煤与瓦斯突出热动力学过程试验研究
发布时间：2018-07-23 16:38
【摘要】：为进一步加强煤与瓦斯(甲烷)突出等矿山重大灾害预测预报的工作,开展煤与瓦斯突出全过程热动力现象研究。将煤样破碎后在煤与瓦斯突出相似模拟试验台内加压成型,开展不同粒径煤样的吸附、解吸及突出试验,获取试验过程中的煤体温度变化数据。结果表明:煤与瓦斯突出过程中煤体温度随时间的演化关系近似符合自然对数函数;煤样粒径对煤体温度变化有显著影响,煤样粒径越小,在吸附解吸瓦斯时温度变化量就越大、变化速度也更迅速。通过分析煤与瓦斯突出试验结果及能量关系得出,煤的粒径很大程度上决定了瓦斯吸附能力及瓦斯内能,瓦斯内能又很大程度上决定了煤与瓦斯突出强度。
[Abstract]:In order to further strengthen the work of prediction and prediction of major disasters in mines such as coal and gas outburst, the thermal dynamic phenomena of coal and gas outburst are studied. The coal samples were crushed and formed under pressure in a similar test bed for coal and gas outburst. The adsorption desorption and outburst tests of coal samples with different particle sizes were carried out to obtain the temperature change data of coal body during the test. The results show that the evolution of coal temperature with time in the process of coal and gas outburst is approximately consistent with the natural logarithmic function, and the particle size of coal sample has a significant effect on the change of coal body temperature, and the smaller the coal sample size is, When adsorbing and desorbing gas, the temperature change is larger and the change speed is more rapid. By analyzing the experimental results of coal and gas outburst and the energy relationship, it is concluded that the particle size of coal determines to a great extent the adsorption capacity and internal energy of gas, and the internal energy of gas determines the strength of coal and gas outburst to a great extent.
【作者单位】： 四川师范大学工学院;四川大学水利学与山区河流开发保护国家重点实验室;重庆大学煤矿灾害动力学与控制国家重点实验室;
【基金】：国家重点基础研究发展计划(“973”)项目(2010CB226802) 国家安全监管总局2017年安全生产重特大事故防治关键技术科技项目(sichuan-0004-2017AQ) 四川省安监局安全生产科技攻关项目(scaqjgjc_stp_20150011) 四川师范大学校级项目(14YB01)
【分类号】：TD713
[Abstract]:In order to further strengthen the work of prediction and prediction of major disasters in mines such as coal and gas outburst, the thermal dynamic phenomena of coal and gas outburst are studied. The coal samples were crushed and formed under pressure in a similar test bed for coal and gas outburst. The adsorption desorption and outburst tests of coal samples with different particle sizes were carried out to obtain the temperature change data of coal body during the test. The results show that the evolution of coal temperature with time in the process of coal and gas outburst is approximately consistent with the natural logarithmic function, and the particle size of coal sample has a significant effect on the change of coal body temperature, and the smaller the coal sample size is, When adsorbing and desorbing gas, the temperature change is larger and the change speed is more rapid. By analyzing the experimental results of coal and gas outburst and the energy relationship, it is concluded that the particle size of coal determines to a great extent the adsorption capacity and internal energy of gas, and the internal energy of gas determines the strength of coal and gas outburst to a great extent.
【作者单位】： 四川师范大学工学院;四川大学水利学与山区河流开发保护国家重点实验室;重庆大学煤矿灾害动力学与控制国家重点实验室;
【基金】：国家重点基础研究发展计划(“973”)项目(2010CB226802) 国家安全监管总局2017年安全生产重特大事故防治关键技术科技项目(sichuan-0004-2017AQ) 四川省安监局安全生产科技攻关项目(scaqjgjc_stp_20150011) 四川师范大学校级项目(14YB01)
【分类号】：TD713
【参考文献】
相关期刊论文 前10条
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4 曹W毩，
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