Method of production of secondary steel based on scrap

Details Method of production of secondary steel based on scrap Method of production of secondary steel based on scrap

2011-03-22

2011-03-22

Wyszomierski, George (Department: 1733)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C075S550000

Reexamination Certificate

active

07909909

ABSTRACT:
With the production of the secondary steel based on scrap, wherein the scrap (10) is fed in a scrap preheater (2) through a charging device (1), is preheated there and, finally, is brought into a smelting unit (3) and is melted there with primary energy only, the process gases (19), which leave the smelting unit (3), are not used for directly preheating the scrap (10) but are rather used indirectly by heating a gaseous preheatable medium, e.g., air (18) or inert gas, so that energetic, fluidic, and spatial decoupling of preheating and melting and of post-combustion and preheating is achieved.

REFERENCES:
patent: 7717978 (2010-05-01), Meyn

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