气煤配煤炼焦对焦炭热性质及孔结构的影响  

Coking with gas coal blended affected tothermal property and pore structure of coke

作　　者：季斌 位革老 张凤桐[3] 王杰平 谢全安 梁英华 

机构地区：[1]华北理工大学化学工程学院,河北唐山063009 [2]中国神华海外开发投资有限公司,北京100011 [3]开滦(集团)有限责任公司煤炭质量检测中心,河北唐山063009

出　　处：《煤炭科学技术》2015年第5期139-143,共5页Coal Science and Technology

基　　金：国家自然科学基金煤炭联合基金资助项目(U1361212)

摘　　要：基于气煤与1/3焦煤、肥煤、焦煤的40 kg焦炉配煤炼焦试验,利用焦炭热性质、气孔结构、SEM等表征手段观察焦炭的宏观和微观结构变化,研究气煤与其他炼焦煤的交互作用机理。研究结果表明:在配煤炼焦中,肥煤对气煤的包容能力最强,气煤配比应以肥煤为基数加以控制。随着气煤配比的增加,焦炭各项气孔参数发生明显变化,焦炭热性质逐步劣化且存在急剧劣化点,气煤参与成焦对焦炭热性质的影响主要是通过改变气孔结构实现的。Based on the blended coal coking test in 40 kg coking oven with gas blended with 1 /3 coking coal,fat coal and coking coal,the coking coal thermal property,pore structure,SEM and other characteristic means were applied to observe the macro and micro structure variation of the coke and to study the interaction mechanism between the gas coal and other coking coal. The study results showed that in the blended coal coking,the fat coal would have high containment capacity to the gas coal and gas blending rate should be controlled based on fat coal as the base. With the gas coal blending rate increased,each pore parameters of coke would be varied obviously and the thermal property of coke would steadily be deterioration and would have a serious deterioration point. The coking with the gas coal affected to the coke thermal property mainly to realize by the pore structure changed.

关 键 词：气煤 配煤炼焦 焦炭热性质 气孔结构 微观形貌 

分 类 号：TQ520.62[化学工程—煤化学工程]