高灰熔融性测定仪在煤灰测定中的应用探究  

Research on the application of high ash fusibility tester in determination of coal ash

作　　者：陈晓东 罗彬彬 CHEN Xiaodong;LUO Binbin(Analysis and Inspection Center of Baling Petrochemical Corporation Ltd.,Yueyang 414001,China;Changsha Kaiyuan Instruments Corporation Ltd.,Changsha 410100,China)

机构地区：[1]巴陵石化股份分公司分析检验中心,湖南岳阳414001 [2]长沙开元仪器有限公司研究院,湖南长沙410000

出　　处：《煤质技术》2020年第3期77-81,共5页Coal Quality Technology

基　　金：国家重点研发计划专项资助项目(2018YFF01014000)。

摘　　要：煤灰熔融性是动力用煤和气化用煤的重要性能指标,研究煤灰熔融特性的影响因素及其调控方法对动力煤的有效利用具有重要意义,而煤灰熔融性的准确测量有利于实际生产控制。采用5E-AF 7000高灰熔融性测定仪对煤气化装置中使用的典型煤种进行多组数据分析,可为灰熔融流动温度大于1500℃的气化煤提供灰熔融性的准确测定数据。通过大量的实验对比以及仪器自动识别准确度、弱还原性气氛下的测试比对、精密度分析,验证了5E-AF 7000高灰熔融性测定仪在满足国标的前提下可将特征温度测定延伸至1720℃,能对煤气化装置中使用的高熔融性气化煤进行准确测试;其放大视频模式可对数据进行自动判断,减少人工判别时的个人误差。高灰熔融性测定仪的投入使用可为煤气化装置的选煤、用煤提供可靠的灰熔融性分析数据。Coal ash fusibility is an important index of steam coal and gasification coal.It is of great significance to study the influencing factors of coal ash fusibility and controlling method for utilization of steam coal,the accurate measurement of coal ash fusibility is conducive to the actual production control.The 5E-AF 7000 high ash fusibility tester is used to analyze multiple groups of typical coal which was used in the coal gasification plant,the accurate measurement data of ash fusibility for the gasification coal with ash fusing flow temperature greater than 1500℃was provided.Through a large amount of experimental comparison,accuracy of instruments automatic recognition,test comparison and precision analysis under weak reducing atmosphere,it was verified that under the conditions of meeting national standards,the 5E-AF 7000 high ash fusibility tester can extend the characteristics temperature to 1720℃,and can accurately test the high fusibility coal used in the coal gasification equipment.The amplified video mode can automatically analyze the data,and reduce the human interference.The application of high ash fusibility tester can provide reliable ash fusibility analysis data for coal preparation and coal consumption of coal gasification plant.

关 键 词：灰熔融性 煤灰测定 灰锥 气化用煤 流动温度 弱还原性气氛 自动识别 准确度 

分 类 号：TQ533[化学工程—煤化学工程]