底吹炉氧枪喷口形式对气泡形态及混合状况的影响  

Effect of Nozzle Type of Oxygen Lance on Bubble Morphology and Mixing Condition in Bottom Blown Furnace

作　　者：王辉 谭秋生 苏福永 WANG Hui;TAN Qiu-sheng;SU Fu-yong(Equipment Department,Qingdao Special Steel Co.,Ltd.,Qingdao 266409,Shandong,China;School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]青岛特殊钢铁有限公司装备部,山东青岛266409 [2]北京科技大学能源与环境工程学院,北京100083

出　　处：《有色金属（冶炼部分）》2020年第12期18-22,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2018YFB0605904)。

摘　　要：针对4种不同的氧枪喷口结构进行了冷态试验研究,采用高速相机获得了不同喷口下的炉内气泡形态,采用电导率法测试了不同喷口下炉内流体的混合状况。试验结果表明,在相同的气体流量下,不同的气体喷口时炉内气泡的形态十分相似,当采用结构最复杂的喷口时,炉内的混合状态是最好的,结构最简单的喷口混合效果最差,其最小响应时间较最复杂喷口的增加约11%,均混时间增加约4.7%。Four different nozzle structures of oxygen lance were studied by cold state experiment.Bubble morphology of different nozzle was obtained by high-speed camera,and mixing state of fluid in furnace under different nozzle was measured by conductivity method.The experimental results show that with the same gas flow rate,shape of bubbles in furnace is very similar with different gas nozzles.When nozzle with the most complex structure is used,mixing state in furnace is the best,and mixing effect of nozzle with the simplest structure is the worst.The minimum response time rises by about 11%and mixing time rises by 4.7%compared with the most complex nozzle.

关 键 词：底吹熔炼炉 氧枪喷口 冷态试验 

分 类 号：TF811[冶金工程—有色金属冶金]