Title:
電気炉用助燃バーナー
Document Type and Number:
Japanese Patent JP6580709
Kind Code:
B2
Abstract:
Provided is 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. This 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 flow path 30 of the combustion-supporting gas injection tube 3 is provided with a plurality of swirl vanes 4 for swirling the combustion-supporting gas, and a flow path 20 of the gas fuel injection tube 2 is provided with a plurality of swirl vanes 5 for swirling the gas fuel; and the angle θ1 of the swirl vanes 4 and the θ2 of the swirl vanes 5 satisfy the relationship θ1<θ2.
More Like This:
Inventors:
Koichi Tsutsumi
Yoshihiro Miwa
Junji Ozawa
Reina Sumi
Kenichi Tomozawa
Takayuki Ito
Yoshihiro Miwa
Junji Ozawa
Reina Sumi
Kenichi Tomozawa
Takayuki Ito
Application Number:
JP2017559625A
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 | ||||
| JP2012201887A | ||||
| JP2013221159A | ||||
| JP200477092A | ||||
| JP11325444A |
Foreign References:
| US20120129111 | ||||
| US20140004469 |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Keisuke Kawahara
Mitsutsugu Sugimura
Keisuke Kawahara