摘要
为准确计算取芯过程中煤芯瓦斯的损失量,减少发生煤与瓦斯突出的次数及伤亡人数,基于高低温试验装置所测试的前60 min累计瓦斯解吸量随时间的变化曲线,采用不同解吸公式对不同温度、不同吸附平衡压力下的解吸曲线进行拟合并分析。结果表明:乌斯基诺夫式对于0℃及其以上部分的解吸数据不可拟合,可拟合0℃以下的解吸数据;文特式比王佑安式和孙重旭式的拟合效果好;巴雷尔式、指数式及博特式的拟合效果较差。
In order to accurately calculate the loss of coal core methane in the process of core extraction,reduce the frequency of coal and gas outburst and the number of casualties,relationship curves between cumulative methane desorption quantity of the former 60 minutes and time were drew based on the data obtained from experiments carried out by using a high and low temperature test device. The authors tried to fit the curves with different desorption formulas. The results show that the type of Ustinov could not be completely 0 ℃ above the desorption data and could fit the data on desorption below 0 ℃,that the fitting effect of K.Winter type is better than that of WANG Youan type or that of SUN Chongxu type,and that fitting effects of R.M. Barrell type,exponential type and B.A. Bolt type are poor,and that WANG Youan type,K.Winter type and SUN Chongxu type are applicable to briquette coal samples containing methane regardless of the temperature they are at.
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2017年第12期91-96,共6页
China Safety Science Journal
基金
国家自然科学基金资助(51274090)
河南省高校科技创新团队支持计划(17IRTSTHN030)
关键词
解吸量
高低温
解吸公式
型煤
适用性
desorption quantity
high and low temperature
desorption formula
briquette coal
applicability
