煤矿硫化氢气体扩散规律及消除实验研究
Experimental Study on Diffusion and Elimination of Hydrogen Sulfide Gas in Coal Mine
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摘要: 为了降低回采工作面硫化氢的浓度，保障工作人员的生命安全和工作面的安全快速回采，分别对富含硫化氢煤体的水样、煤样的成本在国家重点实验室进行化验分析，通过测定回采期间的硫化氢的浓度，得出割煤期间工作面硫化氢扩散浓度分布规律。通过1303回采面打分层钻孔，从纵向角度观测了硫化氢浓度，从而判断了硫化氢来源的煤层。通过在实验室测试碳酸钠、碳酸氢钠、氢氧化钠、氢氧化钙、硫酸亚铁、氯化铁、硫酸铜等试剂及其混合溶液对硫化氢的消除实验，得出实用、有效、安全、经济的硫化氢吸收试剂为碳酸钠，其次为碳酸氢钠。
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关键词:
- 水样分析 /
- 煤样分析 /
- 扩散规律 /
- 分层孔硫化氢浓度观测 /
- 硫化氢气体消除实验
Abstract: In order to reduce the concentration of hydrogen sulfide in the working face, to ensure the safety of workers and the safe and rapid recovery of the working face, the cost of water samples and coal samples rich in hydrogen sulfide coal was analyzed in the national key laboratory. By measuring the concentration of hydrogen sulfide during the recovery, the distribution law of hydrogen sulfide diffusion concentration is the working face during coal cutting is obtained. The layered borehole was drilled through the 1303 recovery face, and the hydrogen sulfide concentration was observed from the longitudinal direction to determine the coal seam derived from hydrogen sulfide. By testing the sodium sulfide, sodium bicarbonate, sodium hydroxide, calcium hydroxide, ferrous sulfate, ferric chloride, copper sulfate and other reagents and their mixed solutions in the laboratory, the experiment of eliminating hydrogen sulfide is practical, effective and safe. The economic hydrogen sulfide absorption reagent is sodium carbonate, followed by sodium hydrogencarbonate. -
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