JPS5642004A - Fluidized layer type boiler - Google Patents
Fluidized layer type boilerInfo
- Publication number
- JPS5642004A JPS5642004A JP11784579A JP11784579A JPS5642004A JP S5642004 A JPS5642004 A JP S5642004A JP 11784579 A JP11784579 A JP 11784579A JP 11784579 A JP11784579 A JP 11784579A JP S5642004 A JPS5642004 A JP S5642004A
- Authority
- JP
- Japan
- Prior art keywords
- ash
- fluidized
- fine particle
- layer
- coal
- 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
- 239000002956 ash Substances 0.000 abstract 7
- 239000010419 fine particle Substances 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000003245 coal Substances 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 2
- 239000000428 dust Substances 0.000 abstract 2
- 239000010802 sludge Substances 0.000 abstract 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000003134 recirculating effect Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
PURPOSE: To improve combustion efficiency in a fluidized boiler which uses as fuel low quality coal having high ash content by recirculating fine particle ashes contained in burnt ash whose unburned carbon content is high to the fluidized layer for recombustion.
CONSTITUTION: Coal-wash sludge 7 stored in hopper 6 is fed into boiler body 1 by a predetermined quantity through screw feeder 2 to form fluid layer 8 at the lower portion of the boiler body 1. The sludge 7 in the fluidized layer 8 is fluidized by air introduced through distributer 3 positioned under the fluid layer 8 and burned there. The burnt ash resulting from combustion is contained in exhaust gas 11 as scattering dust and introduced into cyclone collector 4 through smoke passage 10. Thus the cyclone collector 4 separates from the exhaust gas 11 scattering dust, which is divided by a grader 5 into fine particle ash 16 and rough particle ash 17. The fine particle ash 16 which contains relatively large amount of unburned carbon is supplied into the fluid layer 8 by air 13 through coal supply pipe 15 for recombustion.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11784579A JPS5642004A (en) | 1979-09-17 | 1979-09-17 | Fluidized layer type boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11784579A JPS5642004A (en) | 1979-09-17 | 1979-09-17 | Fluidized layer type boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5642004A true JPS5642004A (en) | 1981-04-20 |
Family
ID=14721688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11784579A Pending JPS5642004A (en) | 1979-09-17 | 1979-09-17 | Fluidized layer type boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5642004A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6153617U (en) * | 1984-09-10 | 1986-04-11 | ||
| JPS61205709A (en) * | 1985-03-08 | 1986-09-11 | Kawasaki Heavy Ind Ltd | Re-burning method for unburnt residual in fluidized bed burning boiler |
| JPS62190316A (en) * | 1986-12-11 | 1987-08-20 | Kawasaki Heavy Ind Ltd | Combustion method for coal |
| JPH0494060U (en) * | 1990-12-28 | 1992-08-14 | ||
| JPH062812A (en) * | 1992-06-19 | 1994-01-11 | Ebara Corp | Fluidized bed boiler facility having return ash classification device |
-
1979
- 1979-09-17 JP JP11784579A patent/JPS5642004A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6153617U (en) * | 1984-09-10 | 1986-04-11 | ||
| JPS61205709A (en) * | 1985-03-08 | 1986-09-11 | Kawasaki Heavy Ind Ltd | Re-burning method for unburnt residual in fluidized bed burning boiler |
| JPS62190316A (en) * | 1986-12-11 | 1987-08-20 | Kawasaki Heavy Ind Ltd | Combustion method for coal |
| JPH0494060U (en) * | 1990-12-28 | 1992-08-14 | ||
| JPH062812A (en) * | 1992-06-19 | 1994-01-11 | Ebara Corp | Fluidized bed boiler facility having return ash classification device |
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