CN202220183U - Tension device of warm-air duct - Google Patents
Tension device of warm-air duct Download PDFInfo
- Publication number
- CN202220183U CN202220183U CN201120355650XU CN201120355650U CN202220183U CN 202220183 U CN202220183 U CN 202220183U CN 201120355650X U CN201120355650X U CN 201120355650XU CN 201120355650 U CN201120355650 U CN 201120355650U CN 202220183 U CN202220183 U CN 202220183U
- Authority
- CN
- China
- Prior art keywords
- pull bar
- seat ring
- pull rod
- air duct
- warm
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a tension device of a warm-air duct, belonging to the technical field of mechanical equipment in a smelting industry. The technical scheme is that the tension device of the warm-air duct comprises a pull rod seat ring (1), a pull rod seat ring (2), a pull rod (5), a connector (6), a connecting shaft (7) and a pull rod (8); the two ends of the connecting shaft are respectively connected with the connector which is connected with the pull rod (5) and the pull rod (8) respectively; the other end of the pull rod (5) is connected with the pull rod seat ring (1), and the other end of the pull rod (8) is connected with the pull rod seat ring (2); and the pull rod seat ring (1) is arranged on a branch warm-air duct (9), and the pull rod seat ring (2) is arranged on a main warm-air duct (10). The tension device of the warm-air duct has the beneficial effects that the maintenance time is greatly saved, and the labor intensity of maintenance workers is reduced. The tension device of the warm-air duct has the characteristics that the structure is simple, the installation and the manufacture are convenient, and the quick assembly and disassembly is achieved.
Description
Technical field
The utility model relates to a kind of hot air duct take-up device, belongs to the smelting industry mechanical equipment technical field.
Background technology
The hot air furnace hot air pipeline is a high-temperature and pressure pipeline, and hot air temperature is between 1100 ℃ ~ 1200 ℃.Hot air duct is stressed to be more complicated, and existing thermal expansive force and temperature stress have the frictional force of pressure of blast and refractory materials again; Existing concentrated loads has uniformly distributed load again; And the fatigue stress that periodically expands.With regard to stress form, existing stress in bending has tensile stress again, receives shear-stress again; With regard to receiving force direction, existing axially have radially again.The following problem of normal aborning appearance: be responsible for expanded by heating and produce displacement like hot blast; Can cause the displacement of loop expansion pipe generation destructive; Cracking phenomena can appear in loop expansion pipe, and the loop expansion pipe cracking can abrupt release go out a large amount of warm airs, the equipment around red-hot air can burn out; Be prone to presence of fire, also can cause blast furnace to stop production completely simultaneously; Hot blast manifold flange dislocation distortion causes the pipe flange pad to damage, and leaks out seriously in the part; The anti-material in hot air duct junctions ftractures, collapses, and tube wall is exposed under the high temperature gas flow, causes pipeline local deformaton, rubescent, even tube wall generation stress cracking.Be tending towards under the operational condition of high wind-warm syndrome, high pressure at existing blast furnace,, adopt take-up device to protect hot air duct in order to guarantee the safety of hot air duct.Its effect is to prevent that hot air duct from producing bigger displacement, and the loop expansion pipe on the protection hot air duct does not destroy, and then guarantees hotblast stove and blast furnace ordinary production.At present, the general pull bar that adopts four round steel to make of hot blast manifold take-up device, the weight of each pull bar is about 500 kilograms, and pull bar one end is to be threaded, and an end is to connect through bearing pin.When the valve flanges packing ring is changed in maintenance, need pull bar be unloaded down, whole pull bar is incured loss through delay the repair time because nut inconvenience dismounting and pull bar are heavier, and causing dismantling pull bar wastes time and energy.
The utility model content
The utility model purpose provides a kind of hot air duct take-up device, through pull bar being made the split unitized construction, solves the problems referred to above that exist in the background technology.
The technical scheme of the utility model is: a kind of hot air duct take-up device; Comprise pull bar seat ring, pull bar, joint, coupling shaft; The coupling shaft two ends are jointing respectively; Joint is connected with pull bar respectively, the other end cylinder lever connecting rod seat ring of pull bar, and the pull bar seat ring is located at respectively on hot blast manifold and the hot-blast main.
The coupling shaft two ends are connected with joint through bearing pin, and joint is connected with pull bar respectively through screw thread, and the other end of pull bar is respectively through screw thread, bearing pin cylinder lever connecting rod seat ring.
When maintenance dismounting pull bar, need whole pull bar all not laid down, only need pull bar intermediary coupling shaft be laid down and can overhaul valve.
The beneficial effect of the utility model is: can save the repair time greatly, reduce the labour intensity of service worker.Have simple in structurely, install easily manufacturedly, can realize the characteristics of fast assembling-disassembling.
Description of drawings
Fig. 1 is the utility model front view;
Fig. 2 is the utility model sectional view;
Among the figure: 1. pull bar seat ring, 2. pull bar seat ring, 3. bearing pin, 4. nut, 5. pull bar, 6. joint, 7. coupling shaft, 8. pull bar, 9. hot blast manifold, 10 hot-blast mains.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further through embodiment.
With reference to accompanying drawing 1,2, the hot air duct take-up device comprises pull bar seat ring 1, pull bar seat ring 2, pull bar 5, joint 6, coupling shaft 7, pull bar 8, pull bar 5 two ends machining screw, and joint 6 one ends have IT, two through holes of end processing; Coupling shaft 7 two ends process two through holes respectively; Pull bar 8 one end machining screw, through hole of end processing.The coupling shaft two ends are connected with joint through bearing pin; Joint is connected with pull bar 5,8 respectively through screw thread; The other end of pull bar 5 is through the pull bar seat ring 1 that is threaded; The other end of pull bar 8 is through bearing pin 3 cylinder lever connecting rod seat rings 2, and pull bar seat ring 1 is located on the hot blast manifold 9, and pull bar seat ring 2 is located on the hot-blast main 10.The top of pull bar 5 also is provided with nut 4.Designs two pin shaft holes in coupling shaft two ends are consider take-up device stressed, and take-up device both might receive pulling force, also power by compression, and it is stressed finally to transmit through pull bar.Because stressed all is axial force,, two holes have been designed in the junction for the pull bar that guarantees to be combined into can bear this axial force.According to the principle that two points make a line, the mode of connection of two pin shaft holes just can guarantee that interconnective two portions are co-axial, so the ability of carry load is the same with whole pull bar.The length of coupling shaft is according to the width setup of valve, and slightly wideer than the width of valve.When maintenance needs the dismounting pull bar, need whole pull bar all not laid down, only need pull bar intermediary coupling shaft be laid down and can overhaul valve.The weight of coupling shaft is about 50 kilograms, and dismounting is also than being easier to.Improved take-up device can reach original result of use, and is easy and simple to handle, time saving and energy saving, can save the repair time, for the high-yield and high-efficiency of blast furnace provides powerful guarantee.
Claims (3)
1. hot air duct take-up device; It is characterized in that comprising pull bar seat ring (1), pull bar seat ring (2), pull bar (5), joint (6), coupling shaft (7), pull bar (8); The coupling shaft two ends are jointing respectively; Joint is connected with pull bar (5), (8) respectively, the other end cylinder lever connecting rod seat ring (1) of pull bar (5), the other end cylinder lever connecting rod seat ring (2) of pull bar (8); Pull bar seat ring (1) is located on the hot blast manifold (9), and pull bar seat ring (2) is located on the hot-blast main (10).
2. the hot air duct take-up device according to claim 1; It is characterized in that the coupling shaft two ends are connected with joint through bearing pin; Joint is connected with pull bar (5), (8) respectively through screw thread; The other end of pull bar (5) is through the pull bar seat ring (1) that is threaded, and the other end of pull bar (8) is through bearing pin (3) cylinder lever connecting rod seat ring (2).
3. the hot air duct take-up device according to claim 2 is characterized in that the top of pull bar (5) is provided with nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120355650XU CN202220183U (en) | 2011-09-22 | 2011-09-22 | Tension device of warm-air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120355650XU CN202220183U (en) | 2011-09-22 | 2011-09-22 | Tension device of warm-air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220183U true CN202220183U (en) | 2012-05-16 |
Family
ID=46042211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120355650XU Expired - Fee Related CN202220183U (en) | 2011-09-22 | 2011-09-22 | Tension device of warm-air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202220183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115014612A (en) * | 2022-06-29 | 2022-09-06 | 马鞍山钢铁股份有限公司 | Pipeline real-time stress monitoring device and stress adjusting method thereof |
-
2011
- 2011-09-22 CN CN201120355650XU patent/CN202220183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115014612A (en) * | 2022-06-29 | 2022-09-06 | 马鞍山钢铁股份有限公司 | Pipeline real-time stress monitoring device and stress adjusting method thereof |
| CN115014612B (en) * | 2022-06-29 | 2024-02-02 | 马鞍山钢铁股份有限公司 | Pipeline real-time stress adjusting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20140922 |
|
| EXPY | Termination of patent right or utility model |