Research on application of equipment pullback technology in 8.8 m super-high fully mechanized mining face
HAO Yubing
The equipment of super-high mining height working face is large in volume and weight, making it more difficult to withdraw the working face. The 12401 fully mechanized working face in Shangwan Coal Mine is 8.8 m super-high intelligent working face, and its rapid retreat is an urgent problem to be solved. In order to ensure safe and efficient withdrawal of equipment at 8.8 m super-high intelligent working face of 12401 fully mechanized mining face and reduce the impact on production connection, the practice of intelligent safe and rapid withdrawal of equipment at super-high working face of 12401 fully mechanized mining face is carried out. The scheme and process arrangement of hydraulic support, shearer, hydraulic support and other large equipment in fully mechanized mining face with super large mining height are proposed, and the combined support technology of “bolt + mesh + anchor cable + steel belt + invisible tray” is proposed for the space roof of the pullback. The practice shows that the safe and efficient withdrawal of equipment in 12401 fully mechanized working face with 8.8 m super-mining height in Shangwan Coal mine only takes 15 d, which improves the safety factor and withdrawal efficiency, and the process application effect is good, providing theoretical basis and technical reference for the safe and efficient withdrawal of 8.8 m fully-mechanized working face with over-mechanized working height.
super-high mining height;Fully mechanized mining face;withdrawal process
主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会