Ventilation method for high gas working face based on alternating intake and air return in mine gallery

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221888
APP PUB NO 20250003337A1
SERIAL NO

18885086

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Abstract

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A ventilation method for a high gas working face based on alternating intake and air return in a mine gallery is provided. In this method, an isolated island working face is divided into several sections along a strike direction. A coal pillar is alternately set as a conventional section and a gas-drainage section. Opposite coal pillars in the two mine galleries within the same section are respectively used as the conventional section and the gas-drainage section. Two mine galleries on both sides of the isolated island working face are alternately used as an intake gallery and a return gallery. The coal pillar at the side of the mine gallery as the return gallery is the gas-drainage section. A gas-drainage hole communicating a goaf is provided in the gas-drainage section, so that gas in the goafs at two sides of the isolated island working face can be extracted alternately.

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Patent Owner(s)

  • TAIYUAN UNIVERSITY OF TECHNOLOGY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fan, Jianyu Taiyuan, CN 1 0
Feng, Guorui Taiyuan, CN 13 3
Li, Zhu Taiyuan, CN 84 657
Qi, Chengen Taiyuan, CN 1 0
Wu, Guilin Taiyuan, CN 2 0
Zhang, Jingyu Taiyuan, CN 51 269

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