Title:
BURNER STRUCTURE FOR BLOWING PULVERIZED COAL FUEL INTO BLAST FURNACE
Document Type and Number:
Japanese Patent JP2004012104
Kind Code:
A
Abstract:
To facilitate drawing of a cylindrical burner and stabilize circumferential balance of raw fuel by elliptically forming a cross sectional shape of a protecting tube or spherically forming a check valve or the like.
The burner structure for blowing pulverized coal fuel into the blast furnace is composed so that the cross sectional shape of the protecting tube 5 internally inserted by the cylindrical burner 4 is elliptically or rectangularly shaped, drawing out of the cylindrical burner 4 with a bent tip is facilitated, and the check valve 6 is spherically formed so it is not a hindrance during drawing out.
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Inventors:
KOTANI SHIGERU
OKU NORIAKI
YASHIRO HIDETOSHI
TATEWAKI MASABUMI
OKU NORIAKI
YASHIRO HIDETOSHI
TATEWAKI MASABUMI
Application Number:
JP2002170317A
Publication Date:
January 15, 2004
Filing Date:
June 11, 2002
Export Citation:
Assignee:
NISSHIN STEEL CO LTD
KYOSHIN SURFACING KK
KYOSHIN SURFACING KK
International Classes:
F23D1/00; C21B7/00; (IPC1-7): F23D1/00; C21B7/00
Attorney, Agent or Firm:
Michiteru Soga
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Taizo Shiraishi
Nakamura Rei
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Taizo Shiraishi
Nakamura Rei