淮北1/3焦煤与不同地域同类炼焦煤的差异性研究  

Differences between Huaibei 1/3 coking coal and similar coking coal from different regions

作　　者：孟庆勇[1] 凌强[2] 张伟[1] 雷昭[2] 崔平[2] MENG Qing-yong;LING Qiang;ZHANG Wei;LEI Zhao;CUI Ping(Huaibei Mining Co.,Ltd..Coal Distribution Branch,Huaibei,Anhui 235000,China;School of Chemistry and Chemical Engineering,Anhui University of Technology,Ma'anshan,Anhui 243032,China)

机构地区：[1]淮北矿业股份有限公司煤炭运销分公司,安徽淮北235000 [2]安徽工业大学化学与化工学院,安徽马鞍山243032

出　　处：《煤炭加工与综合利用》2024年第6期72-75,83,共5页Coal Processing & Comprehensive Utilization

摘　　要：选取4种淮北典型1/3焦煤和4种不同地域同类1/3焦煤为研究对象,对比分析了不同煤样官能团结构、化学性质和工艺性质的差异。结果表明,4种淮北1/3焦煤煤样总体挥发分和硫分相对较低,灰分偏高,而灰成分中矿物质催化指数MCI相对较低,碱金属含量低;其中,许疃、杨柳和孙疃1/3焦煤的活惰比、b值和Y值相对较高,且煤样软化温度低,软固区间温度宽,最大流动度高于其它煤样,表明煤样胶质体的流动性和热稳定性较好,可以替代部分优质肥煤使用。与印尼1/3焦煤相比,国内7种1/3焦煤整体的芳香缩合度较高,变质程度高,煤中SiO_(2)含量较高,其中淮北煤样中的杨柳、孙疃1/3焦煤的羟基含量高,而芦岭、许疃1/3焦煤的SiO_(2)含量相对较高。Four typical 1/3 coking coal from Huaibei and four 1/3 coking coal from different regions as the research objects have been compared and analyzed to identify the differences in functional group structure,chemical properties,and process properties.The results showed that the volatile and sulfur content of the four Huaibei 1/3 coking coal samples were relatively low,while the ash content was relatively high.Moreover,thelower MCI of the ash components indicates a low alkali metal content in Huaibei coal sample.Among them,the relatively higher activity to inertness ratio,b and Y,and thier lower softening temperature with a wide soft solid range temperature,higher maximum fluidity of Xutuan,Yangliu,and Suntuan 1/3 coking coal samples all indicates that the above three coal samples have good colloid flowability and thermal stability,and can be used as substitutes for some high-quality fertilizer coal.Compared with 1/3 coking coal in Indonesia,the overall aromatic condensation degree of 7 types of 1/3 coking coal in China is higher,implying the increased degree of metamorphism,and the SiO_(2)content in the coal is also higher.Furthermore,the Yangliu and Suntuan 1/3 coking coal show higher hydroxyl content,while Luling and Xutuan 1/3 coking coal show relatively higher SiO_(2)content than others.

关 键 词：淮北1/3焦煤 煤质分析 塑性指标 官能团 灰成分 

分 类 号：TQ533[化学工程—煤化学工程]