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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11041621 B1

PDFFull Text
Date of Patent:
Jun. 22, 2021

Filed:

Jul. 24, 2017

Auxiliary burner for electric furnace

Applicants:

Jfe Steel Corporation, Chiyoda-ku Tokyo, JP;

Chugai RO Co., Ltd., Osakashi Osaka, JP;

Inventors:

Sumito Ozawa, Tokyo, JP;

Koichi Tsutsumi, Tokyo, JP;

Yoshihiro Miwa, Tokyo, JP;

Ikuhiro Sumi, Tokyo, JP;

Kenichi Tomozawa, Osaka, JP;

Takayuki Ito, Osaka, JP;

Assignees:

JFE STEEL CORPORATION, Tokyo, JP;

CHUGAIRO CO., LTD., Osaka, JP;

Attorney:

Kenja IP Law PC

Primary Examiner:

Daniel E Namay

Int. Cl.
CPC ...
F23D 17/00 (2006.01); F23C 1/12 (2006.01); F23D 14/24 (2006.01); F27B 3/08 (2006.01); F27D 3/16 (2006.01); F27D 7/02 (2006.01); F23D 14/22 (2006.01);
U.S. Cl.
CPC ...
F23D 17/005 (2013.01); F23C 1/12 (2013.01); F23D 14/22 (2013.01); F23D 14/24 (2013.01); F23D 17/00 (2013.01); F27B 3/08 (2013.01); F27D 3/16 (2013.01); F27D 7/02 (2013.01);
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 burnerfor an electric furnace comprises a solid fuel injection tube, a gas fuel injection tube, and a combustion-supporting gas injection tubein the stated order from the center side, all arranged coaxially, and is characterized in that: a combustion-supporting gas flow pathof the 10 combustion-supporting gas injection tubeis provided with a plurality of swirl vanesfor swirling the combustion-supporting gas, and the angle θ formed between the swirl vanesand the burner axis is 5° or more and 45° or less.

Find Patent Forward Citations

Ozawa, Sumito. (2021). Auxiliary burner for electric furnace (U.S. Patent No. 11041621). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11041621

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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