JPS57187506A - Method of fluidized combustion - Google Patents
Method of fluidized combustionInfo
- Publication number
- JPS57187506A JPS57187506A JP7156381A JP7156381A JPS57187506A JP S57187506 A JPS57187506 A JP S57187506A JP 7156381 A JP7156381 A JP 7156381A JP 7156381 A JP7156381 A JP 7156381A JP S57187506 A JPS57187506 A JP S57187506A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- coal
- ash
- fed
- nox
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/002—Fluidised bed combustion apparatus for pulverulent solid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
PURPOSE:To make pre-treatment of pulverizing coal into small size unnecessary, to decrease NOx content, and to increase combustion efficiency of a fluidized furnace, by fluidize-burning coal of low quality level as it is of a diameter of coarse grain without pulverizing it, and by utilizing the lime ash itself produced as a result of combustion, as a fluidizing medium. CONSTITUTION:Unpulverized coal being fed into a hopper 1 is fed into a furnace 3 from a coal feed pipe 6. Combustion air is fed into the lower part of a furnace 3. The ash produced in a furnace is discharged to the outside of a furnace from an overflow pipe 14, being collected in an ash pond 15. A part of ash in an ash pond 15 is conveyed to a solid-gas separator 19 from a lift part 17 by a conveying air 18, being fed back into a furnace 3 through a recycle pipe 20. The ash fed back is utilized as a fluidizing medium in a furnace 3. With such an arrangement, a pre-treatment to pulverize coal is unnecessary, and the rate of generation of NOx is decreased, because the coal of larger diameter is more advantageous than the one of smaller diameter, as measures to counter NOx.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7156381A JPS57187506A (en) | 1981-05-12 | 1981-05-12 | Method of fluidized combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7156381A JPS57187506A (en) | 1981-05-12 | 1981-05-12 | Method of fluidized combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57187506A true JPS57187506A (en) | 1982-11-18 |
Family
ID=13464300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7156381A Pending JPS57187506A (en) | 1981-05-12 | 1981-05-12 | Method of fluidized combustion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57187506A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101050340B1 (en) | 2006-01-19 | 2011-07-19 | 올림푸스 메디칼 시스템즈 가부시키가이샤 | In-Subject Medical System |
| EP1181487B1 (en) * | 2000-03-24 | 2018-10-03 | Wisconsin Electric Power Company | Coal combustion products recovery process |
-
1981
- 1981-05-12 JP JP7156381A patent/JPS57187506A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1181487B1 (en) * | 2000-03-24 | 2018-10-03 | Wisconsin Electric Power Company | Coal combustion products recovery process |
| KR101050340B1 (en) | 2006-01-19 | 2011-07-19 | 올림푸스 메디칼 시스템즈 가부시키가이샤 | In-Subject Medical System |
| US8731637B2 (en) | 2006-01-19 | 2014-05-20 | Olympus Medical Systems Corp. | Intra-subject medical system, method of operating body-insertable apparatus and operative treatment |
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