Title:
AUXILIARY BURNER FOR ELECTRIC FURNACE
Document Type and Number:
WIPO Patent Application WO/2018/074166
Kind Code:
A1
Abstract:
Provided is an auxiliary burner for an electric furnace with which a high heating effect for iron scrap can be obtained by appropriately and efficiently burning solid fuel such as coal with gas fuel. This auxiliary burner (100) for an electric furnace is characterized by having a structure in which a solid fuel injection pipe (1), a gas fuel injection pipe (2), and a combustible gas injection pipe (3) are disposed coaxially in order from the center, and in that a first space (4) that is for premixing solid fuel and gas fuel and that is enclosed by the distal end portion of the gas fuel injection pipe (2) is formed between the distal end of the solid fuel injection pipe (1) and the distal end of the gas fuel injection pipe (2) by way of the distal end of the solid fuel injection pipe (1) being positioned inside the gas fuel injection pipe (2).
Inventors:
MIWA YOSHIHIRO (JP)
TSUTSUMI KOICHI (JP)
OZAWA SUMITO (JP)
SUMI IKUHIRO (JP)
TSUTSUMI KOICHI (JP)
OZAWA SUMITO (JP)
SUMI IKUHIRO (JP)
Application Number:
PCT/JP2017/035062
Publication Date:
April 26, 2018
Filing Date:
September 27, 2017
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
F23C1/12
Domestic Patent References:
| WO2016120943A1 | 2016-08-04 |
Foreign References:
| JP2008209081A | 2008-09-11 | |||
| GB2165633A | 1986-04-16 | |||
| JPH109524A | 1998-01-16 | |||
| JP2003004382A | 2003-01-08 | |||
| JP2012189311A | 2012-10-04 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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