摘要
文章探讨了国标GB/T 5447—2014中未进行细化规定的样品烘干时间、制备粒度、制备时间、试样搅拌方式、试样存放时间对黏结指数测定结果的影响。选取焦煤和气煤两种常用烟煤进行了实验研究。研究结果表明,样品干燥时间、样品粒度、样品制备时间对G值的测定结果影响明显,样品分析环节样品的存放时间对G值的测定结果影响次之,搅拌方式对G值的测定结果影响最小。通过实验给出了相关影响因素的细化控制条件以达到提高烟煤黏结指数测定结果准确性的目的。
In the article,it is discussed the effects of drying time,prepared sizes,preparation time,stirring means and storage time of samples on measurement results of caking index which are not specified in the national standard GB/T 5447—2014.Such two types of frequently-used bitumite,coking coal and gas coal are selected for experimental study.The study results showed that the effects of drying time,particle size and preparation time of samples on measurement results of G value were the most significant,the effects of analysis link and storage time of samples on measurement results of G value took second place,while the effects of stirring means on measurement results of G value were minimum.The specified control conditions of related influencing factors are given through experiments so as to achieve the goal of improving the accuracy of measurement results for caking index of bitumite.
作者
孙志峰
钱胜文
梁艳芳
王瑞军
Sun Zhifeng;Qian Shengwen;Liang Yanfang;Wang Ruijun(Chemical Inspection Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)
出处
《包钢科技》
2025年第3期77-80,共4页
Science & Technology of Baotou Steel
关键词
烟煤
黏结指数
影响因素
bitumite
caking index
influencing factors
