CN212658042U - Rotary kiln sealing improved device utilizing expansion joint - Google Patents
Rotary kiln sealing improved device utilizing expansion joint Download PDFInfo
- Publication number
- CN212658042U CN212658042U CN202021206379.9U CN202021206379U CN212658042U CN 212658042 U CN212658042 U CN 212658042U CN 202021206379 U CN202021206379 U CN 202021206379U CN 212658042 U CN212658042 U CN 212658042U
- Authority
- CN
- China
- Prior art keywords
- flange
- layer furnace
- expansion joint
- inner layer
- graphite packing
- 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
Images
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model belongs to the technical field of the rotary kiln is sealed, especially, utilize rotary kiln of expansion joint to seal and improve device. The device comprises a positioning device and a sealing piece, wherein the sealing piece is used for sealing a gap between an outer layer furnace body and an inner layer furnace tube, the positioning device is used for fixing and adjusting the position of the sealing piece along the axial direction of the inner layer furnace tube, and the positioning device comprises an elastic component for absorbing displacement and stress generated by axial movement of the inner layer furnace tube. The positioning device arranged in the utility model can adjust the position of the graphite packing, and prolong the service life of the graphite packing while ensuring the sealing effect; during later maintenance, only the graphite packing and the heat insulation material in the expansion joint need to be replaced, so that the maintenance is simple and the maintenance cost is low; meanwhile, the graphite packing has good lubricating property, so that the relative movement of the outer fixed furnace body and the inner rotating furnace body cannot be influenced.
Description
Technical Field
The utility model belongs to the sealed field of rotary kiln especially relates to an utilize rotary kiln of expansion joint to seal and improve device.
Background
The sealing between the rotating inner furnace cylinder and the static outer furnace body of the conventional rotary kiln adopts a labyrinth sealing mode (annular sealing teeth), the labyrinth sealing can meet the sealing requirement at the initial stage of use, but the labyrinth sealing effect is increasingly poor after the furnace body rotates for a long time, and a gap of 3-5 cm is formed between the outer furnace body and the inner furnace cylinder. Dust leaks out from the gap, and a large amount of cold air is sucked into the furnace body, so that the combustion efficiency of the rotary kiln is reduced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides an utilize rotary kiln of expansion joint to seal improvement device for this reason. The device can play a role in relieving and absorbing displacement and stress generated by axial movement of the inner layer furnace tube while keeping sealing and preventing cold air from entering the furnace body.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the device comprises a positioning device and a sealing piece, wherein the sealing piece is used for sealing a gap between an outer layer furnace body and an inner layer furnace tube, the positioning device is used for fixing and adjusting the position of the sealing piece along the axial direction of the inner layer furnace tube, and the positioning device comprises an elastic component for absorbing displacement and stress generated by axial movement of the inner layer furnace tube.
Preferably, one end of the elastic component is fixedly connected with the outer furnace body through a vertical flange, the other end of the elastic component is fixedly connected with the end face of the flange A, the elastic component, the vertical flange and the flange A are all sleeved on the outer side of the inner furnace barrel, and the inner ring of the elastic component, the inner ring of the vertical flange and the inner ring of the flange A are not in contact with the inner furnace barrel.
Preferably, the outer wall of the inner layer furnace cylinder is fixedly sleeved with a welding steel ring, and the sealing element is arranged at a gap between the welding steel ring and the flange A.
Preferably, an adjusting mechanism is arranged between the vertical flange and the flange A and is used for adjusting the distance between the vertical flange and the flange A along the axial direction of the inner layer furnace barrel.
Preferably, the adjusting mechanism is arranged on one side of the elastic component far away from the inner furnace tube, the adjusting mechanism comprises a bolt, one end of the bolt is fixedly connected with the flange A, the other end of the bolt penetrates through the vertical flange, and the bolt is fixedly connected with the vertical flange through a nut.
Preferably, the middle part of the bolt is sleeved with a spring, one end of the spring is abutted against the vertical face flange, and the other end of the spring is abutted against a positioning nut connected with the flange A.
Preferably, the vertical flange is fixedly connected with the outer layer furnace body through a leveling flange.
Preferably, the outer ring of the inner furnace cylinder is sleeved with a steel cylinder, the diameter of the steel cylinder is smaller than that of the elastic component, one end of the steel cylinder is fixedly connected with the vertical flange, a gap exists between the other end of the steel cylinder and the flange A, and a heat insulation material is filled between the steel cylinder and the elastic component.
Preferably, the sealing member is a graphite packing, the graphite packing comprises a graphite packing A fixed on the flange A and/or a graphite packing B fixed on the welding steel ring, and the graphite packing A and the graphite packing B are respectively arranged along the radial direction of the inner furnace barrel.
Preferably, the elastic part is an expansion joint, and two ends of the expansion joint are fixedly connected with the vertical flange and the flange A respectively.
The utility model has the advantages that:
(1) the positioning device arranged in the utility model can adjust the position of the graphite packing, and prolong the service life of the graphite packing while ensuring the sealing effect; during later maintenance, only the graphite packing and the heat insulation material in the expansion joint need to be replaced, so that the maintenance is simple and the maintenance cost is low; meanwhile, the graphite packing has good lubricating property, so that the relative movement cost of the outer-layer fixed furnace body and the inner-layer rotating furnace body cannot be influenced.
(2) The expansion joint is arranged between the welding steel ring of the furnace body and the flange A, and the expansion joint is filled with the heat insulation material, so that the purposes of heat insulation, heat preservation and cold air entering into the furnace body are achieved, the failure of a spring on a bolt at high temperature is avoided, and the radial sealing effect of the device is ensured; meanwhile, the expansion joint can absorb the displacement generated by the axial movement of the inner layer furnace tube and the stress caused by temperature and vibration, and plays a role in buffering.
(3) The utility model discloses graphite packing A and flange A fixed while with the terminal surface laminating of welding steel ring, graphite packing B and the terminal surface laminating of flange A when the welding steel ring is fixed, welding steel ring and graphite packing B rotate together with the inlayer boiler barrel at the rotary kiln during operation, flange A and graphite packing A keep static, because spring bolt's fixed, graphite packing and terminal surface can remain the contact and the friction of rotating throughout, graphite packing A and the installation that staggers of graphite packing B, the normal function of rotary kiln has not only been guaranteed, and the sealed effect of this device has been improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the positioning device according to the present invention.
The notations in the figures have the following meanings:
1-positioning device, 11-vertical flange, 111-leveling flange, 12-elastic component, 13-flange A, 14-bolt, 141-spring, 121-steel cylinder, 2-outer layer furnace body, 3-inner layer furnace cylinder, 31-welding steel ring and 4-sealing element.
Detailed Description
As shown in fig. 1-2, the sealing improvement device for the rotary kiln using the expansion joint comprises a positioning device 1 and a sealing piece 4, wherein the sealing piece 4 is used for sealing a gap between an outer layer furnace body 2 and an inner layer furnace tube 3, the positioning device 1 is used for fixing and adjusting the position of the sealing piece 4 along the axial direction of the inner layer furnace tube 3, and the positioning device 1 comprises an elastic component 12 for absorbing the displacement and stress generated by the axial movement of the inner layer furnace tube 3.
One end of an elastic component 12 is fixedly connected with the outer layer furnace body 2 through a vertical flange 11, the other end of the elastic component 12 is fixedly connected with the end face of a flange A13, the elastic component 12, the vertical flange 11 and a flange A13 are all sleeved on the outer side of the inner layer furnace tube 3, and the inner ring of the elastic component 12, the inner ring of the vertical flange 11 and the inner ring of the flange A13 are not in contact with the inner layer furnace tube 3; the outer wall of the inner layer furnace tube 3 is fixedly sleeved with a welding steel ring 31, and the sealing element 4 is arranged in a gap between the welding steel ring 31 and the flange A13.
An adjusting mechanism is arranged between the vertical face flange 11 and the flange A13 and is used for adjusting the distance between the vertical face flange 11 and the flange A13 along the axial direction of the inner layer furnace barrel 3.
The adjusting mechanism is arranged on one side of the elastic component 12 far away from the inner layer furnace barrel 3 and comprises a bolt 14, one end of the bolt 14 is fixedly connected with the flange A13, the other end of the bolt 14 penetrates through the elevation flange 11, and the bolt 14 is fixedly connected with the elevation flange 11 through a nut.
The middle part of the bolt 14 is sleeved with a spring 141, one end of the spring 141 is abutted against the elevation flange 11, and the other end of the spring 141 is abutted against a positioning nut connected with the flange A13.
The vertical flange 11 is fixedly connected with the outer layer furnace body 2 through a leveling flange 111. The levelling flange 111 can be used to correct an unbalance between the facade flange 11 and the outer shell 2.
The outer ring cover of the inner layer furnace tube 3 is equipped with a steel cylinder 121, and the diameter of the steel cylinder 121 is smaller than the diameter of the elastic component 12, one end of the steel cylinder 121 is fixedly connected with the vertical flange 11, a gap exists between the other end of the steel cylinder 121 and the flange A13, and a heat insulation material is filled between the steel cylinder 121 and the elastic component 12. The steel cylinder 121 can fix the heat insulation material between the steel cylinder 121 and the elastic component 12, so that the heat insulation material is prevented from falling off when the rotary kiln works.
Sealing member 4 is graphite packing, and graphite packing is including being fixed in graphite packing A on the flange A13 and/or being fixed in the graphite packing B on the welding steel ring 31, and graphite packing A and graphite packing B are respectively along the radial arrangement of inlayer furnace section of thick bamboo 3 for graphite packing A and the installation of staggering of graphite packing B further improve sealed effect.
The elastic part 12 is an expansion joint, and two ends of the expansion joint are fixedly connected with the elevation flange 11 and the flange A13 respectively. The expansion joint has elasticity, so that the purpose of adjusting the flange A13 is achieved by the nut connected with the vertical flange 11 through the adjusting bolt 14, and meanwhile, the expansion joint can absorb the displacement generated by the axial movement of the inner furnace tube 3 and the stress caused by temperature and vibration, and plays a role in buffering.
The operation of the device is described in detail below with reference to the drawings in the examples.
After the device is installed, the leveling flange 111 in the device is fixed on the outer layer furnace body 2, the elevation flange 11 is fixedly connected with the leveling flange 111, one end of the bolt 14 is relatively fixed with the elevation flange 11 through a nut, the welding steel ring 31 is fixedly sleeved on the outer wall of the inner layer furnace tube 3, the expansion joint is fixed between the elevation flange 11 and the flange A13, fiber cotton is filled between the expansion joint and the steel cylinder 121, after the rotary kiln runs for a long time, the graphite packing pieces which are arranged between the welding steel ring 31 and the flange A13 in a staggered mode are gradually worn, so that the gap between the welding steel ring 31 and the flange A13 is increased, the distance between the flange A13 and the facade flange 11 can be adjusted by adjusting the nut between the bolt 14 and the facade flange 11, meanwhile, the expansion joint has elasticity, so that the purpose of adjusting the size of a gap between the welding steel ring 31 and the flange A13 is achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (9)
1. A rotary kiln sealing improvement device utilizing an expansion joint is characterized in that: the device comprises a positioning device (1) and a sealing piece (4), wherein the sealing piece (4) is used for sealing a gap between an outer layer furnace body (2) and an inner layer furnace tube (3), the positioning device (1) is used for fixing and adjusting the position of the sealing piece (4) along the axial direction of the inner layer furnace tube (3), and the positioning device (1) comprises an elastic component (12) for absorbing displacement and stress generated by axial movement of the inner layer furnace tube (3).
2. The improved sealing device for rotary kilns using expansion joints as claimed in claim 1, wherein: one end of the elastic component (12) is fixedly connected with the outer layer furnace body (2) through a vertical flange (11), the other end of the elastic component (12) is fixedly connected with the end face of a flange A (13), the elastic component (12), the vertical flange (11) and the flange A (13) are all sleeved on the outer side of the inner layer furnace tube (3), and the inner ring of the elastic component (12), the inner ring of the vertical flange (11) and the inner ring of the flange A (13) are not in contact with the inner layer furnace tube (3); the outer wall of the inner layer furnace barrel (3) is fixedly sleeved with a welding steel ring (31), and the sealing element (4) is arranged in a gap between the welding steel ring (31) and the flange A (13).
3. The improved sealing device for the rotary kiln using the expansion joint as claimed in claim 2, wherein: an adjusting mechanism is arranged between the vertical face flange (11) and the flange A (13), and the adjusting mechanism is used for adjusting the distance between the vertical face flange (11) and the flange A (13) along the axial direction of the inner layer furnace tube (3).
4. The improved sealing device for the rotary kiln using the expansion joint as claimed in claim 3, wherein: the adjusting mechanism is arranged on one side, far away from the inner layer furnace barrel (3), of the elastic component (12), and comprises a bolt (14) with one end fixedly connected with a flange A (13), the other end of the bolt (14) penetrates through the vertical face flange (11), and the bolt (14) is fixedly connected with the vertical face flange (11) through a nut.
5. The improved sealing device for the rotary kiln using the expansion joint as claimed in claim 4, wherein: the middle part of the bolt (14) is sleeved with a spring (141), one end of the spring (141) is abutted against the vertical face flange (11), and the other end of the spring (141) is abutted against a positioning nut connected with the flange A (13).
6. The improved sealing device for the rotary kiln using the expansion joint as claimed in claim 2, wherein: the vertical flange (11) is fixedly connected with the outer layer furnace body (2) through a leveling flange (111).
7. The improved sealing device for rotary kilns using expansion joints as claimed in claim 1, wherein: the outer ring of the inner furnace tube (3) is sleeved with a steel cylinder (121), the diameter of the steel cylinder (121) is smaller than that of the elastic component (12), one end of the steel cylinder (121) is fixedly connected with the vertical flange (11), a gap exists between the other end of the steel cylinder (121) and the flange A (13), and a heat insulation material is filled between the steel cylinder (121) and the elastic component (12).
8. The improved sealing device for rotary kilns using expansion joints as claimed in claim 1, wherein: the sealing member (4) is a graphite packing, the graphite packing comprises a graphite packing A fixed on the flange A (13) and/or a graphite packing B fixed on the welding steel ring (31), and the graphite packing A and the graphite packing B are respectively arranged along the radial direction of the inner furnace barrel (3).
9. The improved sealing device for rotary kilns using expansion joints as claimed in claim 1, wherein: the elastic part (12) is an expansion joint, and two ends of the expansion joint are fixedly connected with the vertical flange (11) and the flange A (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021206379.9U CN212658042U (en) | 2020-06-24 | 2020-06-24 | Rotary kiln sealing improved device utilizing expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021206379.9U CN212658042U (en) | 2020-06-24 | 2020-06-24 | Rotary kiln sealing improved device utilizing expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212658042U true CN212658042U (en) | 2021-03-05 |
Family
ID=74760352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021206379.9U Active CN212658042U (en) | 2020-06-24 | 2020-06-24 | Rotary kiln sealing improved device utilizing expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212658042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578239A (en) * | 2021-08-13 | 2021-11-02 | 沈阳派司钛设备有限公司 | Hydrogen fluoride prereactor extension system |
| CN114935261A (en) * | 2022-06-09 | 2022-08-23 | 上海电气集团股份有限公司 | Rotary kiln sealing structure and sealing adjustment method |
-
2020
- 2020-06-24 CN CN202021206379.9U patent/CN212658042U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578239A (en) * | 2021-08-13 | 2021-11-02 | 沈阳派司钛设备有限公司 | Hydrogen fluoride prereactor extension system |
| CN114935261A (en) * | 2022-06-09 | 2022-08-23 | 上海电气集团股份有限公司 | Rotary kiln sealing structure and sealing adjustment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212658042U (en) | Rotary kiln sealing improved device utilizing expansion joint | |
| KR102057796B1 (en) | Rotary sealing mechanism | |
| CN103557389A (en) | Rotary joint | |
| CN209875952U (en) | Dynamic sealing device suitable for high speed and high pressure and aircraft | |
| CN105570462A (en) | Elastic contact type sealing device for rotary air preheater | |
| CN209926840U (en) | Sealing structure of rotary kiln | |
| CN107604969A (en) | Center-rotary joint and hydraulic crawler excavator | |
| WO2024012598A1 (en) | Sealing device for pure-oxygen rotary kiln | |
| CN209655780U (en) | A kind of seal of rotary kiln device | |
| CN215810108U (en) | Self-adjusting combined sealing structure for rotary kiln | |
| CN111089000B (en) | An adaptive high-durability floating seal structure suitable for extreme conditions | |
| CN114791042A (en) | High-temperature-resistant floating ring type mechanical sealing device | |
| CN204647314U (en) | Seal arrangement | |
| CN211875396U (en) | Explosion-proof high pressure resistant rotary compensator | |
| CN202251960U (en) | Labyrinth packing sealing device | |
| CN113028340A (en) | Lighting device with protection function | |
| CN203628090U (en) | Novel maintenance-free rotation compensation joint for pipeline | |
| CN208295358U (en) | A kind of effective rotary joint of thermal-arrest with high temperature resistant sealing structure | |
| CN217381970U (en) | Heat-resistant and corrosion-resistant direct-buried steel sleeve assembly | |
| CN207178672U (en) | For the compensating type sealing device in outer rotation cleaner | |
| CN215293282U (en) | Elastic floating ring oil seal of radial bearing | |
| CN221374466U (en) | High-resistant Wen Chuihui ware shaft seal device | |
| CN217355549U (en) | High-temperature-resistant floating ring type mechanical sealing device | |
| CN217603352U (en) | A high-speed fluid dynamic pressure sealing structure for new energy vehicles | |
| CN219221503U (en) | A self-adjusting sealing assembly and protection device for a steam sootblower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |