CN103185454A - Novel composite reverse seal for revolving kiln - Google Patents
Novel composite reverse seal for revolving kiln Download PDFInfo
- Publication number
- CN103185454A CN103185454A CN2013101113464A CN201310111346A CN103185454A CN 103185454 A CN103185454 A CN 103185454A CN 2013101113464 A CN2013101113464 A CN 2013101113464A CN 201310111346 A CN201310111346 A CN 201310111346A CN 103185454 A CN103185454 A CN 103185454A
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- flap
- rotary kiln
- oppositely
- new type
- seals
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- Muffle Furnaces And Rotary Kilns (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
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
Affiliated technical field
The present invention relates to a kind of cement industry, chemical engineering industry oppositely seals with the rotary kiln NEW TYPE OF COMPOSITE, especially can in high temperature, high dust, the cylindrical shell radial beat is big, axial float is big working environment remarkable sealing effectiveness be arranged.
Background technology
At present, the fish scale lamellar seal is all adopted in known rotary kiln end sealing, is made up of air-cooled cover, diaphragm seal, cone, back-up ring and heat shield liner.Down, cement slurry flows to kiln hood by rotary kiln, is sintered into grog in working order, and kiln hood place blast is lower than the kiln tail, makes secondary wind flow to the kiln tail by kiln hood, and the fish scale lamellar seal is a kind of sealing that prevents that grog from exposing from slit between kiln hood cover and the kiln hood.But existing fish scale chip hermetically-sealed construction form is flap and the air-cooled steel wire of applying mechanically to be strained by weight, the flap installation direction is identical with air flow direction, under the thump that is subjected to high temperature dust gas for a long time, cause flap and air-cooled cover surface progressively to be worn and torn, grey phenomenon is leaked out, is leaked in generation, not only destroyed operating pressure requirement in the kiln, and greatly reduced the service life of fish scale lamellar seal.
Summary of the invention
For overcome existing fish scale lamellar seal can not well stop kiln hood to leak out and leak the ash, the invention provides a kind of compound reverse hermetically-sealed construction of new structure, the compound reverse sealing of this new structure can not only prevent effectively that kiln hood from leaking out and leak ash, and processing and fabricating is simple, and is easy for installation.
The technical solution adopted for the present invention to solve the technical problems is: opposite with airflow direction the flap installation direction, by adjusting the angle that flap withstands shocks, guides wind is to flow trace cleverly, make flap avoid the frontal impact of high temperature dust gas, use simultaneously axial labyrinth seal again, guarantee the effect that seals from both direction axially and radially, the sealing mode can reach the effective seal purpose.
The invention has the beneficial effects as follows, can effectively stop the interior grog ash of kiln and wind by spilling between flap and the sealing shroud, fundamentally solve the problem that rotary kiln leaks out and leaks ash, extended to more than 2 years the service life of this flap and air-cooled cover, and it is simple in structure, easy for installation.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing and example.
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 the position enlarged drawing.
Among Fig. 3: 1. kiln hood cover, 2. hold-down support, 3. seal closure, 4. flap, 5. cone, 6. cylinder of rotary kiln, 7. steel wire rope, 8. sealing shroud.
Among Fig. 5, Fig. 6: 1. air-cooled cover, 2. flap, 3. cone, 4. baffle plate, 5. feather key, 6. kiln hood cover, 7. steel wire rope, 8. counterweight.
The specific embodiment
The flap installation direction is opposite with old-fashioned flap installation direction in Fig. 3, by the screw-button tense wire rope flap is fitted on the sealing shroud, when kiln hood inside is negative pressure with respect to the external world, because steel wire rope is pressed on flap on the sealing shroud, extraneous air is difficult to enter kiln hood inside, when kiln hood inside is malleation with respect to the external world, inner normal pressure with respect to the external world compresses flap, make between flap and the sealing shroud sealing more tight, kiln hood internal gas flow and dust can't be spilt, axial labyrinth seal stops high temperature dust gas frontal impact flap, and the sealing mode can reach efficient sealing effect.
Claims (6)
1. a rotary kiln NEW TYPE OF COMPOSITE oppositely seals, and it is that the flap in original old-fashioned fish scale lamellar seal is oppositely installed, and it is characterized in that: the flap after oppositely installing forms an effective seal form under the double action of steel wire rope and stream pressure.
2. rotary kiln NEW TYPE OF COMPOSITE according to claim 1 oppositely seals, and it is characterized in that: the flap of sealing usefulness is to be 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 the high temperature resistant steel wire rope of steel core.
4. rotary kiln NEW TYPE OF COMPOSITE according to claim 1 oppositely seals, and it is characterized in that: the reverse seal form of rotary kiln end also can be used for the sealing of kiln tail.
5. 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 pyroceram fibre plate.
6. rotary kiln NEW TYPE OF COMPOSITE according to claim 4 oppositely seals, and it is characterized in that: the structure of flap is that the pyroceram fibre plate is installed between the 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 true CN103185454A (en) | 2013-07-03 |
| CN103185454B CN103185454B (en) | 2015-04-15 |
Family
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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) |
Cited By (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 (9)
| 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 |
| CN102889783A (en) * | 2012-11-06 | 2013-01-23 | 大唐国际发电股份有限公司 | Sealing device and rotary kiln |
| 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 |
-
2013
- 2013-04-02 CN CN201310111346.4A patent/CN103185454B/en active Active
Patent Citations (9)
| 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 |
| CN102889783A (en) * | 2012-11-06 | 2013-01-23 | 大唐国际发电股份有限公司 | Sealing device and rotary kiln |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103185454B (en) | 2015-04-15 |
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