透明工作面采煤机规划调高策略研究

    Research on planning height adjustment strategy of shearer in transparent working face

    • 摘要: 基于透明工作面地质模型,提取规划截割曲线,制定采煤机调高策略是煤矿智能开采的核心;其中研究采煤机如何利用截割曲线实现高效截割是打通地质模型与综采设备智能联动的关键;采煤机通过控制摇臂进行规划截割,摇臂的控制是通过调节油缸的高度决定的,如何将透明地质模型的采高、俯仰角、倾伏角等参数转化为调节采煤机油缸高度的参数是实现透明工作面规划截割的关键。分析了基于透明地质模型的截割曲线规划原理,建立了透明工作面自动调高模型,分析了截割曲线与油缸调节高度之间的映射关系,并在此基础上进行了采煤机规划调高的工程应用,验证以地质模型指导采煤机规划调高的可行性。研究结果表明:基于透明地质得到的截割曲线能够指导采煤机实现高效采煤;从截割曲线计算得到的采高、卧底和坡度等关键参数可控制采煤机油缸的自动调高;在构建采煤机自动调高模型和分析相关影响因素的基础上,通过提高模型精度可达到精准控制油缸高度的目的,为实现透明工作面智能开采提供了坚实的技术支撑。

       

      Abstract: Based on the geological model of the transparent working face, extracting the planned cutting curve and formulating the height adjustment strategy of the shearer is the core of intelligent coal mining. Among them, studying how the shearer uses the cutting curve to achieve efficient cutting is the key to open up the intelligent linkage between the geological model and the fully mechanized mining equipment. The shearer is planned and cut by controlling the rocker arm, and the control of the rocker arm is determined by adjusting the height of the oil cylinder. Parameters are the key to realize transparent working face planning and cutting. Therefore, this paper analyzes the cutting curve planning principle based on the transparent geological model, establishes the automatic height adjustment model of the transparent working face, and analyzes the mapping relationship between the cutting curve and the adjustment height of the oil cylinder, and on this basis, the coal mining is carried out. The engineering application of the shearer planning height adjustment is used to verify the feasibility of guiding the shearer height adjustment with the geological model. The research results show that: the cutting curve obtained based on transparent geology can guide the shearer to achieve efficient coal mining; the key parameters such as mining height, undercover and slope calculated from the cutting curve can control the automatic adjustment of the shearer cylinder. Based on the construction of the shearer automatic height adjustment model and the analysis of related influencing factors, the purpose of precise control of the height of the oil cylinder can be achieved by improving the accuracy of the model, which provides a solid technical support for the realization of intelligent mining of transparent working faces.

       

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