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A fast moving technology for large mining height face in sequential mining

A technology of working face and large mining height, applied in the field of mobile relocation, can solve the problems of frequent relocation of working face, high pressure of excavation and replacement, and achieve the effect of saving labor costs, ensuring reliability, and ensuring construction safety.

Inactive Publication Date: 2019-08-30
枣庄矿业(集团)付村煤业有限公司
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Problems solved by technology

[0003] In thick coal seams, large mining height, fully mechanized mining, high-yield and high-efficiency working face advances quickly, and the mining replacement pressure is high, and the working face is frequently moved and reversed. Nervous, put forward higher requirements for the rapid moving process of the working face

Method used

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  • A fast moving technology for large mining height face in sequential mining
  • A fast moving technology for large mining height face in sequential mining
  • A fast moving technology for large mining height face in sequential mining

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Embodiment Construction

[0063] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0064] Preliminary Conditions for Rapid Relocation of Sequential Mining Faces

[0065] (1) Construction technology of pre-excavation and withdrawal channel combined with integrated mesh at the end of mining

[0066] 1. The working face to be withdrawn is used in combination with the end-mining process of the whole mesh

[0067] Fumei Co., Ltd. takes the working face to be withdrawn as a research pilot, and adopts the mine-used high-strength polyester fiber flexible mesh (hereinafter referred to as "flexible mesh") roofing process to finish the working face, replacing the traditional metal diamond mesh roofing process. The mesh has large area, flexibility and lightness, high tensile strength, simple process, easy operation, good flame retardant and antistatic performance, avoids frequent mesh transportation and networking procedures, high safet...

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Abstract

The invention relates to a process for rapidly moving the equipment of large-mining-height ordered mining working surfaces. According to the present invention, the working surface to be retracted andthe working surface to be mined are the adjacent ordered mining working surfaces; the working surface to be retracted performs the terminal mining by combining the pre-excavation retracting channel and the net finishing so as to create the conditions for the retracting of the large-volume and large-tonnage comprehensive equipment; and during the installation of the working surface to be mined, thehydraulic bracket and the scraper conveyor are installed after the open-off cut working surface side coal wall is widened to 4 m.

Description

technical field [0001] The invention relates to the moving and relocation of a complete set of fully mechanized mining equipment such as a hydraulic support, a shearer, a scraper conveyor, a reloading machine, etc. in a fully mechanized mining face with a large mining height under a coal mine, and specifically a rapid relocation process for a large mining height working face in sequential mining. Background technique [0002] According to relevant statistics, my country's currently proven geological reserves of coal are about 1 trillion tons, and thick coal seam reserves account for about 45%, and thick coal seam production accounts for about 40% to 50% of the total output. my country's coal industry has a decisive impact on production and economic development. It is worth noting that there are thick coal seams below 6.0m in many mining areas in my country, such as Jincheng, Lu'an, Datong, Yangquan, Xingtai, Xuzhou, Chongzhou, Fuxin, Tongchuan and Shenfu Dongsheng coalfields....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/18
Inventor 于华兵王成张克伟卓俊勇冯飞
Owner 枣庄矿业(集团)付村煤业有限公司
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