CN201241164Y - Novel blast furnace air blast branch tube - Google Patents
Novel blast furnace air blast branch tube Download PDFInfo
- Publication number
- CN201241164Y CN201241164Y CNU2008201903693U CN200820190369U CN201241164Y CN 201241164 Y CN201241164 Y CN 201241164Y CN U2008201903693 U CNU2008201903693 U CN U2008201903693U CN 200820190369 U CN200820190369 U CN 200820190369U CN 201241164 Y CN201241164 Y CN 201241164Y
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- Prior art keywords
- air inlet
- tube
- compressed air
- blast
- air
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Abstract
The utility model relates to a Novel blast furnace blast branch pipe, which comprises an upper metal corrugated tube and a lower metal corrugated tube, and is characterized in that an upper compressed air inlet and a lower compressed air inlet are arranged on annular side plates at sides of the upper metal corrugated tube and the lower metal corrugated tube, the upper compressed air inlet and the lower compressed air inlet are respectively connected with an air tube, compressed gas in the air tube is communicated with an air cavity, and the pressure of compressed air input to the air tube is slightly higher than the gas pressure in a pipeline. The utility model has the technical advantages of: extended service life of the blast branch pipe, reduced failure rate, and greatly reduced time and economic loss caused by blowing-down for iron and steel plants.
Description
Technical field
This practicality newly relates to a kind of novel blast-furnace blowpipe.
Technical background
At present, the steel industry blast furnace all adopts blowpipe equipment to blow, what send to is the hot blast of band pressure, it is elongated to expand after pipeline is heated, for the pipeline damage that the uncontrollable displacement of offsetting the generation of expanding causes, so adopted two spherical transition pipe technologies, sphere junction radian cooperatively interacts, also filled the sealing material that prevents that hot gas from revealing between the sphere, the junction has also installed the metallic bellows that can seal and can take place relative displacement additional in addition.Although adopted so many technology, but the high-temperature gas that the sphere junction produces reveal to breaking of causing of corrugated tube wait damage still inevitable, and then cause the blowpipe cisco unity malfunction, make and finally Steel Plant are caused the tremendous economic loss by the blast furnace stop production to overhaul of having to.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of novel blast-furnace blowpipe, its better tightness, and the high-temperature gas that the sphere junction produces is difficult for revealing.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the novel blast-furnace blowpipe, include upper and lower metallic bellows, the side annular side plate that it is characterized in that upper and lower metallic bellows is provided with upper and lower pressurized air air inlet port, this upper and lower pressurized air air inlet port links to each other with tracheae respectively, and endotracheal pressurized gas communicates with air cavity.
Press such scheme, the compressed-air actuated pressure that feeds in the tracheae is a little more than the gaseous tension in the pipeline.
The utility model has the hole that is used for trachea in metallic bellows side annular side plate, and connect tracheae, the gas that is inserted is pressurized air, pressure is a little more than the gaseous tension in the pipeline, when damaging in conjunction with bad or sealing material owing to sphere and other reason causes when revealing, the compressed gas that inserts is known from experience the gas leakage that stops in the pipeline and is arrived air cavity, thereby the high-temperature gas that can not allow blast tube reveal directly damages metallic bellows, avoids causing whole blast tube to quit work.
The beneficial effect of this use new technique is: improve blowpipe work-ing life, reduce failure rate, alleviate the time and the financial loss that cause to Steel Plant because of damping down greatly.
Description of drawings
Fig. 1 is an one-piece construction sectional view of the present utility model.
Specific embodiments
The utility model is described in further detail below in conjunction with embodiment, but can not constitute restriction of the present utility model.
The novel blast-furnace blowpipe, include upper and lower metallic bellows (7,8), the side annular side plate of upper and lower metallic bellows is provided with upper and lower pressurized air air inlet port (3,4), this upper and lower pressurized air air inlet port links to each other with tracheae respectively, endotracheal pressurized gas communicates with air cavity (5,6) [space that metallic bellows, hot blast air-supply tube wall and sealing material (1,2) form], and the compressed-air actuated pressure that feeds in the tracheae is a little more than the gaseous tension in the pipeline.Ectosphere 9 can be swung arbitrarily for behind the pipe expansion among Fig. 1, thereby the uncontrollable displacement of offsetting the generation of expanding designs.
Principle of the present utility model is: from the figure as can be seen, between metallic bellows and hot blast air-supply tube wall, a ring seal air cavity is arranged, the high-temperature gas of revealing in original technology at first enters this air cavity, and corrugated tube can't stand that because of bearing high temperature breaks, and then causes whole pipe to lose function.Processing is used for the mouth of trachea on annular side plate as shown, connect after pressure is slightly larger than pressurized air in the pipeline, in case leakage is arranged, the pressurized air of introducing reveals gas leakage in the pipe because of pressure can stop greater than the gaseous tension in the pipeline, thus the work-ing life of improving the stove blowpipe.
Claims (2)
1, novel blast-furnace blowpipe, include upper and lower metallic bellows (7,8), the side annular side plate that it is characterized in that upper and lower metallic bellows (7,8) is provided with upper and lower pressurized air air inlet port (3,4), this upper and lower pressurized air air inlet port (3,4) links to each other with tracheae respectively, and endotracheal pressurized gas communicates with air cavity (5,6).
2, by the described novel blast-furnace blowpipe of claim 1, it is characterized in that described compressed-air actuated pressure is a little more than the gaseous tension in the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201903693U CN201241164Y (en) | 2008-08-19 | 2008-08-19 | Novel blast furnace air blast branch tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201903693U CN201241164Y (en) | 2008-08-19 | 2008-08-19 | Novel blast furnace air blast branch tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241164Y true CN201241164Y (en) | 2009-05-20 |
Family
ID=40714459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201903693U Expired - Lifetime CN201241164Y (en) | 2008-08-19 | 2008-08-19 | Novel blast furnace air blast branch tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241164Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545021B (en) * | 2009-04-28 | 2010-09-29 | 武汉策尔曼自动化设备有限公司 | Blast branch pipe of blast furnace |
-
2008
- 2008-08-19 CN CNU2008201903693U patent/CN201241164Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545021B (en) * | 2009-04-28 | 2010-09-29 | 武汉策尔曼自动化设备有限公司 | Blast branch pipe of blast furnace |
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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: 20090520 Effective date of abandoning: 20080819 |