CN203053211U - Rotary kiln - Google Patents
Rotary kiln Download PDFInfo
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- CN203053211U CN203053211U CN 201320046685 CN201320046685U CN203053211U CN 203053211 U CN203053211 U CN 203053211U CN 201320046685 CN201320046685 CN 201320046685 CN 201320046685 U CN201320046685 U CN 201320046685U CN 203053211 U CN203053211 U CN 203053211U
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- sealing
- drum cover
- sealing drum
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Abstract
The utility model provides a rotary kiln which comprises a cylinder body, a kiln head cover and a kiln tail cover, wherein the kiln head cover and the kiln tail cover are respectively connected with the two ends of the cylinder body. The rotary kiln further comprises a sealing device. The sealing device comprises a first sealing cylinder cover and/ or a second sealing cylinder cover, wherein a first end of the first sealing cylinder cover is connected on the outer wall of the kiln head cover through a first connecting structure, a second end of the first sealing cylinder cover is connected on the cylinder body through a second connecting structure, one of the first connecting structure and the second connecting structure at two ends of the first sealing cylinder cover is a fixed connecting structure, the other one of the first connecting structure and the second connecting structure at two ends of the first sealing cylinder cover is a dynamic sealing structure, a first end of the second sealing cylinder cover is connected with the outer wall of the kiln tail cover through a first connecting structure, a second end of the second sealing cylinder cover is connected on the cylinder body through a second connecting structure, one of the first connecting structure and the second connecting structure at two ends of the second sealing cylinder cover is a fixed connecting structure, and the other one of the first connecting structure and the second connecting structure at two ends of the second sealing cylinder cover is a dynamic sealing structure. The rotary kiln solves the problems that air outside the rotary kiln enters the cylinder body of the rotary kiln and materials are leaked due to the fact that air inside the cylinder body of the rotary kiln carries materials.
Description
Technical field
The utility model relates to the Thermal Equipment technical field, in particular to a kind of rotary kiln.
Background technology
Rotary kiln is the important Thermal Equipment of alumina producer, cement plant and other chemical metallurgy.Rotary kiln comprises cylindrical shell and is separately fixed at kiln hood cover, the kiln hood at cylindrical shell two ends, has the slit inevitably between kiln hood cover or kiln hood and the cylindrical shell.When the rotary kiln negative-pressure operation, external air pressure enters in the cylindrical shell of rotary kiln than conference, causes flammable materials burning or deterioration in quality in the kiln; When the rotary kiln positive pressure operation, can cause the interior material of cylindrical shell of rotary kiln to be attacked in retaliation, dust spills in cylindrical shell, directly influences production safety.
The utility model content
The utility model aims to provide a kind of rotary kiln, with solve rotary kiln in the prior art in the course of the work extraneous air enter in the cylindrical shell of rotary kiln and in the cylinder of rotary kiln gas carry the problem that material is revealed.
To achieve these goals, the utility model provides a kind of rotary kiln, comprise cylindrical shell, kiln hood cover and kiln hood, kiln hood cover and kiln hood are connected to the two ends of cylindrical shell, rotary kiln also comprises sealing device, sealing device comprises the first sealing drum cover and/or the second sealing drum cover, first end of the first sealing drum cover is connected on the outer wall of kiln hood cover by first syndeton, second end is connected on the cylindrical shell by second syndeton, one of first syndeton at the first sealing drum cover two ends and second syndeton are fixed connection structure, and another is movable sealing structure; First end of the second sealing drum cover is connected on the outer wall of kiln hood by first syndeton, second end is connected on the cylindrical shell by second syndeton, one of first syndeton at the second sealing drum cover two ends and second syndeton are fixed connection structure, and another is movable sealing structure.
Further, first sealing drum is covered with and is equipped with first air inlet and first gas outlet, and second sealing drum is covered with and is equipped with second air inlet and second gas outlet.
Further, first syndeton of the first sealing drum cover is that fixed connection structure, second syndeton are movable sealing structure; First syndeton of the second sealing drum cover is that fixed connection structure, second syndeton are movable sealing structure.
Further, sealing device comprises the first sealing drum cover and the second sealing drum cover, and sealing device also comprises: the 3rd sealing drum cover, first end of the 3rd sealing drum cover are fixedly connected on the outer wall of the first sealing drum cover, the second end movable sealing is connected on the cylindrical shell; The 4th sealing drum cover, first end of the 4th sealing drum cover is fixedly connected on the outer wall of the second sealing drum cover, the second end movable sealing is connected on the cylindrical shell, be used for charging into inert gas in the first sealing drum cover and the second sealing drum cover, the 3rd sealing drum cover and the 4th sealing drum cover are used for charging into air, air pressure in the 3rd sealing drum cover is greater than the inert gas pressure in the first sealing drum cover, and the air pressure in the 4th sealing drum cover is greater than the inert gas pressure in the second sealing drum cover.
Further, the 3rd sealing drum cover is provided with the 3rd air inlet and the 3rd gas outlet, and the 4th sealing drum is covered with and is equipped with the 4th air inlet and the 4th gas outlet.
Further, sealing device is provided with pressure tester.
Further, the kiln hood cover is connected with the cylindrical shell movable sealing with the kiln hood.
Further, movable sealing structure is nested construction.
Use the technical solution of the utility model, rotary kiln, comprise cylindrical shell, kiln hood cover and kiln hood, kiln hood cover and kiln hood are connected to the two ends of cylindrical shell, rotary kiln also comprises sealing device, sealing device comprises the first sealing drum cover and/or the second sealing drum cover, first end of the first sealing drum cover is connected on the outer wall of kiln hood cover by first syndeton, second end is connected on the cylindrical shell by second syndeton, one of first syndeton at the first sealing drum cover two ends and second syndeton are fixed connection structure, and another is movable sealing structure; First end of the second sealing drum cover is connected on the outer wall of kiln hood by first syndeton, second end is connected on the cylindrical shell by second syndeton, one of first syndeton at the second sealing drum cover two ends and second syndeton are fixed connection structure, and another is movable sealing structure.The first seal closure tube of rotary kiln is used for the slit between sealing kiln hood cover and the cylindrical shell, the second seal closure tube of rotary kiln is used for the slit between sealing kiln tail and the cylindrical shell, like this during the rotary kiln negative-pressure operation, under the sealing function of sealing device, air can directly not enter in the cylindrical shell of rotary kiln by the slit, during positive pressure operation, dust spills and at first enters sealing device.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment of rotary kiln of the present utility model.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The utility model provides a kind of embodiment of rotary kiln, specifically referring to Fig. 1, the rotary kiln of present embodiment, comprise cylindrical shell 10, kiln hood cover 20 and kiln hood 30, kiln hood cover 20 and kiln hood 30 are connected to the two ends of cylindrical shell 10, rotary kiln also comprises sealing device, sealing device comprises the first sealing drum cover 40 and the second sealing drum cover 50, first end of the first sealing drum cover 40 is connected on the outer wall of kiln hood cover 20 by first syndeton, second end is connected on the cylindrical shell 10 by second syndeton, one of first syndeton at the first sealing drum cover, 40 two ends and second syndeton are fixed connection structure, and another is movable sealing structure; First end of the second sealing drum cover 50 is connected on the outer wall of kiln hood 30 by first syndeton, second end is connected on the cylindrical shell 10 by second syndeton, and first syndeton of the first sealing drum cover 40 is that fixed connection structure, second syndeton are movable sealing structure; First syndeton of the second sealing drum cover 50 is that fixed connection structure, second syndeton are movable sealing structure, and movable sealing structure is nested construction.
The first seal closure tube of rotary kiln is used for the slit between sealing kiln hood cover and the cylindrical shell, the second seal closure tube of rotary kiln is used for the slit between sealing kiln tail and the cylindrical shell, like this during the rotary kiln negative-pressure operation, under the sealing function of sealing device, air can directly not enter in the cylindrical shell of rotary kiln by the slit, during the superpressure operation, dust at first is splashed into sealing device.
Present embodiment further preferably, sealing device also comprises the 3rd sealing drum cover 60 and the 4th sealing drum cover 70, first end of the 3rd sealing drum cover 60 is fixedly connected on the outer wall of the first sealing drum cover 40, the second end movable sealing is connected on the cylindrical shell 10, first end of the 4th sealing drum cover 70 is fixedly connected on the outer wall of the second sealing drum cover 50, the second end movable sealing is connected on the cylindrical shell 10, in addition, kiln hood cover 20 is connected with cylindrical shell 10 movable sealings with kiln hood 30.Wherein, the 3rd sealing drum cover 60 is used for the first sealing drum cover 40 is sealed, and the 4th sealing drum cover 70 is used for the second sealing drum cover 50 and seals, and realization is multi-sealed to cylinder of rotary kiln, has improved sealing effectiveness.
The first sealing drum cover 40 is provided with first air inlet 41 and first gas outlet 42, the second sealing drum cover 50 is provided with second air inlet 51 and second gas outlet 52, the 3rd sealing drum cover 60 is provided with the 3rd air inlet 61 and the 3rd gas outlet 62, the 4th sealing drum cover 70 is provided with the 4th air inlet 71 and the 4th gas outlet 72, and sealing device is provided with pressure measuring and regulating device 80.
Charge into inert gas in the first sealing drum cover in the present embodiment and the second sealing drum cover, the 3rd sealing drum cover and the 4th sealing drum cover charge into air, by utilizing in the pressure tester 80 monitoring cylinder of rotary kiln, the first sealing drum cover, the second sealing drum cover, the force value of gas in the 3rd sealing drum cover and the 4th sealing drum cover, and in conjunction with the air inlet that arranges and gas outlet regulate in the cylindrical shell with the sealing drum cover between pressure make each force value maintenance basically identical, reduce the gas pressure difference that bear sealing drum cover both sides so effectively, and then form multiple efficient sealedly, improved sealing effectiveness.When seal is damaged, can get gas by regulating the gas outlet that arranges, gas in the seal closure is carried out emptying.
Preferably, the inert gas pressure in the first sealing drum cover and the second sealing drum cover is slightly larger than the gas pressure in the cylindrical shell, prevents that like this gas leak and the outside air in the cylindrical shell from entering in the kiln; The air pressure of the 3rd sealing drum cover is slightly larger than the inert gas pressure in the first sealing drum cover, air pressure in the 4th sealing drum cover is slightly larger than the inert gas pressure in the second sealing drum cover, prevents from like this that inert gas from leaking in a large number to threaten operator safety.
In unshowned other the embodiment of the utility model, be with the difference of above-described embodiment: the Sealing of Rotary Kiln device includes only the first sealing drum cover 40 and the 3rd sealing drum cover 60, and perhaps rotary seal includes only the second sealing drum cover 50 and the 4th sealing drum cover 70.These embodiment all can solve rotary kiln in the prior art in the course of the work extraneous air enter in the cylindrical shell of rotary kiln or in the cylinder of rotary kiln gas carry the problem that material is revealed, reach the effect that seals to rotary kiln.And the embodiment shown in the utility model Fig. 1 is most preferred embodiment.
In the unshowned embodiment of another kind, rotary kiln comprises cylindrical shell, kiln hood cover and kiln hood, kiln hood cover and kiln hood are connected to the two ends of cylindrical shell, rotary kiln also comprises sealing device, sealing device comprises the first sealing drum cover and the second sealing drum cover, first end of the first sealing drum cover is connected on the outer wall of kiln hood cover by first syndeton, second end is connected on the cylindrical shell by second syndeton, one of first syndeton at the first sealing drum cover two ends and second syndeton are fixed connection structure, another is connected on the outer wall of kiln hood for first end of the movable sealing structure second sealing drum cover by first syndeton, second end is connected on the cylindrical shell by second syndeton, wherein, first syndeton of the first sealing drum cover is movable sealing structure, second syndeton is fixed connection structure; First syndeton of the second sealing drum cover is that movable sealing structure, second syndeton are fixed connection structure, and movable sealing structure is nested construction.
Among this embodiment, the first sealing drum cover and the second sealing drum cover and cylindrical shell rotate jointly, for movable sealing is connected, also are connected for movable sealing between the second sealing drum cover and the kiln hood between the first sealing drum cover and the kiln hood cover.The technical pattern of present embodiment is identical with the technique effect of the above embodiments, repeats no more herein.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. rotary kiln, comprise cylindrical shell (10), kiln hood cover (20) and kiln hood (30), described kiln hood cover (20) and described kiln hood (30) are connected to the two ends of described cylindrical shell (10), it is characterized in that, described rotary kiln also comprises sealing device, described sealing device comprises the first sealing drum cover (40) and/or the second sealing drum cover (50)
First end of the described first sealing drum cover (40) is connected on the outer wall of described kiln hood cover (20) by first syndeton, second end is connected on the described cylindrical shell (10) by second syndeton, one of first syndeton at described first sealing drum cover (40) two ends and second syndeton are fixed connection structure, and another is movable sealing structure;
First end of the described second sealing drum cover (50) is connected on the outer wall of described kiln hood (30) by first syndeton, second end is connected on the described cylindrical shell (10) by second syndeton, one of first syndeton at described second sealing drum cover (50) two ends and second syndeton are fixed connection structure, and another is movable sealing structure.
2. rotary kiln according to claim 1, it is characterized in that, the described first sealing drum cover (40) is provided with first air inlet (41) and first gas outlet (42), and the described second sealing drum cover (50) is provided with second air inlet (51) and second gas outlet (52).
3. rotary kiln according to claim 1 is characterized in that, first syndeton of the described first sealing drum cover (40) is that fixed connection structure, second syndeton are movable sealing structure; First syndeton of the described second sealing drum cover (50) is that fixed connection structure, second syndeton are movable sealing structure.
4. rotary kiln according to claim 1 is characterized in that, described sealing device comprises the first sealing drum cover (40) and the second sealing drum cover (50), and described sealing device also comprises:
The 3rd sealing drum cover (60), first end of described the 3rd sealing drum cover (60) are fixedly connected on the outer wall of the described first sealing drum cover (40), the second end movable sealing is connected on the described cylindrical shell (10);
The 4th sealing drum cover (70), first end of described the 4th sealing drum cover (70) is fixedly connected on the outer wall of the described second sealing drum cover (50), the second end movable sealing is connected on the described cylindrical shell (10), be used for charging into inert gas in the described first sealing drum cover (40) and the described second sealing drum cover (50), described the 3rd sealing drum cover (60) and described the 4th sealing drum cover (70) are used for charging into air, air pressure in described the 3rd sealing drum cover (60) is greater than the inert gas pressure in the described first sealing drum cover (40), and the air pressure in described the 4th sealing drum cover (70) is greater than the inert gas pressure in the described second sealing drum cover (50).
5. rotary kiln according to claim 4, it is characterized in that, described the 3rd sealing drum cover (60) is provided with the 3rd air inlet (61) and the 3rd gas outlet (62), and described the 4th sealing drum cover (70) is provided with the 4th air inlet (71) and the 4th gas outlet (72).
6. rotary kiln according to claim 4 is characterized in that, described sealing device is provided with pressure tester (80).
7. rotary kiln according to claim 1 is characterized in that, described kiln hood cover (20) is connected with described cylindrical shell (10) movable sealing with described kiln hood (30).
8. rotary kiln according to claim 1 is characterized in that, described movable sealing structure is nested construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046685 CN203053211U (en) | 2013-01-28 | 2013-01-28 | Rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046685 CN203053211U (en) | 2013-01-28 | 2013-01-28 | Rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053211U true CN203053211U (en) | 2013-07-10 |
Family
ID=48736158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320046685 Withdrawn - After Issue CN203053211U (en) | 2013-01-28 | 2013-01-28 | Rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203053211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063016A (en) * | 2013-01-28 | 2013-04-24 | 神华集团有限责任公司 | Rotary kiln |
-
2013
- 2013-01-28 CN CN 201320046685 patent/CN203053211U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063016A (en) * | 2013-01-28 | 2013-04-24 | 神华集团有限责任公司 | Rotary kiln |
| CN103063016B (en) * | 2013-01-28 | 2015-04-08 | 神华集团有限责任公司 | Rotary kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130710 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |