CN210399927U - Sealing mechanism for rotary kiln barrel and kiln head cover - Google Patents
Sealing mechanism for rotary kiln barrel and kiln head cover Download PDFInfo
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- CN210399927U CN210399927U CN201920793948.5U CN201920793948U CN210399927U CN 210399927 U CN210399927 U CN 210399927U CN 201920793948 U CN201920793948 U CN 201920793948U CN 210399927 U CN210399927 U CN 210399927U
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- annular plate
- rotary kiln
- kiln
- sealing mechanism
- head cover
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Abstract
The utility model relates to a rotary kiln subassembly, rotary kiln barrel and kiln hood cover sealing mechanism specifically says so. It is characterized by that it includes rotary kiln cylinder body, one end of said rotary kiln cylinder body is covered with kiln head cover. The outer end face of one end of the kiln head cover close to the rotary kiln cylinder is connected with a first annular plate, the inner diameter of the first annular plate is larger than the outer diameter of the rotary kiln cylinder, the outer side wall of the rotary kiln cylinder located outside the kiln head cover is concentrically fixed with a second annular plate, the inner edge of the first annular plate is provided with a fixed labyrinth pipe facing the second annular plate, and the outer edge of the second annular plate is concentrically provided with a movable labyrinth pipe facing the first annular plate. The first annular plate outside the movable labyrinth tube is provided with a supporting tube, one end of the supporting tube far away from the first annular plate is provided with a conical connecting tube, and a conical flexible tube is arranged between the connecting tube and the rotary kiln barrel. The sealing mechanism has the advantages of small air leakage coefficient, large energy consumption and long service life.
Description
Technical Field
The utility model relates to a rotary kiln subassembly, rotary kiln barrel and kiln hood cover sealing mechanism specifically says so.
Background
The rotary kiln is a negative pressure operated thermal device, and cold air is inevitably sucked at the joint of a rotary kiln inlet cylinder and a kiln head cover, so that a sealing device is required to reduce air leakage.
At present, two sealing mechanisms of a rotary kiln cylinder body and a kiln head cover are provided. One is labyrinth type, which mainly comprises a rotary kiln cylinder body, wherein a kiln hood is sleeved at one end of the rotary kiln cylinder body. Be connected with first annular plate on the outer terminal surface of the kiln hood cover one end of being close to the rotary kiln barrel, be concentric the arranging between first annular plate and the rotary kiln barrel, the internal diameter of first annular plate is greater than the external diameter of rotary kiln barrel, be located that the outer lateral wall of the section rotary kiln barrel outside the kiln hood cover is fixed with the second annular plate with one heart, there is the interval second annular plate and first annular plate, and the internal diameter of first annular plate is less than the external diameter of second annular plate, the fixed labyrinth pipe of orientation second annular plate is provided with one heart on the interior border of first annular plate, be provided with the activity labyrinth pipe of orientation first annular plate with one heart on the outer border of second annular plate, the length of fixed labyrinth pipe and activity labyrinth pipe all is less than the distance between first annular plate and the second ring. The sealing mechanism has gaps, and the air leakage coefficient is larger, so that the energy consumption of the rotary kiln is higher. The other type is flexible, which mainly comprises a rotary kiln cylinder body, wherein a kiln hood cover is sleeved at one end of the rotary kiln cylinder body. The outer end face of the kiln head cover end close to the rotary kiln cylinder body is provided with a conical connecting pipe, the end with the large diameter of the connecting pipe is connected with the kiln head cover, a conical flexible pipe is arranged between the connecting pipe and the rotary kiln cylinder body, the end with the large diameter of the flexible pipe is sleeved on the supporting pipe, and the end with the small diameter of the flexible pipe is sleeved on the rotary kiln cylinder body. When the sealing mechanism is used, heat in the rotary kiln cylinder directly acts on the flexible pipe, the heat radiation is large, the damage is easy to occur, and the service life is short.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a rotary kiln barrel and kiln hood cover sealing mechanism, this sealing mechanism's the coefficient of leaking out is little, and the energy consumption is great, and life is longer.
In order to solve the problems, the following technical scheme is provided:
the utility model discloses rotary kiln barrel and kiln hood cover sealing mechanism's characteristics are including the rotary kiln barrel, and a pot head of rotary kiln barrel has the kiln hood cover. Be connected with first annular plate on the outer terminal surface of the kiln hood cover one end of being close to the rotary kiln barrel, be concentric the arranging between first annular plate and the rotary kiln barrel, the internal diameter of first annular plate is greater than the external diameter of rotary kiln barrel, be located that the outer lateral wall of the section rotary kiln barrel outside the kiln hood cover is fixed with the second annular plate with one heart, there is the interval second annular plate and first annular plate, and the internal diameter of first annular plate is less than the external diameter of second annular plate, the fixed labyrinth pipe towards the second annular plate is provided with one heart on the interior border of first annular plate, be provided with the activity labyrinth pipe towards first annular plate with one heart on the outer border of second annular plate, the length of fixed labyrinth pipe and activity labyrinth pipe all is less than the distance between first annular plate and the second ring. The supporting tube is concentrically fixed on the first annular plate outside the movable labyrinth tube, a conical connecting tube is arranged at one end of the supporting tube far away from the first annular plate, the end with the large diameter of the connecting tube is connected with the supporting tube, a conical flexible tube is arranged between the connecting tube and the rotary kiln barrel body, the end with the large diameter of the flexible tube is sleeved on the supporting tube, and the end with the small diameter of the flexible tube is sleeved on the rotary kiln barrel body.
The wall of the flexible pipe sequentially comprises a steel plate layer, a carbon-silicon-aluminum fiber composite layer and a heat-resistant boiler plate layer from outside to inside.
The outer edge of one end of the supporting tube corresponding to the first annular plate is provided with an annular flanging extending outwards in the radial direction, and the annular flanging, the first annular plate and the kiln head cover are connected through bolts.
And a reinforcing rib is arranged between the annular outward flanging and the supporting pipe.
By adopting the scheme, the method has the following advantages:
because the utility model discloses a rotary kiln barrel and kiln hood cover sealing mechanism are in the same place flexible sealing mechanism and labyrinth sealing mechanism combination, install flexible sealing mechanism outside the labyrinth sealing mechanism for whole sealing mechanism has almost no clearance, thereby has reduced the coefficient of leaking out greatly, has reduced the energy consumption of whole rotary kiln. Moreover, the sealing mechanism isolates the flexible pipe by utilizing the palace type sealing mechanism, so that the heat radiation of the flexible pipe is greatly reduced, the flexible pipe cannot deform, and the service life of the whole sealing mechanism is greatly prolonged.
Drawings
Fig. 1 is a schematic structural view of a rotary kiln cylinder and kiln head cover sealing mechanism of the utility model;
fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1 and figure 2, the utility model discloses rotary kiln barrel and kiln hood sealing mechanism include rotary kiln barrel 1, and a pot head of rotary kiln barrel 1 has kiln hood cover 2. Be connected with first annular plate 3 on the outer terminal surface of the kiln hood cover 2 one end of being close to rotary kiln barrel 1, be concentric the arrangement between first annular plate 3 and rotary kiln barrel 1, the internal diameter of first annular plate 3 is greater than the external diameter of rotary kiln barrel 1, be located that the outer lateral wall of kiln hood cover 2 outer section rotary kiln barrel 1 on the concentric second annular plate 10 that is fixed with, there is the interval between second annular plate 10 and first annular plate 3, and the internal diameter of first annular plate 3 is less than the external diameter of second annular plate 10, be provided with the fixed labyrinth pipe 12 towards second annular plate 10 on the inner border of first annular plate 3 with one heart, be provided with the activity labyrinth pipe 11 towards first annular plate 3 on the outer border of second annular plate 10 with one heart, the length of fixed labyrinth pipe 12 and activity labyrinth pipe 11 all is less than the distance between first annular plate 3 and the second annular. The supporting tube 7 is concentrically fixed on the first annular plate 3 outside the movable labyrinth tube 11, a conical connecting tube 8 is arranged at one end of the supporting tube 7 far away from the first annular plate 3, the end with the large diameter of the connecting tube 8 is connected with the supporting tube 7, a conical flexible tube 9 is arranged between the connecting tube 8 and the rotary kiln barrel body 1, the end with the large diameter of the flexible tube 9 is sleeved on the supporting tube 7, and the end with the small diameter of the flexible tube 9 is sleeved on the rotary kiln barrel body 1. The wall of the flexible pipe 9 sequentially comprises a steel plate layer 901, a carbon-silicon-aluminum fiber composite layer 902 and a heat-resistant boiler plate layer 903 from outside to inside. The outer edge of one end of the supporting pipe 7 corresponding to the first annular plate 3 is provided with an annular flanging 4 which extends outwards in the radial direction, and the annular flanging 4, the first annular plate 3 and the kiln head cover 2 are connected through bolts 5. And a reinforcing rib 6 is arranged between the annular outward flange 4 and the supporting tube 7.
The utility model discloses a rotary kiln barrel and kiln hood cover sealing mechanism are in the same place flexible sealing mechanism and labyrinth sealing mechanism combination, install flexible sealing mechanism outside the labyrinth sealing mechanism for whole sealing mechanism has almost no clearance, thereby has reduced the coefficient of leaking out greatly, has reduced the energy consumption of whole rotary kiln. Moreover, the sealing mechanism isolates the flexible tube 9 by utilizing the palace type sealing mechanism, so that the heat radiation of the flexible tube 9 is greatly reduced, the flexible tube 9 cannot deform, and the service life of the whole sealing mechanism is greatly prolonged.
Claims (4)
1. The rotary kiln cylinder and kiln hood sealing mechanism is characterized by comprising a rotary kiln cylinder (1), wherein a kiln hood cover (2) is sleeved at one end of the rotary kiln cylinder (1); a first annular plate (3) is connected to the outer end face of one end of a kiln head cover (2) close to a rotary kiln cylinder body (1), the first annular plate (3) and the rotary kiln cylinder body (1) are concentrically arranged, the inner diameter of the first annular plate (3) is larger than the outer diameter of the rotary kiln cylinder body (1), a second annular plate (10) is concentrically fixed to the outer side wall of the section of rotary kiln cylinder body (1) outside the kiln head cover (2), a distance is reserved between the second annular plate (10) and the first annular plate (3), the inner diameter of the first annular plate (3) is smaller than the outer diameter of the second annular plate (10), a fixed labyrinth pipe (12) facing the second annular plate (10) is concentrically arranged on the inner edge of the first annular plate (3), a movable labyrinth pipe (11) facing the first annular plate (3) is concentrically arranged on the outer edge of the second annular plate (10), and the lengths of the fixed labyrinth pipe (12) and the movable labyrinth pipe (11) are smaller than the distance between the first annular plate (3) and the first annular plate; supporting tube (7) is concentrically fixed on first annular plate (3) in activity labyrinth pipe (11) outside, and the supporting tube (7) one end of keeping away from first annular plate (3) is served and is had conical connecting pipe (8), and that one end that connecting pipe (8) diameter is big links to each other with supporting tube (7), has conical flexible pipe (9) between connecting pipe (8) and rotary kiln barrel (1), and that one end cover that flexible pipe (9) diameter is big is on supporting tube (7), and that one end cover that flexible pipe (9) diameter is little is on rotary kiln barrel (1).
2. The sealing mechanism for the cylinder body and the kiln head cover of the rotary kiln as claimed in claim 1, characterized in that the cylinder wall of the flexible pipe (9) comprises a steel plate layer (901), a carbon-silicon-aluminum fiber composite layer (902) and a heat-resistant boiler plate layer (903) in sequence from outside to inside.
3. The sealing mechanism for the cylinder body and the kiln head cover of the rotary kiln as claimed in claim 1 or 2, characterized in that the outer edge of one end of the supporting tube (7) corresponding to the first annular plate (3) is provided with an annular flanging (4) which extends outwards in the radial direction, and the annular flanging (4), the first annular plate (3) and the kiln head cover (2) are connected through bolts (5).
4. A rotary kiln cylinder and kiln head cover sealing mechanism as claimed in claim 3, characterized in that a reinforcing rib (6) is arranged between the annular flanging (4) and the supporting tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920793948.5U CN210399927U (en) | 2019-05-31 | 2019-05-31 | Sealing mechanism for rotary kiln barrel and kiln head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920793948.5U CN210399927U (en) | 2019-05-31 | 2019-05-31 | Sealing mechanism for rotary kiln barrel and kiln head cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210399927U true CN210399927U (en) | 2020-04-24 |
Family
ID=70347184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920793948.5U Active CN210399927U (en) | 2019-05-31 | 2019-05-31 | Sealing mechanism for rotary kiln barrel and kiln head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210399927U (en) |
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2019
- 2019-05-31 CN CN201920793948.5U patent/CN210399927U/en active Active
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