Abstract：The flow fields of the beam blank mold with double SENs and single SEN were studied by water-model experiment, and the designed parameters of double SENs were optimized by numerical simulation. The results showed that the flow field of double SENs was more symmetrical and molten steel level fluctuation was optimum, and the optimal parameters of double SENs were obtained as below: the diameter of bottom port approximately 23mm, the diameter of side ventro-port approximately 14mm, the diameter of side wing-port approximately 10mm, and side port angle about 60. The technical practice indicated that the liquid steel flow of double SENs was more suitable for the process of the beam blank mold in No.3 steelmaking and rolling plant of Maanshan Iron and Steel Co.. The rate of sticking breakout was descended by 32.8%, the rate of waste product was decreased by 20%, the heat number of sequential casting was increased by about 3 times.
2009, Vol. 44 
