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试验利用PXI连铸综合水力学试验平台,采用1∶2的中间包水模型研究坝堰和多孔挡墙对某钢厂180mm×240mm小方坯六流连铸中间包中流动的影响,通过分析不同方案中间包的相关区域的流场特性和停留时间分布曲线(RTD曲线)来得出相关试验结论。试验结果表明,无坝堰和多孔挡墙的中间包内注流区的流体的流动均匀性不好,同时响应时间(7s)和峰值时间(224s)均比较短;优化后的中间包内的流体的流动特性得到较大程度改善,响应时间和峰值时间分别延长99和159s,死区体积减小了45.71%,活塞流体积从12.03%增大到25.47%。
Experimental PXI continuous casting hydraulic test platform, the use of 1: 2 tundish water model of dam and porous retaining wall of a steel mill 180mm × 240mm billet six-strand continuous casting tundish flow through the analysis The correlation test results are obtained from the flow field characteristics and dwell time distribution curves (RTD curves) of the relevant areas of different tundish programs. The experimental results show that the flow uniformity of the fluid in the tundish without tundish and the porous retaining wall is not good, and the response time (7s) and peak time (224s) are both short. The optimized tundish Fluid flow characteristics were greatly improved, the response time and peak time were extended 99 and 159s, the dead volume decreased by 45.71%, the piston flow volume increased from 12.03% to 25.47%.