CN2277484Y - Heating and steam generating fiuidized bed furnace - Google Patents
Heating and steam generating fiuidized bed furnace Download PDFInfo
- Publication number
- CN2277484Y CN2277484Y CN 97212591 CN97212591U CN2277484Y CN 2277484 Y CN2277484 Y CN 2277484Y CN 97212591 CN97212591 CN 97212591 CN 97212591 U CN97212591 U CN 97212591U CN 2277484 Y CN2277484 Y CN 2277484Y
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- boiling
- heating
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- chamber
- steam
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Abstract
The utility model relates to a coal burning boiling boiler used for producing ammonium phosphate and compound fertilizer, which comprises a boiling combustion chamber 1, a U-shaped burnout chamber 2 and a hot smoke gas outlet 19. The front segment 3 of the U-shaped burnout chamber 2 is provided with a steam boiler composed of a steam dome 4 and a convection bank 5, the U-shaped burnout chamber 2 is provided with two flues which are connected in parallel and can communicate the front segment and the back segment of the U-shaped burnout chamber 2, and a flue 6 is provided with a high temperature butterfly valve 8.
Description
The utility model is relevant with the combustion apparatus that fluid bed is arranged, and is especially relevant with the coal-fired boiling boiler that is used for ammonium phosphate, production of compound fertilizer.
In ammonium phosphate and production of compound fertilizer, need to supply simultaneously hot flue gas and saturated vapor.At present domestic most of factories adopt coal to make fuel, be with chain fire-gate grate firing type water-tube boiler to produce steam with one, another grate firing type hot-blast stove is produced hot flue gas, this equipment has following three major defects: the one, and its performance of starting to exchange fire is bad, needs to use the higher bituminous coal of fugitive constituent normally to move; The 2nd, traveling-grate stoker is easy burn-out when shutdown of short term, and ammonium phosphate and production of compound fertilizer are difficult to the shutdown of short term of avoiding comparatively frequent; The 3rd, the burn-off rate of coal is low, and slag is under this operating mode, and phosphorus content is up to more than 20%.
It is one simple in structure that the purpose of this utility model provides, thermal efficiency height, and energy-conservation, long service life can be produced saturated vapor and hot flue gas simultaneously, and the adjustable heating and steam combined generating boiling boiler of the output of two kinds of gases.
The utility model is achieved in that
The utility model comprises Boiling Combustion chamber 1, U-shaped burning chamber 2, and hot exhanst gas outlet 19, the leading portion 3 of U-shaped burning chamber 2 are provided with the steam boiler of drum 4 and convection bank 5 formations.
The bottom of the utility model leading portion 3 has a flue 6 to communicate with the back segment 7 of U-shaped burning chamber 2, and the top of leading portion 3 communicates with back segment 7, and high temperature butterfly valve 8 is arranged on the flue 6.
The blast cap of Boiling Combustion chamber 1 arranges that density is 200-250/square metre, blast cap percent opening 〉=2.7%.
The utility model can be produced 350 °-500 ℃ hot flue gas and the saturated vapor of 0.8-1.27MPa simultaneously.No heat loss due to exhaust gas.Boiling Combustion is indoor not to have heating surface, in the stove accumulation of heat many, the start-stop stove consumption time is short, and is stable, energy-conservation, is specially adapted to the frequent operating mode of stopping of ammonium phosphate and production of compound fertilizer.The hot flue gas of being produced and the ratio of saturated vapor can be regulated, to satisfy the needs of hot flue gas and steam different proportion in ammonium phosphate and the production of compound fertilizer.Boiling Combustion chamber blast cap is arranged intensive, and amount of supplied air is more sufficient, and excess air coefficient can reach more than 1.5.Phosphorus content in cinder and the coal ash significantly reduces.
The utility model stable operation cycle is long, opens, blowing out is convenient, time-consuming few, it is easy to adjust to load, the output coupling of two kinds of products is easy to adjust, is easy to realize mechanization and automation mechanized operation, can burn various colms, pollution to environment is little, the overall thermal efficiency height, simple in structure, with low cost, floor space is little, reduced investment.
Following is accompanying drawing of the present utility model:
Fig. 1 is the utility model front view.
Fig. 2 is the utility model vertical view.
Following is embodiment of the present utility model:
There is coal elephant trunk 10 Boiling Combustion chamber 1, fire door 11, blast cap 12.Draught distributing box 13 is arranged, scum pipe 14 under the blast cap.Ash releasing tube 15 is arranged on the sidewall.Leading portion 3 tops of U-shaped burning chamber 2 are provided with drum 4, also are provided with drum 4 on the bottom support table 16, and convection bank 5 is communicated with two drums 4.There is partition wall 17 to be connected in the middle of the convection bank 5 with two drums 4.The leading portion 3 of U-shaped burning chamber 2, back segment 7 tops communicate, and the bottom communicates by the flue on the partition wall 6, and high temperature butterfly valve 8 is arranged on the flue 6.The ash bucket of going out 18 is arranged at U-shaped burning chamber bottom.
The coal grain enters the Boiling Combustion chamber by the elephant trunk on the preceding furnace wall, meets with the air that sprays via draught distributing box and blast cap aperture and carries out Boiling Combustion.850 ℃-950 ℃ the elevated temperature heat flue gas that burning produces enters the leading portion flue through top, Boiling Combustion chamber, and a part is carried out heat exchange with the convection bank that is arranged in the there, makes the steam in the pipe turn to steam, is defeated by the user after steamdrum compiles.
Middle temperature flue gas after the heat exchange enters the back segment flue.The high temperature butterfly valve of another part high-temperature flue gas through leading portion flue bottom directly enters the back segment flue to be mixed with warm flue gas in the preceding part.Regulate the aperture of high temperature butterfly valve, coal amount and these three factors of the air amount of blasting of Boiling Combustion chamber, can realize the steady working condition of hot flue gas output and the multiple different proportionings of steam production.
Because the hot flue gas of this machine is a kind of product, does not have flue gas loss, so the Boiling Combustion bed of this machine has adopted intensive blast cap to arrange, blast cap arranges that density is 250/m
2Blast cap percent opening 3% adopts bigger excess air coefficient (general boiling boiler is 1.1～1.2, and the utility model is more than 1.5), the burning of coal condition is greatly improved, so the utility model all significantly is better than common boiling boiler to the adaptability and the overall thermal efficiency of colm.
This machine is at the indoor heating surface of not arranging of Boiling Combustion, removed general boiling boiler boiling bed internal heating surface easily grind away (life-span has only 3～6 months), this weak link, accumulation of heat is more in the combustion chamber simultaneously, short-term start-stop car time consumption and energy consumption is few, so this machine is adapted to phosphorus ammonium and the more frequent this operating mode of production of compound fertilizer start-stop car especially.
Claims (3)
1, a kind of heating and steam combined generating boiling boiler is included in Boiling Combustion chamber (1), U-shaped burning chamber (2), and hot exhanst gas outlet (19) is characterized in that the leading portion (3) of U-shaped burning chamber (2) is provided with the steam boiler of drum (4) and convection bank (5) formation.
2, heating and steam combined generating boiling boiler according to claim 1, the bottom that it is characterized in that leading portion (3) has a flue (6) to communicate with the back segment (7) of U-shaped burning chamber (2), the top of leading portion (3) communicates with back segment (7), and high temperature butterfly valve (8) is arranged on the flue (6).
3, heating and steam combined generating boiling boiler according to claim 1 and 2 is characterized in that the blast cap of Boiling Combustion chamber (1) arranges that density is 200-250/square metre, blast cap percent opening 〉=2.7%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212591 CN2277484Y (en) | 1997-03-31 | 1997-03-31 | Heating and steam generating fiuidized bed furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212591 CN2277484Y (en) | 1997-03-31 | 1997-03-31 | Heating and steam generating fiuidized bed furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2277484Y true CN2277484Y (en) | 1998-04-01 |
Family
ID=33930665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97212591 Expired - Lifetime CN2277484Y (en) | 1997-03-31 | 1997-03-31 | Heating and steam generating fiuidized bed furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2277484Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148478A (en) * | 2013-03-07 | 2013-06-12 | 黄石市建材节能设备总厂 | Multi-hearth fluidized bed furnace |
-
1997
- 1997-03-31 CN CN 97212591 patent/CN2277484Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148478A (en) * | 2013-03-07 | 2013-06-12 | 黄石市建材节能设备总厂 | Multi-hearth fluidized bed furnace |
| CN103148478B (en) * | 2013-03-07 | 2015-01-21 | 黄石市建材节能设备总厂 | Multi-hearth fluidized bed furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |