CN220287481U - Power generation boiler flue ash conveying mechanism - Google Patents
Power generation boiler flue ash conveying mechanism Download PDFInfo
- Publication number
- CN220287481U CN220287481U CN202322030155.7U CN202322030155U CN220287481U CN 220287481 U CN220287481 U CN 220287481U CN 202322030155 U CN202322030155 U CN 202322030155U CN 220287481 U CN220287481 U CN 220287481U
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- Prior art keywords
- flue
- ash
- fan
- power generation
- motor
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- 239000010881 fly ash Substances 0.000 title claims abstract description 35
- 238000010248 power generation Methods 0.000 title claims abstract description 13
- 239000002956 ash Substances 0.000 claims abstract description 52
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000007790 scraping Methods 0.000 claims abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003546 flue gas Substances 0.000 abstract description 9
- 239000000779 smoke Substances 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 8
- 239000004744 fabric Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Incineration Of Waste (AREA)
Abstract
The utility model discloses a flue ash conveying mechanism of a power generation boiler, which relates to the technical field of flue ash conveying and comprises an S-shaped flue, wherein an ash bucket is arranged on the lower side of the flue, a motor is arranged on the upper side of the flue, the output end of the motor is connected with a rotating rod, a scraper is arranged on the rotating rod, a cleaning brush is arranged on the scraper and is abutted against the inner side wall of the ash bucket, a related fan is arranged on the bottom side of the ash bucket, the lower end of a closing fan is connected to an ash conveying pipeline, and one end of the ash conveying pipeline is arranged on the air outlet end of a Roots fan. The utility model drives the rotating rod to rotate through the motor, thereby driving the cleaning brush on the scraping plate to clean the fly ash stored in the ash bucket, the sealing type of the flue is ensured by the closing fan, the fly ash in the flue gas naturally drops and accumulates in the ash bucket, and the fly ash can be conveyed into the ash conveying pipeline under the action of the closing fan, so that the accumulation of the fly ash in the flue is avoided, the smoke discharging efficiency is improved, the internal and external supporting load of the flue is reduced, and the integral structural stability of the flue is improved.
Description
Technical Field
The utility model relates to the technical field of flue ash conveying, in particular to a flue ash conveying mechanism of a power generation boiler.
Background
The flue gas after the boiler combustion of the thermal power plant contains a large amount of fly ash and harmful gas, wherein the fly ash is removed by a dust remover (a bag-type dust remover), the harmful gas is removed by a desulfurization and denitration device, and finally the harmful gas is discharged through a chimney. The flue gas is discharged from the tail of the boiler and enters the dust remover for dust removal through the tail flue, and fly ash is easy to accumulate in the flue at the section in operation, so that deposited ash and dead ash are formed and cannot be discharged. The main stream in industry is to install ash conveying device separately in the section of flue to discharge accumulated ash in time, but due to the design defect of part of boilers, the ash conveying device is difficult to install on the flue of the boiler, so that a large amount of accumulated ash is easy to form in the flue during the use of the boiler.
Because a large amount of dust can not be discharged in time during the operation, the flow area of a flue is greatly reduced, the smoke discharge efficiency is reduced, the load of an induced draft fan is greatly increased, the dust removing load of a cloth bag is increased, the abrasion of the cloth bag is serious, and the cloth bag replacement frequency is high; meanwhile, fly ash is accumulated in the flue in a large amount, so that the bearing capacity of the flue is also a huge test, and the integral structural stability of the flue is seriously influenced. Accordingly, there is a need for a power generation boiler flue ash handling mechanism that addresses the above-described problems.
Disclosure of Invention
The utility model aims to provide an ash conveying mechanism of a flue of a power generation boiler, which aims to solve the defects caused by the prior art.
The utility model provides a power generation boiler flue ash conveying mechanism, includes the flue of "S" type, the ash bucket is installed to the downside of flue, the motor is installed to the upside of flue, the output of motor is connected with the dwang, install the scraper blade on the dwang, be equipped with the cleaning brush on the scraper blade, the cleaning brush butt is on the inside wall of ash bucket, relevant fan is installed to the downside of ash bucket, the lower extreme of closing the fan is connected on ash conveying pipeline, the one end of ash conveying pipeline is installed on the air-out end of roots fan.
Preferably, the flue is sleeved with a supporting ring, and a supporting column is arranged at the bottom side of the supporting ring.
Preferably, the motor is connected with the rotating rod through a coupler.
Preferably, the outer walls of the two sides of the scraping plate are obliquely arranged.
Preferably, the tail end of the ash conveying pipeline is connected to the ash collecting device.
The utility model has the advantages that: the utility model drives the rotating rod to rotate by the motor, thereby driving the cleaning brush on the scraping plate to clean the fly ash stored in the ash bucket, the fan is closed to ensure the sealing type of the flue, the fly ash in the flue gas naturally drops and accumulates in the ash bucket, and the fly ash can be conveyed to the ash conveying pipeline under the action of the fan, so that the accumulation of the fly ash in the flue is avoided, the smoothness of the flue can be kept, the smoke discharging efficiency is improved, the abrasion of a dust removing cloth bag and the load of the fan are reduced, the internal and external supporting load of the flue is reduced, and the integral structural stability of the flue is improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
FIG. 2 is a schematic view of the structure of the flue of the present utility model.
Fig. 3 is a schematic view of the motor, turning bar and blade assembly of the present utility model.
Wherein: 1-flue; 2-ash bucket; 3-an electric motor; 4-rotating the rod; 5-scraping plate; 6-cleaning brushes; 7-turning off the fan; 8-ash conveying pipelines; 9-Roots blower; 10-a support ring; 11-support columns.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1 to 3, an ash conveying mechanism of a flue of a power generation boiler comprises an S-shaped flue 1, an ash bucket 2 is arranged on the lower side of the flue 1, a motor 3 is arranged on the upper side of the flue 1, the output end of the motor 3 is connected with a rotating rod 4, a scraping plate 5 is arranged on the rotating rod 4, a cleaning brush 6 is arranged on the scraping plate 5 and is abutted to the inner side wall of the ash bucket 2, a relevant fan 7 is arranged on the bottom side of the ash bucket 2, the lower end of the relevant fan 7 is connected to an ash conveying pipeline 8, and one end of the ash conveying pipeline 8 is arranged on the air outlet end of a Roots blower 9. The flue 1 is in an S shape, flue gas enters from one end of a lower side and is discharged from one end of a higher side, an inclined bending part is arranged in the flue 1, the flow speed of the flue gas can be slowed down, the sedimentation of fly ash can be facilitated, meanwhile, the sedimentation of the fly ash is piled up into a block, and the block is collected in a side wall glide slope ash bucket 2, the motor 3, the air closing machine 7 and the Roots blower 9 are electrically connected to a field power supply, the air closing machine 7 is of a pressure-resistant type, a closed rotor is adopted, the air flow pressure in a conveying pipe is guaranteed not to leak, and materials can be safely conveyed and collected.
In this embodiment, the flue 1 is sleeved with a support ring 10, and a support column 11 is installed at the bottom side of the support ring 10.
In this embodiment, the motor 3 and the rotating rod 4 are connected by a coupling.
In this embodiment, the outer walls of both sides of the scraping plate 5 are inclined.
In this embodiment, the end of the ash conveying pipe 8 is connected to an ash collecting device.
The working principle of the utility model is as follows: when the flue gas moves in the flue 1, fly ash in the flue gas naturally drops and accumulates in the ash bucket 2, and when the fly ash needs to be cleaned, the air shutoff fan 7 is started to send the fly ash in the ash bucket 2 into the ash conveying pipeline 8, the Roots blower 9 is started to perform blowing operation in the ash conveying pipeline 8, and the fly ash is blown to an ash accumulating device at the tail end of the ash conveying pipeline 8 to be collected.
According to the utility model, the motor 3 drives the rotating rod 4 to rotate, so that the cleaning brush 6 on the scraper 5 is driven to clean fly ash stored in the ash bucket 2, the sealing type of the flue 1 is ensured by the air shutoff machine 7, the fly ash in the flue gas naturally drops and accumulates in the ash bucket 2, and can be conveyed to the ash conveying pipeline 8 under the action of the air shutoff machine 7, so that the accumulation of the fly ash in the flue 1 is avoided, the smoothness of the flue 1 can be kept, the smoke discharging efficiency is improved, meanwhile, the abrasion of a dust removing cloth bag and the load of the air shutoff machine are reduced, the internal and external supporting loads of the flue 1 are reduced, and the structural stability of the whole flue 1 is improved.
It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.
Claims (5)
1. The utility model provides a power generation boiler flue ash conveying mechanism which characterized in that: including flue (1) of "S" type, ash bucket (2) are installed to the downside of flue (1), motor (3) are installed to the upside of flue (1), the output of motor (3) is connected with dwang (4), install scraper blade (5) on dwang (4), be equipped with cleaning brush (6) on scraper blade (5), cleaning brush (6) butt is on the inside wall of ash bucket (2), shut down fan (7) are installed to the downside of ash bucket (2), shut down the lower extreme of fan (7) and connect on ash conveying pipeline (8), the one end of ash conveying pipeline (8) is installed on the air-out end of roots' S fan (9).
2. The power generation boiler flue ash handling mechanism of claim 1, wherein: the flue (1) is sleeved with a supporting ring (10), and a supporting column (11) is arranged at the bottom side of the supporting ring (10).
3. The power generation boiler flue ash handling mechanism of claim 1, wherein: the motor (3) is connected with the rotating rod (4) through a coupler.
4. The power generation boiler flue ash handling mechanism of claim 1, wherein: the outer walls of the two sides of the scraping plate (5) are obliquely arranged.
5. The power generation boiler flue ash handling mechanism of claim 1, wherein: the tail end of the ash conveying pipeline (8) is connected to the ash collecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322030155.7U CN220287481U (en) | 2023-07-31 | 2023-07-31 | Power generation boiler flue ash conveying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322030155.7U CN220287481U (en) | 2023-07-31 | 2023-07-31 | Power generation boiler flue ash conveying mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220287481U true CN220287481U (en) | 2024-01-02 |
Family
ID=89329674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322030155.7U Active CN220287481U (en) | 2023-07-31 | 2023-07-31 | Power generation boiler flue ash conveying mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220287481U (en) |
-
2023
- 2023-07-31 CN CN202322030155.7U patent/CN220287481U/en active Active
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| GR01 | Patent grant |