RH浸渍管高效长寿的研究  

STUDY ON HIGH EFFICIENCY AND LONG LIFE OF RH IMPREGNATED TUBE

作　　者：么敬文 刘志远 王重君 王飞 郭文斌 郑永顺 Yao Jingwen;Liu Zhiyuan;Wang Chongjun;Wang Fei;Guo Wenbin;Zheng Yongshun(HBIS Group Tangsteel Medium and Heavy Plate Co.,Ltd.,Tangshan 063000,Hebei;School of Metallurgy,Northeast University,Shenyang 110819,Liaoning)

机构地区：[1]河钢集团唐钢中厚板材有限公司,河北唐山063000 [2]东北大学冶金学院,辽宁沈阳110819

出　　处：《河北冶金》2022年第11期50-54,共5页Hebei Metallurgy

摘　　要：RH精炼炉是冶炼优质钢及纯净钢的主要设备,其在线使用寿命主要受浸渍管的影响。分析了影响浸渍管主体材质镁铬砖侵蚀速率的因素,并进行了一系列改进。通过控制氩气流量、缩短RH真空处理时间、提升RH进站钢水洁净度、优化喷补工艺及设备、改进烘烤制度等措施,使RH浸渍管的使用寿命大幅提升,由平均143炉延长到175炉,最高寿命达228炉,达到了国内较高水平。RH Refining Furnace is the main equipment for smelting high-quality steel and pure steel.Its on-line service life is mainly affected by impregnated tubes.The factors affecting the corrosion rate of magnesia-chrome brick,the main material of impregnated tube,are analyzed,and a series of improvements are made.By controlling argon flow rate,shortening RH vacuum treatment time,improving cleanliness of molten steel at RH Station,optimizing spray repair process and equipment,improving baking system,etc.,the service life of RH impregnated tube has been extended from 143 furnace to 175 furnaces,and the maximum service life is 228 furnaces,reaching a high level in China.

关 键 词：RH 浸渍管 长寿 侵蚀速率 氩气流量 喷补 烘烤 

分 类 号：TF769.1[冶金工程—钢铁冶金]