CN101545021B - Blast branch pipe of blast furnace - Google Patents
Blast branch pipe of blast furnace Download PDFInfo
- Publication number
- CN101545021B CN101545021B CN2009100618573A CN200910061857A CN101545021B CN 101545021 B CN101545021 B CN 101545021B CN 2009100618573 A CN2009100618573 A CN 2009100618573A CN 200910061857 A CN200910061857 A CN 200910061857A CN 101545021 B CN101545021 B CN 101545021B
- Authority
- CN
- China
- Prior art keywords
- blast
- branch pipe
- gas
- air
- metal bellows
- 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
Links
Images
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The invention relates to a novel blast branch pipe of a blast furnace, which comprises an upper metal bellows and a lower metal bellows, and is characterized in that annular side plates on side edges of the upper metal bellows and the lower metal bellows are provided with upper and lower compressed air inlet holes, the upper and lower compressed air inlet holes are connected with a gas pipe respectively, compressed gas in the gas pipe is communicated with an air cavity, and the pressure of the compressed air introduced into the gas pipe is slightly higher than the gas pressure in a pipeline. The invention has the advantages of improving the service life of the blast branch pipe, reducing fault rate, and greatly reducing time and economic loss of steelworks caused by damping down.
Description
Technical field
The present invention and a kind of blast branch pipe of blast furnace.
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 by this invention provides a kind of blast branch pipe of blast furnace, its better tightness, and the high-temperature gas that the sphere junction produces is difficult for revealing.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: blast branch pipe of blast furnace, 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 present invention 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 invention has the beneficial effects as follows: 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 invention.
Specific embodiments
The invention will be further described below in conjunction with embodiment, but can not be construed as limiting the invention.
Blast branch pipe of blast furnace, 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 invention 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 (1)
1. blast branch pipe of blast furnace, 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, endotracheal pressurized gas communicates with air cavity (5,6), and 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 |
|---|---|---|---|
| CN2009100618573A CN101545021B (en) | 2009-04-28 | 2009-04-28 | Blast branch pipe of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100618573A CN101545021B (en) | 2009-04-28 | 2009-04-28 | Blast branch pipe of blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101545021A CN101545021A (en) | 2009-09-30 |
| CN101545021B true CN101545021B (en) | 2010-09-29 |
Family
ID=41192397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100618573A Expired - Fee Related CN101545021B (en) | 2009-04-28 | 2009-04-28 | Blast branch pipe of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101545021B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201241164Y (en) * | 2008-08-19 | 2009-05-20 | 武汉策尔曼自动化设备有限公司 | Novel blast furnace air blast branch tube |
-
2009
- 2009-04-28 CN CN2009100618573A patent/CN101545021B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201241164Y (en) * | 2008-08-19 | 2009-05-20 | 武汉策尔曼自动化设备有限公司 | Novel blast furnace air blast branch tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101545021A (en) | 2009-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204459547U (en) | A kind of pipeline sealing device | |
| CN201241164Y (en) | Novel blast furnace air blast branch tube | |
| CN101545021B (en) | Blast branch pipe of blast furnace | |
| CN201990692U (en) | Automatic air dispensation system of multiple blast furnace blowers | |
| CN102393278B (en) | Bidirectional sealing performance testing system of mechanical rapping device | |
| CN101463401B (en) | Method for detecting hermeticity of blast furnace bucket rubber ring | |
| CN105642728B (en) | A kind of elastomeric material liquid is expanded into the device and method of shape composite bimetal pipe | |
| CN102538473B (en) | Air-cooled transfer chute of oxidized pellet chain-grate machine | |
| CN205347468U (en) | Blast furnace stave prosthetic devices | |
| CN201250250Y (en) | Oxygen lance channel sealing device | |
| CN102435400A (en) | Bidirectional sealing performance test method of mechanical vibrator | |
| CN101701270B (en) | Method for continuously maintaining cooling capability of blast furnace cooling wall after breakage | |
| CN103075602A (en) | Chimney expansion joint | |
| CN206902173U (en) | A kind of prosthetic appliance of the online leak stopping of water tube for cooling wall of blast furnace | |
| CN202992506U (en) | High temperature universal compensator | |
| CN205463827U (en) | Bloated device that takes shape bimetal composite tube of elastic material liquid | |
| CN206877975U (en) | A kind of delivery platform for being used to for wafer to be sent to processing chamber | |
| CN103672240A (en) | Novel pipeline connecting pressure-resisting flange and application | |
| CN202039076U (en) | Air inlet device of blast furnace | |
| CN201074236Y (en) | Blast furnace blasting branch pipe | |
| CN210916125U (en) | Nitrogen pressure equalizing device at top of blast furnace | |
| CN218780450U (en) | Piston compressor air seal residual air recovery unit | |
| CN2481725Y (en) | Blast furnace capable of visual leakage detecting cooling wall | |
| CN211035828U (en) | Gas furnace for synthetic ammonia production | |
| CN214830447U (en) | Temporary cooling and purging device for hot air outlet furnace shell of hot blast stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hubei Noko Machinery Equipment Co Ltd Assignor: Wuhan Chermann Automation Co., Ltd. Contract record no.: 2010420000175 Denomination of invention: Energy-efficient sol combined mullite castable used for blast furnace air supply branch pipe inner liner Granted publication date: 20100929 License type: Exclusive License Open date: 20090930 Record date: 20101018 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20210428 |