CN103185454B - Novel composite reverse seal for revolving kiln - Google Patents
Novel composite reverse seal for revolving kiln Download PDFInfo
- Publication number
- CN103185454B CN103185454B CN201310111346.4A CN201310111346A CN103185454B CN 103185454 B CN103185454 B CN 103185454B CN 201310111346 A CN201310111346 A CN 201310111346A CN 103185454 B CN103185454 B CN 103185454B
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- flap
- rotary kiln
- new type
- sealing
- kiln
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- Muffle Furnaces And Rotary Kilns (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
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Abstract
The invention discloses a novel composite reverse seal for a revolving kiln, and the novel composite reverse seal can be used for effectively preventing external air flow from entering the interior of the kiln head and preventing the internal air flow and the dust in the kiln head from leaking out. A fish scale plate in an original fish scale type seal is reversely installed, so that the effective sealing purpose is achieved.
Description
Art
The present invention relates to a kind of cement industry, chemical engineering industry rotary kiln NEW TYPE OF COMPOSITE oppositely seals, especially can have remarkable sealing effectiveness in high temperature, high dust, cylindrical shell radial beat is large, axial float is large working environment.
Background technology
At present, known rotary kiln end sealing all adopts fish scale lamellar seal, is made up of air-cooled cover, diaphragm seal, cone, back-up ring and heat shield liner.In working order, cement slurry flows to kiln hood by rotary kiln, is sintered into grog, and kiln hood place blast, lower than kiln tail, makes Secondary Air flow to kiln tail by kiln hood, and fish scale lamellar seal is the one sealing preventing grog from exposing from gap between kiln head cover and kiln hood.But existing fish scale chip hermetically-sealed construction form is flap and air-cooled steel wire of applying mechanically to be strained by weight, flap installation direction is identical with air flow direction, under the thump being subject to high-temperature dusty gas for a long time, flap and air-cooled cover surface is caused progressively to be worn and torn, generation is leaked out, leak grey phenomenon, not only destroy operating pressure requirement in kiln, and greatly reduce the service life of fish scale lamellar seal.
Summary of the invention
Can not well stop kiln hood to leak out to overcome existing fish scale lamellar seal and leak ash, the invention provides a kind of compound reverse sealing structure of new structure, the compound of this new structure oppositely seals and can not only effectively prevent kiln hood from leaking out and leak ash, and processing and fabricating is simple, easy for installation.
The technical solution adopted for the present invention to solve the technical problems is: contrary with airflow direction for flap installation direction, by the angle that adjustment flap withstands shocks, guide wind direction flow trace cleverly, flap is made to avoid the frontal impact of high-temperature dusty gas, apply axial labyrinth seal more simultaneously, guarantee the effect of sealing from axial and radial both direction, sealing mode can reach effective sealing purpose.
The invention has the beneficial effects as follows, grog ash and wind in kiln effectively can be stoped to spill by between flap and sealing shroud, fundamentally solve the problem that rotary kiln leaks out and leaks ash, make extend to more than 2 years the service life of this flap and air-cooled cover, and structure is simple, easy for installation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the present invention is further described.
Fig. 1 is sealing principle figure of the present invention.
Fig. 2 is sealing principle figure left view of the present invention.
Fig. 3 is novel seal schematic diagram sealing position enlarged drawing.
Fig. 4 is old-fashioned sealing principle figure
Fig. 5 is old-fashioned sealing principle figure left view
Fig. 6 is that old-fashioned sealing principle figure seals position enlarged drawing.
In Fig. 3: 1. kiln head cover, 2. hold-down support, 3. seal closure, 4. flap, 5. cone, 6. cylinder of rotary kiln, 7. steel wire rope, 8. sealing shroud.
In Fig. 5, Fig. 6: 1. air-cooled cover, 2. flap, 3. cone, 4. baffle plate, 5. feather key, 6. kiln head cover, 7. steel wire rope, 8. counterweight.
Detailed description of the invention
Flap installation direction is contrary with old-fashioned flap installation direction in figure 3, by screw-button tense wire rope, flap is fitted on sealing shroud, when kiln hood inside is negative pressure relative to the external world, because steel wire rope is pressed on flap on sealing shroud, extraneous air is difficult to enter kiln hood inside, when kiln hood inside is malleation relative to the external world, the inner normal pressure relative to the external world compresses flap, make to seal between flap and sealing shroud more tight, kiln hood internal gas flow and dust cannot be spilt, axial labyrinth seal stops high-temperature dusty gas frontal impact flap, sealing mode can reach effective sealing effectiveness.
Claims (5)
1. a rotary kiln NEW TYPE OF COMPOSITE oppositely seals, and it to be furthered flap by steel wire rope, making laminating between flap and sealing shroud form effective sealing, it is characterized in that: it is contrary with airflow direction that rotary kiln NEW TYPE OF COMPOSITE oppositely seals flap direction.
2. rotary kiln NEW TYPE OF COMPOSITE according to claim 1 oppositely seals, and it is characterized in that: the flap of sealing is strained on sealing shroud by screw-button by steel wire rope.
3. rotary kiln NEW TYPE OF COMPOSITE according to claim 1 oppositely seals, and it is characterized in that: tense wire rope is steel core high-temperature-resistant steel wire rope.
4. rotary kiln NEW TYPE OF COMPOSITE according to claim 1 oppositely seals, and it is characterized in that: flap is made up of two-layer stainless steel substrates and one deck High-temperature resistant ceramic fiber plate.
5. rotary kiln NEW TYPE OF COMPOSITE according to claim 4 oppositely seals, and it is characterized in that: the structure of flap is that High-temperature resistant ceramic fiber plate is arranged between two-layer stainless steel substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111346.4A CN103185454B (en) | 2013-04-02 | 2013-04-02 | Novel composite reverse seal for revolving kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111346.4A CN103185454B (en) | 2013-04-02 | 2013-04-02 | Novel composite reverse seal for revolving kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103185454A CN103185454A (en) | 2013-07-03 |
| CN103185454B true CN103185454B (en) | 2015-04-15 |
Family
ID=48676761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310111346.4A Active CN103185454B (en) | 2013-04-02 | 2013-04-02 | Novel composite reverse seal for revolving kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103185454B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642984A (en) * | 2017-10-10 | 2018-01-30 | 南京中材水泥备件有限公司 | A kind of rotary kiln end novel graphite sealing device |
| CN112696687A (en) * | 2020-12-27 | 2021-04-23 | 上海域德环保工程有限公司 | Rotary kiln with middle air intake device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203216254U (en) * | 2013-04-02 | 2013-09-25 | 南京中材水泥备件有限公司 | Novel composite reverse seal of rotary kiln |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10141624A (en) * | 1996-11-14 | 1998-05-29 | Ishikawajima Harima Heavy Ind Co Ltd | Circumferential seal device for rotary grate furnace |
| CN2909134Y (en) * | 2006-05-17 | 2007-06-06 | 中国铝业股份有限公司 | End sealing device of rotary-drum furnace |
| CN200940681Y (en) * | 2006-08-29 | 2007-08-29 | 中信重型机械公司 | Novel seal device for rotary device |
| CN201173683Y (en) * | 2007-12-26 | 2008-12-31 | 山东山水水泥集团有限公司 | Sealing device |
| CN101666578A (en) * | 2008-09-05 | 2010-03-10 | 贵阳铝镁设计研究院 | Rotary kiln tail sealing device |
| CN202329084U (en) * | 2011-12-07 | 2012-07-11 | 中国铝业股份有限公司 | Sealing device of rotary kiln |
| CN202350499U (en) * | 2011-12-20 | 2012-07-25 | 攀枝花钢企米易白马球团有限公司 | Fish scale resetting device |
| CN102889783B (en) * | 2012-11-06 | 2014-07-02 | 大唐国际发电股份有限公司 | Sealing device and rotary kiln |
-
2013
- 2013-04-02 CN CN201310111346.4A patent/CN103185454B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203216254U (en) * | 2013-04-02 | 2013-09-25 | 南京中材水泥备件有限公司 | Novel composite reverse seal of rotary kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103185454A (en) | 2013-07-03 |
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