Title:
電気炉用助燃バーナー
Document Type and Number:
Japanese Patent JP6705838
Kind Code:
B2
Abstract:
Provided is an auxiliary burner for an electric furnace that has high iron scrap heating effect by appropriately and efficiently burning a solid fuel such as coal together with a gas fuel. An auxiliary burner for an electric furnace 100 has a structure in which a solid fuel injection tube 1, a gas fuel injection tube 2, and a combustion-supporting gas injection tube 3 are coaxially arranged in order from the center. The front end of the solid fuel injection tube 1 is located inside the gas fuel injection tube 2 to form, between the front end of the solid fuel injection tube 1 and the front end of the gas fuel injection tube 2, a first space 4 for solid fuel and gas fuel premixing surrounded by the front end portion of the gas fuel injection tube 2.
Inventors:
Yoshihiro Miwa
Koichi Tsutsumi
Junji Ozawa
Reina Sumi
Koichi Tsutsumi
Junji Ozawa
Reina Sumi
Application Number:
JP2017564755A
Publication Date:
June 03, 2020
Filing Date:
September 27, 2017
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
F23C1/12; F23D17/00
Foreign References:
| WO2016120943A1 |
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Keisuke Kawahara