Auxiliary burner for electric furnace

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United States of America Patent

PATENT NO 11041621
APP PUB NO 20190271465A1
SERIAL NO

16320206

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An auxiliary burner for an electric furnace capable of increasing and homogenizing the heating effect of iron scrap by suitably and efficiently burning solid fuel along with gas fuel. Auxiliary burner 100 for an electric furnace comprises a solid fuel injection tube 1, a gas fuel injection tube 2, and a combustion-supporting gas injection tube 3 in the stated order from the center side, all arranged coaxially, and is characterized in that: a combustion-supporting gas flow path 30 of the 10 combustion-supporting gas injection tube 3 is provided with a plurality of swirl vanes 4 for swirling the combustion-supporting gas, and the angle θ formed between the swirl vanes 4 and the burner axis is 5° or more and 45° or less.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATIONTOKYO 100-0011
CHUGAI RO CO LTD3-6-1 HIRANOMACHI CHUO-KU OSAKA-SHI OSAKA 5410046 ?5410046

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Takayuki Osaka, JP 453 5146
Miwa, Yoshihiro Tokyo, JP 20 25
Ozawa, Sumito Tokyo, JP 9 28
Sumi, Ikuhiro Tokyo, JP 10 6
Tomozawa, Kenichi Osaka, JP 3 6
Tsutsumi, Koichi Tokyo, JP 31 78

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