| 摘要 |
<p>Spheroidal granules or balls are prepared from molten metallurgical slags and scorias by pouring the molten material onto an uncooled rotary cylinder, after possible passage on an inclined feed plate or table, without any cooling being assured by liquid or gaseous means other than the ambient atmosphere between pouring of the material and the reception area where hard spherical granules pile up and can be sorted by screening. The spheroidal granules can be formed from all types of slags, especially basic, phosphated or not, steel mill slags.</p> |
