摘要
控制全氢罩式退火炉钢卷的加热时间,对提高生产效率,改善产品质量有重大意义。本文在宝钢生产条件下建立并验证了钢卷传热模型,然后以此为基础分析了钢卷的径向等效导热系数,钢卷外径、高度,炉内循环气体的流量、温度对钢卷加热时间的影响。研究表明,钢卷径向等效导热系数增加8W/(m℃)时,退火加热时间缩短3.3h;钢卷外径增加0.8m时,退火加热时间延长3.9h;钢卷高度增加0.6m时,退火加热时间延长5.9h;循环气体流量增加6000m3/h时,退火加热时间缩短了0.50h;循环气体温度提高40℃,退火加热时间缩短了2.8h。
Heating time control of steel coil in HPH furnace is important to the improvement of production efficiency and quality, This paper establish and verify a heat transfer model of coil on the basis of production condition in BaoSteel, then analysis the influence of radial equivalent thermal conductivity, radius and height of coil, flux and temperature of hydrogen on heating time, The study shows that heating time shortens 3.3h as the radial equivalent thermal conductivity of coil increases 8W/ （m℃） ; heating time prolongs 3.9h as the radius increases 0.8m; heating time prolongs 5.9h as the height increases 0.6m; heating time shortens 0.5h as the flux of hydrogen increases 6000m^3/ h; heating time shortens 2.8h as the temperature of hydrogen increase 40℃.
出处
《冶金能源》
北大核心
2005年第5期24-28,共5页
Energy For Metallurgical Industry
基金
安徽省教育厅自然科学基金重点项目:2003KJ014ZD
