保德煤矿智能综放工作面建设关键技术研究

Research on key technology of intelligent fully mechanized caving face construction in Baode Coal Mine

  • 摘要: 针对现有智能综放工作面建设的研究成果缺乏某个综放工作面系统化建设实施研究的问题,以国家能源集团神东煤炭集团有限责任公司保德煤矿81309智能综放工作面为研究背景,在液压支架电液控制系统及综采自动化系统配置的基础上,详细介绍了设备升级改造、有限透明开采模型构建、智能放煤工艺决策、煤矸识别方法优化、多模式融合集成控制等关键技术。① 对采煤机电控系统进行国产化升级改造,加装惯导系统,配套光纤复合电缆/5G通信,实现采煤机姿态及控制数据高效稳定传输。采用迈步自移设备列车系统并配套管缆伸缩装置,实现设备列车拉移由1~2人完成。② 对智能规划中心数据源中的地质模型进行迭代修正,经过一系列换算和多源异构数据融合,形成有限透明开采地质模型。③ 针对 81309工作面一刀一放2轮顺序放煤方式,构建了10个智能综放回采阶段并设计了对应的采煤机、综放液压支架、前后刮板输送机的动作和时间,实现了中部跟机自动化采放、三角煤区域自动开采。④ 采用振动煤矸识别与视频煤矸识别相结合的方式,建成智能综放煤矸识别系统。⑤ 以SAM型综采自动化控制系统为枢纽,通过整合液压支架电液控制、视频监控、采煤机电控、三机泵站集控,构建出智能化集中控制系统,初步建成基于透明开采的“采−支−识−放−运”各环节自适应的综放开采工作面。调试结果表明,81309综放工作面中部实现单班自动控制割煤4刀,液压支架实现自动跟机拉架、联动收伸护帮/伸缩梁、自主推溜等功能,智能化集中控制系统可一键启停生产系统,对设备运行数据进行实时监控。

     

    Abstract: The current research achievements in the construction of intelligent fully mechanized caving face lack systematic implementation case for a specific fully mechanized caving face. In order to solve this problem, The 81309 intelligent fully mechanized caving face of Baode Coal Mine, CHN Energy Shendong Coal Group Co.,Ltd. is taken as the research background. Based on the configuration of hydraulic support electro-hydraulic control system and fully mechanized mining automation system, the key technologies such as equipment upgrading and transformation, limited transparent mining model building, intelligent coal drawing process decision-making, optimization of coal gangue recognition method, and multi-mode fusion integrated control are introduced in detail. ① The localization upgrading and transformation of the electric control system of the shearer is carried out. The inertial navigation system is installed. The optical fiber composite cable/5G communication is supported to realize efficient and stable transmission of attitude and control data of shearer. The equipment train can be pulled and moved by 1 - 2 persons by adopting step-type self-shift equipment train and pipe and cable expansion device. ② The iterative correction on the geological model in the data source of the intelligent planning center is carried out. The limited transparent mining geological model is formed through a series of conversions and multi-source heterogeneous data fusion. ③ In view of the sequential coal caving mode of "one cut, one caving and two rounds" in the 81309 working face, 10 intelligent fully mechanized caving mining stages and the corresponding actions and time of shearer, fully mechanized caving hydraulic support, front and rear scraper conveyor are constructed. The automatic mining and drawing in the middle and automatic mining in the triangle coal area are realized. ④ The intelligent coal gangue recognition system of fully mechanized caving is built by combining the vibration coal gangue recognition and video coal gangue recognition technology. ⑤ With the SAM-type fully mechanized mining automation control system as the hub, an intelligent centralized control system is constructed by integrating the electro-hydraulic control of hydraulic support, video monitoring, electric control of shearer and centralized control of pump stations of three machines. The intelligent fully mechanized caving face with adaptation in all links of "mining, support, recognition, caving and transportation" based on transparent mining has been initially built. The debugging results show that the middle part of 81309 fully mechanized caving face can realize the automatic control of 4 coal cutters in a single shift. The hydraulic support can realize the functions of the automatic following machine and pulling frame, linkage receiving and extension guard / expansion beam, and automatic pushing and sliding. The intelligent centralized control system can start and stop the production system with one key, and monitor the equipment operation data in real-time.

     

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