自适应能力与经济性能,为中厚煤层智能化截割控制提供了可靠技术支撑。

     

    Abstract: Aiming at the difficult problem of insufficient cutting control accuracy caused by complex geological structures and frequent changes in coal rock interfaces in coal mining working faces, an intelligent adaptive cutting system that integrates 3D geological modeling, multi-source perception, and fuzzy control optimization is constructed. Taking the actual measured data of No. 3 coal seam in Hecaogou No.2 Coal Mine as the basis, a linkage control mechanism for drum height adjustment, traction speed, and coal rock identification is established, and a load driven dynamic control logic is constructed; Multi-source information of visual, current, vibration, and pose are integrated to construct a coal rock perception model, a fuzzy rule base is designed to achieve automatic adjustment of drum height and collaborative control of traction speed, with a system response time of ≤ 100 ms. The on-site actual measurements show that this system decreases the power consumption by 17.5% per ton of coal, decreases the coal gangue content by 36.1%, and reduces the unit consumption of pick consumption by 34.6% (P<0.05), with excellent adaptive ability and economic performance, providing a reliable technical support for intelligent cutting control of medium-thick coal seams.

     

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