Patents by Inventor Yijiang FAN

Yijiang FAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for carrying out grouting between adjacent gateroads in internal-staggered split-level coal mining
    Patent number: 11959383
    Abstract: A method for carrying out grouting between adjacent gateroads in internal-staggered split-level coal mining. A return air gateroad of a stoping face and an inlet air gateroad of a heading face are not on the same level. The return air gateroad of the stoping face is arranged along a roof of a coal seam. The inlet air gateroad of the heading face is arranged along a floor of the coal seam. There is a height difference between the return air gateroad and the inlet air gateroad in a vertical direction. During the construction process, the inlet air gateroad is excavated at a delay distance of 180-200 meters from the return air gateroad. The drilling and grouting are performed while excavating the roadway, where grouting holes are arranged in a single row. A device for implementing the method is also provided.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: April 16, 2024
    Assignee: Taiyuan University of Technology
    Inventors: Guorui Feng, Yijiang Fan, Pengfei Wang, Chenliang Hao, Xiaoze Wen, Jun Guo, Jinwen Bai, Tingye Qi, Jianan Liu, Linjun Zhu, Changquan Wu
  • METHOD AND DEVICE FOR CARRYING OUT GROUTING BETWEEN ADJACENT GATEROADS IN INTERNAL-STAGGERED SPLIT-LEVEL COAL MINING
    Publication number: 20220282619
    Abstract: A method for carrying out grouting between adjacent gateroads in internal-staggered split-level coal mining. A return air gateroad of a stoping face and an inlet air gateroad of a heading face are not on the same level. The return air gateroad of the stoping face is arranged along a roof of a coal seam. The inlet air gateroad of the heading face is arranged along a floor of the coal seam. There is a height difference between the return air gateroad and the inlet air gateroad in a vertical direction. During the construction process, the inlet air gateroad is excavated at a delay distance of 180-200 meters from the return air gateroad. The drilling and grouting are performed while excavating the roadway, where grouting holes are arranged in a single row. A device for implementing the method is also provided.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 8, 2022
    Inventors: Guorui FENG, Yijiang FAN, Pengfei WANG, Chenliang HAO, Xiaoze WEN, Jun GUO, Jinwen BAI, Tingye QI, Jianan LIU, Linjun ZHU, Changquan WU