Blast furnace tapping flow measurement system, blast furnace tapping flow measurement method, and computer program

摘要

PROBLEM TO BE SOLVED: To successively grasp accurate mixing ratio of molten iron and molten slag flowing out from a molten iron tapping hole.;SOLUTION: A concentration histogram 42 is calculated from data of figures 41 in the molten iron stream 2 picked up with a CCD camera 5, and the concentration value P_M at the peak caused by the molten iron in the calculated concentration histogram 42, is calculated. Further, to the concentration value P_M at the peak caused by the molten iron, a constant based on the ratio of spectral emissivity in the molten iron and the molten slag is multiplied and the concentration value P_S at the peak caused by molten slag is obtained. Then, the obtained concentration values P_M, P_S are used, and to the concentration distribution 43 caused by the molten iron and the concentration distribution 44 caused by the molten slag, both Gaussian functions G_M, G_S are fit. Further, the areas S_M, S_S of the Gaussian functions G_M, G_S obtained by fitting, are obtained and the weight ratio α of the molten iron is obtained and shown from the areas S_M, S_S of the Gaussian functions G_M, G_S.;COPYRIGHT: (C)2007,JPO&INPIT