CN203820837U - Rh vacuum furnace - Google Patents
Rh vacuum furnace Download PDFInfo
- Publication number
- CN203820837U CN203820837U CN201420199666.XU CN201420199666U CN203820837U CN 203820837 U CN203820837 U CN 203820837U CN 201420199666 U CN201420199666 U CN 201420199666U CN 203820837 U CN203820837 U CN 203820837U
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- CN
- China
- Prior art keywords
- refractory brick
- circulation tube
- tubular stinger
- tube
- circulation
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Abstract
The utility model provides an RH vacuum furnace which comprises an inserting tube, an inserting tube refractory brick which is built outside the inserting tube, a bottom steel structure, a circulation tube and a circulation tube refractory brick, wherein the inserting tube is welded with the bottom steel structure; the circulation tube and the circulation tube refractory brick take the shape of a straight cylinder; the circulation tube is directly built on the inserting tube; the circulation tube refractory brick is directly built on the inserting tube refractory brick; and the inserting tube and the bottom steel structure are welded in a slope welding manner. As the circulation tube refractory brick of the RH vacuum furnace is directly built on the inserting tube refractory brick, that is, that circulation tube refractory brick and the inserting tube refractory brick are integrally formed as a whole and are not affected by external steel structure deformation, no brick seam is caused, and thus the phenomenon that the steel is deviated between the inserting tube and the circulation tube is avoided.
Description
Technical field
The utility model relates to field of steel-making, relates in particular to a kind of RH vacuum oven.
Background technology
RH vacuum oven is, in steel making working procedure, molten steel is carried out to vacuum treated key equipment.RH vacuum oven is for eliminating the white point that molten steel hydrogen causes.When molten steel is after RH vacuum oven is processed, in steel hydrogen richness can fast-descending below 2ppm.Current by molten steel being carried out to can obtain the molten steel that purity is very high after vacuum-treat, usually, P+S+ H+O+N≤100ppm in molten steel.Meanwhile, can Development and Production go out many high cleanlinesses, high added value kind by RH vacuum oven.Particularly, when molten steel is carried out to vacuum-treat, two of bottoms of RH vacuum oven H type tubular stinger directly inserts in the molten steel of ladle, wherein the first tubular stinger is blown into argon gas and utilizes steam-to-vacuum pump to vacuumize molten steel is mentioned, the second tubular stinger is not blown into argon gas, molten steel is mentioned in the first tubular stinger, and molten steel flows out in the second tubular stinger.Molten steel in ladle flows out after repeatedly mentioning, vacuumize in the first tubular stinger in the second tubular stinger, and molten steel constantly circulates, until vacuum-treat is complete.
Because high-temperature molten steel is generally greater than 1600 DEG C, it is iterative cycles in RH vacuum oven, therefore the easy bleed-out of RH vacuum oven.Conventionally the tubular stinger that RH vacuum furnace bottom circulation tube docks with bottom is all to dock after building respectively refractory brick by laying bricks or stones separately again, after docking by two portions during welding for steel structure together.In RH vacuum oven production process, because the steel construction between RH bottom cycle pipe and tubular stinger is nearest from molten steel, the temperature of steel construction is very high, under its high temperature more than 1600 DEG C, easily there is steel construction deformation, cause brick support disc on lift, cause occurring brickwork joint between tubular stinger refractory brick and circulation tube refractory brick, cause the leakage of tubular stinger flange.
Utility model content
The technical problems to be solved in the utility model is: the RH vacuum oven that does not occur brickwork joint between a kind of tubular stinger refractory brick and circulation tube refractory brick is provided.
The utility model for solving the problems of the technologies described above taked technical scheme is:
A kind of RH vacuum oven, it comprises tubular stinger, builds tubular stinger refractory brick, bottom steel structure, circulation tube and circulation tube refractory brick outside described tubular stinger by laying bricks or stones.Described tubular stinger is together with bottom steel structure welding.Described circulation tube and circulation tube refractory brick are straight tube shape.On described tubular stinger, directly build circulation tube by laying bricks or stones, on described tubular stinger refractory brick, directly build circulation tube refractory brick by laying bricks or stones, and described tubular stinger and bottom steel structure welding mode are groove welding.
In such scheme, described circulation tube is that layering is built by laying bricks or stones on described tubular stinger.
In such scheme, described circulation tube refractory brick is that layering is built by laying bricks or stones on described tubular stinger refractory brick, and every layer of corresponding one deck circulation tube of circulation tube refractory brick.
Compared with prior art, the technique effect that the utility model is obtained is:
The described circulation tube refractory brick that described RH vacuum oven comprises is directly built by laying bricks or stones on described tubular stinger refractory brick, be that described circulation tube refractory brick and described tubular stinger refractory brick are combined into an entirety, be not subject to the impact of outer steel structural distortion, there will not be brickwork joint, thereby avoided occurring between tubular stinger and circulation tube the phenomenon of badly bleeding.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of the RH vacuum oven that provides of the utility model embodiment.
Fig. 2 is the enlarged diagram of the II part in Fig. 1.
In figure: 10-RH vacuum oven, 1-tubular stinger, 2-tubular stinger refractory brick, 3-bottom steel structure, 4-circulation tube, 5-circulation tube refractory brick, 6-groove welding, 7-brace table.
Embodiment
Below in conjunction with drawings and Examples, the utility model will be further described, and certain following embodiment should not be construed as restriction of the present utility model.
Referring to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of RH vacuum oven 10, and it comprises tubular stinger 1, builds tubular stinger refractory brick 2, bottom steel structure 3, circulation tube 4 and circulation tube refractory brick 5 outside described tubular stinger 1 by laying bricks or stones.
Described tubular stinger 1 welds together with bottom steel structure 3.In the present embodiment, described tubular stinger 1 is groove welding 6 with bottom steel structure 3 welding processs.
In the present embodiment, described circulation tube 4 is straight tube shape, on described tubular stinger 1, directly builds circulation tube 4 by laying bricks or stones.In the present embodiment, described circulation tube 4 is that layering is built by laying bricks or stones on described tubular stinger 1.In other words, described brace table 7 is not provided with the brick support disc engaging with circulation tube refractory brick 5.
In the present embodiment, circulation tube refractory brick 4 is straight tube shape, on described tubular stinger refractory brick 2, directly builds circulation tube refractory brick 4 by laying bricks or stones.Described circulation tube refractory brick 4 is that layering is built by laying bricks or stones on described tubular stinger refractory brick 2, and every layer of corresponding one deck circulation tube 4 of circulation tube refractory brick 4.
The utlity model has following advantage:
The described circulation tube refractory brick 5 that described RH vacuum oven 10 comprises is directly built by laying bricks or stones on described tubular stinger refractory brick 2, be that described circulation tube refractory brick 5 is combined into an entirety with described tubular stinger refractory brick 2, be not subject to the impact of outer steel structural distortion, there will not be brickwork joint, thereby avoided occurring between tubular stinger 1 and circulation tube 4 phenomenon of badly bleeding.In other words, because described brace table 7 is not provided with the brick support disc engaging with circulation tube 4, therefore, in RH vacuum oven 10 production processes, even if steel construction at high temperature produces deformation and causes to drag on brick dish and lift, can not cause occurring brickwork joint between described circulation tube refractory brick 5 and described tubular stinger refractory brick 2, therefore can avoid occurring between tubular stinger 1 and circulation tube 4 phenomenon of badly bleeding yet.
It should be noted that, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not depart from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (2)
1. a RH vacuum oven, it comprises tubular stinger, builds tubular stinger refractory brick and bottom steel structure outside described tubular stinger by laying bricks or stones, described tubular stinger is together with bottom steel structure welding, it is characterized in that: further comprise circulation tube and circulation tube refractory brick, described circulation tube and circulation tube refractory brick are straight tube shape, on described tubular stinger, directly build circulation tube by laying bricks or stones, on described tubular stinger refractory brick, directly build circulation tube refractory brick by laying bricks or stones, and described tubular stinger and bottom steel structure welding mode are groove welding.
2. RH vacuum oven according to claim 1, is characterized in that, described circulation tube refractory brick is that layering is built by laying bricks or stones on described tubular stinger refractory brick, and every layer of corresponding one deck circulation tube of circulation tube refractory brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199666.XU CN203820837U (en) | 2014-04-23 | 2014-04-23 | Rh vacuum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199666.XU CN203820837U (en) | 2014-04-23 | 2014-04-23 | Rh vacuum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820837U true CN203820837U (en) | 2014-09-10 |
Family
ID=51476357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199666.XU Expired - Fee Related CN203820837U (en) | 2014-04-23 | 2014-04-23 | Rh vacuum furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203820837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112296593A (en) * | 2020-10-21 | 2021-02-02 | 武汉市广源宏达实业有限公司 | Air leakage prevention method for RH vacuum furnace insert tube steel liner air chamber |
-
2014
- 2014-04-23 CN CN201420199666.XU patent/CN203820837U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112296593A (en) * | 2020-10-21 | 2021-02-02 | 武汉市广源宏达实业有限公司 | Air leakage prevention method for RH vacuum furnace insert tube steel liner air chamber |
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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: 20170717 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| 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: 20140910 Termination date: 20200423 |