| 摘要 |
PURPOSE:To estimate the flowing condition of the steel bath in a converter by measuring and recording the micro oscillation in the furnace body according to gaseous stirring with a displacement meter having high sensitivity and performing frequency analysis continuously by way of converter blowing. CONSTITUTION:A body 1 of a converter is installed on a stand 2, and a display disc 3 for the rotating angle of the converter is mounted on the stand 2. Displacement meters 4, 5 for measuring oscillation are mounted to the stand 2 and the disc 3 so as to enable the measurement of the respective displacements in the axial direction of trunnions and the direction intersecting orthogonally therewith. The outputs of the meters 4, 5 are amplified respectively with an amplifier 6, and are conducted to a frequency analyzer 7 which calculates the coherence in the frequency of the flow of the steel bath and the absolute value and phase difference of the displacements in the two directions after Fourier analysis. The results of the calculation are displayed momentarily as the flowing pattern of the steel bath on a CRT (cathode ray tube) 9 via a computer arithmethic device 8. |
