摘要
建立了钢厂250 t RH真空精炼装置1/4的水模型,研究浸渍管内径(520～750 mm)、驱动气体流量(1 000～3 000 L/min)、浸渍管浸入深度(525～800 mm)和真空室压力(0～25 kPa)等参数对RH循环流量的影响。结果表明,随驱动气体流量、浸渍管浸入深度增加、浸渍管内径增大以及真空室压力减少,RH钢水循环流量增加;为获得较大流量,浸渍管浸入深度应≥560 mm,真空室液面高度应≥200 mm。得出循环流量的回归方程,通过对钢厂250 t RH设备工艺参数作相应调整后,RH装置的生产效率明显提高。
The water model of 1/4 scale of a 250 t RH vacuum refining unit at steel works has been established to study the effect of parameters including snorkel inside diameter （520 - 750 mm ） , lifting gas flow rate （ 1 000 - 3 000 L/min）, immersion depth of snorkel （525 -800 mm） and vacuum chamber pressure （0 -25 kPa） on RH liquid circulation flow rate. Results show that with increasing lifting gas flow rate and immersion depth of snorkel, enlarging inside diameter of snorkel, and decreasing vacuum chamber pressure, the RH liquid circulation flow rate increases ; in order to get larger flow rate, the immersion depth of snorkel should be ≥ 560 mm and the height of liquid surface in vacuum chamber should be ≥200 mm. The regression equation for circulation flow rate of liquid is obtained, and by adjusting corresponding process parameters for the 250 t RH unit at steel works, the production efficiency obviously increases.
出处
《特殊钢》
北大核心
2011年第3期9-11,共3页
Special Steel
关键词
RH精炼
循环流量
水模型
真空室压力
回归方程
RH Refining, Circulation How Rate, Water Model, Vacuum Chamber Pressure, Regression Equation
