鞍钢鲅鱼圈4038 m^(3)高炉高比例使用中块焦炭生产实践  

Production Practice of High Proportion Medium-sized Coke by 4038 m^(3) Blast Furnace in Bayuquan of Ansteel

作　　者：吴官印 姜彦冰[2] 蒋益[2] 李伟伟 何冲 龚继兵[2] 赵华 张智勇 WU Guanyin;JIANG Yanbing;JIANG Yi;LI Weiwei;HE Chong;GONG Jibing;ZHAO Hua;ZHANG Zhiyong(Ansteel Iron&Steel Research Institutes,Anshan 114009,Liaoning,China;Bayuquan Branch of Angang Steel Co.,Ltd.,Yingkou 115007,Liaoning,China)

机构地区：[1]鞍钢集团钢铁研究院,辽宁鞍山114009 [2]鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁营口115007

出　　处：《鞍钢技术》2022年第1期40-44,共5页Angang Technology

摘　　要：针对鞍钢股份有限公司鲅鱼圈钢铁分公司4038 m^(3)高炉高比例使用中块焦炭后出现的风量萎缩、顺行变差,尤其是高炉休送风恢复过程中炉缸活跃性差、煤气流中心通道打不开、频繁崩滑料现象,提出采取合理匹配上下部调剂、组织好炉前渣铁排放、小焦布料制度以及改善休风料结构等措施。实践后,高炉实现了中块焦比为90 kg/t情况下的长期稳定顺行,休送风恢复未出现超时现象,适应了高比例使用中块焦炭的生产。In allusion to these problems that the reduction of blast volume and worse smoothworking of the blast furnace(BF)occurred in terms of the operation of the 4038 m^(3) BF by using high proportion medium-sized coke in Bayuquan Branch of Angang Steel Co.,Ltd.,especially such phenomena as low activity in furnace hearth,being not opened of the central passage for gas flow and frequent slumping of fuels and materials also occurred during the recovery process of blowing-in of the BF after damping down,such measures as making reasonable adjustments for matching from top to bottom,organizing the discharging of slag and iron well before steel-making,carrying out the burden distribution system with small coke,improving the compositions in charges of blowing down and guaranteeing the smooth passing of the central passage for gas flow were proposed.After these measures were taken in production practice,the BF were still in smooth running state even under the condition of using medium-sized coke ratio of 90 kg/t and the time for air supply recovery did not exceed the time limit after damping down.So the BF gradually fitted in with the operating state with high proportion medium-sized coke and long-term stable smooth running of the BF achieved.

关 键 词：高炉 中块焦碳 罐焦 中心通道 

分 类 号：TF54[冶金工程—钢铁冶金]