高效长寿高炉的冷却结构及冷却强度刍议  

Discussion on the Cooling Structure and Cooling Intensity of Efficient Long Campaign BF

作　　者：汤清华[1] 史志苗 TANG Qinghua;SHI Zhimiao(Angang Steel Company Limited;Jiangyin Xingcheng Special Steel Works Co.,Ltd.)

机构地区：[1]鞍钢股份有限公司 [2]江阴兴澄特种钢铁有限公司

出　　处：《炼铁》2022年第1期23-27,共5页Ironmaking

摘　　要：重点就高炉设计、改造、生产操作及维护中,经常遇到一些有关高炉冷却工艺和结构上的问题,如冷却壁冷却比表面积、冷却结构、冷却水质、热负荷、水速等进行了讨论。认为:应改善冷却壁结构,提高冷却比表面积达1.2以上;炉缸宜采用卧式弧形光面冷却壁;新设计高炉时应适当缩小炉腹角,己投产高炉则应适当调整风口小套的长度,以达到缩小操作炉型炉腹角的目的;采用闭路循环冷却工艺的高炉,冷却壁内的水流速度应达到2.5±0.2m/s。Some issues related to BF cooling process and structure which are always encountered in BF design,revamping,production operation and maintenance are discussed.These issues include specific surface area of cooling stave,cooling structure,cooling water quality,heat load,water flowrate,etc.It is believed that the cooling stave structure should be optimized to increase the specific surface area of cooling stave to 1.2 or above;horizontal arc plain cooling stave should be installed for the hearth.For the new furnace,the bosh angle should be appropriately reduced;for the existing blast furnace,the tuyere body length should be adjusted so as to reduce the bosh angle of the operating furnace profile;and for the furnace adopting closed-loop cooling,the water flow rate in the staves should be 2.5±0.2m/s.

关 键 词：高炉 冷却设备 冷却比表面积 冷却水 冷却强度 

分 类 号：TF573[冶金工程—钢铁冶金]