CN220288251U - Expansion structure of smoke exhaust pipeline and roller kiln - Google Patents
Expansion structure of smoke exhaust pipeline and roller kiln Download PDFInfo
- Publication number
- CN220288251U CN220288251U CN202321144380.7U CN202321144380U CN220288251U CN 220288251 U CN220288251 U CN 220288251U CN 202321144380 U CN202321144380 U CN 202321144380U CN 220288251 U CN220288251 U CN 220288251U
- Authority
- CN
- China
- Prior art keywords
- smoke exhaust
- exhaust pipe
- smoke
- expansion
- expansion joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 132
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000571 coke Substances 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 description 20
- 230000008859 change Effects 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model discloses an expansion structure of a smoke exhaust pipeline and a roller kiln, wherein the expansion structure comprises a first smoke exhaust pipe, a second smoke exhaust pipe and an expansion joint, the front end of the first smoke exhaust pipe is embedded into a first notch of a first side face of the expansion joint, the rear end of the second smoke exhaust pipe is embedded into a second notch of a second side face of the expansion joint, and the inner cavities of the first smoke exhaust pipe, the second smoke exhaust pipe and the expansion joint are communicated.
Description
Technical Field
The utility model belongs to the technical field of smoke exhaust pipelines of roller kilns, and particularly relates to an expansion structure of a smoke exhaust pipeline and a roller kiln.
Background
The roller kiln is a continuous kiln, and can be divided into three parts of a heating section, a constant temperature section and a cooling section by arranging different temperature areas. The exhaust system of the roller kiln is mainly used for discharging reaction waste gas, volatile matters and the like of sintered materials in a heating section, and in the running process of the roller kiln, high-temperature smoke passes through smoke outlets of all temperature areas, is converged in a smoke discharging main pipe, and is finally discharged by a smoke discharging fan after passing through an incinerator.
The existing first type of connection mode between main smoke discharging pipes is shown in figure 1, wherein 1 is a smoke discharging pipe a,2 is a smoke discharging pipe b,3 is a screw nut, 4 is a sealing gasket, the smoke discharging pipe a and the smoke discharging pipe b are connected through flanges, the sealing gasket is arranged between the flanges, and the sealing gasket is locked and sealed through the screw nut; during operation, the main pipeline of the smoke exhaust fan is used for exhausting high-temperature smoke, the high-temperature smoke passes through the smoke exhaust pipeline and expands through the pipeline, the problem of dimensional change caused by expansion cannot be counteracted by the connection mode, and the problem of tar leakage exists at the flange connection position.
The existing connection mode between the second smoke discharging main pipes is shown in figure 2, wherein a smoke discharging pipe a and a smoke discharging pipe b are 1 and 2, the smoke discharging pipe a and the smoke discharging pipe b are connected by using flanges, and the flanges are continuously welded; during operation, the main pipeline of the smoke exhaust fan is used for exhausting high-temperature smoke, the high-temperature smoke passes through the smoke exhaust pipeline, the problem of tar leakage is avoided due to pipeline expansion, and the problem that the expansion amount cannot be offset due to pipeline expansion still exists.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an expansion structure of a smoke exhaust pipeline and a roller kiln, wherein the expansion structure of the smoke exhaust pipeline counteracts the dimensional change of the pipeline caused by expansion and effectively avoids the problem of tar leakage.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an expansion structure of a smoke exhaust pipeline, which comprises a first smoke exhaust pipe, a second smoke exhaust pipe and an expansion joint, wherein the front end of the first smoke exhaust pipe is embedded into a first notch on the first side surface of the expansion joint, the rear end of the second smoke exhaust pipe is embedded into a second notch on the second side surface of the expansion joint, and the inner cavities of the first smoke exhaust pipe, the second smoke exhaust pipe and the expansion joint are communicated.
Compared with the prior art, the expansion structure of the smoke exhaust pipeline comprises the first smoke exhaust pipe, the second smoke exhaust pipe and the expansion joint, wherein the front end of the first smoke exhaust pipe is embedded into the first notch of the first side face of the expansion joint, the rear end of the second smoke exhaust pipe is embedded into the second notch of the second side face of the expansion joint, and the inner cavities of the first smoke exhaust pipe, the second smoke exhaust pipe and the expansion joint are communicated with each other.
Further, the rear end comprises a guide pipe, so that the smoke is conveniently guided to the first smoke exhaust pipe from the second smoke exhaust pipe, and the first end of the guide pipe is embedded into the front end of the first smoke exhaust pipe.
Further, the first notch is connected with the front end, the second notch is connected with the rear end, and the first end and the front end of the guide tube are connected in a sealing mode.
Further, the expansion joint is manufactured by processing a thin plate, and the expansion joint is an annular closed pipe.
Further, the inner diameter of the first smoke exhaust pipe is the same as the inner diameter of the second smoke exhaust pipe, and the inner diameter of the expansion joint is at least 1.5 times larger than the inner diameter of the first smoke exhaust pipe.
In the utility model, the inner diameter of the expansion joint is at least 1.5 times larger than the inner diameter of the first smoke exhaust pipe and the inner diameter of the second smoke exhaust pipe, and the expansion joint is processed into a sealing structure by adopting a thin plate, so that when the pipeline expands due to temperature rise, the length direction of the pipeline expands and becomes longer, and the expansion joint is easily compressed and shortened at the moment, thereby counteracting the dimensional change of the pipeline caused by expansion.
Further, a tar discharging port is arranged at the bottom of the expansion joint, so that tar is conveniently discharged from the tar discharging port.
Further, the terminal of the row Jiao Youkou is provided with an adjusting switch, so that tar in the pipe can be cleaned regularly, and the device is convenient and quick.
The second aspect of the utility model provides a roller kiln, which comprises a smoke outlet and a smoke exhaust pipeline communicated with the smoke outlet, wherein the smoke exhaust pipeline is provided with a plurality of expansion structures of the smoke exhaust pipeline, and the expansion structures counteract the dimensional change of the smoke exhaust pipeline caused by expansion, so that the size of a connecting mechanism of the roller kiln and the smoke exhaust pipeline is basically unchanged, and the service life of the smoke exhaust pipeline is prolonged.
Compared with the prior art, the utility model has the beneficial technical effects that:
the utility model provides an expansion structure of a smoke exhaust pipeline, which is characterized in that an expansion joint is arranged, the inner diameter of the expansion joint is at least 1.5 times larger than the inner diameter of a first smoke exhaust pipeline and the inner diameter of a second smoke exhaust pipeline, and a thin plate is adopted to be processed into a sealing structure, when the pipeline expands due to temperature rise, the length direction of the pipeline expands and becomes longer, the expansion joint compresses and becomes shorter, so that the dimensional change of the pipeline caused by expansion is counteracted, a coke discharging oil port is formed in the bottom of the expansion joint, tar enters the smoke exhaust pipeline through the bottom of the expansion joint, an adjusting switch is arranged at the terminal, and tar in the pipeline is cleaned regularly, so that the expansion structure is convenient and quick.
Drawings
Fig. 1 is a schematic structural diagram of a connection mode between main smoke exhaust pipes in the prior art;
fig. 2 is a schematic structural diagram of a connection mode between main pipes of a second conventional smoke exhaust;
FIG. 3 is a schematic diagram of the structure of the present utility model;
FIG. 4 is a schematic view of an expansion joint according to the present utility model;
FIG. 5 is a cross-sectional view taken along line B-B in FIG. 3;
fig. 6 is a schematic view of the structure of a roller kiln.
Wherein, the technical characteristics that the reference numerals in fig. 3-6 refer to are as follows:
1. a first smoke exhaust pipe; 2. a second smoke exhaust pipe; 3, an expansion joint; 4. a guide tube; 5. a coke discharging oil port; 6. a smoke outlet; 11. a front end; 21. a rear end; 31. a first notch; 32. a second notch; 41. a first end.
Detailed Description
The present utility model will be further described in detail with reference to the following examples, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, but the scope of the present utility model is not limited to the following specific examples.
Example 1
As shown in fig. 3-5, the present embodiment provides an expansion structure of a smoke exhaust pipeline, where the expansion structure includes a first smoke exhaust pipe 1, a second smoke exhaust pipe 2 and an expansion joint 3, a front end 11 of the first smoke exhaust pipe 1 is embedded in a first notch 31 of a first side surface of the expansion joint 3, a rear end 21 of the second smoke exhaust pipe 2 is embedded in a second notch 32 of a second side surface 32 of the expansion joint 3, and inner cavities of the first smoke exhaust pipe 1, the second smoke exhaust pipe 2 and the expansion joint 3 are communicated with each other.
In this embodiment, the front end 11 of the first smoke exhaust pipe 1 and the rear end 21 of the second smoke exhaust pipe 2 are defined according to the direction of smoke flowing, the direction of smoke flowing in is front, and the direction of smoke flowing out is rear.
The utility model provides an expansion structure of a smoke exhaust pipeline, which comprises a first smoke exhaust pipe 1, a second smoke exhaust pipe 2 and an expansion joint 3, wherein the front end 11 of the first smoke exhaust pipe 1 is embedded into a first notch 31 on the first side surface of the expansion joint 3, the rear end 21 of the second smoke exhaust pipe 2 is embedded into a second notch 32 on the second side surface of the expansion joint 3, and the inner cavities of the first smoke exhaust pipe 1, the second smoke exhaust pipe 2 and the expansion joint 3 are communicated with each other, so that the smoke is convenient to circulate, when the smoke circulates, the first smoke exhaust pipe 1 and the second smoke exhaust pipe 2 expand due to the rise of temperature, the length direction of the pipeline expands and the expansion joint 3 is compressed and shortened, so that the dimensional change of the first smoke exhaust pipe 1 and the second smoke exhaust pipe 2 caused by expansion is counteracted, and the problem of tar leakage caused by pipeline expansion is avoided.
Further, the rear end 21 comprises a guiding tube 4 for guiding the flue gas from the second flue gas pipe 2 to the first flue gas pipe 1, and the first end 41 of the guiding tube 4 is embedded in the front end 11 of the first flue gas pipe 1.
Specifically, the first notch 31 is in sealing connection with the front end 11, the second notch 32 is in sealing connection with the rear end 21, and the first end 41 of the guide tube 4 is in sealing connection with the front end 11, so that the problem of tar leakage is further avoided.
Further, the expansion joint 3 is processed into a sealing structure by adopting a thin plate, the stainless steel plates are sealing plates at two ends, and the expansion joint 3 is an annular closed pipe.
Further, the inner diameter of the first smoke exhaust pipe 1 is the same as the inner diameter of the second smoke exhaust pipe 2, and the inner diameter of the expansion joint 3 is 1.5 times larger than the inner diameter of the first smoke exhaust pipe 1.
In this embodiment, the inner diameter of the expansion joint 3 is at least 1.5 times larger than the inner diameters of the first smoke exhaust pipe 1 and the second smoke exhaust pipe 2, and the expansion joint 3 is made of thin plates, so that when the pipeline expands due to temperature rise, the length direction of the pipeline expands and becomes longer, the expansion joint 3 is easily compressed and becomes shorter, and the dimensional change of the pipeline caused by expansion is counteracted.
Further, a tar discharging port 5 is arranged at the bottom of the expansion joint 3, so that tar is conveniently discharged from the tar discharging port.
Further, an adjusting switch (not shown in the figure) is arranged at the terminal of the coke discharging oil port 5, so that tar in the pipe can be cleaned regularly, and convenience and rapidness are realized.
When in use, when high-temperature smoke flows from the second smoke exhaust pipe 2 to the first smoke exhaust pipe 1 through the guide pipe 4, the first smoke exhaust pipe 1 and the second smoke exhaust pipe 2 expand due to temperature rise, the length direction of the pipeline expands and becomes longer, the expansion joint 3 is compressed and becomes shorter, so that the dimensional change of the first smoke exhaust pipe 1 and the second smoke exhaust pipe 2 caused by expansion is counteracted, and the problem of tar leakage caused by pipeline expansion is avoided.
Example 2
As shown in fig. 6, this embodiment provides a roller kiln, including exhaust port 6 and the exhaust pipe way that communicates with exhaust port 6, be provided with the expansion structure of the exhaust pipe way in a plurality of embodiment 1 on the exhaust pipe way pipe, wherein a plurality of expansion joints 3 offset the size change that the exhaust pipe way was brought because of the inflation to make roller kiln and exhaust pipe's coupling mechanism size basically unchanged, prolonged the life of exhaust pipe way.
Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not constitute any limitation on the utility model.
Claims (7)
1. The expansion structure of the smoke exhaust pipeline is characterized by comprising a first smoke exhaust pipe (1), a second smoke exhaust pipe (2) and an expansion joint (3), wherein the front end (11) of the first smoke exhaust pipe (1) is embedded into a first notch (31) on the first side surface of the expansion joint (3), the rear end (21) of the second smoke exhaust pipe (2) is embedded into a second notch (32) on the second side surface of the expansion joint (3), and the inner cavities of the first smoke exhaust pipe (1), the second smoke exhaust pipe (2) and the expansion joint (3) are communicated;
the inner diameter of the first smoke exhaust pipe (1) is the same as the inner diameter of the second smoke exhaust pipe (2), and the inner diameter of the expansion joint (3) is at least 1.5 times larger than the inner diameter of the first smoke exhaust pipe (1).
2. An expansion structure of a smoke evacuation tube according to claim 1, wherein said rear end (21) comprises a guiding tube (4), a first end (41) of said guiding tube (4) being embedded in a front end (11) of said first smoke evacuation tube (1).
3. The expansion structure of a smoke exhaust pipeline according to claim 2, wherein the first notch (31) is in sealing connection with the front end (11), the second notch (32) is in sealing connection with the rear end (21), and the first end (41) of the guide tube (4) is in sealing connection with the front end (11).
4. An expansion structure of a fume exhaust line according to claim 1, characterized in that the expansion joint (3) is an annular closed pipe.
5. The expansion structure of the smoke exhaust pipeline according to claim 1, wherein a coke discharge port (5) is arranged at the bottom of the expansion joint (3).
6. An expansion structure of a smoke evacuation line according to claim 5, wherein the terminal end of said row Jiao Youkou (5) is provided with an adjusting switch.
7. Roller kiln comprising a smoke outlet (6) and a smoke exhaust duct communicating with the smoke outlet (6), characterized in that the smoke exhaust duct is provided with an expansion structure of the smoke exhaust duct according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321144380.7U CN220288251U (en) | 2023-05-12 | 2023-05-12 | Expansion structure of smoke exhaust pipeline and roller kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321144380.7U CN220288251U (en) | 2023-05-12 | 2023-05-12 | Expansion structure of smoke exhaust pipeline and roller kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220288251U true CN220288251U (en) | 2024-01-02 |
Family
ID=89337848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321144380.7U Active CN220288251U (en) | 2023-05-12 | 2023-05-12 | Expansion structure of smoke exhaust pipeline and roller kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220288251U (en) |
-
2023
- 2023-05-12 CN CN202321144380.7U patent/CN220288251U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203336983U (en) | Combustion air multistage heat exchange device | |
| CN220288251U (en) | Expansion structure of smoke exhaust pipeline and roller kiln | |
| WO2023236482A1 (en) | Grate driving mechanism cooling system and incinerator | |
| CN111255971B (en) | Annular cavity expansion compensator | |
| CN211840134U (en) | Vacuum degreasing sintering furnace with double internal pumping down pipelines | |
| CN213955996U (en) | Double-heat-storage type energy-saving heating furnace | |
| CN218435544U (en) | Gas ring pipe device for low-calorific-value gas burning double-hearth kiln | |
| CN212720918U (en) | Smelting flue gas exhaust pipeline | |
| CN219198435U (en) | Blast furnace hot air pipeline connection structure | |
| CN219829124U (en) | Preheating pipeline for hot blast stove | |
| CN217757543U (en) | Slag flowing dust removal system of RH vacuum tank | |
| CN219913957U (en) | Furnace face expansion joint | |
| CN219142783U (en) | Gas emission monitoring device for molten salt heating pyrolysis plastic | |
| CN104764338A (en) | Heat pipe type smoke pulverized coal heating device | |
| CN211116946U (en) | Air-cooled hydraulic cylinder for steel receiving trolley | |
| CN220505094U (en) | Double-fan switching air duct | |
| CN220891880U (en) | Anti-leakage pneumatic valve pipeline system | |
| CN111059930A (en) | Heat exchanger for stainless steel band bright furnace and energy-saving combustion system | |
| CN215411922U (en) | Slag cooler of heat island boiler | |
| CN220186853U (en) | Flue gas waste heat recovery device | |
| CN111018337A (en) | HEC optical fiber collapsing furnace gas path system and gas sealing method | |
| CN220413152U (en) | Heat exchange device of glass fiber kiln | |
| CN216337761U (en) | Hot-blast stove | |
| CN215000085U (en) | Branch pipe butt-joint structure without fire and welding | |
| CN219300116U (en) | Wall-penetrating connecting pipe for clean room |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |