利用工业分析结果计算煤的发热量
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摘要
对232组煤的热值及其对应的工业分析数据进行回归分析,推导出煤的发热量与挥发分和固定碳的经验公式、发热量与煤灰含量的定量关联式,两式均具有相当高的相关系数,分别为R2=0.997 9、R2=0.936 9,其计算结果的平均误差均在±5.0%内。对31批次煤物理特性和化学成分分析标准物质的相关煤质数据的验算具有良好的准确度,表明该经验公式可供快速预测煤的发热量时使用。
Regression analysis was performed on 232 groups of the coal calorific value and the corresponding proximate analysis data.The empirical formula between calorific value and the volatile content and fixed carbon of coal,and the quantitative correlation formula between calorific value and coal ash content were derived,both of them had relatively high correlation coefficients,R2=0.997 9 and R2=0.936 9 respectively,the average error of the calculation results was within ±5.0%.The formulas were testfied to be of good accuracy by calculating the calorific value of 31 standard materials for analysis of physical and chemical compositions of coals.It is shown that the empirical formulas can be used to quickly predict the calorific value of coal.
Regression analysis was performed on 232 groups of the coal calorific value and the corresponding proximate analysis data.The empirical formula between calorific value and the volatile content and fixed carbon of coal,and the quantitative correlation formula between calorific value and coal ash content were derived,both of them had relatively high correlation coefficients,R2=0.997 9 and R2=0.936 9 respectively,the average error of the calculation results was within ±5.0%.The formulas were testfied to be of good accuracy by calculating the calorific value of 31 standard materials for analysis of physical and chemical compositions of coals.It is shown that the empirical formulas can be used to quickly predict the calorific value of coal.
引文
[1]龚露,罗吉国.煤质分析中发热量与固定碳的简易互算[J].广州化工,2009(3):69-70.
[2]陈文敏.利用工业分析和元素分析结果计算我国各种煤的发热量[J].煤炭转化,1981,4(S1):62-72.
[3]陈文敏,姜宁.利用工业分析、元素分析数据计算我国煤炭热值的新回归式[J].煤炭分析及利用,1993(1):20-22.
[4]刘天新,陈文敏.利用工业分析结果推导计算我国煤低位发热量的新公式[J].煤炭科学技术,1992,20(7):40-44.
[5]范清玉,李万江.利用工业分析结果计算烟煤发热量[J].中国氯碱,2004(6):44.
[6]鹿建,李梅,张洪.煤炭发热量工业分析法与氧弹法测定结果比较[J].水泥,2004(4):49-51.
[7]李徐平,李国庆,李芳莲.煤的发热量经验公式及其在煤质分析中的应用[J].轻金属,2002(1):28-29.
[8]胡军,郑宝山,吴代赦,等.经验公式对全国煤实测发热量的检验[J].煤炭转化,2006,29(1):1-5.
[9]姚多喜,支霞臣,郑宝山.煤中矿物质在燃烧过程中的演化特征[J].矿业安全与环保,2002,29(3):4-5.
[2]陈文敏.利用工业分析和元素分析结果计算我国各种煤的发热量[J].煤炭转化,1981,4(S1):62-72.
[3]陈文敏,姜宁.利用工业分析、元素分析数据计算我国煤炭热值的新回归式[J].煤炭分析及利用,1993(1):20-22.
[4]刘天新,陈文敏.利用工业分析结果推导计算我国煤低位发热量的新公式[J].煤炭科学技术,1992,20(7):40-44.
[5]范清玉,李万江.利用工业分析结果计算烟煤发热量[J].中国氯碱,2004(6):44.
[6]鹿建,李梅,张洪.煤炭发热量工业分析法与氧弹法测定结果比较[J].水泥,2004(4):49-51.
[7]李徐平,李国庆,李芳莲.煤的发热量经验公式及其在煤质分析中的应用[J].轻金属,2002(1):28-29.
[8]胡军,郑宝山,吴代赦,等.经验公式对全国煤实测发热量的检验[J].煤炭转化,2006,29(1):1-5.
[9]姚多喜,支霞臣,郑宝山.煤中矿物质在燃烧过程中的演化特征[J].矿业安全与环保,2002,29(3):4-5.