METHOD FOR MANUFACTURING INGOT IRON BY USING ELECTRIC FURNACE PROVIDED WITH IMAGING APPARATUS

WIPO Patent Application WO/2022/172770

A1

To reliably supply scrap iron into a melting chamber.　Provided is a method for manufacturing ingot iron by using an electric furnace comprising a preheating chamber, a melting chamber, an extruder provided for the preheating chamber, and an imaging apparatus for observing the inside of the melting chamber, the method comprising an extruding step for supplying scrap iron, which is preheated in the preheating chamber, into the melting chamber by the extruder, and a melting step for obtaining ingot iron by melting the scrap iron, which is supplied into the melting chamber, with arc heat. The extruding step controls a movement of the extruder and/or a time interval for moving the extruder on the basis of visual information obtained from the imaging apparatus.

JPS6148444	USE OF STEEL SLAG
JPH11302718	METHOD FOR BLOWING REFINING AGENT FOR ELECTRIC FURNACE AND APPARATUS THEREFOR
WO/2023/105541	ELECTRIC ARC FURNACE FOR MELTING METAL MATERIAL AND STEEL PLANT COMPRISING SAID ELECTRIC ARC FURNACE

TSUTSUMI KOICHI (JP)
MIWA YOSHIHIRO (JP)
NAGASHIMA SHOHEI (JP)
OKUYAMA GORO (JP)
ENDO KATSUTOSHI (JP)
KAWANAMI SHUNICHI (JP)

PCT/JP2022/003174

August 18, 2022

January 27, 2022

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JFE STEEL CORP (JP)

C21C5/52; F27B3/18; F27D17/00

JP2002121611A	2002-04-26
CN109517941A	2019-03-26
JP2001074377A	2001-03-23
JPH10292990A	1998-11-04
JP2018070926A	2018-05-10
JP2011069606A	2011-04-07

SUGIMURA Kenji (JP)

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