工程科学学报2016，Vol.38Issue(z1)：14-19,6.DOI:10.13374/j.issn2095-9389.2016.s1.003
210 tRH精炼过程的混匀特性
Mixing characteristics of 210 tRH refining process
摘要
Abstract
To understand the characteristic of mixing in 210t RH vacuum refining process, a 1﹕4 water model was established to investigate the effects of gas flow rate, snorkel immersion depth ( SID) , vacuum chamber pressure and number of blockage blowing air holeon the RH mixing time. The results show that the RH mixing time presents a decreasing trend with the increase of gas blowing andthe decrease of the vacuum chamber pressure. Furthermore, the mixing time first decreases then increases with the increaseof the snorkel immersion depth (SID)and the number of blockage blowing air hole, and the optimum SID is 480mm. Using particle imageve-locimetryto measure the two-dimensional flow field of RH ladle in refining process, andthen compared to the results of numerical simu-lation, the resultsshowthat the fluid movement in the ladle is mainly the circulation flow from down-leg to up-leg andthe back-flow a-round the down-leg. In addition,the inactive region is mainly located in the range of SID under the steel-slag interface.关键词
RH精炼/混匀时间/物理模拟/粒子成像测速/流场Key words
RH process/mixing time/physical simulation/particle image velocimetry/flow field分类
冶金工业引用本文复制引用
刘洋,崔衡,李东侠..210 tRH精炼过程的混匀特性[J].工程科学学报,2016,38(z1):14-19,6.基金项目
北京高校“青年英才计划”资助项目(YETP0411) （YETP0411）
中央高校基本科研业务费专项资金资助项目(FRF-TP-14-102A2) （FRF-TP-14-102A2）
