JPS6470609A - Low nitrogen oxide burner for fine powder coal - Google Patents
Low nitrogen oxide burner for fine powder coalInfo
- Publication number
- JPS6470609A JPS6470609A JP22775787A JP22775787A JPS6470609A JP S6470609 A JPS6470609 A JP S6470609A JP 22775787 A JP22775787 A JP 22775787A JP 22775787 A JP22775787 A JP 22775787A JP S6470609 A JPS6470609 A JP S6470609A
- Authority
- JP
- Japan
- Prior art keywords
- flow passage
- fine powder
- secondary air
- powder coal
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To provide a high efficiency and a low nitrogen oxidation by a method wherein a burner is composed of a fuel nozzle, a polygonal secondary air nozzle and a cylindrical third air nozzle, and the secondary and third airs are injected as a circulating flow. CONSTITUTION:A fine powder coal flow passage 11 is formed of a cylindrical unit, a secondary air passage 12 is formed in a polygonal shape so as to enclose the fine powder coal flow passage 11 and its secondary air injection port is of a polygonal reducer 15, respectively. The third air flow passage 13 is formed of a cylindrical shape so as to enclose the secondary air flow passage 12. A spacer 18 for delaying mixing the secondary air and the third air is arranged between the secondary air flow passage 12 and the third air flow passage 13 so as to elongate the outer pipe of the third air flow passage 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22775787A JPH086901B2 (en) | 1987-09-11 | 1987-09-11 | Pulverized coal low nitrogen oxide burner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22775787A JPH086901B2 (en) | 1987-09-11 | 1987-09-11 | Pulverized coal low nitrogen oxide burner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6470609A true JPS6470609A (en) | 1989-03-16 |
JPH086901B2 JPH086901B2 (en) | 1996-01-29 |
Family
ID=16865897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22775787A Expired - Lifetime JPH086901B2 (en) | 1987-09-11 | 1987-09-11 | Pulverized coal low nitrogen oxide burner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH086901B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011030501A1 (en) * | 2009-09-11 | 2011-03-17 | バブコック日立株式会社 | Pulverized coal boiler |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102382599B1 (en) * | 2020-11-13 | 2022-04-05 | 한국생산기술연구원 | Ultra-low NOx combustion apparatus and combustion system comprising the same |
-
1987
- 1987-09-11 JP JP22775787A patent/JPH086901B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011030501A1 (en) * | 2009-09-11 | 2011-03-17 | バブコック日立株式会社 | Pulverized coal boiler |
US8714096B2 (en) | 2009-09-11 | 2014-05-06 | Babcock-Hitachi K.K. | Pulverized coal boiler |
Also Published As
Publication number | Publication date |
---|---|
JPH086901B2 (en) | 1996-01-29 |
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