JPS6470606A - Method of low nox combustion of fine powder coal and combustion burner - Google Patents
Method of low nox combustion of fine powder coal and combustion burnerInfo
- Publication number
- JPS6470606A JPS6470606A JP22565587A JP22565587A JPS6470606A JP S6470606 A JPS6470606 A JP S6470606A JP 22565587 A JP22565587 A JP 22565587A JP 22565587 A JP22565587 A JP 22565587A JP S6470606 A JPS6470606 A JP S6470606A
- Authority
- JP
- Japan
- Prior art keywords
- air
- mixture
- flow
- combustion
- fine powder
- 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.)
- Pending
Links
Abstract
PURPOSE:To reduce an amount of NOx as a whole by a method wherein a part of secondary air and third air is positively mixed with mixture just after injection of both air and the remaining air is gradually mixed with the mixture. CONSTITUTION:Mixture injection flow of fine powder coal and primary air 15 is injected from a central part as a direct advancing flow. Secondary air 16 is fed from a secondary air nozzle 12 as a circulating flow so as to cross with an outside part of the mixture injection flow 15, and third air 17 is fed from a third air nozzle 13 as a circulating flow toward an advancing direction from outside spaced apart from the secondary air 16. In this case, each of the amounts of air is controlled to have a relation of a flow rate of third air > a flow rate of secondary air > a flow rate of primary air. 30-50% of the secondary air 16 and the third air 17 is mixed with the mixture 15 just after injection and then the remaining air is gradually mixed with the mixture.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22565587A JPS6470606A (en) | 1987-09-09 | 1987-09-09 | Method of low nox combustion of fine powder coal and combustion burner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22565587A JPS6470606A (en) | 1987-09-09 | 1987-09-09 | Method of low nox combustion of fine powder coal and combustion burner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6470606A true JPS6470606A (en) | 1989-03-16 |
Family
ID=16832696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22565587A Pending JPS6470606A (en) | 1987-09-09 | 1987-09-09 | Method of low nox combustion of fine powder coal and combustion burner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6470606A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE39425E1 (en) * | 1993-07-15 | 2006-12-12 | Maxon Corporation | Oxygen-fuel burner with integral staged oxygen supply |
US8210219B2 (en) | 2009-08-03 | 2012-07-03 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire with tread having crown rib and middle ribs |
-
1987
- 1987-09-09 JP JP22565587A patent/JPS6470606A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE39425E1 (en) * | 1993-07-15 | 2006-12-12 | Maxon Corporation | Oxygen-fuel burner with integral staged oxygen supply |
US8210219B2 (en) | 2009-08-03 | 2012-07-03 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire with tread having crown rib and middle ribs |
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