无焦煤炼焦时惰性物对焦炭微观强度的影响  

The influence of inert material on coke microscopic intensity in the process of coking without coking coal

作　　者：王忠乐[1] 王为为[1] 黄龙[1] 叶友贵 崔平[1] 

机构地区：[1]安徽工业大学化学与化工学院,马鞍山243002

出　　处：《燃料与化工》2014年第5期1-4,共4页Fuel & Chemical Processes

基　　金：国家自然科学基金项目(21176002)

摘　　要：在无焦煤的炼焦条件下,将徐州气煤和枣庄肥煤两种煤混合,以此混煤为基础煤料,添加不同粒度的焦粉、瘦煤、无烟煤进行坩埚焦炼焦实验,对所炼制的坩埚焦进行焦炭光学组织、焦炭显微强度和结构强度分析测试。结果表明,添加惰性物使焦炭的各向异性指数(OTI)增大,I+Mf+FF减小;3种惰性物中,添加焦粉对提高焦炭显微强度和结构强度效果最好;惰性物的粒度越小,提高焦炭质量效果越明显。Crucible coking experiment without coking coal is carried out by taking the mixture of Xuzhou gas coal and Zaozhuang fat coal as basic coal material,and adding coke fines,lean coal and anthracite coal of various sizes. The coke optical texture,coke micro strength index and structure strength index of obtained crucible coke are measured and tested. The result shows that with the addi-tion of inert materials,OTI of coke increases,while I ＋ Mf ＋ FF decreases. Among the three inert ma-terials,addition of coke fines is the most effective way to improve coke micro strength and structure strength. The smaller the inert material size,the better the coke quality.

关 键 词：惰性物 炼焦 焦炭质量 

分 类 号：TQ522[化学工程—煤化学工程]