CN201890889U - Blast furnace blast sealing structure - Google Patents
Blast furnace blast sealing structure Download PDFInfo
- Publication number
- CN201890889U CN201890889U CN2010206021140U CN201020602114U CN201890889U CN 201890889 U CN201890889 U CN 201890889U CN 2010206021140 U CN2010206021140 U CN 2010206021140U CN 201020602114 U CN201020602114 U CN 201020602114U CN 201890889 U CN201890889 U CN 201890889U
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- CN
- China
- Prior art keywords
- belly pipe
- blast
- blast furnace
- blow pipe
- air inlet
- 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 discloses a blast furnace blast sealing structure, which is used for solving the problem that two ends of a blow pipe in an existing ironmaking blast furnace blast system leak air due to untight sealing. The blast furnace blast sealing structure comprises a blow pipe and a blow pipe base connected with one end of the blow pipe, one end of the blow pipe is connected with a tuyere in a sealed manner, one end of the blow pipe base is connected with a blast device in a sealed manner, and elastic sealing parts are inset into annular grooves which are arranged on the end face of the connecting end of the blow pipe with the tuyere and on the end face of a connecting end of the blow pipe base with the blow pipe. The blast furnace blast sealing structure is applicable to sealing for blast furnace blast systems.
Description
Technical field
The utility model relates to a kind of blast furnace air inlet sealed structure, belongs to technical field of blast furnace ironmaking.
Background technology
In the iron-smelting blast furnace air inlet system, as shown in Figure 1, comprise air inlet device bend pipe 10, belly pipe 20 and tuyere small sleeve 30, the rear and front end of belly pipe 20 is connected with belly pipe 20 bases on the air inlet device bend pipe 10 with tuyere small sleeve 30 respectively, its front end, rear end are sphere, contact with sphere on the tuyere small sleeve 30 with belly pipe 20 bases respectively, mainly between the contact surface rely on the hard contact seal of sphere; The hot blast that comes from hotblast stove enters in the State of Blast Furnace through air inlet device 10, belly pipe 20, tuyere small sleeve 30.
In blast furnace production process, tuyere small sleeve is owing to frequent scaling loss is changed, when changing tuyere small sleeve, belly pipe must be unloaded, reinstall new tuyere small sleeve, because the difference between tuyere small sleeve sphere size, and with the hard seal form of belly pipe, make the belly pipe front end become the one of the main reasons that system leaks out; Simultaneously, the hard sealing means between belly pipe rear end and the base makes the belly pipe rear end air leakage phenomena also often occur.
The utility model content
The purpose of this utility model provides a kind of blast furnace air inlet sealed structure, in order to the two ends that solve belly pipe in the existing iron-smelting blast furnace air inlet system because of the poorly sealed problem of leaking out that causes.
The technical solution of the utility model realizes in the following manner: a kind of blast furnace air inlet sealed structure, comprise belly pipe and the belly pipe base that is connected with belly pipe one end, described belly pipe base and air inlet device are tightly connected, the other end and the tuyere small sleeve of belly pipe are tightly connected, on the end face of described belly pipe and tuyere small sleeve coupling end, the end face of belly pipe base and belly pipe coupling end is provided with elastic seal ring, this elastic seal ring comprises the annular recesses that is opened on the belly pipe base end face, and annular recesses is embedded in elastic sealing element.
Described elastic sealing element is the sealing member that graphite stainless steel spirally wound gasket constitutes.
The blast furnace air inlet sealed structure that the utility model provides, by on belly pipe and belly pipe base, annular recesses being set, annular recesses is embedded in elastic sealing element, make the sealing means of belly pipe and base and tuyere small sleeve, change into the soft seal mode by existing hard sealing means, when the contact surface of belly pipe and base, belly pipe and tuyere small sleeve the slit occurs because of dimensional precision or wearing and tearing, elastic sealing element can be eliminated the slit, keep in touch face seal, thereby overcome the problem of leaking out that prior art exists because of hard sealing means.
Description of drawings
Fig. 1 is the prior art constructions synoptic diagram.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the partial enlarged drawing of A among Fig. 2.
Embodiment
As Fig. 2, shown in Figure 3, a kind of blast furnace air inlet sealed structure, comprise belly pipe 20 and the belly pipe base 21 that is connected with belly pipe 20 1 ends, described belly pipe base 21 is tightly connected with air inlet device, the other end of belly pipe 20 and tuyere small sleeve 30 are tightly connected, on the end face of described belly pipe 20 and tuyere small sleeve 30 coupling ends, belly pipe base 21 is provided with elastic seal ring 40 with the end face of belly pipe 20 coupling ends, this elastic seal ring 40 comprises the annular recesses 41 that is opened on the belly pipe base end face, and annular recesses 41 is embedded in elastic sealing element 42.
Described elastic sealing element 42 is sealing members that graphite stainless steel spirally wound gasket constitutes.
The blast furnace air inlet sealed structure that the utility model provides, by on belly pipe 20 and belly pipe base 21, annular recesses 41 being set, annular recesses 41 is embedded in elastic sealing element 42, make the sealing means of belly pipe 20 and base 21 and tuyere small sleeve 30, change into the soft seal mode by existing hard sealing means, at belly pipe 20 and base 21, when the contact surface of belly pipe 20 and tuyere small sleeve 30 slit occurs because of dimensional precision or wearing and tearing, elastic sealing element 42 can be eliminated the slit, keep in touch face seal, thereby overcome the problem of leaking out that prior art exists because of hard sealing means.
Claims (2)
1. blast furnace air inlet sealed structure, comprise belly pipe (20) and the belly pipe base (21) that is connected with belly pipe (20) one ends, described belly pipe base (21) is tightly connected with air inlet device, the other end of belly pipe (20) and tuyere small sleeve (30) are tightly connected, it is characterized in that: on the end face of described belly pipe (20) and tuyere small sleeve (30) coupling end, the end face of belly pipe base (21 with) belly pipe (20) coupling end is provided with elastic seal ring (40), this elastic seal ring (40) comprises the annular recesses (41) that is opened on the belly pipe base end face, and annular recesses (41) is embedded in elastic sealing element (42).
2. blast furnace air inlet sealed structure according to claim 1 is characterized in that: described elastic sealing element (42) is the sealing member that graphite stainless steel spirally wound gasket constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206021140U CN201890889U (en) | 2010-11-11 | 2010-11-11 | Blast furnace blast sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206021140U CN201890889U (en) | 2010-11-11 | 2010-11-11 | Blast furnace blast sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201890889U true CN201890889U (en) | 2011-07-06 |
Family
ID=44220366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206021140U Expired - Fee Related CN201890889U (en) | 2010-11-11 | 2010-11-11 | Blast furnace blast sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201890889U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073580A (en) * | 2014-07-10 | 2014-10-01 | 山西太钢不锈钢股份有限公司 | Blast furnace belly pipe/tuyere small sleeve contact site air-leakage on-line adjustment method |
| CN107893136A (en) * | 2017-12-06 | 2018-04-10 | 中冶武汉冶金建筑研究院有限公司 | A kind of air-supply apparatus of blast furnace expansion joint castable expanded joint structure |
| CN109112242A (en) * | 2017-06-26 | 2019-01-01 | 宝山钢铁股份有限公司 | Blast-furnace tuyere fast sealing separates method and device |
-
2010
- 2010-11-11 CN CN2010206021140U patent/CN201890889U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073580A (en) * | 2014-07-10 | 2014-10-01 | 山西太钢不锈钢股份有限公司 | Blast furnace belly pipe/tuyere small sleeve contact site air-leakage on-line adjustment method |
| CN104073580B (en) * | 2014-07-10 | 2015-11-25 | 山西太钢不锈钢股份有限公司 | Straight blowing pipe of blast furnace and tuyere small sleeve contact site run wind on-line tuning method |
| CN109112242A (en) * | 2017-06-26 | 2019-01-01 | 宝山钢铁股份有限公司 | Blast-furnace tuyere fast sealing separates method and device |
| CN109112242B (en) * | 2017-06-26 | 2021-04-13 | 宝山钢铁股份有限公司 | Blast furnace tuyere fast sealing and separating method and device |
| CN107893136A (en) * | 2017-12-06 | 2018-04-10 | 中冶武汉冶金建筑研究院有限公司 | A kind of air-supply apparatus of blast furnace expansion joint castable expanded joint structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20111111 |