| 摘要 |
<p>A converter waste gas recovering system includes a hood (3) mounted above a converter (1), and a skirt (2) interposed between the hood and a furnace mouth of the converter for elevatory movement by hydraulic means (15) to provide a seal between the furnace mouth and the hood. Adjustments of the skirt can be automatically effected in accordance with the condition of the skull deposits (17) on the furnace mouth to bring the minimum value of the gap between the upper end of the skull deposits and the skirt into agreement with a value set beforehand. The system includes a plurality of industrial T.V. cameras (10) for monitoring the deposition of the skull on the furnace mouth; control means (11, 12, 13, 19) for sensing a deviation of the value of the gap between the skirt (2) and the skull deposits monitored by the industrial television cameras (10) from the minimum pre-set value and for generating a signal corresponding to the deviation; and hydraulic servo means (14) actuated by the signal to actuate the hydraulic means (15) for operating the skirt (2). <IMAGE></p> |
