Patent ID: 9551531
Date: 2017-01-24
CPC Classifications: C21C,F27D,Y02P

Claim:
1. A preheating device having a bottom, side walls and a ceiling, together defining a channel, as well as transportation means, extending in an axial direction of said channel from an entry port of the channel to an exit port of said channel, for transferring scrap (S) from said entry port to said exit port, wherein at least one radiation burner is arranged between said entry port and said exit port in such a way that radiant heat released by said radiation burner being directed towards the scrap (S) onto said transportation means, wherein the preheating device further comprises a duct, by which fumes, generated by the at least one radiation burner, are collected and transferred to a position distinct from that of the at least one radiation burner and then fed into the channel as a heating gas and guided over or into the scrap (S) before the scrap is fed into a furnace (E).