基于煤灰成分建立灰熔点预测经验模型的研究  

Research on Establishing an Empirical Model for Predicting Ash Melting Point based on Ash Composition

作　　者：胡亚超 武成利[1] 陈建杨 陈岩 HU Yachao;WU Chengli;CHEN Jianyang;CHEN Yan(School of Chemical Engineering and Blasting,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学化工与爆破学院,安徽淮南232001

出　　处：《煤》2024年第10期24-28,99,共6页Coal

基　　金：安徽省煤炭资源综合利用工程技术研究中心开放基金(MTYJZX202203)。

摘　　要：煤灰中氧化物含量对煤灰熔融性有决定性的影响。文章以内蒙古某两个矿区的80种煤样研究灰成分中不同氧化物含量与熔融温度的关系,发现某些氧化物的含量与煤灰熔融温度并不是线性关系,采用皮尔逊相关系数和斯皮尔曼相关系数相结合的方式研究其相关性;探究灰成分的幂次方以及硅铝比、酸碱比与灰熔融温度的关系,最终得到了预测模型。相比于其他模型,本模型在预测蒙古煤样中效果更好,预测R^(2)为0.959,误差为23.681℃.The content of oxide in coal ash has a decisive influence on the fusibility of coal ash.Based on 80 coal samples from two mining areas in Inner Mongolia,the relationship between different oxide content in ash composition and melting temperature was studied.It is found that the content of some oxides is not linearly related to the melting temperature of coal ash.Pearson correlation coefficient and Spearman correlation coefficient are used to study the correlation.After that,the power of ash composition,the relationship between the ratio of silicon to aluminum,acid-base ratio and ash melting temperature were investigated,and the prediction model was finally obtained.Compared with other models,this model is more effective in predicting Mongolian coal sample.The prediction of R~2 is 0.959 with an error of 23.681 ℃.

关 键 词：煤灰成分 灰熔融温度 相关系数 预测模型 

分 类 号：TQ536.4[化学工程—煤化学工程]