30t板坯连铸中间包结构优化研究  

Optimization Study on Configuration of 30 Tons Slab Continuous Casting Tundish

作　　者：宋建新[1,2] 韩建军[2] 王玉刚[2] 李士琦[2] 曹立国[2,3] 

机构地区：[1]新疆博湖苇业股份有限公司,新疆库尔勒841001 [2]北京科技大学,北京100083 [3]唐山港陆钢铁有限公司,河北遵化064200

出　　处：《山东冶金》2009年第3期29-31,共3页Shandong Metallurgy

摘　　要：采用水力学模拟实验方法,对唐山港陆钢铁有限公司的30t板坯连铸用中间包内部结构进行优化研究。以饱和氯化钾溶液为示踪剂测量停留时间,按L1(645)正交表设计实验方案。经方差分析和显著性检验,确定出最佳工况为:挡墙到湍流抑制器边缘距离为550mm,挡墙下口高度为100mm,挡坝高度为400mm,挡墙与挡坝间距为150mm。实验表明,若选用最优工况,中间包内钢液的平均停留时间可达812s,比现用工况增长16.5%;滞止时间增长12.6%,峰值时间增长40%,中间包的冶金效果将显著提高。The configuration of 30 Tons Slab Continuous Casting tundish in Ganglu Iron and Steel Co., Ltd was optimized by means of hydraulics simulation experiment. Saturated KCl solution was used as tracer to measure the residence time. According to L16（4^5） orthogonal table, the experimental scheme was arranged. By variance analysis and significance tests, the optimum scheme was gotten as follows： the spacing of retaining wall to turbulence inhibitor is 550 ram, the spacing of retaining wall to bottom is 100 mm, the height of retaining dam is 400 mm and the distance between the retaining wall and the retaining dam is 150 mm. The experimental results show that if the optimum scheme is adopted, the average residence time of molten steel in the tundish will be 812 s, which is increased by 16.5% compared with the current condition, the minimum residence time will be increased by 12.6% and the peak increased by 40%. Then the metallurgical effects will be significantly improved.

关 键 词：中间包 水力学模拟 正交实验 钢液 停留时间 

分 类 号：TF777.1[冶金工程—钢铁冶金]