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采用数值模拟的方法,建立了描述某厂结晶器内钢液流动的数学模型;用有限体积法求解,研究了结晶器内的钢液流动行为,详细分析了结晶器浸入式水口(SEN)插入深度、侧孔倾角和拉速对结晶器内钢液流场的影响。得出了适合该厂连铸工艺条件的浸入式水口形式和拉坯速度,即水口合理的出口倾角应为向下15°左右;在水口结构一定条件下,水口插入深度140～170mm比较适宜;合理的拉速应控制在1.4～2.0m/min。
A mathematical model describing the flow of molten steel in a mold of a plant was established by means of numerical simulation. The finite volume method was used to study the flow behavior of molten steel in the mold. The effects of SEN insertion Effect of depth, side hole inclination and casting speed on the flow field of molten steel in mold. The suitable submerged entry nozzle and casting speed for the continuous casting process of the plant was obtained, that is, the proper exit inclination of the nozzle should be about 15 ° downwards; under the certain conditions of the nozzle structure, the insertion depth of the nozzle is 140 ~ 170mm; Reasonable pulling speed should be controlled at 1.4 ~ 2.0m / min.