Title:
電気炉用助燃バーナー
Document Type and Number:
Japanese Patent JP6580710
Kind Code:
B2
Abstract:
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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Inventors:
Junji Ozawa
Koichi Tsutsumi
Yoshihiro Miwa
Reina Sumi
Kenichi Tomozawa
Takayuki Ito
Koichi Tsutsumi
Yoshihiro Miwa
Reina Sumi
Kenichi Tomozawa
Takayuki Ito
Application Number:
JP2017559626A
Publication Date:
September 25, 2019
Filing Date:
July 24, 2017
Export Citation:
Assignee:
jfe Steel Corporation
Chugai Furnace Industry Co., Ltd.
Chugai Furnace Industry Co., Ltd.
International Classes:
F23D17/00
Domestic Patent References:
| JP6312923B2 | ||||
| JP62225816A | ||||
| JP7012314A | ||||
| JP10009524A | ||||
| JP11083016A | ||||
| JP54128910A | ||||
| JP38011481Y1 |
Foreign References:
| US20120129111 |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Keisuke Kawahara
Mitsutsugu Sugimura
Keisuke Kawahara