YANG Wen-yuan1, WANG Li-li2, XIAO Zun-hu3, WANG Ming-lin1, LIU Lu-chang4
1. Central Iron and Steel Research Institute, Beijing 100081, Chian 2. Anshan Research Institute of Thermo-Energy,Anshan 114000, Liaoning, China 3. Lianyuan Iron and Steel Group Ltd., Loudi 417009, Hunan, China 4. Wuhan Iron and Steel Group Co., Wuhan 430083, Hubei, China
Abstract：Oxygen pressure of work in BOF is decided by nozzle Mach number. Oxygen jet penetration depth of the bath [(L)] and the bath depth [(L0)] has an appropriate ratio [(L/L0)]. About 1/3 steel plant’s working oxygen pressure is unreasonable in China. According to theoretical analysis and practical experience, working oxygen pressure is usually higher （5%～15%） than stagnant pressure according to Mach. Therefore, shockwave losses of flow jet can be reduced, penetration depth of jet is deeper and nozzle rapid melting caused by negative pressure at nozzle outlet can be prevented. Pressure losses [(Δp)] caused by oxygen passing through pipeline should be understand during nozzle designing. Field measurement method is comparatively reliable to get the pressure loss.
收稿日期: 2013-11-02
出版日期: 2014-11-02
引用本文:
杨文远， 王丽丽， 肖尊湖， 王明林， 刘路长. 转炉炼钢氧气压力的选择[J]. 钢铁, 2014, 49(11): 36-41.
YANG Wen-yuan, WANG Li-li, XIAO Zun-hu, WANG Ming-lin, LIU Lu-chang. Oxygen Pressure Selection in BOF. Iron and Steel, 2014, 49(11): 36-41.
2014, Vol. 49 
