摘要
RH精炼过程对钢水质量起着至关重要的作用,RH的混匀特性好坏直接影响着钢水的质量好坏、RH设备能否顺利运行以及二次精炼的效率高低。本文采用1:4的实验比例建立了水力模型,利用控制变量法,在RH水力模型上升管位置喷KCl(氯化钾)粉剂代替实际生产中的脱硫剂,研究吹气量、浸入管浸入深度以及真空度对粉剂混匀时间的影响。粉剂与钢液在RH精炼炉中混匀时间越短则精炼效果越好。本文实验结果表明,在一定范围内吹气量越大、浸入深度越大、真空度越大混匀时间越短。
The RH refining process plays a vital role in the quality of molten steel. The mixing characteristics of RH directly affect the quality of molten steel, whether the RH equipment can run smoothly and the efficiency of secondary refining.In this paper, the hydraulic model of 1:4 is established. Using the control variable method, KCl powder was sprayed in the RH riser position of the water model to replace the desulfurizer in the actual production. The effects of insufflation amount, the immersion depth of the dip tube and the vacuum degree on mixing time were studied. It is shown that the shorter the mixing time of the powder and liquid steel in the RH refining furnace, the better the refining effect. The larger the blowing amount in a certain range, the greater the immersion depth, and the greater the vacuum degree, the shorter the mixing time.
作者
张家伟
刘海啸
高守祺
韩东
张瑞东
ZHANG Jia-wei;LIU Hai-xiao;GAO Shou-qi;HAN Dong;ZHANG Rui-dong(Key Laboratory of Metallurgy Engineering,University of Science and Technology Liaoning,Anshan 114051,China)
出处
《真空》
CAS
2020年第5期52-56,共5页
Vacuum
基金
辽宁省自然科学基金2019-ZD-0269
辽宁科技大学2019年国家级大学生创新创业训练计划项目,201910146004。
关键词
RH
上升管
喷粉
水模
RH
riser
powder spray
water mold
