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| Study on fire-prevention technology by infusing nitrogen of Shuiyu Mine 61106 working face |
| Zhang Shuping1, Li Jichuan2 |
| 1. Shuiyu Mine, Shanxi Coking Coal Fenxi Mining Group, Lvliang 032302, China; 2. Mining and Coal College, Inner Mongolia University Of Science and Technology, Baotao 014010, China |
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Abstract Based on the study of three zones division and distribution law of Shuiyu Mine 61106 working face, parameters of inerting bandwidth, length oxygen content of initial and intermittent nitrogen injection of nitrogen injection fire-fighting technology in oxidizing zone were settled. Auxiliary spraying of chemical inhibitor and strengthening of air distribution, monitoring and recovery rate in working face were improved to avoid probability of a natural fire to the maximum.
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