| 摘要 |
<p>The invention relates to a method for cooling a mouth of a converter through which contents of the converter are discharged at high temperature. A cooling medium such as a combustible liquid of high temperature cracking characteristics is maintained in a storage zone and cooled. The cooled cooling medium is introduced in a first header zone maintained at a preselected temperature or pressure, and selectively admitted to a plurality of individually segmented zones, in conduits in the form of a serpentine pipe exposed to the high temperature and embedded within a refractory material. The zones are disposed in combination with the mouth and the refractory material lining the mouth such that the individually segmented zones may be cooled. Provision is made for expansion and contraction of the pipe within each segment independently of the refractory material lining the mouth and in heat exchange relationship therewith. A heated cooling medium is admitted to a second header zone from the individually segmented zones, the second header zone being maintained under a predetermined pressure. The heated cooling medium is introduced into the storage zone or a cooling zone for recycle of same.</p> |
