CN204779660U - LF stove water cooled cover centre piece - Google Patents
LF stove water cooled cover centre piece Download PDFInfo
- Publication number
- CN204779660U CN204779660U CN201520491988.6U CN201520491988U CN204779660U CN 204779660 U CN204779660 U CN 204779660U CN 201520491988 U CN201520491988 U CN 201520491988U CN 204779660 U CN204779660 U CN 204779660U
- Authority
- CN
- China
- Prior art keywords
- prefab
- water cooled
- cooled cover
- prefabricated component
- resistance
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000000725 suspension Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 210000001364 upper extremity Anatomy 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model provides a LF stove water cooled cover centre piece, belongs to the smelting technique field of metal for solve that traditional centre piece reliability is poor, the inconvenient problem of installation, its technical scheme is, it include the great truncated conical tip prefab of nai material of upper portion diameter and suit at the metal ring of the prefab of nai material outside, the metal ring includes the annular conical surface board and annular flat board coaxial with the prefab of being able to bear or endure the material, annular conical surface board is hugged closely on the conical surface of the prefab of nai the material, the annular flat board be located annular conical surface board the below and with annular conical surface board fixed connection, its inner edge holds in the palm on the bottom surface of the prefab of nai the material, the outer fringe is taken on the water cooled cover. The utility model discloses make the dispersion of prefab atress, the local stress reduces to its life has been prolonged. When changing the prefab, can place the prefab in the metal ring in non - operation area earlier, recycle the overhead traveling crane and put the here device in the water cooled cover top, effectively shortened the change time, improve LF stove operation rate.
Description
Technical field
The utility model relates to a kind of LF stove water cooled cover centrepiece of easy for installation, reliable operation, belongs to the technical field of smelting of metal.
Background technology
In LF stove refining production process, can produce electrode arc light above bell central zone, and this region exists the possibility of spattering outside slag, in bell, reducing atmosphere can not be guaranteed, and high-temperature molten steel can work the mischief to equipment such as electric-pole horizontal arms simultaneously.In order to protect refining unit, prevent from spattering outside slag and forming Deoxidation Atmosphere in Furnace, need to place high temperature resistance refractory materials in water cooled cover central zone, be referred to as centrepiece.
It is comparatively large that existing LF stove water cooled cover centrepiece is generally upper diameter, and the circular cone shape prefabricated component of resistance to material that lower diameter is less, the conical surface by sidepiece is stuck in bell center annular water cooling tube place (referring to Fig. 1).Find in actual production process, there is many deficiencies in this kind of centrepiece, specific as follows:
One, the prefabricated component of resistance to material is in vacant state, and it is stressed concentrates on stringcourse, and easily cracked under high-temperature molten steel baking and accumulated slag condition, reliability is poor, and work-ing life is shorter.
Two, the prefabricated component of resistance to material weight reaches 500kg, and only by water cooled cover water cooling tube support topmost, water-cooled tube wall is stressed excessive, at high temperature easily occurs that distortion is even leaked.
Three, when using overhead traveling crane to change the prefabricated component of resistance to material, when the prefabricated component of resistance to material falls into bell center, direction is difficult to adjustment, and the activity duration is longer.
Utility model content
The purpose of this utility model is the drawback for prior art, provides a kind of LF stove water cooled cover centrepiece of easy for installation, reliable operation.
Problem described in the utility model realizes with following technical proposals:
A kind of LF stove water cooled cover centrepiece, formation comprises the larger circular cone shape prefabricated component of resistance to material of upper diameter and is sleeved on the metal backing ring of the prefabricated component of resistance to material outside, described metal backing ring comprises the circular cone plate coaxial with the prefabricated component of resistance to material and ring plate, described circular cone plate is close on the conical surface of the prefabricated component of resistance to material, described ring plate is positioned at the below of circular cone plate and is fixedly connected with circular cone plate, its inner rim holder is on the bottom surface of the prefabricated component of resistance to material, and outer rim rides on water cooled cover.
Above-mentioned LF stove water cooled cover centrepiece, the top of described circular cone plate is fixed with three suspension ring, and the upper limb of described three suspension ring annularly cone plate is uniformly distributed.
Above-mentioned LF stove water cooled cover centrepiece, the internal diameter 40-60mm less of the prefabricated component of resistance to material basal diameter of described ring plate, the external diameter 20-40mm larger than the ring internal diameter of water cooling tube annular on the upside of water cooled cover center of ring plate.
The prefabricated component of resistance to material is arranged in metal backing ring by the utility model, makes prefabricated component force dispersion, and local stress reduces, thus extends its work-ing life.The weight of this device is born primarily of water cooled cover, effectively prevent water cooling tube distortion drainage.When changing prefabricated component, can be first placed on by prefabricated component in metal backing ring in non-working district, this device is put in above water cooled cover by recycling overhead traveling crane, effectively shortens replacing construction, improves LF stove operating rate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the scheme of installation of traditional LF stove water cooled cover centrepiece;
Fig. 2 is structural representation of the present utility model.
In figure, mark is as follows: 1, annular water cooling tube; 2, the prefabricated component of resistance to material; 3, suspension ring; 4, circular cone plate; 5, ring plate.
Embodiment
Referring to Fig. 2, it is comparatively large that the utility model comprises upper diameter, and the circular cone shape prefabricated component of resistance to material 2 that lower diameter is less and metal backing ring, wherein, metal backing ring is made up of ring plate 5, circular cone plate 4 and suspension ring 3 three part.
Show in figure, the inwall of circular cone plate 4 matches with the sidewall shape of the circular cone shape prefabricated component of resistance to material 2 (namely the two tapering, upper limb diameter and lower edge diameter are all consistent), circular cone plate 4 is close on the sidewall of the circular cone shape prefabricated component of resistance to material 2, the lower edge of circular cone plate 4 is welded on the upper surface of ring plate 5, the thickness of circular cone plate 4 is 10mm, and the thickness of ring plate 5 is 15mm.
Show in figure, the part that the bottom periphery of the prefabricated component of resistance to material 2 is positioned at circular cone plate 4 by the upper surface of ring plate 5 supports, and bearing surface width is 40-60mm.
Show in figure, the upper limb of circular cone plate 4 is provided with suspension ring 3, and suspension ring 3 have 3 altogether, and 3 suspension ring become hexagonal angle to be evenly distributed on circular cone plate 4 top.
The prefabricated component of resistance to material 2 of the present utility model can firmly seat on metal backing ring, its gravity decomposes on the upside of ring plate 5 and inside circular cone plate 4, make the prefabricated component of resistance to material not easily broken, effectively extend its work-ing life (being promoted to 5000 current stoves from 1500 original stoves).This device action of gravity, on water cooled cover, avoids the phenomenon that the single water cooling tube in original bell upper end is stressed, eliminates water cooling tube distortion leakage hidden trouble.When changing prefabricated component, in advance prefabricated component directly can be placed in metal backing ring in non-working district, overhead traveling crane this device of slinging is utilized to be put in above water cooled cover, effectively shorten replacing construction (20min/ part can be reduced), improve LF stove operating rate, secondary device is beneficial to manual shift, and safe and reliable.
Claims (3)
1. a LF stove water cooled cover centrepiece, it is characterized in that, it comprises the larger circular cone shape prefabricated component of resistance to material (2) of upper diameter and is sleeved on the outside metal backing ring of the prefabricated component of resistance to material (2), described metal backing ring comprises the circular cone plate (4) coaxial with the prefabricated component of resistance to material (2) and ring plate (5), described circular cone plate (4) is close on the conical surface of the prefabricated component of resistance to material (2), described ring plate (5) is positioned at the below of circular cone plate (4) and is fixedly connected with circular cone plate (4), its inner rim holder is on the bottom surface of the prefabricated component of resistance to material (2), outer rim rides on water cooled cover.
2. a kind of LF stove water cooled cover centrepiece according to claim 1, is characterized in that, the top of described circular cone plate (4) is fixed with three suspension ring (3), and the upper limb of described three suspension ring (3) annularly cone plate (4) is uniformly distributed.
3. a kind of LF stove water cooled cover centrepiece according to claim 1 and 2, it is characterized in that, the internal diameter 40-60mm less of the prefabricated component of resistance to material (2) basal diameter of described ring plate (5), the external diameter 20-40mm larger than the ring internal diameter of water cooling tube annular on the upside of water cooled cover center of ring plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520491988.6U CN204779660U (en) | 2015-07-09 | 2015-07-09 | LF stove water cooled cover centre piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520491988.6U CN204779660U (en) | 2015-07-09 | 2015-07-09 | LF stove water cooled cover centre piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204779660U true CN204779660U (en) | 2015-11-18 |
Family
ID=54519750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520491988.6U Expired - Fee Related CN204779660U (en) | 2015-07-09 | 2015-07-09 | LF stove water cooled cover centre piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204779660U (en) |
-
2015
- 2015-07-09 CN CN201520491988.6U patent/CN204779660U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204779660U (en) | LF stove water cooled cover centre piece | |
| CN204035494U (en) | The argon protecting cover that a kind of die casting cast steel ingot uses | |
| CN201660661U (en) | Pollution-free deoxidization CAS-OB refining device | |
| CN202359150U (en) | Split air brick mechanism with steel leakage prevention function | |
| CN106702172A (en) | Soldering copper slag tank with refractory lining | |
| CN204185512U (en) | A kind of heat preserving agent distributor | |
| CN203582893U (en) | Smelting feeding device of vacuum induction furnace | |
| CN209144315U (en) | A kind of metal bottom block assembly of single crystal growing furnace secondary charging | |
| CN203360252U (en) | Fixing base for quartz crucible used for producing optical glass clinker | |
| CN202595185U (en) | VD (vacuum degassing) vacuum furnace shielding cover | |
| CN206721258U (en) | A kind of ladle automatic argon-blowing protection structure | |
| CN202730177U (en) | Non-steel adhesion slag splashing protection device | |
| CN207873112U (en) | A kind of steel ladle cover for reducing offline ladle temperature drop | |
| CN202465762U (en) | Special process slag stopper for slag free tapping of converter | |
| CN205576205U (en) | Vacuum tank structure for RH | |
| CN201644774U (en) | Circular secondary steel ladle air brick | |
| CN204043400U (en) | A kind of bottom convertor isolating and protecting device | |
| CN202626230U (en) | Improved structure of electric furnace body | |
| CN207760382U (en) | A kind of annular brick plate for refining furnace dip pipe | |
| CN204944169U (en) | Casting smelting intermediate frequency furnace increase part | |
| CN204944168U (en) | Casting smelting intermediate frequency furnace | |
| CN205907276U (en) | Blast furnace stores up indisputable formula tap drain impact zone current stabilizer | |
| CN204237737U (en) | For pushing up the port lid understructure of dress coke oven | |
| CN205352081U (en) | LF stove water cooled cover | |
| CN203917899U (en) | A kind of Novel hot-metal bottle tank mouth structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 067102 A block 520, Luanhe town finance square, Shuangluan District, Chengde, Hebei Patentee after: CHENGDE BRANCH OF HBIS Group Address before: 067102 Luanhe town finance square, Shuangluan District, Chengde, Hebei, Hebei iron and steel Limited by Share Ltd Chengde branch Patentee before: HEBEI IRON AND STEEL Co.,Ltd. CHENGDE BRANCH |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |