40kg焦炉制备型煤铁焦的实验研究  

Experiment on preparation of iron coke briquette in 40kg coke oven

作　　者：任伟[1] 李金莲[1] 张立国[1] 袁慧[1] 王再义[1] 

机构地区：[1]鞍钢股份有限公司技术中心,辽宁鞍山114021

出　　处：《中国冶金》2015年第4期41-44,共4页China Metallurgy

摘　　要：为探索铁矿粉配比和煤种对铁焦制备的影响,以40kg焦炉实验方式进行了现场混合煤和1/3焦煤的铁焦制备。研究表明:在1/3焦煤配比为50%~90%(质量分数)范围内,以1/3焦煤:铁矿粉为9∶1的效果最佳,M40为54.3%,M10为8.8%,金属化率可以达到60%左右,所得焦炭反应性CRI为42.5%,提高铁矿粉配比,则铁焦内部孔洞尺寸和数目增加,M40指标下降,M10指标上升,但CRI指标增加。In order to explore the influence of iron ore proportion and coal type on the preparation of iron coke briquette,an investigation on iron coke preparation with mixed coal and 1/3low quantity coal by 40 kg coke oven was carried out.The results show that when 1/3coking coal was in the range of 50%to 90%,iron coke with 10%iron ores and 90%coking coal was be the best M40 and M10 were 54.3%and 8.8%separately,and the metal rate of iron coke was about 60%,CRI index reached 42.5%.The pore size and number increased in iron coke with increasing of iron ore proportion,and the quantity index M40 and M10of iron coke deteriorated,whereas the CRI index improved.

关 键 词：1/3焦煤 铁焦 强度 

分 类 号：TQ522.1[化学工程—煤化学工程]