Title:
DETOXICATING METHOD OF CHLOROFLUOROCARBON BY KILN FOR MANUFACTURING CEMENT
Document Type and Number:
Japanese Patent JP3698690
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method efficiently detoxicating chlorofluorocarbon using a cylindrical burner of a kiln for manufacturing cement.
SOLUTION: In a burning end surface of the cylindrical burner, powdered fuel is injected into the kiln through a fuel injection port annularly formed about the central point, primary air is injected into the kiln in substantially the same direction of the fuel injection flow through a plurality of outer primary air injection ports disposed outside the annular fuel injection port and in an annular region concentric to it and through a plurality of inner primary air injection ports disposed inside the annular fuel injection port and in an annular region concentric to it, thereby forming a combustion flame of the powdered fuel. Chlorofluorocarbon is mixed into the primary air flow flowing through at least one inner primary air injection port, they are injected, and the chlorofluorocarbon is burned in the combustion flame and detoxicated.
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Inventors:
Yoshiyama Iro
Kazunori Ikezawa
Kazuki Inazu
Kazunori Ikezawa
Kazuki Inazu
Application Number:
JP2002208754A
Publication Date:
September 21, 2005
Filing Date:
July 17, 2002
Export Citation:
Assignee:
Sumitomo Osaka Cement Co., Ltd.
International Classes:
F23G7/00; C07B35/06; C07C19/10; F23D17/00; F23G7/06; F27B7/34; F27D17/00; (IPC1-7): F23G7/06; C07B35/06; C07C19/10; F23D17/00; F23G7/00
Domestic Patent References:
| JP2001012705A | ||||
| JP11006612A |
Attorney, Agent or Firm:
Takashi Ishida
Kazuyuki Nishidate
Jun Tsuruta
Masaya Nishiyama
Higuchi Souji
Kazuyuki Nishidate
Jun Tsuruta
Masaya Nishiyama
Higuchi Souji