CN217737867U - Rotary kiln sealing structure - Google Patents
Rotary kiln sealing structure Download PDFInfo
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- CN217737867U CN217737867U CN202221878383.9U CN202221878383U CN217737867U CN 217737867 U CN217737867 U CN 217737867U CN 202221878383 U CN202221878383 U CN 202221878383U CN 217737867 U CN217737867 U CN 217737867U
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- barrel
- sealed
- kiln
- fish scale
- seal structure
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- 238000007789 sealing Methods 0.000 title claims description 52
- 241000251468 Actinopterygii Species 0.000 claims abstract description 45
- 239000000428 dust Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000005452 bending Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model provides a sealed better rotary kiln seal structure of effect to solve rotary kiln problem in leaking out, the impurity easily enters the barrel, relate to the rotary kiln and seal technical field. Rotary kiln seal structure, including the barrel and with barrel tip complex kiln hood, fish scale formula seal structure, labyrinth seal structure have set gradually between barrel and the kiln hood, fish scale formula seal structure includes that the multi-disc winds barrel overlap joint's sealed flake in proper order, the one end and the kiln hood of sealed flake are connected, and the other end is sealed with the barrel contact, states and is equipped with the spring that compresses tightly sealed flake on the barrel between sealed flake and the kiln hood, the one end and the sealed flake of spring are connected the other end and are connected with the kiln hood.
Description
Technical Field
The utility model relates to a rotary kiln seals technical field, concretely relates to rotary kiln seal structure.
Background
The rotary kiln is a negative pressure super-working thermal equipment, is commonly used in chemical production, and mainly comprises a cylinder body and kiln covers arranged at two ends of the cylinder body and matched with the cylinder body. The kiln hood is fixed on the support, the cylinder is arranged on the riding wheel, and because the rotary cylinder and the kiln hood at the tail of the stationary kiln head and the kiln hood rotate relatively, a sealing structure must be arranged between the cylinder and the kiln hood to prevent cold air and abraded impurities from entering the cylinder.
At present, a simple packing seal or labyrinth seal structure or fish scale seal structure is mainly adopted between a rotary kiln cylinder body and a kiln cover, and the sealing effect of the existing seal structure is not ideal due to the fact that the cylinder body has the factors of expansion with heat and contraction with cold, play, bending, radial run-out and the like, and the problems of air leakage and impurity entering the cylinder body exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a rotary kiln seal structure that sealed effect is better is provided to solve rotary kiln problem in leaking out, impurity easily enters the barrel.
The utility model provides a technical scheme that its technical problem adopted is: rotary kiln seal structure, including the barrel and with barrel tip complex kiln hood, fish scale formula seal structure, labyrinth seal structure have set gradually between barrel and the kiln hood, fish scale formula seal structure includes that the multi-disc winds barrel overlap joint's sealed flake in proper order, the one end and the kiln hood of sealed flake are connected, and the other end is sealed with the barrel contact, states and is equipped with the spring that compresses tightly sealed flake on the barrel between sealed flake and the kiln hood, the one end and the sealed flake of spring are connected the other end and are connected with the kiln hood.
Furthermore, a screw rod for adjusting the pressing force of the spring is arranged on the kiln hood, one end of the screw rod is in threaded connection with the kiln hood, and the other end of the screw rod is connected with the spring.
Further, the tip cover of barrel is equipped with rather than the urceolus of coaxial line, be equipped with the clearance between urceolus and the barrel, the urceolus is towards kiln hood's one end and barrel sealing connection, the other end of sealed fish scale passes through the urceolus and the barrel contact is sealed.
Furthermore, a wear-resistant ring is fixedly arranged on the outer barrel, and the other end of the sealing fish scale is in contact sealing with the wear-resistant ring.
Further, the wear-resistant ring is a graphite ring.
Furthermore, the end of the cylinder body is provided with a dust guard plate, and the dust guard plate is arranged on the inner side of the labyrinth seal structure.
The utility model has the advantages that:
the rotary kiln sealing structure of the utility model is provided with the fish scale type sealing structure and the labyrinth type sealing structure between the cylinder body and the kiln hood in sequence, the double-layer sealing structure has good sealing effect, and the problems of air leakage and impurities entering the cylinder body caused by factors such as expansion with heat and contraction with cold, play, bending, radial run-out and the like of the cylinder body are greatly reduced;
the sealing fish scale of the fish scale type sealing structure is provided with the spring which can enable the sealing fish scale to be tightly pressed on the cylinder body, the spring can enable the sealing fish scale and the cylinder body to be always in close contact, and the sealing performance between the fish scale type sealing structure and the cylinder body and the kiln cover can be further improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
shown in the figure: the device comprises a barrel 1, a kiln hood 2, a labyrinth seal structure 3, seal fish scales 4, a spring 5, a screw 6, an outer barrel 7, a dust baffle plate 11, an L-shaped support 21, a wear-resistant ring 71 and an end plate 72.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the utility model discloses a rotary kiln seal structure, including barrel 1 and with barrel tip complex kiln hood 2, fish scale formula seal structure, labyrinth seal structure 3 have set gradually between barrel 1 and the kiln hood 2, fish scale formula seal structure includes that the multi-disc winds barrel 1 lapped sealed flake 4 in proper order, the one end and the kiln hood 2 of sealed flake 4 are connected, and the other end is sealed with barrel 1 contact, be equipped with between sealed flake 4 and the kiln hood 2 and compress tightly the spring 5 on barrel 1 with sealed flake 4, the one end and the sealed flake 4 of spring 5 are connected the other end and are connected with kiln hood 2.
The sealing fish scale 4 can be a metal sheet or a plastic sheet with certain elastic deformation capacity. The sealing fish scale 4 can be arranged on the kiln hood 2 by adopting welding, bolt connection and other modes.
In order to facilitate the installation of the spring 5, in particular, the spring 5 is connected with the kiln hood 2 through an L-shaped bracket 21 arranged outside the sealing fish scale 4.
The utility model discloses a rotary kiln seal structure has set gradually fish scale formula seal structure, labyrinth seal structure 3 between barrel and kiln cover, and fish scale formula seal structure carries out preliminary sealing, labyrinth seal structure and then secondary seal, and labyrinth seal structure is non-contact sealed, and the friction dust that fish scale formula seal structure produced is difficult for passing through labyrinth seal structure. The double-layer sealing structure is good in sealing effect, and the problems that air leakage and impurities can enter the barrel body due to factors such as expansion with heat and contraction with cold, play, bending and radial run-out of the barrel body are greatly reduced. In addition, the sealing fish scale 4 of the fish scale type sealing structure is provided with the spring 5 which can enable the sealing fish scale to be tightly pressed on the cylinder body 1, when the cylinder body has thermal expansion and cold contraction, play, bending and radial jumping, the spring 5 can enable the sealing fish scale 4 and the cylinder body 1 to be always kept in close contact, and the sealing performance between the fish scale type sealing structure and the cylinder body and the kiln cover can be further improved.
If the negative pressure in the rotary kiln barrel is larger, in order to ensure the sealing effect, the contact pressure between the sealing fish scale 4 and the barrel 1 is correspondingly larger, however, the contact pressure between the sealing fish scale 4 and the barrel 1 is larger, and the rotation resistance of the barrel is also larger. In order to adjust the contact pressure between the sealing fish scales 4 and the cylinder body 1 within a proper range according to actual conditions, a screw 6 for adjusting the pressing force of a spring 5 is arranged on the kiln hood 2, one end of the screw 6 is in threaded connection with the kiln hood 2, and the other end of the screw is connected with the spring 5. Thus, the spring 5 can be extended or shortened by rotating the screw rod 6, so that the elastic force of the spring acting on the sealing fish scale 4 can be adjusted, and the contact pressure between the sealing fish scale 4 and the cylinder 1 can be adjusted.
Because the surface temperature of the rotary kiln cylinder is usually higher when the rotary kiln cylinder works, if the sealing fish scale 4 is directly contacted and sealed with the cylinder 1, high temperature is easily transferred to the sealing fish scale 4, the sealing fish scale 4 is accelerated to be worn, and the sealing effect is influenced. For this purpose, further, the end cover of barrel 1 is equipped with outer cylinder 7 coaxial with it, be equipped with the clearance between outer cylinder 7 and the barrel 1, the outer cylinder 7 is connected with barrel 1 through end plate 72 seal towards kiln cover 2's one end, the other end of sealed flake 4 and outer cylinder 7 contact seal, thus through outer cylinder 7 and barrel 1 contact seal. So, clearance and outside air intercommunication between urceolus 7 and the barrel 1, thereby the air can be better with urceolus 7 contact cooling urceolus 7, the temperature of urceolus is lower, the temperature of barrel is difficult for transmitting to sealed flake 4 on, can reduce the wearing and tearing of sealed flake 4, improves its life and sealed effect.
Specifically, one end of the end plate 72 may be welded to the cylinder 1, and the other end may be welded to the outer cylinder 7, so that the outer cylinder 7 is hermetically connected to the cylinder 1.
In order to prevent the outer cylinder 7 from being seriously worn to affect the sealing effect, a wear-resistant ring 71 is further fixedly arranged on the outer cylinder 7, and the other end of the sealing fish scale 4 is in contact sealing with the wear-resistant ring 71. Wear-resisting ring 71 adopts wear-resisting material, the embodiment of the utility model provides an adopt the graphite ring. In other embodiments, the wear ring 71 is made of ceramic, alloy steel, or the like.
In order to further prevent dust from entering the cylinder, as shown in fig. 3, a dust baffle plate 11 is arranged at the end of the cylinder 1, the dust baffle plate 11 is annular, and the dust baffle plate 11 is arranged on the inner side of the labyrinth seal structure 3.
Claims (6)
1. Rotary kiln seal structure, including barrel (1) and with barrel tip complex kiln hood (2), its characterized in that: a fish scale type sealing structure and a labyrinth type sealing structure (3) are sequentially arranged between the barrel body (1) and the kiln hood (2), the fish scale type sealing structure comprises a plurality of sealing fish scales (4) which are sequentially overlapped around the barrel body (1), one end of each sealing fish scale (4) is connected with the kiln hood (2), the other end is sealed with barrel (1) contact, be equipped with between sealed fish scale (4) and kiln hood (2) and compress tightly spring (5) on barrel (1) with sealed fish scale (4), the one end and sealed fish scale (4) of spring (5) are connected the other end and are connected with kiln hood (2).
2. The rotary kiln seal structure as claimed in claim 1, characterized in that: the kiln hood is characterized in that a screw rod (6) used for adjusting pressing force of the spring (5) is arranged on the kiln hood (2), one end of the screw rod (6) is in threaded connection with the kiln hood (2), and the other end of the screw rod is connected with the spring (5).
3. The rotary kiln seal structure as claimed in claim 1, characterized in that: the tip cover of barrel (1) is equipped with urceolus (7) rather than the coaxial line, be equipped with the clearance between urceolus (7) and barrel (1), urceolus (7) are towards the one end and barrel (1) sealing connection of kiln cover (2), the other end of sealed fish scale (4) passes through urceolus (7) and barrel (1) contact is sealed.
4. The rotary kiln seal structure as claimed in claim 3, characterized in that: and a wear-resistant ring (71) is fixedly arranged on the outer barrel (7), and the other end of the sealing fish scale (4) is in contact sealing with the wear-resistant ring (71).
5. The rotary kiln seal structure as claimed in claim 4, characterized in that: the wear-resistant ring (71) is a graphite ring.
6. The rotary kiln sealing structure as claimed in claim 1, characterized in that: the end of the cylinder body (1) is provided with a dust guard plate (11), and the dust guard plate (11) is arranged on the inner side of the labyrinth seal structure (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221878383.9U CN217737867U (en) | 2022-07-20 | 2022-07-20 | Rotary kiln sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221878383.9U CN217737867U (en) | 2022-07-20 | 2022-07-20 | Rotary kiln sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217737867U true CN217737867U (en) | 2022-11-04 |
Family
ID=83850041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221878383.9U Active CN217737867U (en) | 2022-07-20 | 2022-07-20 | Rotary kiln sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217737867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117006836A (en) * | 2023-08-02 | 2023-11-07 | 浙江物华天宝能源环保有限公司 | Rotary kiln head device and sealing method |
-
2022
- 2022-07-20 CN CN202221878383.9U patent/CN217737867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117006836A (en) * | 2023-08-02 | 2023-11-07 | 浙江物华天宝能源环保有限公司 | Rotary kiln head device and sealing method |
| CN117006836B (en) * | 2023-08-02 | 2026-08-11 | 浙江物华天宝能源环保有限公司 | Rotary kiln head device and sealing method |
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