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| EXPERIMENTAL STUDY ON IMPACT OF WATER RATIO TO ADSORPTION OF LUMP COAL |
| FENG Zengchao，ZHAO Dong，ZHAO Yangsheng |
| (Institute of Mining Technology，Taiyuan University of Technology，Taiyuan，Shanxi 030024，China) |
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Abstract In order to study the effecting degree on coal adsorption property of groundwater，the experiment begins with adsorption character coal samples under the condition of drought and water-bearing. These samples are fetched from No.3 coal seam in Lu¢an Tunliu Coal Mine. And then conclusions are as follows：(1) there is a logarithm relation between gas pressure and time，and the attenuation coefficient decreases with the increase of water-bearing ratio using adsorption of fixed-volume method；(2) there is an exponent relation between gas adsorption capacity and time；and (3) there also is a linearity relation between gas adsorption capacity and water-bearing ratio of coal samples，both of which are different from powder coal.
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Received: 27 March 2009
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LI Botao1, 2, 3, TAN Yuxuan1, LIN Haifei4, 5*, WEI Jianping1, 2, 3, ZHANG Hongtu1, 2, 3, LI Shugang4, 5, WEI Zongyong4, 5, WANG Pei4, LUO Rongwei4, LIU Yanwei1, 2, 3. Mechanical properties and mesoscopic damage evolution of coal under liquid-nitrogen freezing at different initial temperatures[J]. , 2026, 45(6): 1757-1772. |
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