Invention Grant
- Patent Title: Method for making steel in an electric arc furnace and electric arc furnace
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Application No.: US15108323Application Date: 2014-12-26
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Publication No.: US10337077B2Publication Date: 2019-07-02
- Inventor: Genrikh Alekseevich Dorofeev , Pavel Rudol'fovich Yantovskiy , Konstantin Gennadievich Smirnov , Igor' Ivanovich Yastrebov , Aleksandr Anatol'evich Protopopov , Gennadiy Alekseevich Zinyagin
- Applicant: Genrikh Alekseevich Dorofeev
- Agent John Alumit
- Priority: RU2013158488 20131230
- International Application: PCT/RU2014/000996 WO 20141226
- International Announcement: WO2015/102520 WO 20150709
- Main IPC: C21C5/52
- IPC: C21C5/52 ; C21C5/56 ; F27D1/00 ; F27D3/00 ; F27D3/16 ; F27B3/08 ; F27B3/18 ; F27D1/02 ; F27B14/06 ; F27B14/14 ; F27D11/10

Abstract:
A method of producing steel by charging a furnace with scrap metal and agglomerated oxy-carbon material into a workspace of a furnace, to reduce specific electricity consumption when melting. Increasing the iron output quantity by inputting electric energy, fuel, a carburizer, a flux and gaseous oxygen, using electric arc melting with decarburization of a metal bath, and releasing metal and slag from the furnace. Prior to melting, a portion of the material is loaded with a first portion of the metal charge into the central zone of the furnace, and the remaining material into the melted charge during melting 0.5-10 kg/min per 1 megavolt-ampere of electric arc transformer power. The oxy-carbon material size is between 5 and 80 millimeters.
Public/Granted literature
- US20160333430A1 METHOD FOR MAKING STEEL IN AN ELECTRIC ARC FURNACE AND ELECTRIC ARC FURNACE Public/Granted day:2016-11-17
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