Volume 49 Issue 2
Feb.  2023
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WU Xicang, ZHANG Xueliang, RUAN Jinlin, et al. Research on key technology of intelligent fully mechanized caving face construction in Baode Coal Mine[J]. Journal of Mine Automation,2023,49(2):141-148.  doi: 10.13272/j.issn.1671-251x.2022060103
Citation: WU Xicang, ZHANG Xueliang, RUAN Jinlin, et al. Research on key technology of intelligent fully mechanized caving face construction in Baode Coal Mine[J]. Journal of Mine Automation,2023,49(2):141-148.  doi: 10.13272/j.issn.1671-251x.2022060103

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

doi: 10.13272/j.issn.1671-251x.2022060103
  • Received Date: 2022-06-28
  • Rev Recd Date: 2023-01-15
  • Available Online: 2022-10-12
  • 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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