| 摘要 |
<p>The present invention relates to a device for the dynamic control, in a metallurgical oven, of a lance (9) for blowing pressurized gas containing oxygen, or solids, said device comprising contactless measurement means situated outside the oven for estimating the distance (D) between one end (8') of the lance (9) and a target formed by the solid scrap (5) situated opposite said end (8'), characterized in that said means comprise a radiation source (14) emitting an incident beam (16) in the direction of said target (5) and a detector (15) where a beam (17) reflected by the target (5) is captured, such that the incident beam (16) and the reflected beam (17) both pass into the inner section of a pipe situated along the axis of said lance (9). ® KIPO & WIPO 2009</p> |
