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CUI Yao，WU Jinghong，YE Zhuang，et al. Research and application of key technology of intelligent coal caving in high gas fully-mechanized top coal caving face[J]. Coal Science and Technology，2023，51（10）：252−265

. DOI: 10.13199/j.cnki.cst.2022-1407
Citation:

CUI Yao，WU Jinghong，YE Zhuang，et al. Research and application of key technology of intelligent coal caving in high gas fully-mechanized top coal caving face[J]. Coal Science and Technology，2023，51（10）：252−265

. DOI: 10.13199/j.cnki.cst.2022-1407
shu

Research and application of key technology of intelligent coal caving in high gas fully-mechanized top coal caving face

  • 1.

    Beijing Tianma Intelligent Control Technology Co., Ltd., Beijing 101399, China

  • 2.

    Shenhua Shendong Coal Group Co., Ltd., Ordos 017209, China

Funds: 

Shendong Baode "Research on Intelligent Control Technology for Fully mechanized Top coal caving" funding project (00000 50048)

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  • Received Date: August 29, 2022
  • Available Online: September 25, 2023
    Graphical Abstract
    • Abstract

  • At present, intelligent coal caving in high gas fully mechanized top coal caving face is facing many problems, mainly including poor recognition accuracy of coal gangue, incomplete control research on coal flow and gas concentration, cumbersome design and development of follow-up process, and slow response of control system.In order to solve these problems, this paper developed a cloud side collaborative intelligent coal caving control system based on 5G communication.The system includes 5G network, cloud server, edge processor, terminal execution equipment, etc.It has a high data transmission speed, control response speed and data processing capability.Based on the analysis of fully mechanized coal caving process parameters and intelligent coal caving process flow, elaborates the four key technologies of intelligent coal caving the coal gangue identification technology, big block coal identification and coal flow load balance technology, gas safety linkage control technology, and digital twin technology of coal caving following machine.The application test was carried out in Baode 81309 fully mechanized top coal caving face.After the intelligent fully mechanized top coal caving technology was adopted, the top coal recovery rate increased from 86% to 93%, the coal gangue rate decreased from 21% to 15%, the total production efficiency increased by 10%, and the number of coal caving operators decreased from 3 to 4 to 1 to 2.The cloud edge collaborative intelligent coal caving control system based on 5G communication developed in this paper and its key technologies can also be extended to other fully mechanized coal caving faces, which is of great value for reducing personnel and increasing efficiency and safe and efficient mining of coal mines.

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