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以某钢厂的八流连铸中间包为研究对象,采用数值模拟方法对不同控流结构中间包内钢液流场进行了研究,并通过水模型实验和工业生产进行验证。模拟结果表明:ASF中间包内的挡墙和湍流器能够明显改善钢液的流动状态和温度分布,加上双坝后效果更佳,钢液的流动存在4个环流区,不仅增加了钢液的混合程度,而且中间包内钢液的温度分布更均匀且低温区较少。水模试验表明在空包中加入湍流器和挡墙能明显改善各流流动特性的一致性,且在其基础上加入双坝能进一步改善钢液的流动特性,与数值模拟结果一致,此外,工业生产也完全达到预期效果。
Taking the eight-strand continuous casting tundish of a steel mill as the research object, the numerical simulation method was used to study the flow field of molten steel in the tundish of different flow control structures. The flow field was verified by water model experiment and industrial production. The simulation results show that the retaining wall and turbulator in the ASF tundish can obviously improve the flow state and temperature distribution of the molten steel. After the double dam is more effective, there are four circulation areas in the flow of the molten steel, which not only increases the liquid steel Of the degree of mixing, and the tundish temperature distribution of molten steel more uniform and low temperature zone less. Water model tests show that the addition of turbulators and retaining walls in the empty package can significantly improve the consistency of the flow characteristics of the flow and adding the double dam on the basis of the model can further improve the flow characteristics of the molten steel in accordance with the numerical simulation results. Industrial production also fully achieved the desired results.