CN209458953U - A kind of fluidized bed garbage combustion boiler - Google Patents
A kind of fluidized bed garbage combustion boiler Download PDFInfo
- Publication number
- CN209458953U CN209458953U CN201920097724.0U CN201920097724U CN209458953U CN 209458953 U CN209458953 U CN 209458953U CN 201920097724 U CN201920097724 U CN 201920097724U CN 209458953 U CN209458953 U CN 209458953U
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- fluidized bed
- vertical shaft
- deduster
- combustion boiler
- burner hearth
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Abstract
This application provides a kind of fluidized bed garbage combustion boilers, including the first vertical shaft and the second vertical shaft, burner hearth is formed in first vertical shaft, the burner hearth is arranged with combustion chamber, high temperature superheater is disposed with along flow of flue gas direction in second vertical shaft, low temperature superheater, multiple economizers and multiple air preheaters, an exhanst gas outlet is provided on the downside of second vertical shaft, the exhanst gas outlet is connected to a deduster, the deduster is connected to a desulfurizing tower, it is provided on connecting pipe between the deduster and the desulfurizing tower for by the first air-introduced machine and the second air-introduced machine for draining into desulfurizing tower along it in deduster, garbage feeding mouth is additionally provided on the side wall of the burner hearth, a batcher is provided at the garbage feeding mouth, connection between the deduster and the desulfurizing tower A recirculation conduit is also communicated on pipeline, the recirculation conduit is connected with the batcher.
Description
Technical field
This application involves a kind of fluidized bed garbage combustion boilers.
Background technique
Boiler exhaust heat loss is the largest heat loss item in power plant's operation at present, and high fume temperature causes thermal loss
Waste；Pollutant in flue gas causes environmental pollution and greenhouse gases effect.And garbage incinerating power plant enters stokehold refuse moisture
Height burns difficulty, needs to add coal-fired combustion-supporting, and resource and cost is caused to waste；When incinerator uses Air Fluidized bed material simultaneously,
Because air oxygen content (21%) is high, temperature is low, causes furnace outlet discharged nitrous oxides value high, needs to increase ammonium hydroxide and carry out denitration,
Cause cost and environmental pollution.
Summary of the invention
The application technical problems to be solved are to provide a kind of fluidized bed garbage combustion boiler.
In order to solve the above-mentioned technical problem, this application provides a kind of fluidized bed garbage combustion boiler, the fluidized beds
Garbage burning boiler includes the first vertical shaft and the second vertical shaft, forms burner hearth in first vertical shaft, is arranged under the burner hearth
Combuster, second vertical shaft is interior to be disposed with high temperature superheater, low temperature superheater, multiple provinces along flow of flue gas direction
Coal device and multiple air preheaters are provided with an exhanst gas outlet, the exhanst gas outlet connection on the downside of second vertical shaft
To a deduster, the deduster is connected to a desulfurizing tower, the communicating pipe between the deduster and the desulfurizing tower
The first air-introduced machine and the second air-introduced machine for the flue gas in deduster to be drained into desulfurizing tower are provided on road, the burner hearth
Be additionally provided with garbage feeding mouth on side wall, be provided with a batcher at the garbage feeding mouth, the deduster with it is described
Desulfurizing tower between connecting pipe on be also communicated with a recirculation conduit, the recirculation conduit and the batcher phase
Connection, the recirculation conduit are equipped with one for the flue gas that deduster is discharged to be delivered to following in the batcher again
Ring blower.
Preferably, loop branch pipe again and again is also communicated on the recirculation conduit, the recycling branch pipe is connected to
The combustion chamber.
Preferably, be additionally provided with a coal spread wind entrance on the side wall of the burner hearth, the recirculation conduit also with institute
The coal spread wind entrance stated is connected.
Preferably, a cyclone separator is additionally provided between first vertical shaft and second vertical shaft, it is described
The lower end of cyclone separator is provided with a material returning device, and a return port, the returning charge are additionally provided on the side wall of the burner hearth
Mouth is connected with the material returning device, and the upper end of the burner hearth is connected with the upper end of the cyclone separator.
Preferably, the fluidized bed garbage combustion boiler further includes a material return blower, the material return blower with it is described
Material returning device and combustion chamber.
Preferably, the fluidized bed garbage combustion boiler further includes the First air being connected with the air preheater
Machine and secondary air fan.
Preferably, the primary air fan also passes through the coal spread wind entrance that a connecting pipe is connected to the burner hearth.
Preferably, the side wall of second vertical shaft passes through a pipeline and the combustion chamber.
Preferably, the desulfurizing tower is also connected to a flue gas discharge opening.
A kind of fluidized bed garbage combustion boiler of the application will be discharged fume by boiler induced-draft fan using gas recirculating fan
Outlet is recycled to waste incineration furnace body side, is divided into two strands, one send to stokehold feed system, contains 50% moisture to stokehold is entered
Rubbish preheated, dispersed, dried, cause refuse moisture to be precipitated, it is inflammable, reduce coal consumption；A kind of fluidized bed rubbish of the application
Rubbish burning boiler gives one flue gas to primary air system, makees bed surface fluidized wind, using flue gas hypoxemia (11%), high temperature principle,
Furnace outlet amount of nitrogen oxides is reduced, ammonia volume is saved.To cost is reduced after transformation, economizes on resources, improves environment, safety
It is advantageous.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of fluidized bed garbage combustion boiler.
Wherein: 10, the first vertical shaft；1, burner hearth；11, garbage feeding mouth；12, coal spread wind entrance；13, return port；14, it burns
Room；2, cyclone separator；21, material returning device；30, the second vertical shaft；31, high temperature superheater；32, low temperature superheater；33, economizer；
34, air preheater；35, exhanst gas outlet；36, primary air fan；37, secondary air fan；4, deduster；51, the first air-introduced machine；52,
Second air-introduced machine；6, desulfurizing tower；7, flue gas discharge opening；81, recirculation blower；82, recirculation conduit；83, batcher；84, again
Loop branch pipe；9, material return blower.
Specific embodiment
The application is described further in the following with reference to the drawings and specific embodiments, so that those skilled in the art can be with
It more fully understands the application and can be practiced, but illustrated embodiment is not as the restriction to the application.
As shown in Figure 1, this application provides a kind of fluidized bed garbage combustion boiler, the fluidized bed garbage combustion boiler
Including the first vertical shaft 10 and the second vertical shaft 30, burner hearth 1 is formed in first vertical shaft 10, the burner hearth 1 is arranged with combustion
It burns room 14, is disposed with high temperature superheater 31, low temperature superheater 32, more along flow of flue gas direction in described second vertical shaft 30
A economizer 33 and multiple air preheaters 34, the downside of second vertical shaft 30 is provided with an exhanst gas outlet 35, described
Exhanst gas outlet 35 is connected to a deduster 4, and the deduster 4 is connected to a desulfurizing tower 6, the deduster 4 and described
The first air-introduced machine 51 for the flue gas in deduster 4 to be drained into desulfurizing tower 6 is provided on connecting pipe between desulfurizing tower 6
And second air-introduced machine 52, garbage feeding mouth 11 is additionally provided on the side wall of the burner hearth 1, is set at the garbage feeding mouth 11
It is equipped with a batcher 83, is also communicated with a recirculation pipe on the connecting pipe between the deduster 4 and the desulfurizing tower 6
Road 82, the recirculation conduit 82 are connected with the batcher 83, and the recirculation conduit 82 is equipped with one and is used for
The recirculation blower 81 flue gas that deduster 4 is discharged being delivered in the batcher 83.On the recirculation conduit 82
Loop branch pipe 84 again and again are also communicated with, the recycling branch pipe 84 is connected to the combustion chamber 14.The burner hearth 1
A coal spread wind entrance 12 is additionally provided on side wall, the recirculation conduit 82 is also connected with the coal spread wind entrance 12.
A cyclone separator 2, the cyclone separator 2 are additionally provided between first vertical shaft 10 and second vertical shaft 30
Lower end be provided with a material returning device 21, be additionally provided with a return port 13 on the side wall of the burner hearth 1, the return port 13 with
The material returning device 21 is connected, and the upper end of the burner hearth 1 is connected with the upper end of the cyclone separator 2.Described
Fluidized bed garbage combustion boiler further includes a material return blower 9, the material return blower 9 and the material returning device 21 and combustion chamber 14
It is connected.The fluidized bed garbage combustion boiler further include the primary air fan 36 being connected with the air preheater 34 and
Secondary air fan 37.The primary air fan 36 is also connected to the coal spread wind entrance 12 of the burner hearth 1 by a connecting pipe.Institute
The side wall for the second vertical shaft 30 stated is connected to by a pipeline with the combustion chamber 14.The desulfurizing tower 6 is also connected to a cigarette
Gas outlet 7.
The fluidized bed garbage combustion boiler of the application by former air-introduced machine export increase flue gas waste heat recovery recycle blower and
150 DEG C of flue gases are delivered to boiler side by pipeline, transform former chain mat machine feeding system as sealing screw dry batcher 83, right
Feeding system rubbish is dried, is preheated；All it transform original material toggling wind, group coal wind as flue gas ventilation again, while to rubbish
Rubbish is dried and preheats, and reduces the influence to 1 temperature of burner hearth, improves drying garbage degree, saves coal-fired.After transformation, can be normal
Rubbish under temperature is heated to 80 DEG C, and 50% refuse moisture is reduced to 47%, burns 350 tons of rubbish meters daily according to every furnace
It calculates, rubbish, which is converted to raw coal, can save 15 tons, and 2 refuse furnaces save 30 tons of fire coal daily, every year according to 300 days runing time meters
It calculates, whole year can save 9000 tons coal-fired.11% flue gas of oxygen content is delivered to burner hearth 1 by the fluidized bed garbage combustion boiler of the application
Fluidized wind side reduces air usage amount, meets NO as bed materials of fluidized bed boiler fluidized windxThe mechanism of low oxygen combustion, makes furnace
Thorax 1 exports NOxDischarge amount greatly reduces, and former burner hearth 1 exports NOxIt is emitted into 200mg/m3, discharge value is in 100mg/ after transformation
m3, it is annual to save about 100 tons with ammonia vol, decline denitration with ammonia vol, operating cost reduces, environmentally friendly parameter qualified discharge.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the application, the protection model of the application
It encloses without being limited thereto.Those skilled in the art made equivalent substitute or transformation on the basis of the application, in the application
Protection scope within.The protection scope of the application is subject to claims.
Claims (9)
1. a kind of fluidized bed garbage combustion boiler, the fluidized bed garbage combustion boiler includes the first vertical shaft and the second vertical shaft,
Burner hearth is formed in first vertical shaft, the burner hearth is arranged with combustion chamber, and second vertical shaft is interior along flow of flue gas
Direction is disposed with high temperature superheater, low temperature superheater, multiple economizers and multiple air preheaters, second vertical shaft
Downside be provided with an exhanst gas outlet, the exhanst gas outlet is connected to a deduster, and the deduster is connected to a desulfurization
Tower is provided on the connecting pipe between the deduster and the desulfurizing tower de- for draining into the flue gas in deduster
The first air-introduced machine and the second air-introduced machine of sulphur tower,
It is characterized in that, being additionally provided with garbage feeding mouth on the side wall of the burner hearth, it is provided at the garbage feeding mouth
One batcher is also communicated with a recirculation conduit on the connecting pipe between the deduster and the desulfurizing tower, described
Recirculation conduit be connected with the batcher, the recirculation conduit is equipped with one for cigarette that deduster is discharged
Gas is delivered to the recirculation blower in the batcher.
2. a kind of fluidized bed garbage combustion boiler as described in claim 1, which is characterized in that on the recirculation conduit also
It is communicated with loop branch pipe again and again, the recycling branch pipe is connected to the combustion chamber.
3. a kind of fluidized bed garbage combustion boiler as claimed in claim 2, which is characterized in that on the side wall of the burner hearth also
It is provided with a coal spread wind entrance, the recirculation conduit is also connected with the coal spread wind entrance.
4. a kind of fluidized bed garbage combustion boiler as claimed in claim 3, which is characterized in that first vertical shaft with it is described
The second vertical shaft between be additionally provided with a cyclone separator, the lower end of the cyclone separator is provided with a material returning device, described
Burner hearth side wall on be additionally provided with a return port, the return port is connected with the material returning device, the burner hearth
Upper end is connected with the upper end of the cyclone separator.
5. a kind of fluidized bed garbage combustion boiler as claimed in claim 4, which is characterized in that the fluidized bed garbage combustion
Boiler further includes a material return blower, the material return blower and the material returning device and combustion chamber.
6. a kind of fluidized bed garbage combustion boiler as claimed in claim 5, which is characterized in that the fluidized bed garbage combustion
Boiler further includes the primary air fan and secondary air fan being connected with the air preheater.
7. a kind of fluidized bed garbage combustion boiler as claimed in claim 6, which is characterized in that the primary air fan also passes through
One connecting pipe is connected to the coal spread wind entrance of the burner hearth.
8. a kind of fluidized bed garbage combustion boiler as claimed in claim 7, which is characterized in that the side wall of second vertical shaft
Pass through a pipeline and the combustion chamber.
9. a kind of fluidized bed garbage combustion boiler as claimed in claim 8, which is characterized in that the desulfurizing tower is also connected to
One flue gas discharge opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920097724.0U CN209458953U (en) | 2019-01-21 | 2019-01-21 | A kind of fluidized bed garbage combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920097724.0U CN209458953U (en) | 2019-01-21 | 2019-01-21 | A kind of fluidized bed garbage combustion boiler |
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| Publication Number | Publication Date |
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| CN209458953U true CN209458953U (en) | 2019-10-01 |
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| CN201920097724.0U Active CN209458953U (en) | 2019-01-21 | 2019-01-21 | A kind of fluidized bed garbage combustion boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637465A (en) * | 2020-05-29 | 2020-09-08 | 东华工程科技股份有限公司 | Treatment system and method for combustible industrial solid waste |
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2019
- 2019-01-21 CN CN201920097724.0U patent/CN209458953U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637465A (en) * | 2020-05-29 | 2020-09-08 | 东华工程科技股份有限公司 | Treatment system and method for combustible industrial solid waste |
| CN111637465B (en) * | 2020-05-29 | 2022-01-11 | 东华工程科技股份有限公司 | Treatment system and method for combustible industrial solid waste |
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