Title:
AUXILIARY BURNER FOR ELECTRIC FURNACE
Document Type and Number:
WIPO Patent Application WO/2018/021249
Kind Code:
A1
Abstract:
Provided is an auxiliary burner for electric furnace that keeps a uniform, high heating effect on iron scrap by appropriately and efficiently burning solid fuel with gas fuel. This auxiliary burner for electric furnace 100 has a structure wherein a solid fuel injection pipe 1, a gas fuel injection pipe 2, and a combustible gas injection pipe 3 are concentrically disposed in order from the center. A combustible gas channel 30 for the combustible gas injection pipe 3 is provided with a plurality of swirl vanes 4 for swirling the combustible gas. The angle θ of the swirl vane 4 to the burner axis is 5° to 45° inclusive.
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Inventors:
OZAWA SUMITO (JP)
TSUTSUMI KOICHI (JP)
MIWA YOSHIHIRO (JP)
SUMI IKUHIRO (JP)
TOMOZAWA KENICHI (JP)
ITO TAKAYUKI (JP)
TSUTSUMI KOICHI (JP)
MIWA YOSHIHIRO (JP)
SUMI IKUHIRO (JP)
TOMOZAWA KENICHI (JP)
ITO TAKAYUKI (JP)
Application Number:
PCT/JP2017/026716
Publication Date:
February 01, 2018
Filing Date:
July 24, 2017
Export Citation:
Assignee:
JFE STEEL CORP (JP)
CHUGAI RO KOGYO KAISHA LTD (JP)
CHUGAI RO KOGYO KAISHA LTD (JP)
International Classes:
F23D17/00; F23D14/22
Domestic Patent References:
| WO2015136609A1 | 2015-09-17 |
Foreign References:
| JPS6312923B2 | 1988-03-23 | |||
| US20120129111A1 | 2012-05-24 | |||
| JP2005283029A | 2005-10-13 | |||
| JPH0712314A | 1995-01-17 | |||
| JP2004100967A | 2004-04-02 | |||
| JPS5719506A | 1982-02-01 | |||
| JPS5751204U | 1982-03-24 | |||
| JPS59134728U | 1984-09-08 | |||
| JP2009532661A | 2009-09-10 | |||
| US5203692A | 1993-04-20 | |||
| JP2014185784A | 2014-10-02 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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