TH131EX - Steel making process - Google Patents

Abstract

Residues obtained from metal smelting And contains oxides And the volatile non-metallic metals or their compounds are put in a convection furnace mixed with a hard carbon reducing agent and are directly reduced to dihydrate, mostly porous iron, while most of the metals The non-ferrous will evaporate to the solid. The products obtained from the rotary furnace are sifted with a 3 to 10 mm sieve, depending on the quality and properties of the substances put in the furnace for Most of the non-magnetic material is placed in fine parts, the coarse part is subjected to an electrolysis process, the fine part is electromagnetically separated and the magnetic substance is taken. Through electrolytic removal process, the non-magnetic part is mixed with the mixture to Put into the rotary furnace by rolling or pelletizing method.

Claims (1)

1. the process of producing steel in which substances containing iron oxides are directly reduced. And violent iron melted by electrolysis It is characterized by the following steps: (a) The residues obtained from the smelting of metals and containing oxides and non-ferrous metals. Which is volatile, or their compounds are placed in a rotary furnace. Mixed with a solid carbon recycle agent And will be recalculated until it is mostly porous iron While most of the non-ferrous metals are evaporated, (b) solids, including the perforated iron obtained by the revolving furnace, are sifted with a