CN203820813U - Cooling wall structure of joint part of bosh and hearth of blast furnace - Google Patents
Cooling wall structure of joint part of bosh and hearth of blast furnace Download PDFInfo
- Publication number
- CN203820813U CN203820813U CN201420214082.5U CN201420214082U CN203820813U CN 203820813 U CN203820813 U CN 203820813U CN 201420214082 U CN201420214082 U CN 201420214082U CN 203820813 U CN203820813 U CN 203820813U
- Authority
- CN
- China
- Prior art keywords
- bosh
- wall body
- cooling wall
- hearth
- cooling
- 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 - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 79
- 239000011449 brick Substances 0.000 claims description 15
- 235000012149 noodles Nutrition 0.000 claims description 8
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 4
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 abstract 2
- 239000003034 coal gas Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a cooling wall structure of a joint part of a bosh and a hearth of a blast furnace, which solves the problem that the joint part of the bosh and the hearth of the blast furnace is easy to erode and has a short service life. The cooling wall structure mainly comprises a bosh cooling wall body and a hearth cooling wall body, wherein cooling water tube is embedded in the bosh cooling wall body, the heat surfaces of the bosh cooling wall body and the hearth cooling wall body are planes, the vertex angle of the heat surface of the hearth cooling wall body is of a firebrick structure, the firebrick is an integral SiC firebrick, the bottom of the firebrick is embedded in a dovetail groove of the hearth cooling wall body, a boss is arranged at the bottom of the cold surface of the bosh cooling wall body, and the cooling water tube penetrates through the boss to enter the bosh cooling wall body. The SiC firebricks are embedded in the heat surface of the hearth cooling wall and close to the vertex angle, so that the hearth cooling wall has better resistance to washing and erosion of high-temperature coal gas flow than the cast iron cooling wall body at the position of the vertex angle in the prior art, so that the cooling wall the position of the vertex angle is prevented from being eroded and damaged rapidly, and the service life of the cooling wall of the joint part of the bosh and the hearth of the blast furnace is effectively prolonged.
Description
Technical field
The utility model relates to a kind of blast-furnace bosh cupola well junction cooling wall structure.
Background technology
Blast furnace is made up of furnace throat, shaft, furnace bosh, bosh and five parts of cupola well from top to bottom, the wherein junction of restoration of lower stack, bosh, bosh and the cupola well serious region of blast furnace breakage often, impact on blast furnace campaign is huge, even determines to a certain extent blast furnace generation furnace service life.And since blast furnace starts to adopt water cooling technology, cooling stave becomes blast furnace resists the key equipment of high heat load and mechanical wear under hot conditions, be also the long-lived indispensable visual plant of modern blast furnace, become the important component part of blast furnace structure.At present, it is more that the cupola well cooling stave of blast-furnace bosh cupola well junction is stretched in stove by the restriction of furnace shell profile, its top, the washing away of the high-temperature coal air-flow that is easily subject to rising, thus corrode too early damagedly, and then burn out whole cooling stave; When after the top breakage of cupola well cooling stave, high-temperature coal air-flow can be scurried into bosh cooling stave huyashi-chuuka (cold chinese-style noodles) along the breakage of two sections cooling stave junction again, bosh cooling stave bottom huyashi-chuuka (cold chinese-style noodles) water inlet pipe is burnt out, and then burn out whole cooling stave, the blast furnace maintenance of being forced to stop production, shorten the work-ing life of blast furnace, affected the normal production order of blast furnace.
Summary of the invention
The purpose of this utility model is to overcome prior art defect, and a kind of blast-furnace bosh cupola well junction cooling wall structure is provided, to extend blast furnace cooling stave work-ing life.
The technical solution of the utility model is achieved in that a kind of blast-furnace bosh cupola well junction cooling wall structure, the bosh cooling stave wall body and the cupola well cooling stave wall body that are mainly embedded with water-cooled tube by inside form, bosh cooling stave wall body and cupola well cooling stave wall body hot side are plane, it is, cupola well cooling stave wall body hot side angle position is firebrick structure, and refractory brick bottom is embedded in the dovetail-indent of cupola well cooling stave wall body.
Preferably, refractory brick is all-in-one-piece SiC refractory brick.
Preferably, bosh cooling stave wall body huyashi-chuuka (cold chinese-style noodles) bottom is provided with boss, and water-cooled tube enters bosh cooling stave wall body through boss.
The utility model cupola well cooling stave hot side is inlayed SiC refractory brick near drift angle, than the erosion of washing away of the more high temperature resistant Gas Flow of cast-iron cooling wall wall body at drift angle place in original design, not only avoid the quick erosion breakage of cooling stave herein, and avoided the breakage bottom the bosh section cooling stave of cupola well top, effectively extend the service life of blast-furnace bosh cupola well junction cooling stave.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure, 1-bosh cooling stave wall body; 4-boss; 5-cupola well cooling stave wall body; 6-dovetail-indent; 7-refractory brick; 8-water-cooled tube.
Embodiment
Be further described below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of blast-furnace bosh cupola well junction cooling wall structure, the bosh cooling stave wall body 1 and the cupola well cooling stave wall body 5 that are mainly embedded with water-cooled tube 8 by inside form, bosh cooling stave wall body 1 and cupola well cooling stave wall body 5 hot sides are plane, cupola well cooling stave wall body 5 hot side angle positions are firebrick structure, refractory brick 7 is all-in-one-piece SiC refractory brick, refractory brick 7 bottoms are embedded in the dovetail-indent 6 of cupola well cooling stave wall body 5, bosh cooling stave wall body 1 huyashi-chuuka (cold chinese-style noodles) bottom is provided with boss 4, and water-cooled tube 8 enters bosh cooling stave wall body 1 through boss 4.
Aborning, after cupola well cooling stave wall body 5 is etched totally near the outer block refractory brick of stove inner side, cooling stave hot side mainly relies on the slag crust covering protection generating in stove, in the time that conditions of blast furnace fluctuates, can there is obscission in slag crust, now cooling stave will directly stand washing away of furnace high-temperature Gas Flow, and the SiC refractory brick 7 at cupola well cooling stave wall body 5 hot side drift angle places has that thermal conductivity is high in the utility model, hot strength is large, high abrasion resistance, resistance to thermal shock, erosion resistant feature, thereby avoid the quick erosion breakage of cooling stave herein; Use as a servant latter stage at generation stove, when SiC refractory brick 7 is etched after breakage, dovetail-indent 6 still has the characteristic of slag crust easy to hang, even in the time that the working of a furnace fluctuates, slag crust is difficult drop-off also, thereby has protected preferably cupola well cooling stave.In addition; when stove is used as a servant latter stage; after the SiC refractory brick 7 of cupola well cooling stave wall body 5 hot side angle positions corrodes totally; the boss 4 of bosh cooling stave wall body 1 huyashi-chuuka (cold chinese-style noodles) bottom still can effectively be protected the water-cooled tube 8 of cooling stave water inlet; boss 4 can also stop Gas Flow to scurry into bosh cooling stave wall body 1 huyashi-chuuka (cold chinese-style noodles) from the gap of two sections cooling stave combining site; the phenomenon of having avoided bosh cooling stave wall body 1 huyashi-chuuka (cold chinese-style noodles) water inlet pipe to be burnt out by Gas Flow; thereby the service life that has effectively extended blast-furnace bosh cupola well junction cooling stave, has ensured the production direct motion of blast furnace.
Claims (3)
1. a blast-furnace bosh cupola well junction cooling wall structure, the bosh cooling stave wall body and the cupola well cooling stave wall body that are mainly embedded with water-cooled tube by inside form, bosh cooling stave wall body and cupola well cooling stave wall body hot side are plane, it is characterized in that: cupola well cooling stave wall body hot side angle position is firebrick structure, refractory brick bottom is embedded in the dovetail-indent of cupola well cooling stave wall body.
2. a kind of blast-furnace bosh cupola well junction cooling wall structure according to claim 1, is characterized in that: refractory brick is all-in-one-piece SiC refractory brick.
3. a kind of blast-furnace bosh cupola well junction cooling wall structure according to claim 1 and 2, is characterized in that: bosh cooling stave wall body huyashi-chuuka (cold chinese-style noodles) bottom is provided with boss, and water-cooled tube enters bosh cooling stave wall body through boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420214082.5U CN203820813U (en) | 2014-04-29 | 2014-04-29 | Cooling wall structure of joint part of bosh and hearth of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420214082.5U CN203820813U (en) | 2014-04-29 | 2014-04-29 | Cooling wall structure of joint part of bosh and hearth of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820813U true CN203820813U (en) | 2014-09-10 |
Family
ID=51476333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420214082.5U Expired - Lifetime CN203820813U (en) | 2014-04-29 | 2014-04-29 | Cooling wall structure of joint part of bosh and hearth of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203820813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108977600A (en) * | 2018-09-29 | 2018-12-11 | 陕西龙门钢铁有限责任公司 | A kind of blast furnace intensity of cooling segmented control system |
-
2014
- 2014-04-29 CN CN201420214082.5U patent/CN203820813U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108977600A (en) * | 2018-09-29 | 2018-12-11 | 陕西龙门钢铁有限责任公司 | A kind of blast furnace intensity of cooling segmented control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170724 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Patentee after: WUHAN IRON AND STEEL Co.,Ltd. Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: WUHAN IRON AND STEEL (GROUP) Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |