CN217613996U - Dry desulfurization, denitrification and dust removal integrated device - Google Patents
Dry desulfurization, denitrification and dust removal integrated device Download PDFInfo
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- CN217613996U CN217613996U CN202220953879.1U CN202220953879U CN217613996U CN 217613996 U CN217613996 U CN 217613996U CN 202220953879 U CN202220953879 U CN 202220953879U CN 217613996 U CN217613996 U CN 217613996U
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- pipeline
- absorption tower
- dust remover
- carbide slag
- fixed intercommunication
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Abstract
The utility model relates to a urea production technical field, a dry process SOx/NOx control dust removal integrated device, it includes the absorption tower, the carbide slag storehouse, the dust remover, the desulfurization ash storehouse, the dust remover in advance, fixed intercommunication has the carbide slag pipeline between first feed end in absorption tower bottom and the carbide slag storehouse discharge end, fixed intercommunication has the dust removal pipeline between the end of giving vent to anger on absorption tower upper portion and the dust remover inlet end, fixed intercommunication has the flue gas pipeline between the end of giving vent to anger of absorption tower bottom inlet end and dust remover in advance, fixed intercommunication has the circulation ash pipeline between first discharge end in dust remover bottom and the absorption tower bottom second feed end, fixed intercommunication has outer ash discharge pipeline between dust remover bottom second discharge end and the desulfurization ash storehouse. The utility model discloses intercommunication induced air pipeline between carbide slag storehouse top and absorption tower has reduced exhaust fan's power consumption and maintenance work load, has reduced noise pollution and the discharge secondary pollution that causes the environment when the fan operation, has the characteristics of safety, laborsaving, simple and convenient, environmental protection.
Description
Technical Field
The utility model relates to a coal fired boiler flue gas purification technical field is a dry desulfurization denitration dust removal integrated device.
Background
At present, when the flue gas of a coal-fired boiler is subjected to desulfurization and denitrification by using a denitration desulfurizer and carbide slag, the carbide slag is conveyed into a carbide slag bin through a carbide slag conveying pipeline for storage, conveyed into a desulfurization and denitrification absorption tower through a conveying air chute, and is subjected to mixing reaction with the flue gas in the tower at a high mass transfer speed to remove acid gas in the flue gas. An exhaust fan is arranged at the top of the carbide slag bin to keep the system at a micro negative pressure and avoid dust leakage and unsmooth conveying. But because the carbide slag has the characteristics that firstly, the carbide slag contains certain moisture and secondly, the carbide slag can be deliquesced with carbon dioxide in the air to generate moisture. Due to the characteristics, the carbide slag contains a large amount of moisture, so that when the exhaust fan operates in winter every year due to severe cold weather, the impeller of the exhaust fan is frozen by the moisture in the carbide slag, the dynamic balance is damaged, the fan is greatly vibrated and cannot stably operate, the impeller needs to be cleaned by freezing every 3 days, the maintenance work is frequent, and the stable operation of the carbide slag bin is influenced.
Disclosure of Invention
The utility model provides a dry desulfurization denitration dust removal integrated device has overcome above-mentioned prior art not enough, and it can effectively solve the unable normal operating problem of carbide slag storehouse top exhaust fan that prior art exists.
The technical scheme of the utility model is realized through following measure: the utility model provides a dry desulfurization denitration dust removal integrated device, including the absorption tower, the carbide slag storehouse, the dust remover, the desulfurization ash storehouse, the dust remover in advance, fixed intercommunication has the carbide slag pipeline between first feed end in absorption tower bottom and the carbide slag storehouse discharge end, fixed intercommunication has the dust removal pipeline between the end of giving vent to anger in absorption tower upper portion and the dust remover inlet end, fixed intercommunication has the flue gas pipeline between the end of giving vent to anger in absorption tower bottom inlet end and the dust remover in advance, fixed intercommunication has the circulating ash pipeline between the first discharge end in dust remover bottom and the second feed end in absorption tower bottom, fixed intercommunication has outer ash discharge pipeline between dust remover bottom second discharge end and the desulfurization ash storehouse, carbide slag storehouse top and the fixed intercommunication in absorption tower upper portion have the induced air pipeline, the fixed intercommunication in carbide slag storehouse top has the exhaust pipe line, spare dust remover and exhaust fan by supreme fixed mounting down on the exhaust pipe line.
The following are further optimization or/and improvement on the technical scheme of the utility model:
the water inlet at the lower part of the absorption tower is fixedly communicated with a process water pipeline.
The upper part of the dust remover is fixedly communicated with a clean air pipeline, and a draught fan is fixedly arranged on the clean air pipeline.
And an electric heater and a butterfly valve are sequentially arranged on the induced air pipeline along the air flow direction.
And a bin pump is fixedly arranged on the outer ash discharge pipeline.
The utility model has the advantages of reasonable and compact structure, convenient to use, its fixed intercommunication induced air pipeline between carbide slag bin top and absorption tower has reduced exhaust fan's the rate of utilization, has reduced exhaust fan's power consumption and maintenance work load, has reduced noise pollution and the secondary pollution that export discharge caused to the environment when the fan moves, has the characteristics of safety, laborsaving, simple and convenient, environmental protection.
Drawings
The attached figure 1 is the process flow schematic diagram of the utility model.
The codes in the figures are respectively: the device comprises an absorption tower 1, a carbide slag bin 2, a dust remover 3, a desulfurization ash bin 4, a pre-dust remover 5, a carbide slag pipeline 6, a dust removal pipeline 7, a flue gas pipeline 8, a circulating ash pipeline 9, an outer ash discharge pipeline 10, an air inducing pipeline 11, an exhaust pipeline 12, a standby dust remover 13, an exhaust fan 14, a process water pipeline 15, a clean air pipeline 16, an induced draft fan 17, an electric heater 18, a butterfly valve 19 and a bin pump 20.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention will be further described with reference to the following examples and drawings:
example 1: as shown in the attached drawing 1, the integrated device for dry desulfurization, denitrification and dust removal comprises an absorption tower 1, a carbide slag bin 2, a dust remover 3, a desulfurization ash bin 4 and a pre-dust remover 5, wherein a carbide slag pipeline 6 is fixedly communicated between a first feeding end at the bottom of the absorption tower 1 and a discharging end of the carbide slag bin 2, a dust removal pipeline 7 is fixedly communicated between an air outlet end at the upper part of the absorption tower 1 and an air inlet end of the dust remover 3, a smoke pipe line 8 is fixedly communicated between an air inlet end at the bottom of the absorption tower 1 and an air outlet end of the pre-dust remover 5, a circulating ash pipeline 9 is fixedly communicated between a first discharging end at the bottom of the dust remover 3 and a second feeding end at the bottom of the absorption tower 1, an outer ash discharge pipeline 10 is fixedly communicated between a second discharging end at the bottom of the dust remover 3 and the desulfurization ash bin 4, an air inducing pipeline 11 is fixedly communicated between the top of the carbide slag bin 2 and the upper part of the absorption tower 1, an exhaust pipeline 12 is fixedly communicated with the top of the carbide slag bin 2, and a standby dust remover 13 and an exhaust fan 14 are fixedly installed on the exhaust pipeline 12 from bottom to top.
The utility model discloses well dust remover 3 is the sack cleaner.
The dry desulfurization, denitrification and dust removal integrated device can be further optimized or/and improved according to actual needs:
example 2: as shown in the attached figure 1, a process water pipeline 15 is fixedly communicated with a water inlet at the lower part of the absorption tower 1.
Example 3: as shown in the attached figure 1, the upper part of the dust remover 3 is fixedly communicated with a clean air pipeline 16, and an induced draft fan 17 is fixedly arranged on the clean air pipeline 16.
Example 4: as shown in fig. 1, an electric heater 18 and a butterfly valve 19 are sequentially installed on the induced air pipeline 11 along the air flow direction.
Example 5: as shown in fig. 1, a bin pump 20 is fixedly mounted on the outer ash discharge line 10.
The utility model discloses an integration SOx/NOx control dust removal technology, during the use, boiler exhaust flue gas gets into absorption tower 1 after 5 desorption fly ashes of dust precipitator in advance, flue gas and desulfurization ash, denitration oxidation absorbent, water fully contact in absorption tower 1, acid gas and absorbent Ca (OH) in the flue gas 2 Continuously carrying out chemical reaction, and converting NO which is insoluble in water in the flue gas into NO under the strong oxidation and catalytic action of an oxidant 2 And finally absorbed by Ca (OH) 2 And removing the acid gas so as to ensure that the content of the acid gas in the flue gas is within the index range. The flue gas after desulfurization and denitrification enters the dust remover 3 through the dust removal pipeline 7, the desulfurization ash, the fly ash, the unreacted absorbent and the like are captured by a filter bag in the dust remover 3, and the clean flue gas is induced to the smoke and the halogen through the induced draft fan 17 and is discharged to the atmosphere. The dust on the filter bag is subjected to pulse spraying, one part of dust (containing unreacted absorbent) returns to the absorption tower 1 through a circulating ash pipeline 9 for recycling, and the other part of dust is conveyed to the desulfurization ash storage 4 through an external ash discharge pipeline 10. The utility model discloses increased induced air pipeline 11 between carbide slag storehouse 2 top and absorption tower 1, utilized the negative pressure of absorption tower 1 to carry out the extraction of negative pressure to carbide slag storehouse 2 to maintain carbide slag storehouse 2 and be the negative pressure, install electric heater 18 on the induced air pipeline 11, can avoid temperature to hang down when the pipeline freezes excessively. The exhaust fan 14 at the top of the carbide slag bin 2 is used as a standby fan only when carbide slag is pumped before driving, so that the use frequency is reduced, and the maintenance work of the exhaust fan 14 is reduced. And secondly, the negative pressure of the absorption tower 1 is far greater than the negative pressure produced by the exhaust fan 14, so that the pipe blockage rate during the pumping of the carbide slag is reduced. Finally, the exhaust fan 14 may pump the carbide slag in the bin to the environment, which damages the sanitation of the environment, and improves the sanitation of the top of the carbide slag bin 2 after transformation.
The utility model discloses fixed intercommunication induced air pipeline between carbide slag storehouse top and absorption tower has reduced exhaust fan's the rate of utilization, has reduced exhaust fan's power consumption and maintenance work load, has reduced the noise pollution and the secondary pollution that export discharge caused to the environment when the fan moves, has the characteristics of safety, laborsaving, simple and convenient, environmental protection.
Above technical characteristic has constituted the utility model discloses an embodiment, it has stronger adaptability and implements the effect, can increase and decrease unnecessary technical characteristic according to actual need, satisfies the demand of different situation.
Claims (8)
1. The utility model provides a dry desulfurization denitration dust removal integrated device, its characterized in that includes the absorption tower, the carbide slag storehouse, the dust remover, the desulfurization ash storehouse, the dust remover in advance, fixed intercommunication has the carbide slag pipeline between first feed end in absorption tower bottom and the carbide slag storehouse discharge end, fixed intercommunication has the dust removal pipeline between the end of giving vent to anger in absorption tower upper portion and the dust remover inlet end, fixed intercommunication has the flue gas pipeline between the end of giving vent to anger in absorption tower bottom inlet end and the dust remover in advance, fixed intercommunication has the circulation ash pipeline between the first discharge end in dust remover bottom and the second feed end in absorption tower bottom, fixed intercommunication has outer ash discharge pipeline between dust remover bottom second discharge end and the desulfurization ash storehouse, carbide slag storehouse top and the fixed intercommunication in absorption tower upper portion have the induced air pipeline, carbide slag storehouse top is fixed intercommunication has the exhaust pipe line, last from bottom to top fixed mounting has reserve dust remover and exhaust fan.
2. The integrated device for dry desulfurization, denitrification and dust removal according to claim 1, characterized in that a process water pipeline is fixedly communicated with a water inlet at the lower part of the absorption tower.
3. The integrated device for desulfurization, denitrification and dedusting by dry method according to claim 1 or 2, characterized in that the upper part of the deduster is fixedly communicated with a clean air pipe line, and an induced draft fan is fixedly installed on the clean air pipe line.
4. The integrated device for dry desulfurization, denitrification and dust removal according to claim 1 or 2, characterized in that the air guiding pipeline is sequentially provided with an electric heater and a butterfly valve along the air flow direction.
5. The integrated device for dry desulfurization, denitrification and dust removal according to claim 3, wherein the air guide pipeline is sequentially provided with an electric heater and a butterfly valve along the air flow direction.
6. The integrated device for desulfurization, denitrification and dust removal by dry process according to claim 1, 2 or 5, characterized in that a silo pump is fixedly installed on the outer ash discharge pipeline.
7. The integrated device for dry desulfurization, denitrification and dust removal according to claim 3, characterized in that a silo pump is fixedly installed on the outer ash discharge pipeline.
8. The integrated device for dry desulfurization, denitrification and dust removal according to claim 4, characterized in that a silo pump is fixedly installed on the outer ash discharge pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220953879.1U CN217613996U (en) | 2022-04-24 | 2022-04-24 | Dry desulfurization, denitrification and dust removal integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220953879.1U CN217613996U (en) | 2022-04-24 | 2022-04-24 | Dry desulfurization, denitrification and dust removal integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217613996U true CN217613996U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220953879.1U Active CN217613996U (en) | 2022-04-24 | 2022-04-24 | Dry desulfurization, denitrification and dust removal integrated device |
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| Country | Link |
|---|---|
| CN (1) | CN217613996U (en) |
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2022
- 2022-04-24 CN CN202220953879.1U patent/CN217613996U/en active Active
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