| 摘要 |
<p>Method to process fumes performed on fumes discharged directly from furnaces (10) through the fourth hole (11) or from loading baskets (13) used to pre-heat the scrap which is to be loaded into the furnace, the fumes (17) afterwards being sent to the purification plants (24) and to the chimney, the fumes (17) leaving the furnace (10) and/or the loading baskets (13) through a cooled conduit (14) being made to pass through at least a first chamber where they are subjected to a post-combustion process before being sent to the purification systems (24) and the chimney, the fumes entering the first expansion chamber (15a) expanding in correspondence with a wider section (215a) at the entrance of the expansion chamber (15a) and being deflected by a deflector element (18) arranged substantially at the centre of the wider section (215a), the expansion and deflection causing the fumes to decelerate from a speed at the inlet of around 20 50 metres per second to a speed at the outlet of around 5 12 metres per second, the fumes then being subjected to a post-combustion process by means of at least one burner (20) arranged on the walls of the first expansion chamber (15a) and below the deflector element (18). Device to realize the method as above.</p> |
