煤矿安全2019，Vol.50Issue(1)：84-86,91,4.DOI:10.13347/j.cnki.mkaq.2019.01.020
典型沿空切巷回采工艺下近距离煤层群防火技术
Key Technology of Fire Prevention for Short Distance Coal Seam Group Under Typical Gob－side Entry with Roof Cutting Mining Technology
于贵生 1汤平2
作者信息
- 1. 煤科集团沈阳研究院有限公司,辽宁 抚顺 113122
- 2. 煤矿安全技术国家重点实验室,辽宁 抚顺 113122
- 折叠
摘要
Abstract
In view of the short spontaneous combustion period of coal seam in southern Sichuan mining area, high difficulty and fire risk of air leakage control in very near distance coal seam group in typical stoping process of gob-side entry with roof cutting, combined with the actual production technology conditions of the mine, through the establishment of the "first exploration, then treatment, last mining" fire prevention mechanism, integrated innovation roof reconstruction, multi-source air leakage test, regional ventilation fire control and other technologies were demonstrated. The application of the technical results show that the key technology of the fire prevention meets the fire protection needs of the working face of gob-side entry with roof cutting in close distance coal seam which is coupled with the fire and gas disaster, and ensures the safety of the key fire protection working face, and the CO gas concentration and temperature are controlled in a reasonable range during the recovery period.关键词
沿空切顶留巷/近距离煤层群/均压/漏风控制/防灭火Key words
gob-side entry with roof cutting/close distance coal seam group/pressure balancing/air leakage control/fire prevention and extinguishing分类
矿业与冶金引用本文复制引用
于贵生,汤平..典型沿空切巷回采工艺下近距离煤层群防火技术[J].煤矿安全,2019,50(1):84-86,91,4.
