CN204460197U - A kind of slag dropping tube tube cap structure - Google Patents
A kind of slag dropping tube tube cap structure Download PDFInfo
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- CN204460197U CN204460197U CN201420873129.9U CN201420873129U CN204460197U CN 204460197 U CN204460197 U CN 204460197U CN 201420873129 U CN201420873129 U CN 201420873129U CN 204460197 U CN204460197 U CN 204460197U
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- cap body
- leg
- backing plate
- tube
- cap
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Abstract
The utility model relates to a kind of slag dropping tube tube cap structure; it is characterized in that; comprise cap body; the bottom of cap body is provided with backing plate; leg is provided with in the bottom of backing plate; leg through furnace bottom air distribution plate, is connected with on the downside of furnace bottom air distribution plate, is provided with junction between covering cap body and backing plate and the protective layer of junction between backing plate and leg in cap body both sides.The utility model can prevent pipe cap from coming off, and the weld seam of leg and furnace bottom air distribution plate is arranged on the downside of furnace bottom air distribution plate, avoids the erosive wear that weld seam is subject to slag.Pipe cap top drilling, under preventing extreme case, when pipe cap comes off and tips upside down on cinder notch, blocks cinder notch, and causing cannot deslagging.
Description
Technical field
The utility model relates to a kind of pipe cap being placed on slag dropping tube and falling above cinder notch.
Background technology
Slag dropping tube is the vitals transporting slag in CFBB (CFB) cold slag system, slag dropping tube pipe cap is positioned at the burner hearth on the upside of furnace bottom air distribution plate, be connected with furnace bottom air distribution plate, it act as the falling speed reducing high temperature furnace slag, avoid high temperature furnace slag directly washing away slag dropping tube, alleviate the wearing and tearing to slag dropping tube in slag dropping process.What have in prior art does not arrange top pipe cap, and some pipe caps block cinder notch owing to designing unreasonable after causing pipe cap to come off.
Summary of the invention
The purpose of this utility model blocks cinder notch after preventing pipe cap from coming off.
In order to achieve the above object; the technical solution of the utility model there is provided a kind of slag dropping tube tube cap structure; it is characterized in that; comprise cap body; the bottom of cap body is provided with backing plate, is provided with leg in the bottom of backing plate, and leg is through furnace bottom air distribution plate; be connected with on the downside of furnace bottom air distribution plate, be provided with junction between covering cap body and backing plate in cap body both sides and the protective layer of junction between backing plate and leg.
Preferably, be welded and fixed between described cap body and described backing plate; Be welded and fixed between described backing plate and described leg.
Preferably, described protective layer is the refractory casting bed of material.
Preferably, a top drilling is provided with at described cap body top.
Preferably, at least one STH is provided with in the side of described cap body.
At the cinder notch that falls, the pipe cap that the utility model provides is set; reduce the falling speed of high temperature furnace slag; avoid high temperature furnace slag directly washing away slag dropping tube; alleviate the wearing and tearing to slag dropping tube in slag dropping process; transitional joint region weld seam is protected by castable refractory, prevents attachment weld from being ground away by slag, causes pipe cap to come off; the weld seam of leg and furnace bottom air distribution plate is arranged on the downside of furnace bottom air distribution plate, avoids the erosive wear that weld seam is subject to slag.Pipe cap top drilling, under preventing extreme case, when pipe cap comes off and tips upside down on cinder notch, blocks cinder notch, and causing cannot deslagging.
Accompanying drawing explanation
The structural representation of a kind of slag dropping tube tube cap structure that Fig. 1 provides for the utility model.
Detailed description of the invention
For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
As shown in Figure 1, a kind of slag dropping tube tube cap structure that the utility model provides, comprise cap body 1, cap body 1 is positioned at above the cinder notch that falls of slag dropping tube 6.Cap body 1 and leg 4 weld with backing plate 2 respectively, carry out transition connection, and the refractory casting bed of material 3 is for the protection of the weld seam of this transitional joint region.Leg 4, through furnace bottom air distribution plate 5, is connected with on the downside of furnace bottom air distribution plate 5.One top drilling is arranged at cap body 1 top, and cap body 1 side has a STH at least.
Claims (5)
1. a slag dropping tube tube cap structure; it is characterized in that; comprise cap body (1); the bottom of cap body (1) is provided with backing plate (2); leg (4) is provided with in the bottom of backing plate (2); leg (4) is through furnace bottom air distribution plate (5); be connected with furnace bottom air distribution plate (5) downside, be provided with junction between covering cap body (1) and backing plate (2) in cap body (1) both sides and the protective layer of junction between backing plate (2) and leg (4).
2. a kind of slag dropping tube tube cap structure as claimed in claim 1, is characterized in that, is welded and fixed between described cap body (1) and described backing plate (2); Be welded and fixed between described backing plate (2) and described leg (4).
3. a kind of slag dropping tube tube cap structure as claimed in claim 1, is characterized in that, described protective layer is the refractory casting bed of material (3).
4. a kind of slag dropping tube tube cap structure as claimed in claim 1, is characterized in that, is provided with a top drilling at described cap body (1) top.
5. a kind of slag dropping tube tube cap structure as claimed in claim 1, is characterized in that, is provided with at least one STH in the side of described cap body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420873129.9U CN204460197U (en) | 2014-12-30 | 2014-12-30 | A kind of slag dropping tube tube cap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420873129.9U CN204460197U (en) | 2014-12-30 | 2014-12-30 | A kind of slag dropping tube tube cap structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204460197U true CN204460197U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420873129.9U Active CN204460197U (en) | 2014-12-30 | 2014-12-30 | A kind of slag dropping tube tube cap structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204460197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568092A (en) * | 2016-10-26 | 2017-04-19 | 国投盘江发电有限公司 | Pipe cap structure of slag drop pipe in thermal power generation boiler |
| CN108800115A (en) * | 2018-07-09 | 2018-11-13 | 杭州启澄科技有限公司 | A kind of Wind cap for boiler that power plant field uses |
-
2014
- 2014-12-30 CN CN201420873129.9U patent/CN204460197U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568092A (en) * | 2016-10-26 | 2017-04-19 | 国投盘江发电有限公司 | Pipe cap structure of slag drop pipe in thermal power generation boiler |
| CN106568092B (en) * | 2016-10-26 | 2019-06-11 | 国投盘江发电有限公司 | The tube cap structure of slag dropping tube in a kind of thermal power generation boiler |
| CN108800115A (en) * | 2018-07-09 | 2018-11-13 | 杭州启澄科技有限公司 | A kind of Wind cap for boiler that power plant field uses |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |