典型炼焦煤成焦界面结合特性及其焦炭高温强度的研究  

Study on the interfacial bonding characteristics of typicaland the high temperature strength of coking coal

作　　者：夏婧 刘洋[1] 郑亚杰 武振宇 徐国忠[1] 曲艳婷 刘冰 白金锋[1] Xia Jing;Liu Yang;Zheng Yajie;Wu Zhengyu;Xu Guozhong;Qu Yanting;Liu Bing;Bai Jinfeng(University of Science and Technology Liaoning;ACRE Coking and Refractory Engineering Consulting Corporation,MCC;Tanggang Meijin(Tangshan)Coal Chemical Co.,Ltd.)

机构地区：[1]辽宁科技大学化工学院 [2]中冶焦耐工程技术有限公司 [3]唐钢美锦(唐山)煤化工有限公司

出　　处：《冶金能源》2024年第2期15-20,35,共7页Energy For Metallurgical Industry

基　　金：国家自然科学基金资助项目(22378181);中国五矿科技专项计划资助项目(2020ZXA01)。

摘　　要：焦炭的界面结合对提高焦炭质量有十分重要的作用。实验选用五种炼焦煤分别配入弱粘结性的XS贫瘦煤进行坩埚焦实验,随着煤料粒度增大和贫瘦煤含量增加,炼焦煤界面结合指数下降。肥煤自身黏结性好,界面结合指数影响较小,而1/3焦煤和焦煤则影响较大。同时分别完成了LF煤和XQ煤与XS贫瘦煤的共炭化实验,表明随着界面结合指数的提高,焦炭的高温热性能得到了较好改善。相应地,微晶结构更加规整,碳层堆积高度和碳网平面直径增大。The interface bonding of coke plays an important role in improving the quality of coke.In this paper,five kinds of coking coals were mixed with weak-caking XS coals respectively to carry out crucible coke experiments.That the interface bonding index of coke decreases with the increase of particle size of coal and inert content.Fat coal had good self-bonding and little influence on interface bonding index,while 1/3 coking coal and coke coal had great influence.The co-carbonization experiments of LF coal,XQ coal and XS coal were also carried out.Experiments show that the thermal properties of coke at high temperature were improved with the increase of interfacial bonding index.Accordingly,the microcrystalline structure was more regular,the stacking height of carbon microcrystalline and the plane diameter of carbon net also was showed an increasing trend.

关 键 词：炼焦煤 界面结合 焦炭反应性 抗压强度 高温溶损 

分 类 号：TQ520.1[化学工程—煤化学工程]