CN102518888A - Tubular compressing device - Google Patents
Tubular compressing device Download PDFInfo
- Publication number
- CN102518888A CN102518888A CN2011104600523A CN201110460052A CN102518888A CN 102518888 A CN102518888 A CN 102518888A CN 2011104600523 A CN2011104600523 A CN 2011104600523A CN 201110460052 A CN201110460052 A CN 201110460052A CN 102518888 A CN102518888 A CN 102518888A
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- China
- Prior art keywords
- steel pipe
- guide tube
- gas guide
- duster
- gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a tubular compressing device, which includes a gas guide tube (6) and a duster upper support plate (7) for supporting the gas guide tube (6), wherein a steel pipe (4) is sleeved outside the gas guide tube (6); the steel pipe (4) is fixed on the duster upper support plate (7); the space formed by the steel pipe (4), the gas guide tube (6) and the duster upper support plate (7) is filled with ceramic fiber (3); and a gland (1) is also fixed on the steel pipe (4) and encloses the space filled with the ceramic fiber (3). By adopting the structure, when the duster undergoes the high-temperature stress deformation, as the gas guide tube (6), the duster upper support plate (7) and the steel pipe (4) are in clearance fit, the stress concentration is avoided, meanwhile, the upper-lower space gas shifting is avoided under the action of the ceramic sealing material, and the sealing effect is improved.
Description
Technical field
The present invention relates to a kind of in the deduster field tubular type hold down gag of sealing usefulness between air pipe and the deduster top plate.
Background technique
From 2000, at China's iron and steel coking industry, because applying of grate-rotary kiln pelletizing process and coking dry quenching technology brings the visual plant-a large amount of demand of gas multi-tube dust cleaner in the technology dust removal process.Because the specific (special) requirements of technology is high for the dust removal efficiency requirement of multi-tube dust cleaner, satisfies the stable service condition of long-term safety simultaneously.
For multi-tube dust cleaner, guarantee higher dust removal efficiency and under the applying working condition condition operation steady in a long-term be the good and bad Requirements of multi-tube dust cleaner design.
The gas multi-tube dust cleaner has a large amount of air pipes, and air pipe need seal between top and deduster top plate.For air pipe top seal form, former design seal arrangement mainly contains two kinds: 1, adopt flange butt joint assembling; 2, voussoir, cover of wedge compacted form.
In practical application, after deduster used a period of time, we found that sealing part all occurs connecting loosening, and sealing problem in various degree appears in the phenomenon such as collaborate that becomes flat.Through analyzing main cause be: mainly be loosening by connecting of causing of thermal distortion.Sealing bad result is: cause undressed gas directly to enter into pure district, thereby directly cause the result that dust removal efficiency descends, performance reduces.
Through further analysis, for former air pipe seal arrangement, below 150 ℃; The metal fever distortion is less; Can use as seal arrangement, but for the pelletizing process dedusting, the actual conditions temperature is under 200～500 ℃ of conditions; The working condition that thermal stress deformation is bigger then can not guarantee the good sealing that connects.Therefore need adjust improvement to this part sealing configuration.
Summary of the invention
Technical problem to be solved by this invention provides a kind of tubular type hold down gag, and this device is used for sealing between air pipe and the deduster top plate.
In order to solve above-mentioned technical problem; Technological scheme of the present invention is: a kind of tubular type hold down gag, comprise air pipe and the deduster top plate of holding air pipe, and said air pipe is arranged with steel pipe outward; Said steel pipe is fixed on the deduster top plate; Be filled with ceramic fiber in the space that said steel pipe, air pipe and deduster top plate constitute, on said steel pipe, also be fixed with gland, the said space that is filled with ceramic fiber of said gland sealing.
Be provided with packing ring between said gland and the ceramic fiber.Packing ring has sealed the gap between gland and the air pipe, avoids ceramic fiber to be taken away by negative pressure.
Fix through fixed hook between said gland and the steel pipe.
Tubular type hold down gag of the present invention can be effectively to sealing between air pipe and the deduster top plate, and good sealing effect has improved dust removal efficiency.
After adopting this structure, when the deduster high temperature stress is out of shape, owing to being Spielpassung between air pipe, deduster top plate, the steel pipe, the stress concentration phenomenon can not occur, under the effect of ceramic sealing material, about can't occurring collaborate in the space simultaneously.If any part gas leakage, filter through ceramic seal, dust can not pass through yet, thus dust removal efficiency can not reduce.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Accompanying drawing is a structural representation of the present invention.
Embodiment
Scheme of the present invention is based on following thinking: metal stress in thermal deformation process is greatly, if through rigid connection, the effect that reaches sealing is to be difficult to realize.Adopt ceramic fiber elasticity excessively can eliminate thermal stress, can reach the result who does not reduce dust removal efficiency as the sponge Chalk-dust filtering simultaneously.
Shown in accompanying drawing, the present invention mainly is made up of gland 1, packing ring 2, stuffing box packing, steel pipe 4 and fixed hook 5 etc.Under the condition that guarantees the air pipe installation precision, welded steel pipe 4 adopts ceramic fiber 3 (heatproof is greater than 1000 ℃) as stuffing box packing on deduster top plate 7; After densification is real; The assembling packing ring 2, refill and join gland 1, through fixed hook 5 locate, stationary gland 1.Its middle washer 2 effects are gaps between close gland 1 and the air pipe 6, avoid the ceramic seal filler to be taken away by negative pressure.
The present invention is under high temperature (300～500 ℃) condition, and the sealing that can avoid thermal distortion to cause reduces, and reduces problem thereby solve the deduster dust removal efficiency, and can guarantee the long term seal effect.
The foregoing description does not limit the present invention in any way, and every employing is equal to the technological scheme that replacement or the mode of equivalent transformation obtain and all drops in protection scope of the present invention.
Claims (3)
1. tubular type hold down gag; Comprise air pipe (6) and hold the deduster top plate (7) of air pipe (6); It is characterized in that: said air pipe (6) is outer to be arranged with steel pipe (4), and said steel pipe (4) is fixed on the deduster top plate (7), is filled with ceramic fiber (3) in the space that said steel pipe (4), air pipe (6) and deduster top plate (7) constitute; On said steel pipe (4), also be fixed with gland (1), the said space that is filled with ceramic fiber (3) of said gland (1) sealing.
2. tubular type hold down gag according to claim 1 is characterized in that: be provided with packing ring (2) between said gland (1) and the ceramic fiber (3).
3. tubular type hold down gag according to claim 1 is characterized in that: fixing through fixed hook (5) between said gland (1) and the steel pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104600523A CN102518888A (en) | 2011-12-31 | 2011-12-31 | Tubular compressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104600523A CN102518888A (en) | 2011-12-31 | 2011-12-31 | Tubular compressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102518888A true CN102518888A (en) | 2012-06-27 |
Family
ID=46289915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104600523A Pending CN102518888A (en) | 2011-12-31 | 2011-12-31 | Tubular compressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518888A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204956U (en) * | 1986-07-15 | 1987-08-05 | 通化钢铁公司建筑安装公司 | Multi-pipe dust remover |
| CN2322687Y (en) * | 1998-03-17 | 1999-06-09 | 常熟市华能燃烧器制造有限公司 | Cyclone |
| CN201020414Y (en) * | 2007-03-22 | 2008-02-13 | 常熟市华能环保工程有限公司 | Sedimentator |
| CN201020415Y (en) * | 2007-03-22 | 2008-02-13 | 常熟市华能环保工程有限公司 | Sedimentator |
| CN202418962U (en) * | 2011-12-31 | 2012-09-05 | 常熟市华能环保工程有限公司 | Tubular pressing device |
-
2011
- 2011-12-31 CN CN2011104600523A patent/CN102518888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204956U (en) * | 1986-07-15 | 1987-08-05 | 通化钢铁公司建筑安装公司 | Multi-pipe dust remover |
| CN2322687Y (en) * | 1998-03-17 | 1999-06-09 | 常熟市华能燃烧器制造有限公司 | Cyclone |
| CN201020414Y (en) * | 2007-03-22 | 2008-02-13 | 常熟市华能环保工程有限公司 | Sedimentator |
| CN201020415Y (en) * | 2007-03-22 | 2008-02-13 | 常熟市华能环保工程有限公司 | Sedimentator |
| CN202418962U (en) * | 2011-12-31 | 2012-09-05 | 常熟市华能环保工程有限公司 | Tubular pressing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |