基于弱黏煤炼焦的焦炭界面及其结合强度研究  

Research on Coke Interface and its Bonding Strength of Slightly Caking Coal in Coking

作　　者：叶友贵 凌强[1] 雷昭[1] 黄龙[1] 崔平[1] 李兴龙 刘涛 

机构地区：[1]安徽工业大学化学与化工学院"煤洁净转化与综合利用"安徽省重点实验室,安徽马鞍山243002 [2]重钢股份公司钢研所,重庆401258 [3]山东钢铁股份公司莱芜分公司焦化厂,山东莱芜271100

出　　处：《安徽工业大学学报（自然科学版）》2015年第3期239-244,共6页Journal of Anhui University of Technology（Natural Science）

基　　金：国家自然科学基金项目(21176002)

摘　　要：依据弱(非)黏结性煤配煤炼焦实际,对David Merrick关于界面结合强度计算式进行优化,并结合不同煤样两两配合炼焦所得焦炭的结构强度和显微强度测试结果,对含有弱黏结性煤参与炼焦的焦炭进行界面结合强度计算和扫描电镜分析。结果表明,优化后的David Merrick计算式比原式更适用于预测弱黏结性煤配煤炼焦所得焦炭的界面结合强度;扫描电镜结果显示,不同变质程度煤进行共炭化后,其所得焦炭界面结合情况不同,在配比为6:4时,肥煤与焦煤的界面结合最好,而气煤与瘦煤的界面结合最差。According to the coal blending coking practice of slight caking coal （non caking coal）, David Merrickinterface bonding strength calculation formula was optimized, and combined with the structure strength and microstrengthdata of coke produced from two different kinds of coal samples, interface bonding strength and morphologyof coke produced from blended coal samples containing slight caking coal were calculated and analyzedwith scaning electron microscope （SEM）, respectively. Results show that optimized David Merrick formula ismore suitable for predicting the interface bonding strength of the coke produced from blended coal containingslight caking coal. After co-carbonization process, interface bonding strength of coke produced from different coalblends is discrepant, as the proportion of coal blends is 6：4, the interface bonding strength of coke produced fromfat coal and coking coal is the strongest, while produced from gas coal and lean coal is the weakest.

关 键 词：弱黏结性煤 配煤炼焦 界面结合 强度计算 

分 类 号：TQ522.1[化学工程—煤化学工程]