粒度对长焰煤瓦斯放散规律的影响研究

Influence Research of Granularity on Gas Diffusion Law of Long Flame Coal

摘要: 为研究粒度对长焰煤瓦斯放散规律的影响，通过建立能够容纳大质量煤样的吸附解吸实验系统，模拟煤样的放散过程。以粒度变化为主要因素，研究不同破坏类型的干燥煤样在恒温（30±1）℃和恒压0.74 MPa条件下的长焰煤瓦斯放散规律，并结合软硬煤的孔隙结构，分析不同煤样的瓦斯放散量、放散初速度的差异性。
- 长焰煤 /
- 粒度 /
- 恒温恒压 /
- 孔隙结构 /
- 瓦斯放散规律
Abstract: In order to investigate the influence of granularity on gas diffusion law, the gas adsorption and desorption experiment system was built which could accommodate massive coal samples, to simulate the gas diffusion process. Taking granularity change as the main factor, the gas diffusion law of long flame coal was studied on dry coal samples with different damage types at constant temperature (30 ± 1) ℃ and constant pressure 0.74 MPa. Combined with the pore structure of soft coal and hard coal, the differences were analyzed about the diffusion amount and the diffusion initial speed of different coal samples.
- long flame coal /
- granularity /
- constant temperature and constant pressure /
- pore structure /
- gas diffusion law

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