CN208687762U - For using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler - Google Patents
For using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler Download PDFInfo
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- CN208687762U CN208687762U CN201820770742.6U CN201820770742U CN208687762U CN 208687762 U CN208687762 U CN 208687762U CN 201820770742 U CN201820770742 U CN 201820770742U CN 208687762 U CN208687762 U CN 208687762U
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Abstract
The utility model provides a kind of for using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler.Mainly solves the problem of eastern coal fly ash interception device systems complexity of traditional standard, higher cost.Flying dust capturing device (3) are provided in denitration gas approach (2) above the economizer exit ash bucket (1), the flying dust capturing device (3) is welded by dust block board (4), connecting plate (5), bracket (6), it is provided with hole on the connecting plate (4), being inserted in the hole and welded by support tube (7) is fixed.Have the advantages that of simple structure and low cost, arresting efficiency is good, Non-energy-consumption.
Description
Technical field
The utility model relates to a kind of for using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler.
Background technique
Recently as the further investigation for being directed at eastern coal, boiler factory solves boiler substantially and mixes in one's power for China part Research Center
Burn coking, the dust stratification problem of quasi- eastern coal；However, due in quasi- eastern ash content of coal alkali metal content it is higher, fly ash granule viscosity is larger,
After bulky grain flying dust deposits on denitrification apparatus catalyst module surface, soot blower is difficult to dispel, and partially uses the power plant of quasi- eastern coal
The problem of occurring bulky grain flying dust blocking catalyst when boiler operatiopn and leading to catalyst abrasion.
Domestic relevant unit there is no preferable solution for problems at present, and the external prior art mainly passes through
The bulky grain flying dust intercepted in the pre- dedusting method separating flues such as strainer is arranged in denitrification apparatus entrance, it is said that can effectively filter big
Particle flying dust, but for the cleaning of strainer itself, the auxiliary equipment such as optional equipment vibration knocking device are separately needed, whole system is more
Complexity, and equipment is mostly import, higher cost.
Summary of the invention
Purpose of the utility model is to solve the above-mentioned problems of the prior art, and then provide a kind of for using
Quasi- east coal burning boiler bulky grain flying dust capturing device, with of simple structure and low cost, arresting efficiency is good, low energy consumption.
The purpose of this utility model is achieved through the following technical solutions:
It is a kind of for using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler, including economizer exit ash bucket, denitration enter
Mouthful flue, flying dust capturing device, dust block board, connecting plate, bracket, support tube, the denitration above the economizer exit ash bucket
Flying dust capturing device is provided in gas approach, the flying dust capturing device is welded by dust block board, connecting plate, bracket,
It is provided with hole on the connecting plate, being inserted in the hole by support tube and being welded is fixed.
Further, in the flying dust capturing device, dust block board is respectively welded at connecting plate at perpendicular column distribution, both ends
On, connecting plate is welded on bracket.
Further, the connecting plate is fixed on flue flue truss by support tube.
The beneficial effects of the utility model are: compared with existing strainer dedusting technology, the flying dust capturing device have with
Lower advantage:
1, of simple structure and low cost.Whole device specific structure part is conventional steel sheet and steel pipe composition, without any multiple
Miscellaneous structure or special material, the special material strainer and wear-resistant coating needed with strainer dedusting technology, and configure additional vibration
Knocking device is compared, and cost substantially reduces；
2, excellent effect is trapped, shows that the flying dust is caught according to CFD numerical simulation calculation structure and practical operation situation verifying
Acquisition means all have good trapping effect to the fly ash granule of various partial sizes.Compared to strainer dedusting technology, the device is in addition to right
Bulky grain flying dust has outside trapping effect, and certain trapping effect can be also played to little particle flying dust；
3, Non-energy-consumption, reliable for operation.Strainer dedusting technology need to configure a set of vibration and strike because that must clean to strainer itself
Device is beaten, for the vibration knocking device in addition to it must be used as power using electricity, the maintenance of its own also increases power plant service personnel's
Workload.The flying dust capturing device of the utility model introduction carries out scheme arrangement using computational fluid dynamics, and when operation passes through
Sweep of gases carries out automatically cleaning, is not necessarily to any consumption, reliable for operation durable, saves a large amount of maintenance costs.
Detailed description of the invention
Fig. 1 is Tthe utility model system longitudinal profile；
Fig. 2 is Tthe utility model system schematic top plan view；
Fig. 3 is Tthe utility model system front-view schematic diagram；
The concrete structure schematic diagram of Fig. 4 the utility model dust block board.
Appended drawing reference in figure, 1, economizer exit ash bucket；2, denitration gas approach；3, flying dust capturing device；4, gear ash
Plate；5, connecting plate；6, bracket；7 support tubes.
Specific embodiment
Be described in further detail below in conjunction with attached drawing to the utility model: the present embodiment is with the utility model skill
Implemented under premised on art scheme, give detailed embodiment, but the protection scope of the utility model be not limited to it is following
Embodiment.
As shown in Figure 1, Figure 2, a kind of for using the bulky grain of quasi- eastern coal burning boiler involved in the present embodiment shown in Fig. 3, Fig. 4
Flying dust capturing device, including economizer exit ash bucket 1, denitration gas approach 2, flying dust capturing device 3, dust block board 4, connecting plate 5,
Bracket 6, support tube 7 are provided with flying dust capturing device 3 in the denitration gas approach 2 of 1 top of the economizer exit ash bucket,
The flying dust capturing device 3 is welded by dust block board 4, connecting plate 5, bracket 6, hole is provided on the connecting plate 4, by supporting
Pipe 7 inserts in the hole and welds and is fixed；Increase flying dust in the denitration gas approach 2 above boiler economizer outlet ash bucket 1
Capturing device 3, specific arrangement need to determine by CFD numerical simulation.When the fly ash granule carried in flue gas flows through this
When place, due to the barrier effect of dust block board 4, part ash particle speed is reduced and is fallen in economizer hopper 1, to play
The effect of flying dust trapping.It is calculated through simulation and live operating condition verifying, the device especially has bulky grain flying dust good
Trap effect.
In the flying dust capturing device 3, at perpendicular column distribution, both ends are respectively welded on connecting plate 5 dust block board 4, are constituted
A fan ash retention equipment in flying dust capturing device 3, the every two adjacent connecting plates 5 for fanning on adjacent ash retention equipment are welded on same
It on a bracket 6, is mounted side by side, is covered with entire denitration gas approach 2, correspondingly, the aperture on connecting plate 5 and opening on bracket 6
Hole is corresponding, is inserted by support tube 7 to support fixation.
The connecting plate 4 is fixed on flue flue truss by support tube 7.
The dust block board 4 is the bending plate that angle is 120 °, and dust block board 4 is arranged setting in column, towards economizer hopper 1
One end bend downward 60 °, the vertical direction length of bending part is equal to the spacing distance between every two dust block board, such shape
60 ° are bent downward at the complete baffle of vertical direction, and towards one end of economizer hopper 1, it is straight to be able to guide bulky grain flying dust
It taps into economizer hopper 1.
Specifically, increasing a column dust block board, dust block board in the denitration gas approach above boiler economizer outlet ash bucket
It is connect with connecting plate and bracket, is fixed on flue truss, is uniformly distributed in horizontal flue by support tube, when flue gas flows through
When the device, due to the barrier effect of dust block board, bulky grain ash particle speed is reduced and is fallen in economizer hopper, to rise
It is acted on to flying dust trapping.
The preferable specific embodiment of the above, only the utility model, these specific embodiments are all based on this
Different implementations under utility model general idea, and the protection scope of the utility model is not limited thereto, it is any ripe
Know those skilled in the art within the technical scope disclosed by the utility model, any changes or substitutions that can be easily thought of, all
It should cover and be within the protection scope of the utility model.Therefore, the protection scope of the utility model should be with claims
Subject to protection scope.
Claims (3)
1. it is a kind of for using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler, including economizer exit ash bucket (1), denitration enter
Mouth flue (2), flying dust capturing device (3), dust block board (4), connecting plate (5), bracket (6), support tube (7), which is characterized in that institute
Flying dust capturing device (3), the flying dust are provided in the denitration gas approach (2) above economizer exit ash bucket (1) stated
Capturing device (3) is welded by dust block board (4), connecting plate (5), bracket (6), hole is provided on the connecting plate (5), by supporting
Pipe (7), which inserts in the hole and welds, to be fixed.
2. according to claim 1 for using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler, which is characterized in that institute
In the flying dust capturing device (3) stated, at perpendicular column distribution, both ends are respectively welded on connecting plate (5) dust block board (4), connecting plate (5)
It is welded on bracket (6).
3. according to claim 1 for using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler, which is characterized in that institute
The connecting plate (5) stated is fixed on flue flue truss by support tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770742.6U CN208687762U (en) | 2018-05-23 | 2018-05-23 | For using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770742.6U CN208687762U (en) | 2018-05-23 | 2018-05-23 | For using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208687762U true CN208687762U (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820770742.6U Active CN208687762U (en) | 2018-05-23 | 2018-05-23 | For using the bulky grain flying dust capturing device of quasi- eastern coal burning boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146096A (en) * | 2020-09-30 | 2020-12-29 | 无锡华光环保能源集团股份有限公司 | Fly ash collecting device in grate waste incinerator |
-
2018
- 2018-05-23 CN CN201820770742.6U patent/CN208687762U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146096A (en) * | 2020-09-30 | 2020-12-29 | 无锡华光环保能源集团股份有限公司 | Fly ash collecting device in grate waste incinerator |
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